COMM.DSG.001_GB

Data SheetsThree phase

160 - 630 FRAME SIZESINDUSTRIAL APPLICATION

Synchronous Generators

Ed. 11 /05

CONTENTS Page CONTENTS Page

4 PolesStandard configuration SB4 185

MJB 160 SA4 3 MA4 188SB4 7 MB4 191SC4 11 MJB 225 SA4 194MA4 15 SB4 197MB4 19 MA4 200

MJB 200 SA4 23 LA4 203SB4 27 MJB 250 MA4 206MA4 31 MB4 209MB4 35 LA4 212

MJB 225 SA4 39 MJB 315 SA4 215SB4 43 SB4 218MA4 47 MA4 221LA4 51 MJB 355 SA4 224

MJB 250 MA4 55 SB4 227MB4 59 MB4 230LA4 63 MJB 400 MA4 233LB4 67 MB4 236

MJB 315 SA4 71 LA4 239SB4 75 LB4 242MA4 79 60 Hz dedicated - 6 leads configurationMB4 83 MJB 355 MA4 245

MJB 355 SA4 87 MJB 400 MA4 248SB4 91 MB4 251MA4 95 LA4 254MB4 99 LB4 257

MJB 400 MA4 103 6 Poles 50/60HzMB4 107 MJB 400 SA6 260LA4 111 SB6 264LB4 115 SC6 268

MJB 500 SA4 119 MA6 272SC4 123 MB6 276MB4 127 LA6 280LA4 131 LB6 284

MJB 560 MA4 135 MJB 500 SA6 288LA4 139 SC6 292

MJB 630 SA4 143 MB6 296MA4 147 LA6 300LA4 151 8 Poles 50/60Hz

12 leads configuration MJB 400 SA8 304MJB 400 MB4 155 SB8 308

LA4 159 SC8 312LB4 163 MA8 316

60Hz dedicated - 12 leads configuration MB8 320MJB 160 SA4 167 LA8 324

SB4 170 LB8 328SC4 173 MJB 500 SA8 332MA4 176 SC8 336MB4 179 MB8 340

MJB 200 SA4 182 LA8 344

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 17,0 17,0 17,0 17,0 17,6 18,9 20,1 20,1 21,4kW 13,6 13,6 13,6 13,6 14,1 15,1 16,1 16,1 17,14/4 83,3 85,6 85,3 84,2 82,8 83,8 84,6 85,5 86,4

EFFICIENCY (%) @ 0,8 p.f. 3/4 85,8 87,1 86,7 86,4 85,8 86,5 87,0 87,6 88,32/4 87,2 87,6 87,4 87,3 87,8 87,8 88,1 88,3 88,84/4 86,5 88,4 88,1 87,2 86,0 86,8 87,6 88,3 89,0

EFFICIENCY (%) @ 1,0 p.f. 3/4 88,6 89,6 89,3 89,0 88,6 89,2 89,5 90,0 90,62/4 89,7 90,1 89,9 89,8 90,2 90,2 90,4 90,6 91,0

SHORT CIRCUIT RATIO 0,41 0,45 0,48 0,54 0,33 0,37 0,38 0,42 0,43REACTANCES (%)Direct axis synchronous xd 275 250 230 205 345 310 295 270 260Quadrature axis synchronous xq 155 140 130 115 195 175 165 150 145Direct axis transient x'd 27,1 24,5 22,8 20,2 33,8 30,2 28,8 26,3 25,7Direct axis subtransient x"d 13,3 12,0 11,1 9,9 16,5 14,8 14,1 12,9 12,6Quadrature axis subtransient x"q 14,6 13,2 12,3 10,9 18,2 16,3 15,5 14,2 13,9Negative sequence x2 13,4 12,1 11,2 10,0 16,7 14,9 14,2 13,0 12,7Zero sequence x0 1,8 1,6 1,5 1,3 2,2 2,0 1,9 1,7 1,7

TIME CONSTANTS [s]Open circuit (T'do) 0,4 Subtransient (T''d) 0,008Transient (T'd) 0,035 Armature (Ta) 0,005

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6310 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 120Inertia (J) (IM B34) [kgm2] 0,109Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,11 / 0,14Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [ Ω] @ 20 °C - Star series 1,5Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

- SAE / IM B34

Winding pitch

RATING

V

50 Hz-1500 min-1 / 60 Hz-1800 min-1

>= 300%

4 POLES

50

WINDING DATA Winding code

Number of leads

+/- 1 %speed from -2% to +5%, p.f. from 0,8 to 1)

AMBIENT TEMPERATURE TEMPERATURE RISE INSULATION CLASS

POWER FACTOR

SIN.DT.001.4 3

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

82

84

86

88

90

92

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

82

84

86

88

90

92

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

82

84

86

88

90

92

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

82

84

86

88

90

92

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.001.4 4

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

82

84

86

88

90

92

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

82

84

86

88

90

92

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

82

84

86

88

90

92

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

82

84

86

88

90

92

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

82

84

86

88

90

92

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.001.4 5

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

∆ P = Pn x (Is / In) / (cosϕn x ηn)

50 Hz - 1500 min-1

60 Hz - 1800 min-1

0

10

20

30

40

50

0 10 20 30 40 50 60

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

10

20

30

40

50

60

0 10 20 30 40 50 60 70

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V460 V480 V

SIN.DT.001.4 6

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SB 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 18,8 20,0 20,0 20,0 21,2 22,4 23,5 23,5 24,7kW 15,1 16,0 16,0 16,0 16,9 17,9 18,8 18,8 19,84/4 85,9 87,4 87,2 86,4 84,8 86,1 86,7 87,5 88,2

EFFICIENCY (%) @ 0,8 p.f. 3/4 88,3 89,1 88,9 88,5 87,6 88,5 88,7 89,4 89,82/4 89,4 89,6 89,7 89,6 89,3 89,7 90,0 90,0 90,34/4 88,6 89,9 89,7 89,0 87,8 88,8 89,3 89,9 90,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 90,7 91,3 91,1 90,7 90,0 90,8 91,0 91,5 91,92/4 91,5 91,7 91,7 91,6 91,5 91,8 92,0 92,0 92,3

SHORT CIRCUIT RATIO 0,48 0,50 0,54 0,61 0,36 0,40 0,43 0,47 0,49REACTANCES (%)Direct axis synchronous xd 240 230 215 190 325 285 270 245 235Quadrature axis synchronous xq 135 130 120 105 185 160 150 140 135Direct axis transient x'd 23,5 22,5 20,9 18,6 31,7 27,9 26,3 24,0 23,2Direct axis subtransient x"d 11,3 10,8 10,0 8,9 15,2 13,4 12,6 11,5 11,1Quadrature axis subtransient x"q 13,3 12,8 11,9 10,6 18,0 15,9 14,9 13,7 13,2Negative sequence x2 12,3 11,8 11,0 9,8 16,6 14,6 13,8 12,6 12,1Zero sequence x0 1,4 1,3 1,2 1,1 1,8 1,6 1,5 1,4 1,3

TIME CONSTANTS [s]Open circuit (T'do) 0,46 Subtransient (T''d) 0,008Transient (T'd) 0,035 Armature (Ta) 0,005

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6310 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 130Inertia (J) (IM B34) [kgm2] 0,124Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,11 / 0,14Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [ Ω] @ 20 °C - Star series 0,9Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

INSULATION CLASS Number of leads POWER FACTOR Winding pitch

AMBIENT TEMPERATURE WINDING DATA TEMPERATURE RISE Winding code

50 Hz-1500 min-1 / 60 Hz-1800 min-14 POLES

50

V

RATING

>= 300%+/- 1 %

speed from -2% to +5%, p.f. from 0,8 to 1)

- SAE / IM B34

SIN.DT.002.4 7

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.002.4 8

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.002.4 9

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

60 Hz - 1800 min-1

50 Hz - 1500 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

5

10

15

20

25

30

35

40

0 10 20 30 40 50 60

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

5

10

15

20

25

30

35

40

45

50

0 10 20 30 40 50 60 70

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.002.4 10

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SC 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 24,7 26,0 26,0 26,0 28,6 30,6 31,2 31,2 33,8kW 19,8 20,8 20,8 20,8 22,9 24,4 25,0 25,0 27,04/4 86,2 87,5 87,1 86,8 85,9 86,5 86,9 87,7 88,3

EFFICIENCY (%) @ 0,8 p.f. 3/4 88,4 88,9 88,9 88,7 88,3 88,6 89,0 89,5 89,92/4 89,5 89,4 89,4 89,4 89,5 89,7 90,1 90,1 90,44/4 88,9 90,0 89,6 89,4 88,6 89,1 89,5 90,1 90,7

EFFICIENCY (%) @ 1,0 p.f. 3/4 90,7 91,1 91,1 90,9 90,6 90,9 91,2 91,6 91,92/4 91,6 91,5 91,5 91,5 91,6 91,8 92,1 92,1 92,3

SHORT CIRCUIT RATIO 0,43 0,45 0,48 0,54 0,31 0,35 0,38 0,41 0,42REACTANCES (%)Direct axis synchronous xd 240 230 215 190 335 300 275 250 250Quadrature axis synchronous xq 135 130 120 105 190 170 155 140 140Direct axis transient x'd 23,2 22,0 20,4 18,2 32,2 28,7 26,2 24,0 23,8Direct axis subtransient x"d 10,5 10,0 9,3 8,3 14,6 13,0 11,9 10,9 10,8Quadrature axis subtransient x"q 12,6 12,0 11,1 9,9 17,6 15,6 14,3 13,1 13,0Negative sequence x2 11,6 11,0 10,2 9,1 16,1 14,3 13,1 12,0 11,9Zero sequence x0 2,2 2,1 2,0 1,7 3,1 2,7 2,5 2,3 2,3

TIME CONSTANTS [s]Open circuit (T'do) 0,35 Subtransient (T''d) 0,005Transient (T'd) 0,035 Armature (Ta) 0,004

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6310 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 140Inertia (J) (IM B34) [kgm2] 0,135Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,11 / 0,14Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,65Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-1500 min-1 / 60 Hz-1800 min-1

>= 300%+/- 1 %

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES

50

V

- SAE / IM B34

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR Winding pitch

RATING

SIN.DT.003.4 11

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SC 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effi

cien

cy [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.003.4 12

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SC 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.003.4 13

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SC 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 10 20 30 40 50 60 70 80

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

10

20

30

40

50

60

0 10 20 30 40 50 60 70 80 90

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.003.4 14

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 25,9 28,0 28,0 28,0 29,0 31,1 33,2 33,2 34,2kW 20,7 22,4 22,4 22,4 23,2 24,9 26,5 26,5 27,44/4 87,0 88,2 87,7 87,3 86,9 87,4 87,9 88,4 89,2

EFFICIENCY (%) @ 0,8 p.f. 3/4 89,0 89,6 89,1 89,1 89,0 89,4 89,6 90,0 90,42/4 90,2 90,4 89,9 89,9 90,3 90,3 90,4 90,6 90,84/4 89,5 90,5 90,2 89,8 89,5 89,9 90,3 90,7 91,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 91,2 91,6 91,3 91,3 91,2 91,5 91,7 92,0 92,32/4 92,1 92,3 91,9 92,0 92,2 92,3 92,4 92,5 92,7

SHORT CIRCUIT RATIO 0,39 0,40 0,43 0,48 0,29 0,32 0,34 0,37 0,39REACTANCES (%)Direct axis synchronous xd 230 225 210 185 310 275 265 240 230Quadrature axis synchronous xq 130 125 115 105 170 155 145 135 125Direct axis transient x'd 20,0 19,5 18,1 16,1 26,9 24,0 22,9 21,0 19,9Direct axis subtransient x"d 9,6 9,4 8,7 7,8 13,0 11,6 11,0 10,1 9,6Quadrature axis subtransient x"q 11,5 11,2 10,4 9,3 15,4 13,8 13,2 12,0 11,4Negative sequence x2 10,6 10,3 9,6 8,5 14,2 12,7 12,1 11,1 10,5Zero sequence x0 1,2 1,2 1,1 1,0 1,7 1,5 1,4 1,3 1,2

TIME CONSTANTS [s]Open circuit (T'do) 0,64 Subtransient (T''d) 0,008Transient (T'd) 0,045 Armature (Ta) 0,006

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6310 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 165Inertia (J) (IM B34) [kgm2] 0,160Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,11 / 0,14Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,38Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

Number of leads

+/- 1 %speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES

50

50 Hz-1500 min-1 / 60 Hz-1800 min-1

V

RATING

- SAE / IM B34

>= 300%

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS

SIN.DT.004.4 15

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.004.4 16

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effi

cien

cy [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.004.4 17

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 10 20 30 40 50 60 70 80

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

10

20

30

40

50

0 10 20 30 40 50 60 70 80 90

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.004.4 18

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MB 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 30,9 32,0 32,0 32,0 33,1 35,2 38,4 38,4 40,0kW 24,7 25,6 25,6 25,6 26,5 28,2 30,7 30,7 32,04/4 87,4 88,3 87,9 87,7 87,2 87,8 88,3 88,8 89,1

EFFICIENCY (%) @ 0,8 p.f. 3/4 89,2 89,8 89,3 89,3 89,1 89,4 89,8 90,3 90,72/4 90,3 90,6 89,9 90,1 90,3 90,5 90,6 90,8 91,04/4 89,9 90,6 90,3 90,1 89,7 90,2 90,6 91,1 91,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 91,3 91,8 91,5 91,4 91,2 91,5 91,9 92,2 92,62/4 92,2 92,5 92,0 92,1 92,3 92,4 92,5 92,7 92,8

SHORT CIRCUIT RATIO 0,43 0,46 0,50 0,56 0,33 0,38 0,39 0,42 0,44REACTANCES (%)Direct axis synchronous xd 260 245 230 200 335 300 290 265 255Quadrature axis synchronous xq 145 135 125 110 185 165 160 145 140Direct axis transient x'd 22,0 20,5 19,0 16,9 28,2 25,0 24,4 22,3 21,4Direct axis subtransient x"d 10,5 9,8 9,1 8,1 13,5 12,0 11,7 10,7 10,2Quadrature axis subtransient x"q 12,4 11,6 10,8 9,6 15,9 14,2 13,8 12,6 12,1Negative sequence x2 11,5 10,7 9,9 8,8 14,7 13,1 12,7 11,7 11,1Zero sequence x0 1,5 1,4 1,3 1,2 1,9 1,7 1,7 1,5 1,5

TIME CONSTANTS [s]Open circuit (T'do) 0,66 Subtransient (T''d) 0,008Transient (T'd) 0,045 Armature (Ta) 0,007

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6310 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 175Inertia (J) (IM B34) [kgm2] 0,170Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,11 / 0,14Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [ Ω] @ 20 °C - Star series 0,33Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

POWER FACTOR Winding pitch

50

INSULATION CLASS Number of leads

RATING

V

AMBIENT TEMPERATURE WINDING DATA

4 POLES

TEMPERATURE RISE Winding code

- SAE / IM B34

>= 300%+/- 1 %

speed from -2% to +5%, p.f. from 0,8 to 1)

50 Hz-1500 min-1 / 60 Hz-1800 min-1

SIN.DT.005.4 19

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.005.4 20

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.005.4 21

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

50 Hz - 1500 min-1

0

10

20

30

40

0 10 20 30 40 50 60 70 80 90

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

10

20

30

40

50

0 20 40 60 80 100 120

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.005.4 22

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 40,0 42,0 42,0 42,0 45,5 48,0 51,0 51,0 51,0kW 32,0 33,6 33,6 33,6 36,4 38,4 40,8 40,8 40,84/4 87,7 88,5 88,5 88,0 87,3 88,4 88,9 89,3 89,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 89,5 89,8 89,7 89,2 89,0 89,9 90,2 90,6 90,62/4 90,4 90,5 90,4 89,9 90,2 90,8 90,9 91,2 91,34/4 90,1 90,8 90,7 90,3 89,8 90,7 91,1 91,5 91,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 91,6 91,9 91,8 91,4 91,2 91,9 92,1 92,5 92,52/4 92,4 92,4 92,3 91,9 92,2 92,6 92,7 93,0 93,0

SHORT CIRCUIT RATIO 0,40 0,42 0,45 0,51 0,29 0,33 0,35 0,38 0,42REACTANCES (%)Direct axis synchronous xd 290 275 255 225 395 350 330 305 280Quadrature axis synchronous xq 165 155 145 130 225 195 185 170 155Direct axis transient x'd 24,6 23,3 21,6 19,3 33,6 29,5 28,1 25,7 23,6Direct axis subtransient x"d 12,6 11,9 11,1 9,8 17,1 15,1 14,3 13,1 12,0Quadrature axis subtransient x"q 14,5 13,7 12,7 11,3 19,7 17,4 16,5 15,1 13,9Negative sequence x2 13,5 12,8 11,9 10,6 18,4 16,2 15,4 14,1 13,0Zero sequence x0 2,7 2,6 2,4 2,1 3,7 3,3 3,1 2,9 2,6

TIME CONSTANTS [s]Open circuit (T'do) 0,52 Subtransient (T''d) 0,010Transient (T'd) 0,055 Armature (Ta) 0,009

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6313 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 205Inertia (J) (IM B34) [kgm2] 0,275Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,21 / 0,25Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [ Ω] @ 20 °C - Star series 0,32Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

POWER FACTOR Winding pitch

50 Hz-1500 min-1 / 60 Hz-1800 min-1

>= 300%+/- 0,5 %

4 POLES

50

V

- SAE / IM B34

WINDING DATA

Number of leads

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

AMBIENT TEMPERATURE TEMPERATURE RISE Winding code INSULATION CLASS

SIN.DT.006.4 23

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.006.4 24

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.006.4 25

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

0

10

20

30

40

50

0 20 40 60 80 100 120

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

10

20

30

40

50

60

0 20 40 60 80 100 120 140

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.006.4 26

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SB 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 46,5 48,0 48,0 48,0 51,0 56,5 59,5 59,5 59,5kW 37,2 38,4 38,4 38,4 40,8 45,2 47,6 47,6 47,64/4 88,1 88,7 88,7 88,1 87,8 88,6 89,1 89,2 89,3

EFFICIENCY (%) @ 0,8 p.f. 3/4 89,8 90,0 89,9 89,5 89,3 89,8 90,2 90,3 90,42/4 90,6 90,6 90,5 90,1 90,3 90,5 90,7 90,9 91,04/4 90,5 90,9 91,0 90,5 90,2 90,8 91,3 91,3 91,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 91,8 92,0 92,0 91,6 91,4 91,8 92,1 92,3 92,32/4 92,5 92,5 92,4 92,1 92,2 92,4 92,6 92,7 92,8

SHORT CIRCUIT RATIO 0,37 0,40 0,43 0,48 0,28 0,31 0,33 0,36 0,39REACTANCES (%)Direct axis synchronous xd 290 270 250 225 380 355 330 305 280Quadrature axis synchronous xq 160 150 140 125 210 195 185 170 155Direct axis transient x'd 24,2 22,5 20,9 18,6 31,8 29,4 27,7 25,3 23,2Direct axis subtransient x"d 12,2 11,4 10,6 9,4 16,1 14,9 14,0 12,8 11,8Quadrature axis subtransient x"q 14,2 13,2 12,3 10,9 18,6 17,2 16,2 14,8 13,6Negative sequence x2 13,2 12,3 11,4 10,2 17,4 16,1 15,1 13,8 12,7Zero sequence x0 2,8 2,6 2,4 2,1 3,7 3,4 3,2 2,9 2,7

TIME CONSTANTS [s]Open circuit (T'do) 0,57 Subtransient (T''d) 0,010Transient (T'd) 0,055 Armature (Ta) 0,010

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6313 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 215Inertia (J) (IM B34) [kgm2] 0,301Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,21 / 0,25Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,23Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

- SAE / IM B34

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

50 Hz-1500 min-1 / 60 Hz-1800 min-1

RATING

V

>= 300%+/- 0,5 %

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES

50

SIN.DT.007.4 27

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.007.4 28

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

858789919395

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

85

87

89

91

93

95

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.007.4 29

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 20 40 60 80 100 120 140

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

10

20

30

40

50

0 20 40 60 80 100 120 140 160

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.007.4 30

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 59,5 62,0 62,0 62,0 64,5 70,0 73,5 73,5 76,0kW 47,6 49,6 49,6 49,6 51,6 56,0 58,8 58,8 60,84/4 89,7 90,1 90,1 89,7 89,0 89,8 90,2 90,6 90,7

EFFICIENCY (%) @ 0,8 p.f. 3/4 91,0 91,2 91,0 90,6 90,4 91,0 91,2 91,5 91,52/4 91,7 91,7 91,5 91,0 91,1 91,5 91,6 91,9 91,84/4 91,8 92,1 92,1 91,8 91,2 91,9 92,2 92,5 92,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 92,8 93,0 92,9 92,5 92,3 92,8 93,0 93,2 93,22/4 93,4 93,4 93,2 92,8 92,9 93,3 93,3 93,6 93,5

SHORT CIRCUIT RATIO 0,39 0,41 0,44 0,50 0,30 0,33 0,35 0,38 0,40REACTANCES (%)Direct axis synchronous xd 285 270 250 225 375 340 315 290 275Quadrature axis synchronous xq 160 150 140 125 205 190 175 160 155Direct axis transient x'd 23,4 22,0 20,4 18,2 30,4 27,6 25,9 23,7 22,5Direct axis subtransient x"d 11,6 10,9 10,1 9,0 15,1 13,7 12,8 11,7 11,1Quadrature axis subtransient x"q 13,8 13,0 12,1 10,7 18,0 16,3 15,3 14,0 13,3Negative sequence x2 12,7 11,9 11,1 9,8 16,5 14,9 14,0 12,8 12,2Zero sequence x0 2,7 2,5 2,3 2,1 3,5 3,1 2,9 2,7 2,6

TIME CONSTANTS [s]Open circuit (T'do) 0,60 Subtransient (T''d) 0,010Transient (T'd) 0,06 Armature (Ta) 0,011

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6313 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 260Inertia (J) (IM B34) [kgm2] 0,361Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,21 / 0,25Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,14Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

4 POLES

50

50 Hz-1500 min-1 / 60 Hz-1800 min-1

WINDING DATAWinding code

Number of leadsWinding pitch

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

V

- SAE / IM B34

+/- 0,5 %>= 300%

AMBIENT TEMPERATURETEMPERATURE RISEINSULATION CLASS

POWER FACTOR

SIN.DT.008.5 31

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effi

cien

cy [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.008.5 32

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.008.5 33

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 20 40 60 80 100 120 140 160 180

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

10

20

30

40

50

0 50 100 150 200 250

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.008.5 34

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MB 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 68,5 72,0 72,0 72,0 77,5 83,5 87,0 87,0 87,0kW 54,8 57,6 57,6 57,6 62,0 66,8 69,6 69,6 69,64/4 89,9 90,5 90,4 89,8 89,3 90,0 90,5 90,8 90,9

EFFICIENCY (%) @ 0,8 p.f. 3/4 91,1 91,4 91,1 90,6 90,6 91,0 91,3 91,5 91,62/4 91,7 91,7 91,4 90,9 91,2 91,4 91,7 91,8 91,74/4 91,9 92,4 92,3 91,8 91,5 92,0 92,4 92,6 92,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 92,9 93,2 92,9 92,5 92,5 92,8 93,1 93,2 93,32/4 93,4 93,4 93,1 92,7 93,0 93,2 93,4 93,5 93,4

SHORT CIRCUIT RATIO 0,40 0,42 0,45 0,51 0,29 0,33 0,35 0,38 0,42REACTANCES (%)Direct axis synchronous xd 280 265 245 220 380 340 320 290 265Quadrature axis synchronous xq 155 145 135 120 210 185 175 160 145Direct axis transient x'd 22,5 21,3 19,8 17,6 30,5 27,4 25,5 23,4 21,4Direct axis subtransient x"d 11,1 10,5 9,8 8,7 15,0 13,5 12,6 11,5 10,6Quadrature axis subtransient x"q 13,3 12,6 11,7 10,4 18,0 16,2 15,1 13,8 12,7Negative sequence x2 12,1 11,5 10,7 9,5 16,5 14,8 13,8 12,6 11,6Zero sequence x0 2,3 2,2 2,0 1,8 3,1 2,8 2,6 2,4 2,2

TIME CONSTANTS [s]Open circuit (T'do) 0,76 Subtransient (T''d) 0,01Transient (T'd) 0,062 Armature (Ta) 0,012

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6313 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 300Inertia (J) (IM B34) [kgm2] 0,426Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,21 / 0,25Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [ Ω] @ 20 °C - Star series 0,1Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

+/- 0,5 %speed from -2% to +5%, p.f. from 0,8 to 1)

V

- SAE / IM B34

50 Hz-1500 min-1 / 60 Hz-1800 min-14 POLES

>= 300%

50

Number of leads Winding pitch

AMBIENT TEMPERATURE WINDING DATA TEMPERATURE RISE Winding code INSULATION CLASS

RATING

POWER FACTOR

SIN.DT.009.4 35

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

87

89

91

93

95

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

87

89

91

93

95

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

87

89

91

93

95

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

87

89

91

93

95

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.009.4 36

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

87

89

91

93

95

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

87

89

91

93

95

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

87

89

91

93

95

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

87

89

91

93

95

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

87

89

91

93

95

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.009.4 37

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 20 40 60 80 100 120 140 160 180 200

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

10

20

30

40

50

0 50 100 150 200 250

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.009.4 38

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 85 85 85 85 91 102 102 108 108kW 68 68 68 68 73 82 82 86 864/4 90,5 91,0 90,9 90,8 90,2 90,5 91,0 91,2 91,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 91,5 91,8 91,8 91,8 91,5 91,7 92,1 92,3 92,52/4 91,9 92,1 92,0 92,1 92,1 92,4 92,8 92,8 92,94/4 92,4 92,8 92,8 92,7 92,2 92,4 92,8 93,0 93,2

EFFICIENCY (%) @ 1,0 p.f. 3/4 93,2 93,5 93,5 93,5 93,2 93,4 93,7 93,9 94,12/4 93,6 93,8 93,6 93,8 93,7 94,0 94,3 94,3 94,4

SHORT CIRCUIT RATIO 0,34 0,38 0,41 0,46 0,27 0,29 0,32 0,33 0,36REACTANCES (%)Direct axis synchronous xd 315 285 265 235 405 380 340 330 300Quadrature axis synchronous xq 175 160 150 130 225 215 190 185 170Direct axis transient x'd 24,9 22,5 20,9 18,6 31,9 30,0 26,8 25,9 23,8Direct axis subtransient x"d 12,0 10,8 10,0 8,9 15,3 14,4 12,9 12,4 11,4Quadrature axis subtransient x"q 13,3 12,0 11,1 9,9 17,0 16,0 14,3 13,8 12,7Negative sequence x2 12,6 11,4 10,6 9,4 16,2 15,2 13,6 13,1 12,0Zero sequence x0 2,8 2,5 2,3 2,1 3,5 3,3 3,0 2,9 2,6

TIME CONSTANTS [s]Open circuit (T'do) 0,82 Subtransient (T''d) 0,005Transient (T'd) 0,071 Armature (Ta) 0,005

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6215 2RS C3 / PrelubricatedN-end bearing/Lubrication 6311 2RS C3 / PrelubricatedWeight (IM B34) [kg] 305Inertia (J) (IM B34) [kgm2] 0,632Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,31 / 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,11Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

+/- 0,5 %speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES

50

50 Hz-1500 min-1 / 60 Hz-1800 min-1

V

- SAE / IM B34

>= 300%

Number of leadsPOWER FACTOR Winding pitch

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS

RATING

SIN.DT.010.5 39

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.010.5 40

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.010.5 41

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 50 100 150 200 250

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V440 V

0

10

20

30

40

50

60

0 50 100 150 200 250 300

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.010.5 42

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SB 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 92 92 92 92 97 108 114 114 114kW 74 74 74 74 78 87 91 91 914/4 91,0 91,5 91,4 91,4 90,9 91,1 91,4 91,8 92,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 91,9 92,3 92,2 92,2 92,0 92,3 92,6 92,8 93,02/4 92,3 92,5 92,4 92,5 92,6 92,9 93,1 93,2 93,24/4 92,8 93,2 93,2 93,1 92,7 92,9 93,2 93,5 93,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 93,5 93,8 93,8 93,8 93,6 93,9 94,1 94,3 94,42/4 93,9 94,1 94,0 94,0 94,1 94,4 94,5 94,6 94,6

SHORT CIRCUIT RATIO 0,35 0,39 0,42 0,47 0,28 0,30 0,32 0,35 0,38REACTANCES (%)Direct axis synchronous xd 305 275 255 225 385 360 335 310 285Quadrature axis synchronous xq 165 150 140 125 210 195 185 170 155Direct axis transient x'd 23,8 21,5 20,0 17,8 30,3 28,1 26,3 24,1 22,1Direct axis subtransient x"d 11,3 10,2 9,5 8,4 14,4 13,3 12,5 11,4 10,5Quadrature axis subtransient x"q 12,5 11,3 10,5 9,3 15,9 14,7 13,8 12,7 11,6Negative sequence x2 11,9 10,7 9,9 8,8 15,1 14,0 13,1 12,0 11,0Zero sequence x0 2,5 2,3 2,1 1,9 3,2 3,0 2,8 2,6 2,4

TIME CONSTANTS [s]Open circuit (T'do) 0,90 Subtransient (T''d) 0,006Transient (T'd) 0,075 Armature (Ta) 0,006

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6215 2RS C3 / PrelubricatedN-end bearing/Lubrication 6311 2RS C3 / PrelubricatedWeight (IM B34) [kg] 355Inertia (J) (IM B34) [kgm2] 0,698Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,31 / 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,085Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

- SAE / IM B34

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR Winding pitch

50 Hz-1500 min-1 / 60 Hz-1800 min-1

RATING

V

>= 300%+/- 0,5 %

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES

50

SIN.DT.011.5 43

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.011.5 44

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.011.5 45

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 50 100 150 200 250 300

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

0

10

20

30

40

0 50 100 150 200 250

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V440 V

SIN.DT.011.5 46

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 MA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 100 105 105 105 110 121 126 131 131kW 80 84 84 84 88 97 101 105 1054/4 91,3 91,8 91,7 91,5 91,1 91,4 91,9 92,2 92,6

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,1 92,4 92,3 92,2 92,2 92,5 92,7 92,9 93,12/4 92,5 92,6 92,5 92,5 92,6 92,8 93,0 93,1 93,24/4 93,1 93,5 93,4 93,2 92,9 93,1 93,6 93,8 94,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 93,7 93,9 93,8 93,8 93,8 94,0 94,2 94,4 94,52/4 94,0 94,1 94,1 94,0 94,1 94,3 94,5 94,5 94,6

SHORT CIRCUIT RATIO 0,38 0,40 0,43 0,48 0,29 0,31 0,34 0,35 0,38REACTANCES (%)Direct axis synchronous xd 290 275 255 225 385 350 325 310 285Quadrature axis synchronous xq 160 150 140 125 210 190 180 170 155Direct axis transient x'd 22,1 21,0 19,5 17,4 29,3 26,8 25,0 23,8 21,9Direct axis subtransient x"d 10,4 9,9 9,2 8,2 13,8 12,6 11,8 11,2 10,3Quadrature axis subtransient x"q 11,5 10,9 10,1 9,0 15,2 13,9 13,0 12,4 11,4Negative sequence x2 10,9 10,4 9,7 8,6 14,5 13,3 12,4 11,8 10,8Zero sequence x0 2,3 2,2 2,0 1,8 3,1 2,8 2,6 2,5 2,3

TIME CONSTANTS [s]Open circuit (T'do) 0,95 Subtransient (T''d) 0,006Transient (T'd) 0,078 Armature (Ta) 0,006

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6215 2RS C3 / PrelubricatedN-end bearing/Lubrication 6311 2RS C3 / PrelubricatedWeight (IM B34) [kg] 370Inertia (J) (IM B34) [kgm2] 0,789Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,31 / 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,075Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 300%+/- 0,5 %

speed from -2% to +5%, p.f. from 0,8 to 1)

- SAE / IM B34

50

V

RATING

50 Hz-1500 min-1 / 60 Hz-1800 min-14 POLES

Number of leadsPOWER FACTOR Winding pitch

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS

SIN.DT.12.5 47

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 MA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.12.5 48

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.12.5 49

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 50 100 150 200 250 300

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V440 V

0

10

20

30

40

50

0 50 100 150 200 250 300 350

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.12.5 50

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 LA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 127 132 132 132 137 148 153 158 158kW 101 106 106 106 110 118 122 127 1274/4 91,9 92,2 91,8 91,7 91,7 92,1 92,5 92,7 93,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,5 92,6 92,4 92,3 92,7 93,0 93,1 93,3 93,32/4 92,7 92,7 92,6 92,5 93,0 93,2 93,3 93,4 93,34/4 93,5 93,8 93,4 93,4 93,4 93,8 94,0 94,2 94,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,0 94,1 94,0 93,9 94,2 94,4 94,5 94,6 94,72/4 94,2 94,2 94,1 94,0 94,4 94,6 94,7 94,8 94,7

SHORT CIRCUIT RATIO 0,39 0,42 0,45 0,51 0,30 0,34 0,37 0,39 0,42REACTANCES (%)Direct axis synchronous xd 280 265 245 220 365 330 305 290 265Quadrature axis synchronous xq 155 145 135 120 200 180 165 160 145Direct axis transient x'd 20,5 19,3 17,9 16,0 26,7 24,0 22,2 21,0 19,3Direct axis subtransient x"d 10,1 9,5 8,8 7,9 13,1 11,8 10,9 10,3 9,5Quadrature axis subtransient x"q 11,3 10,6 9,8 8,8 14,7 13,2 12,2 11,5 10,6Negative sequence x2 10,7 10,1 9,4 8,3 14,0 12,6 11,6 11,0 10,1Zero sequence x0 2,3 2,2 2,0 1,8 3,0 2,7 2,5 2,4 2,2

TIME CONSTANTS [s]Open circuit (T'do) 1,08 Subtransient (T''d) 0,006Transient (T'd) 0,087 Armature (Ta) 0,007

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6215 2RS C3 / PrelubricatedN-end bearing/Lubrication 6311 2RS C3 / PrelubricatedWeight (IM B34) [kg] 405Inertia (J) (IM B34) [kgm2] 0,924Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,31 / 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,045Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

V

- SAE / IM B34

50 Hz-1500 min-1 / 60 Hz-1800 min-1

>= 300%

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES

50

+/- 0,5 %

Number of leadsWinding pitch

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS

RATING

POWER FACTOR

SIN.DT.013.5 51

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 LA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.013.5 52

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 LA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.013.5 53

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 LA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 50 100 150 200 250 300 350 400 450

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

0

10

20

30

40

0 50 100 150 200 250 300 350

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.013.5 54

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 165 165 165 165 170 175 185 195 205kW 132 132 132 132 136 140 148 156 1644/4 92,5 92,9 92,8 92,7 91,7 92,2 92,4 92,6 93,6

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,0 93,2 93,1 93,0 92,7 93,1 93,1 93,3 93,82/4 93,2 93,1 93,0 92,8 93,1 93,2 93,3 93,4 93,44/4 94,0 94,4 94,3 94,2 93,4 93,8 94,0 94,1 94,9

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,4 94,6 94,5 94,5 94,2 94,5 94,6 94,7 95,12/4 94,6 94,5 94,5 94,3 94,5 94,6 94,7 94,8 94,8

SHORT CIRCUIT RATIO 0,42 0,47 0,51 0,57 0,34 0,40 0,42 0,44 0,45REACTANCES (%)Direct axis synchronous xd 310 280 260 230 385 330 310 300 290Quadrature axis synchronous xq 150 135 125 110 185 160 150 145 140Direct axis transient x'd 27,1 24,5 22,8 20,2 33,6 28,8 27,2 26,3 25,4Direct axis subtransient x"d 15,0 13,5 12,5 11,2 18,5 15,9 15,0 14,5 14,0Quadrature axis subtransient x"q 16,5 14,9 13,8 12,3 20,4 17,5 16,6 16,0 15,4Negative sequence x2 15,7 14,2 13,2 11,7 19,5 16,7 15,8 15,2 14,7Zero sequence x0 3,2 2,9 2,7 2,4 4,0 3,4 3,2 3,1 3,0

TIME CONSTANTS [s]Open circuit (T'do) 0,95 Subtransient (T''d) 0,011Transient (T'd) 0,09 Armature (Ta) 0,012

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6218 2RS C3 / PrelubricatedN-end bearing/Lubrication 6323 2RS C3 / PrelubricatedWeight (IM B34) [kg] 530Inertia (J) (IM B34) [kgm2] 1,41Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,42 / 0,52Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,032Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

INSULATION CLASS

RATING

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding code

- SAE / IM B34

>= 300%

Number of leadsPOWER FACTOR Winding pitch

+/- 0,5 %speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES

50

50 Hz-1500 min-1 / 60 Hz-1800 min-1

V

SIN.DT.014.5 55

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.014.5 56

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.014.5 57

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 50 100 150 200 250 300 350 400 450

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

10

20

30

40

50

60

0 100 200 300 400 500 600

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.014.5 58

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MB 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 185 185 185 185 195 205 215 220 230kW 148 148 148 148 156 164 172 176 1844/4 92,6 93,0 92,9 92,9 92,0 92,4 92,6 92,8 93,6

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,1 93,2 93,1 93,1 93,0 93,4 93,4 93,6 93,92/4 93,3 93,2 93,1 93,0 93,5 93,7 93,7 93,6 93,94/4 94,1 94,4 94,4 94,4 93,6 94,0 94,1 94,3 94,9

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,5 94,6 94,6 94,5 94,4 94,8 94,8 94,9 95,22/4 94,7 94,6 94,5 94,5 94,8 95,0 95,0 95,0 95,1

SHORT CIRCUIT RATIO 0,41 0,45 0,48 0,54 0,32 0,37 0,39 0,42 0,43REACTANCES (%)Direct axis synchronous xd 300 270 250 225 380 330 310 290 280Quadrature axis synchronous xq 145 130 120 105 180 160 150 140 135Direct axis transient x'd 26,6 24,0 22,3 19,8 33,6 29,5 27,7 25,9 24,9Direct axis subtransient x"d 13,9 12,5 11,6 10,3 17,5 15,4 14,4 13,5 13,0Quadrature axis subtransient x"q 15,4 13,9 12,9 11,5 19,5 17,1 16,0 15,0 14,4Negative sequence x2 14,6 13,2 12,3 10,9 18,5 16,2 15,2 14,2 13,7Zero sequence x0 2,7 2,4 2,2 2,0 3,4 3,0 2,8 2,6 2,5

TIME CONSTANTS [s]Open circuit (T'do) 0,95 Subtransient (T''d) 0,011Transient (T'd) 0,09 Armature (Ta) 0,013

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6218 2RS C3 / PrelubricatedN-end bearing/Lubrication 6313 2RS C3 / PrelubricatedWeight (IM B34) [kg] 590Inertia (J) (IM B34) [kgm2] 1,660Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,42 / 0,52Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,027Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

AMBIENT TEMPERATURETEMPERATURE RISE Winding codeINSULATION CLASS

>= 300%+/- 0,5 %

4 POLES

50

V

- SAE / IM B34

WINDING DATA

Number of leadsPOWER FACTOR Winding pitch

50 Hz-1500 min-1 / 60 Hz-1800 min-1

SIN.DT.015.4 59

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.015.4 60

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.015.4 61

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 100 200 300 400 500 600

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

0

10

20

30

40

50

0 50 100 150 200 250 300 350 400 450 500

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.015.4 62

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 220 220 220 210 225 235 245 255 270kW 176 176 176 168 180 188 196 204 2164/4 92,8 93,2 93,1 93,2 92,7 93,0 93,3 93,4 93,9

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,4 93,6 93,5 93,5 93,7 94,0 94,1 94,2 94,42/4 93,6 93,7 93,6 93,5 94,1 94,3 94,4 94,4 94,44/4 94,3 94,6 94,5 94,6 94,2 94,4 94,7 94,8 95,2

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,8 94,9 94,8 94,8 95,0 95,2 95,3 95,4 95,62/4 95,0 95,0 94,9 94,9 95,4 95,5 95,6 95,6 95,6

SHORT CIRCUIT RATIO 0,36 0,40 0,43 0,51 0,29 0,34 0,36 0,38 0,39REACTANCES (%)Direct axis synchronous xd 340 305 285 240 415 360 335 320 310Quadrature axis synchronous xq 165 150 140 120 205 180 165 160 155Direct axis transient x'd 26,6 24,0 22,3 18,9 32,6 28,4 26,5 25,2 24,5Direct axis subtransient x"d 12,5 11,3 10,5 8,9 15,4 13,4 12,5 11,9 11,6Quadrature axis subtransient x"q 14,0 12,6 11,7 9,9 17,1 14,9 13,9 13,3 12,9Negative sequence x2 13,3 12,0 11,1 9,5 16,3 14,2 13,3 12,6 12,3Zero sequence x0 2,7 2,4 2,2 1,9 3,3 2,8 2,7 2,5 2,5

TIME CONSTANTS [s]Open circuit (T'do) 1,00 Subtransient (T''d) 0,011Transient (T'd) 0,095 Armature (Ta) 0,013

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6218 2RS C3 / PrelubricatedN-end bearing/Lubrication 6313 2RS C3 / PrelubricatedWeight (IM B34) [kg] 660Inertia (J) (IM B34) [kgm2] 1,890Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,42 / 0,52Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,021Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

POWER FACTOR Winding pitch

50 Hz-1500 min-1 / 60 Hz-1800 min-1

>= 300%+/- 0,5 %

4 POLES

50

V

- SAE / IM B34

WINDING DATA

Number of leads

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

AMBIENT TEMPERATURETEMPERATURE RISE Winding codeINSULATION CLASS

SIN.DT.016.4 63

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.016.4 64

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.016.4 65

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 100 200 300 400 500 600 700

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

0

10

20

30

40

50

0 100 200 300 400 500 600

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V440 V

SIN.DT.016.4 66

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LB 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 240 250 235 220 250 260 275 290 300kW 192 200 188 176 200 208 220 232 2404/4 93,0 93,4 93,3 93,3 93,1 93,6 93,7 93,8 93,9

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,4 93,7 93,6 93,5 94,0 94,3 94,4 94,5 94,52/4 93,6 93,7 93,6 93,5 94,3 94,5 94,5 94,5 94,54/4 94,4 94,8 94,7 94,7 94,5 94,9 95,0 95,1 95,2

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,8 95,0 94,9 94,9 95,2 95,5 95,6 95,6 95,62/4 94,9 95,0 94,9 94,9 95,5 95,7 95,6 95,7 95,6

SHORT CIRCUIT RATIO 0,39 0,42 0,48 0,58 0,32 0,36 0,39 0,40 0,42REACTANCES (%)Direct axis synchronous xd 310 290 255 210 385 335 315 305 290Quadrature axis synchronous xq 150 140 120 100 185 160 155 145 140Direct axis transient x'd 26,1 24,5 21,4 17,8 32,6 28,3 26,7 25,8 24,5Direct axis subtransient x"d 12,2 11,5 10,0 8,4 15,3 13,3 12,5 12,1 11,5Quadrature axis subtransient x"q 13,5 12,7 11,1 9,2 16,9 14,7 13,9 13,4 12,7Negative sequence x2 12,9 12,1 10,6 8,8 16,1 14,0 13,2 12,7 12,1Zero sequence x0 3,0 2,8 2,4 2,0 3,7 3,2 3,1 2,9 2,8

TIME CONSTANTS [s]Open circuit (T'do) 1,02 Subtransient (T''d) 0,011Transient (T'd) 0,098 Armature (Ta) 0,013

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6218 2RS C3 / PrelubricatedN-end bearing/Lubrication 6313 2RS C3 / PrelubricatedWeight (IM B34) [kg] 710Inertia (J) (IM B34) [kgm2] 2,06Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,42 / 0,52Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star seriesOverloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

speed from -2% to +5%, p.f. from 0,8 to 1)

AMBIENT TEMPERATURETEMPERATURE RISEINSULATION CLASS

POWER FACTOR Winding pitch

50 Hz-1500 min-1 / 60 Hz-1800 min-1

>= 300%+/- 0,5 %

4 POLES

50

0,0155

WINDING DATAWinding code

Number of leads

RATING

V

- SAE / IM B34

SIN.DT.017.4 67

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.017.4 68

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.017.4 69

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 100 200 300 400 500 600 700 800

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480V

0

10

20

30

40

50

0 100 200 300 400 500 600 700

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.017.4 70

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 300 300 300 280 310 320 350 360 370kW 240 240 240 224 248 256 280 288 2964/4 92,7 93,1 93,0 93,4 92,5 93,1 93,4 93,5 93,8

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,4 93,7 93,6 93,7 93,1 93,5 93,8 93,9 94,12/4 93,9 93,9 93,9 93,8 93,3 93,6 93,9 94,0 94,14/4 94,2 94,5 94,5 94,8 94,0 94,5 94,8 94,8 95,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,8 95,0 94,9 95,0 94,5 94,9 95,1 95,2 95,32/4 95,2 95,2 95,2 95,1 94,7 94,9 95,2 95,3 95,3

SHORT CIRCUIT RATIO 0,30 0,33 0,36 0,43 0,24 0,28 0,29 0,30 0,32REACTANCES (%)Direct axis synchronous xd 400 360 335 280 495 425 415 390 370Quadrature axis synchronous xq 200 180 165 140 245 215 210 195 185Direct axis transient x'd 35,5 32,0 29,7 24,7 44,0 37,9 37,0 34,8 32,9Direct axis subtransient x"d 17,2 15,5 14,4 12,0 21,3 18,3 17,9 16,9 15,9Quadrature axis subtransient x"q 19,4 17,5 16,3 13,5 24,0 20,7 20,2 19,1 18,0Negative sequence x2 18,3 16,5 15,3 12,7 22,7 19,5 19,1 18,0 17,0Zero sequence x0 4,4 4,0 3,7 3,1 5,5 4,7 4,6 4,4 4,1

TIME CONSTANTS [s]Open circuit (T'do) 1,6 Subtransient (T''d) 0,014Transient (T'd) 0,145 Armature (Ta) 0,018

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6319 2RS C3 / PrelubricatedN-end bearing/Lubrication 6315 2RS C3 / PrelubricatedWeight (IM B34) [kg] 830Inertia (J) (IM B34) [kgm2] 3,66Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,83 / 1,0Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star seriesOverloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

16

>= 300%+/- 0,5 %

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

V

- SAE / IM B34

4 POLES

50

50 Hz-1500 min-1 / 60 Hz-1800 min-1

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

SIN.DT.018.5 71

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.018.5 72

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.018.5 73

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 100 200 300 400 500 600 700 800 900 1000

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

0

10

20

30

40

50

0 100 200 300 400 500 600 700 800

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.018.5 74

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SB 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 350 350 350 340 360 370 400 420 425kW 280 280 280 272 288 296 320 336 3404/4 93,2 93,4 93,4 93,4 92,8 93,3 93,5 93,7 94,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,8 93,9 93,9 93,9 93,4 93,7 93,9 94,0 94,22/4 94,1 94,1 94,1 94,1 93,5 93,8 94,0 94,1 94,14/4 94,6 94,8 94,8 94,8 94,3 94,7 94,8 95,0 95,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,1 95,2 95,2 95,2 94,8 95,0 95,2 95,3 95,42/4 95,3 95,3 95,3 95,3 94,8 95,1 95,2 95,3 95,4

SHORT CIRCUIT RATIO 0,32 0,35 0,38 0,44 0,26 0,30 0,31 0,32 0,35REACTANCES (%)Direct axis synchronous xd 380 345 320 275 470 405 390 375 350Quadrature axis synchronous xq 195 175 165 140 240 205 200 190 175Direct axis transient x'd 33,2 30,0 27,9 24,1 41,0 35,2 34,0 32,7 30,4Direct axis subtransient x"d 15,5 14,0 13,0 11,2 19,1 16,4 15,9 15,2 14,2Quadrature axis subtransient x"q 18,2 16,4 15,2 13,2 22,4 19,2 18,6 17,9 16,6Negative sequence x2 16,8 15,2 14,1 12,2 20,8 17,8 17,2 16,6 15,4Zero sequence x0 4,2 3,8 3,5 3,1 5,2 4,5 4,3 4,1 3,8

TIME CONSTANTS [s]Open circuit (T'do) 1,42 Subtransient (T''d) 0,014Transient (T'd) 0,14 Armature (Ta) 0,018

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6319 2RS C3 / PrelubricatedN-end bearing/Lubrication 6315 2RS C3 / PrelubricatedWeight (IM B34) [kg] 920Inertia (J) (IM B34) [kgm2] 4,25Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,83 / 1,0Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star seriesOverloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

50 Hz-1500 min-1 / 60 Hz-1800 min-1

AMBIENT TEMPERATURE WINDING DATA

- SAE / IM B34

4 POLES

50

12,5

>= 300%+/- 0,5 %

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

V

SIN.DT.019.5 75

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.019.5 76

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.019.5 77

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

0

10

20

30

40

50

0 100 200 300 400 500 600 700 800 900

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.019.5 78

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 410 410 410 410 420 430 470 490 500kW 328 328 328 328 336 344 376 392 4004/4 93,4 93,7 93,6 93,7 93,3 93,7 93,9 94,1 94,2

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,0 94,1 94,1 94,2 93,8 94,0 94,2 94,3 94,52/4 94,4 94,3 94,3 94,3 94,0 94,2 94,3 94,4 94,54/4 94,8 95,0 94,9 95,0 94,7 95,0 95,2 95,3 95,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,3 95,3 95,3 95,4 95,1 95,3 95,4 95,5 95,72/4 95,6 95,5 95,5 95,5 95,3 95,4 95,5 95,6 95,7

SHORT CIRCUIT RATIO 0,34 0,38 0,41 0,46 0,28 0,33 0,33 0,35 0,37REACTANCES (%)Direct axis synchronous xd 365 330 305 275 450 385 375 360 335Quadrature axis synchronous xq 195 175 165 145 240 205 200 190 180Direct axis transient x'd 32,7 29,5 27,4 24,4 40,2 34,3 33,5 32,0 30,0Direct axis subtransient x"d 14,6 13,2 12,3 10,9 18,0 15,4 15,0 14,3 13,4Quadrature axis subtransient x"q 17,3 15,6 14,5 12,9 21,2 18,2 17,7 16,9 15,9Negative sequence x2 16,0 14,4 13,4 11,9 19,6 16,8 16,4 15,6 14,6Zero sequence x0 3,7 3,3 3,1 2,7 4,5 3,8 3,8 3,6 3,4

TIME CONSTANTS [s]Open circuit (T'do) 1,6 Subtransient (T''d) 0,014Transient (T'd) 0,145 Armature (Ta) 0,018

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6319 2RS C3 / PrelubricatedN-end bearing/Lubrication 6315 2RS C3 / PrelubricatedWeight (IM B34) [kg] 1060Inertia (J) (IM B34) [kgm2] 4,80Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,83 / 1,0Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star seriesOverloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

50 Hz-1500 min-1 / 60 Hz-1800 min-1

AMBIENT TEMPERATURE WINDING DATA

- SAE / IM B34

4 POLES

50

10,0

>= 300%+/- 0,5 %

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

V

SIN.DT.020.5 79

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.020.5 80

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.020.5 81

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

0

10

20

30

40

50

0 200 400 600 800 1000 1200

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.020.5 82

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MB 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 450 450 450 430 460 480 520 540 550kW 360 360 360 344 368 384 416 432 4404/4 93,9 94,0 94,1 94,3 94,1 94,4 94,5 94,7 94,8

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,6 94,6 94,7 94,7 94,5 94,8 94,9 95,0 95,02/4 94,9 94,7 94,8 94,7 94,6 94,8 94,9 95,0 94,94/4 95,2 95,3 95,3 95,5 95,3 95,6 95,7 95,8 95,9

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,7 95,7 95,8 95,8 95,7 95,9 96,0 96,0 96,12/4 96,0 95,8 95,9 95,8 95,7 95,9 96,0 96,1 96,0

SHORT CIRCUIT RATIO 0,36 0,40 0,43 0,51 0,29 0,34 0,35 0,37 0,39REACTANCES (%)Direct axis synchronous xd 345 310 290 245 420 365 355 340 315Quadrature axis synchronous xq 175 160 150 125 215 190 185 175 165Direct axis transient x'd 29,9 27,0 25,1 21,3 36,7 32,0 30,9 29,4 27,5Direct axis subtransient x"d 13,3 12,0 11,1 9,5 16,3 14,2 13,8 13,1 12,2Quadrature axis subtransient x"q 15,7 14,2 13,2 11,2 19,3 16,8 16,3 15,5 14,5Negative sequence x2 14,5 13,1 12,2 10,3 17,8 15,5 15,0 14,3 13,3Zero sequence x0 3,3 3,0 2,8 2,4 4,1 3,6 3,4 3,3 3,1

TIME CONSTANTS [s]Open circuit (T'do) 1,65 Subtransient (T''d) 0,014Transient (T'd) 0,145 Armature (Ta) 0,018

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6319 2RS C3 / PrelubricatedN-end bearing/Lubrication 6315 2RS C3 / PrelubricatedWeight (IM B34) [kg] 1200Inertia (J) (IM B34) [kgm2] 5,68Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,83 / 1,0Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star seriesOverloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

7,2

>= 300%+/- 0,5 %

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

V

- SAE / IM B34

4 POLES

50

50 Hz-1500 min-1 / 60 Hz-1800 min-1

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

SIN.DT.021.5 83

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.021.5 84

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.021.5 85

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

0

10

20

30

40

50

0 200 400 600 800 1000 1200

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.021.5 86

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 490 510 510 510 510 540 570 610 625kW 392 408 408 408 408 432 456 488 5004/4 93,5 94,0 94,1 94,2 93,0 93,4 93,7 94,0 94,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,4 94,6 94,7 94,7 93,9 94,0 94,4 94,6 94,92/4 94,9 94,9 94,9 94,9 94,3 94,4 94,7 94,9 95,14/4 94,8 95,3 95,3 95,4 94,5 94,7 95,0 95,3 95,7

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,6 95,7 95,8 95,8 95,2 95,3 95,6 95,7 96,02/4 96,0 96,0 96,0 96,0 95,5 95,6 95,8 96,0 96,1

SHORT CIRCUIT RATIO 0,33 0,35 0,38 0,42 0,26 0,30 0,32 0,32 0,34REACTANCES (%)Direct axis synchronous xd 350 330 305 275 440 390 365 360 335Quadrature axis synchronous xq 200 190 175 155 255 225 210 205 195Direct axis transient x'd 28,7 27,0 25,1 22,3 35,9 31,7 29,9 29,3 27,6Direct axis subtransient x"d 16,4 15,4 14,3 12,7 20,5 18,1 17,1 16,7 15,7Quadrature axis subtransient x"q 18,6 17,5 16,3 14,5 23,3 20,6 19,4 19,0 17,9Negative sequence x2 17,5 16,4 15,2 13,6 21,8 19,3 18,2 17,8 16,7Zero sequence x0 4,4 4,1 3,8 3,4 5,5 4,8 4,5 4,4 4,2

TIME CONSTANTS [s]Open circuit (T'do) 1,65 Subtransient (T''d) 0,015Transient (T'd) 0,135 Armature (Ta) 0,021

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6322 2RS C3 / PrelubricatedN-end bearing/Lubrication 6317 2RS C3 / PrelubricatedWeight (IM B34) [kg] 1250Inertia (J) (IM B34) [kgm2] 7,97Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,93 / 1,12Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C - Star seriesOverloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

INSULATION CLASS Number of leads POWER FACTOR Winding pitch

AMBIENT TEMPERATURE WINDING DATA TEMPERATURE RISE Winding code

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SA 44 POLES

50 Hz-1500 min-1 / 60 Hz-1800 min-1

8,6

V

- SAE / IM B34

50

>= 300%+/- 0,5 %

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

SIN.DT.022.5 87

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.022.5 88

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.022.5 89

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 200 400 600 800 1000 1200 1400

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400 1600

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V460 V480 V

SIN.DT.022.5 90

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SB 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 570 570 570 570 600 645 665 685 695kW 456 456 456 456 480 516 532 548 5564/4 94,2 94,6 94,7 94,8 93,9 94,4 94,7 94,9 95,1

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,1 95,1 95,2 95,2 94,6 94,9 95,1 95,3 95,42/4 95,4 95,3 95,3 95,3 94,9 95,1 95,4 95,4 95,54/4 95,4 95,7 95,8 95,9 95,2 95,6 95,8 96,0 96,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,1 96,1 96,2 96,2 95,7 96,0 96,1 96,3 96,42/4 96,3 96,3 96,3 96,3 96,0 96,1 96,3 96,4 96,5

SHORT CIRCUIT RATIO 0,32 0,35 0,38 0,42 0,25 0,28 0,30 0,32 0,34REACTANCES (%)Direct axis synchronous xd 320 290 270 240 405 365 335 315 295Quadrature axis synchronous xq 175 160 150 130 225 200 185 175 165Direct axis transient x'd 26,6 24,0 22,3 19,8 33,6 30,1 27,8 26,2 24,4Direct axis subtransient x"d 13,5 12,2 11,3 10,1 17,1 15,3 14,1 13,3 12,4Quadrature axis subtransient x"q 16,1 14,5 13,5 12,0 20,3 18,2 16,8 15,8 14,7Negative sequence x2 14,8 13,4 12,4 11,1 18,8 16,8 15,5 14,6 13,6Zero sequence x0 3,9 3,5 3,3 2,9 4,9 4,4 4,0 3,8 3,6

TIME CONSTANTS [s]Open circuit (T'do) 1,95 Subtransient (T''d) 0,016Transient (T'd) 0,16 Armature (Ta) 0,022

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6322 2RS C3 / PrelubricatedN-end bearing/Lubrication 6317 2RS C3 / PrelubricatedWeight (IM B34) [kg] 1550Inertia (J) (IM B34) [kgm2] 9,29Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,93 / 1,12Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star seriesOverloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

INSULATION CLASS

RATING

POWER FACTOR Winding pitch

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding code

V

- SAE / IM B34

6,0

>= 300%+/- 0,5 %

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES

50

50 Hz-1500 min-1 / 60 Hz-1800 min-1

Number of leads

SIN.DT.023.5 91

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effi

cien

cy [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.023.5 92

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.023.5 93

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400 1600 1800

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V460 V480 V

0

10

20

30

40

50

0 200 400 600 800 1000 1200 1400 1600

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.023.5 94

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MA 4

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 400 415 440 380 416 440 460 480

Star parallel 190 200 208 220 190 208 220 230 240kVA 680 680 680 680 700 740 775 805 825kW 544 544 544 544 560 592 620 644 6604/4 94,4 94,7 94,8 94,8 94,3 94,6 94,9 95,0 95,1

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,2 95,3 95,3 95,2 94,8 95,1 95,3 95,4 95,42/4 95,5 95,4 95,4 95,4 95,0 95,2 95,4 95,5 95,54/4 95,6 95,8 95,9 95,9 95,5 95,7 96,0 96,1 96,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,2 96,3 96,3 96,2 95,9 96,1 96,3 96,3 96,42/4 96,4 96,4 96,4 96,3 96,1 96,2 96,4 96,4 96,4

SHORT CIRCUIT RATIO 0,32 0,35 0,38 0,42 0,26 0,29 0,31 0,33 0,35REACTANCES (%)Direct axis synchronous xd 320 290 270 240 395 350 330 310 295Quadrature axis synchronous xq 175 160 150 130 220 195 180 170 160Direct axis transient x'd 26,6 24,0 22,3 19,8 32,8 29,0 27,1 25,8 24,3Direct axis subtransient x"d 13,5 12,2 11,3 10,1 16,7 14,7 13,8 13,1 12,3Quadrature axis subtransient x"q 16,1 14,5 13,5 12,0 19,8 17,5 16,4 15,6 14,7Negative sequence x2 14,8 13,4 12,4 11,1 18,3 16,2 15,1 14,4 13,5Zero sequence x0 3,9 3,5 3,3 2,9 4,8 4,2 4,0 3,8 3,5

TIME CONSTANTS [s]Open circuit (T'do) 1,95 Subtransient (T''d) 0,016Transient (T'd) 0,16 Armature (Ta) 0,022

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6322 2RS C3 / PrelubricatedN-end bearing/Lubrication 6317 2RS C3 / PrelubricatedWeight (IM B34) [kg] 1800Inertia (J) (IM B34) [kgm2] 11,69Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,93 / 1,12Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star seriesOverloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 300%+/- 0,5 %

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES

50

50 Hz-1500 min-1 / 60 Hz-1800 min-1

Number of leads

V

- SAE / IM B34

4,0

Winding pitch

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS

RATING

POWER FACTOR

SIN.DT.024.5 95

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.024.5 96

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.024.5 97

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V460 V480 V

0

10

20

30

40

50

0 200 400 600 800 1000 1200 1400 1600 1800

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V440 V

SIN.DT.024.5 98

CONTINUOUS DUTY

40°CH 17H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star V 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 800 800 800 880 920 950 960kW 640 640 640 704 736 760 7684/4 94,9 95,0 95,1 95,2 95,2 95,2 95,3

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,4 95,5 95,6 95,5 95,6 95,6 95,72/4 95,7 95,6 95,6 95,6 95,7 95,8 95,84/4 96,0 96,1 96,1 96,2 96,2 96,2 96,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,4 96,4 96,5 96,4 96,5 96,6 96,62/4 96,6 96,6 96,6 96,5 96,6 96,7 96,7

SHORT CIRCUIT RATIO 0,38 0,42 0,45 0,34 0,37 0,39 0,42REACTANCES (%)Direct axis synchronous xd 285 255 240 310 290 275 255Quadrature axis synchronous xq 155 140 130 170 155 150 140Direct axis transient x'd 23,0 20,8 19,3 25,4 23,7 22,4 20,8Direct axis subtransient x"d 11,0 9,9 9,2 12,1 11,3 10,7 9,9Quadrature axis subtransient x"q 13,6 12,3 11,4 15,0 14,0 13,3 12,3Negative sequence x2 12,3 11,1 10,3 13,5 12,7 12,0 11,1Zero sequence x0 3,1 2,8 2,6 3,4 3,2 3,0 2,8

TIME CONSTANTS [s]Open circuit (T'do) 2,2 Subtransient (T''d) 0,016Transient (T'd) 0,18 Armature (Ta) 0,026

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6322 C3 / With grease nippleN-end bearing/Lubrication 6317 2Z C3 / PrelubricatedWeight (IM B34) [kg] 2050Inertia (J) (IM B34) [kgm2] 13,12Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 0,93 / 1,12Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance mΩ @ 20 °C - Star series 3,1Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF <2%Total harmonic content <2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

Winding pitch

AMBIENT TEMPERATURETEMPERATURE RISEINSULATION CLASS

POWER FACTOR Number of leads

4 POLES50 Hz-1500 min-1 / 60 Hz-1800 min-1

+/- 0,5%

EN 55011

>= 300%

WINDING DATAWinding code

MJB 355 MB 4

6050

RATING

THREE-PHASE SYNCHRONOUS GENERATOR

SIN.DT.025.7 99

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MB 4

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.025.7 100

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MB 4

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.025.7 101

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MB 4

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.025.7 102

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 4

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 930 930 930 1070 1120 1120 1175kW 744 744 744 856 896 896 9404/4 94,9 95,2 95,2 95,0 95,3 95,5 95,7

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,3 95,5 95,4 95,3 95,5 95,7 95,92/4 95,4 95,6 95,4 95,4 95,6 95,7 95,84/4 96,0 96,2 96,2 96,1 96,3 96,4 96,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,3 96,4 96,4 96,3 96,5 96,6 96,72/4 96,4 96,5 96,4 96,4 96,5 96,6 96,7

SHORT CIRCUIT RATIO 0,40 0,44 0,47 0,34 0,37 0,40 0,45REACTANCES (%)Direct axis synchronous xd 300 270 250 345 320 295 265Quadrature axis synchronous xq 165 150 140 190 180 165 145Direct axis transient x'd 28,4 25,6 23,8 32,7 30,6 28,0 25,0Direct axis subtransient x"d 13,3 12,0 11,1 15,3 14,3 13,1 11,7Quadrature axis subtransient x"q 14,0 12,6 11,7 16,1 15,0 13,8 12,3Negative sequence x2 13,6 12,3 11,4 15,7 14,7 13,4 12,0Zero sequence x0 3,3 3,0 2,8 3,8 3,6 3,3 2,9

TIME CONSTANTS [s]Open circuit (T'do) 2,21 Subtransient (T''d) 0,018Transient (T'd) 0,18 Armature (Ta) 0,025

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2100Inertia (J) (IM B34) [kgm2] 16,3Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,30 / 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 2,2Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

INSULATION CLASS Number of leads

V

4 POLES

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding code

EN 55011

POWER FACTOR Winding pitch

>= 300%+/- 0,5%

6050

RATING

SIN.DT.026.4 103

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.026.4 104

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.026.4 105

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

SIN.DT.026.4 106

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 44 POLES

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1020 1050 1050 1200 1250 1250 1320kW 816 840 840 960 1000 1000 10564/4 95,1 95,3 95,4 95,3 95,5 95,6 95,7

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,5 95,5 95,5 95,6 95,7 95,8 95,92/4 95,6 95,6 95,6 95,7 95,7 95,8 95,94/4 96,2 96,3 96,3 96,3 96,4 96,5 96,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,5 96,5 96,5 96,5 96,6 96,7 96,82/4 96,6 96,5 96,5 96,6 96,6 96,7 96,8

SHORT CIRCUIT RATIO 0,40 0,43 0,46 0,34 0,36 0,40 0,44REACTANCES (%)Direct axis synchronous xd 300 280 260 355 330 300 275Quadrature axis synchronous xq 165 155 145 195 185 165 150Direct axis transient x'd 26,4 24,5 22,8 31,1 28,9 26,5 23,8Direct axis subtransient x"d 12,7 11,8 11,0 15,0 13,9 12,7 11,5Quadrature axis subtransient x"q 13,5 12,5 11,6 15,8 14,8 13,5 12,2Negative sequence x2 13,0 12,1 11,2 15,3 14,3 13,1 11,8Zero sequence x0 3,0 2,8 2,6 3,6 3,3 3,0 2,7

TIME CONSTANTS [s]Open circuit (T'do) 2,40 Subtransient (T''d) 0,018Transient (T'd) 0,18 Armature (Ta) 0,025

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2300Inertia (J) (IM B34) [kgm2] 17,0Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,30 / 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 2,4Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 300%+/- 0,5%

EN 55011

INSULATION CLASS Number of leads POWER FACTOR Winding pitch

RATING

V

6050

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding code

SIN.DT.027.4 107

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p,f.

1,0 p.f.

0,8 p,f.

1,0 p.f.

0,8 p,f.

SIN.DT.027.4 108

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p,f.

1,0 p.f.

0,8 p,f.

1,0 p.f.

0,8 p,f.

1,0 p.f.

0,8 p,f.

SIN.DT.027.4 109

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.027.4 110

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 44 POLES

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1150 1150 1150 1320 1370 1400 1420kW 920 920 920 1056 1096 1120 11364/4 95,5 95,6 95,7 95,6 95,8 95,9 96,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,8 95,8 95,8 95,9 96,0 96,2 96,22/4 95,9 95,8 95,8 96,0 96,1 96,2 96,24/4 96,4 96,5 96,6 96,5 96,7 96,7 96,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,7 96,7 96,7 96,7 96,8 97,0 97,02/4 96,8 96,7 96,7 96,8 96,9 97,0 97,0

SHORT CIRCUIT RATIO 0,45 0,50 0,54 0,39 0,42 0,45 0,52REACTANCES (%)Direct axis synchronous xd 275 250 230 320 295 275 240Quadrature axis synchronous xq 155 140 130 180 165 155 135Direct axis transient x'd 24,4 22,0 20,4 28,0 26,0 24,3 21,0Direct axis subtransient x"d 11,4 10,3 9,6 13,1 12,2 11,4 9,8Quadrature axis subtransient x"q 12,7 11,5 10,7 14,6 13,6 12,7 11,0Negative sequence x2 12,1 10,9 10,1 13,9 12,9 12,0 10,4Zero sequence x0 2,8 2,5 2,3 3,2 3,0 2,8 2,4

TIME CONSTANTS [s]Open circuit (T'do) 2,60 Subtransient (T''d) 0,018Transient (T'd) 0,20 Armature (Ta) 0,027

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2550Inertia (J) (IM B34) [kgm2] 19,3Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,30 / 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 1,8Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

RATING

V

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding code

>= 300%+/- 0,5%

EN 55011

6050

INSULATION CLASS Number of leads POWER FACTOR Winding pitch

SIN.DT.028.4 111

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

MarelliMotori reserves the right to change the data in order to update or improve its products without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.028.4 112

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.028.4 113

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.028.4 114

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 44 POLES

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1300 1300 1300 1450 1520 1560 1625kW 1040 1040 1040 1160 1216 1248 13004/4 95,6 95,8 95,9 95,8 96,0 96,2 96,3

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,0 96,0 96,0 96,1 96,3 96,4 96,52/4 96,1 96,0 96,0 96,2 96,4 96,5 96,54/4 96,5 96,7 96,8 96,7 96,8 97,0 97,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,8 96,8 96,8 96,9 97,1 97,2 97,22/4 96,9 96,9 96,9 97,0 97,2 97,2 97,2

SHORT CIRCUIT RATIO 0,45 0,50 0,54 0,40 0,43 0,46 0,52REACTANCES (%)Direct axis synchronous xd 265 240 225 295 280 260 230Quadrature axis synchronous xq 155 140 130 175 160 150 135Direct axis transient x'd 22,7 20,5 19,0 25,4 23,8 22,3 19,8Direct axis subtransient x"d 10,2 9,2 8,5 11,4 10,7 10,0 8,9Quadrature axis subtransient x"q 11,3 10,2 9,5 12,6 11,8 11,1 9,9Negative sequence x2 10,8 9,7 9,0 12,0 11,3 10,6 9,4Zero sequence x0 2,8 2,5 2,3 3,1 2,9 2,7 2,4

TIME CONSTANTS [s]Open circuit (T'do) 2,70 Subtransient (T''d) 0,018Transient (T'd) 0,21 Armature (Ta) 0,027

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2800Inertia (J) (IM B34) [kgm2] 22,5Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,30 / 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 1,4Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 300%+/- 0,5%

EN 55011

Winding pitch

6050

RATING

V

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

SIN.DT.029.4 115

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.029.4 116

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.029.4 117

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000 4500

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

0 500 1000 1500 2000 2500 3000 3500 4000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.029.4 118

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SA 44 POLES

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1600 1600 1600 1845 1900 1925 1950kW 1280 1280 1280 1476 1520 1540 15604/4 95,1 95,8 95,9 95,9 96,1 96,2 96,3

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,0 96,1 96,2 95,8 96,0 96,1 96,22/4 95,9 96,0 96,1 95,4 95,6 95,7 95,84/4 96,6 96,7 96,8 96,8 96,9 97,0 97,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,9 96,9 97,0 96,7 96,8 96,9 97,02/4 96,8 96,8 96,9 96,4 96,5 96,6 96,7

SHORT CIRCUIT RATIO 0,32 0,35 0,38 0,27 0,30 0,32 0,37REACTANCES (%)Direct axis synchronous xd 360 325 300 415 385 355 305Quadrature axis synchronous xq 205 185 170 235 220 200 175Direct axis transient x'd 34,3 31,0 28,8 39,7 36,5 33,8 29,2Direct axis subtransient x"d 17,2 15,5 14,4 19,8 18,3 16,9 14,6Quadrature axis subtransient x"q 19,1 17,2 16,0 22,0 20,3 18,8 16,2Negative sequence x2 18,2 16,4 15,2 21,0 19,3 17,9 15,5Zero sequence x0 4,0 3,6 3,3 4,6 4,2 3,9 3,4

TIME CONSTANTS [s]Open circuit (T'do) 3,10 Subtransient (T''d) 0,018Transient (T'd) 0,3 Armature (Ta) 0,034

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 3100Inertia (J) (IM B34) [kgm2] 37,5Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 2,6 / 3,1Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 1,1Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 5% (under no-load or non-distorting-load

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

EN 55011

INSULATION CLASS Number of leads POWER FACTOR Winding pitch

RATING

V

60

TEMPERATURE RISE Winding code

>= 250%+/- 0,5%

AMBIENT TEMPERATURE WINDING DATA

50

SIN.DT.030.3 119

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.030.3 120

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

94

96

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.030.3 121

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 1000 2000 3000 4000 5000 6000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000 4500

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.030.3 122

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SC 44 POLES

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1875 1875 1875 2085 2150 2200 2250kW 1500 1500 1500 1668 1720 1760 18004/4 96,1 96,1 96,2 96,1 96,3 96,4 96,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,4 96,4 96,5 96,1 96,3 96,4 96,52/4 96,2 96,2 96,3 95,7 95,9 96,0 96,14/4 96,9 96,9 97,0 96,9 97,1 97,2 97,2

EFFICIENCY (%) @ 1,0 p.f. 3/4 97,2 97,2 97,2 96,9 97,1 97,2 97,22/4 97,0 97,0 97,1 96,6 96,8 96,9 96,9

SHORT CIRCUIT RATIO 0,33 0,37 0,40 0,30 0,33 0,35 0,40REACTANCES (%)Direct axis synchronous xd 330 300 280 370 340 320 280Quadrature axis synchronous xq 190 170 160 210 195 180 160Direct axis transient x'd 29,9 27,0 25,1 33,3 30,7 28,7 25,1Direct axis subtransient x"d 13,9 12,5 11,6 15,4 14,2 13,3 11,6Quadrature axis subtransient x"q 15,6 14,1 13,1 17,4 16,0 15,0 13,1Negative sequence x2 14,7 13,3 12,4 16,4 15,1 14,2 12,4Zero sequence x0 3,3 3,0 2,8 3,7 3,4 3,2 2,8

TIME CONSTANTS [s]Open circuit (T'do) 3,30 Subtransient (T''d) 0,018Transient (T'd) 0,3 Armature (Ta) 0,037

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 3700Inertia (J) (IM B34) [kgm2] 46,7Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 2,6 / 3,1Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 0,85Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 5% (under no-load or non-distorting-load

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 250%+/- 0,5%

EN 55011

INSULATION CLASS Number of leads POWER FACTOR Winding pitch

RATING

V

6050

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding code

SIN.DT.031.4 123

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SC 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.031.4 124

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SC 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.031.4 125

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SC 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 1000 2000 3000 4000 5000 6000 7000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.031.4 126

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 MB 44 POLES

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 2150 2150 2150 2380 2450 2500 2575kW 1720 1720 1720 1904 1960 2000 20604/4 96,2 96,2 96,2 96,3 96,4 96,5 96,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,5 96,5 96,5 96,3 96,4 96,5 96,52/4 96,3 96,3 96,3 95,9 96,0 96,1 96,14/4 97,0 97,0 97,0 97,1 97,2 97,2 97,2

EFFICIENCY (%) @ 1,0 p.f. 3/4 97,2 97,2 97,2 97,1 97,2 97,2 97,22/4 97,1 97,1 97,1 96,8 96,8 96,9 96,9

SHORT CIRCUIT RATIO 0,32 0,36 0,39 0,29 0,32 0,34 0,39REACTANCES (%)Direct axis synchronous xd 340 305 285 375 345 320 285Quadrature axis synchronous xq 195 175 165 215 200 185 160Direct axis transient x'd 33,2 30,0 27,9 36,8 33,9 31,7 27,8Direct axis subtransient x"d 16,6 15,0 13,9 18,4 17,0 15,8 13,9Quadrature axis subtransient x"q 18,6 16,8 15,6 20,6 19,0 17,7 15,6Negative sequence x2 17,5 15,8 14,7 19,4 17,9 16,7 14,7Zero sequence x0 3,9 3,5 3,3 4,3 4,0 3,7 3,2

TIME CONSTANTS [s]Open circuit (T'do) 3,60 Subtransient (T''d) 0,018Transient (T'd) 0,35 Armature (Ta) 0,043

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 4400Inertia (J) (IM B34) [kgm2] 52,5Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 2,6 / 3,1Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 0,75Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 5% (under no-load or non-distorting-load

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

EN 55011

6050

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR Winding pitch

>= 250%+/- 0,5%

RATING

V

AMBIENT TEMPERATURE WINDING DATA

SIN.DT.032.3 127

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 MB 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.032.3 128

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.032.3 129

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 1000 2000 3000 4000 5000 6000 7000 8000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.032.3 130

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 LA 44 POLES

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 2500 2500 2500 2810 2900 3000 3000kW 2000 2000 2000 2248 2320 2400 24004/4 96,0 96,4 96,5 96,5 96,6 96,6 96,7

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,7 96,7 96,8 96,4 96,5 96,5 96,62/4 96,5 96,5 96,6 96,2 96,3 96,3 96,44/4 97,2 97,2 97,2 97,2 97,3 97,3 97,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 97,4 97,4 97,5 97,2 97,2 97,2 97,32/4 97,2 97,2 97,3 97,0 97,1 97,1 97,2

SHORT CIRCUIT RATIO 0,38 0,42 0,45 0,34 0,37 0,39 0,45REACTANCES (%)Direct axis synchronous xd 330 300 280 375 345 325 280Quadrature axis synchronous xq 190 170 160 210 195 185 160Direct axis transient x'd 30,5 27,5 25,5 34,3 31,6 29,9 25,5Direct axis subtransient x"d 14,0 12,6 11,7 15,7 14,5 13,7 11,7Quadrature axis subtransient x"q 15,7 14,2 13,2 17,7 16,3 15,5 13,2Negative sequence x2 14,8 13,4 12,4 16,7 15,4 14,6 12,4Zero sequence x0 3,8 3,4 3,2 4,2 3,9 3,7 3,2

TIME CONSTANTS [s]Open circuit (T'do) 3,70 Subtransient (T''d) 0,018Transient (T'd) 0,34 Armature (Ta) 0,048

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 5100Inertia (J) (IM B34) [kgm2] 61,5Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 2,6 / 3,1Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 0,50Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 5% (under no-load or non-distorting-load

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding code

>= 300%+/- 0,5%

EN 55011

INSULATION CLASS Number of leadsPOWER FACTOR Winding pitch

RATING

V

60

SIN.DT.033.3 131

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 LA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.033.3 132

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 LA 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.033.3 133

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 LA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 1000 2000 3000 4000 5000 6000 7000 8000 9000

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000 7000

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.033.3 134

CONTINUOUS DUTY

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star V 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 2500 2600 2600 2700 2850 2990 2990kW 2000 2080 2080 2160 2280 2392 23924/4 96,3 96,4 96,4 96,2 96,3 96,4 96,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,4 96,4 96,4 96,2 96,3 96,4 96,42/4 96,4 96,4 96,3 96,0 96,1 96,2 96,24/4 97,1 97,2 97,2 97,0 97,1 97,2 97,2

EFFICIENCY (%) @ 1,0 p.f. 3/4 97,2 97,2 97,2 97,0 97,1 97,2 97,22/4 97,1 97,1 97,1 96,8 96,9 97,0 97,0

SHORT CIRCUIT RATIO 0,37 0,39 0,42 0,34 0,36 0,37 0,41REACTANCES (%)Direct axis synchronous xd 300 280 260 325 305 290 270Quadrature axis synchronous xq 170 160 150 185 175 165 155Direct axis transient x'd 28,8 27,0 25,1 31,1 29,4 28,2 25,9Direct axis subtransient x"d 13,2 12,4 11,5 14,3 13,5 12,9 11,9Quadrature axis subtransient x"q 13,9 13,0 12,1 15,0 14,1 13,6 12,5Negative sequence x2 13,4 12,6 11,7 14,5 13,7 13,1 12,1Zero sequence x0 4,2 3,9 3,6 4,5 4,2 4,1 3,7

TIME CONSTANTS [s]Open circuit (T'do) 5,9 Subtransient (T''d) 0,025Transient (T'd) 0,57 Armature (Ta) 0,052

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6332 C3 / With grease nippleN-end bearing/Lubrication 6330 C3 / With grease nippleWeight (IM B34) [kg] 5000Inertia (J) (IM B34) [kgm2] 83Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 3,0 / 3,4Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 0,46Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 5% (under no-load or non-distorting-load

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

INSULATION CLASSPOWER FACTOR

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding code

MJB 560 MA 4THREE-PHASE SYNCHRONOUS GENERATOR

4 POLES50 Hz-1500 min-1 / 60 Hz-1800 min-1

>= 250%+/- 0,5%

EN 55011

RATING

50 60

Number of leads Winding pitch

SIN.DT.037.1 135

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

MJB 560 MA 4THREE-PHASE SYNCHRONOUS GENERATOR

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.037.1 136

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 560 MA 4

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.037.1 137

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 560 MA 4

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000 7000 8000

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000 7000

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.037.1 138

CONTINUOUS DUTY

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star V 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 3000 3100 3100 3220 3400 3565 3565kW 2400 2480 2480 2576 2720 2852 28524/4 96,4 96,5 96,5 96,4 96,4 96,5 96,6

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,5 96,6 96,6 96,4 96,5 96,5 96,62/4 96,5 96,5 96,5 96,3 96,3 96,4 96,44/4 97,2 97,2 97,2 97,2 97,2 97,2 97,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 97,3 97,3 97,3 97,2 97,2 97,3 97,32/4 97,2 97,3 97,2 97,1 97,1 97,2 97,2

SHORT CIRCUIT RATIO 0,36 0,39 0,42 0,34 0,36 0,37 0,41REACTANCES (%)Direct axis synchronous xd 310 290 270 335 315 305 280Quadrature axis synchronous xq 170 160 150 185 175 165 155Direct axis transient x'd 30,0 28,0 26,0 32,3 30,5 29,2 26,8Direct axis subtransient x"d 15,4 14,4 13,4 16,6 15,7 15,0 13,8Quadrature axis subtransient x"q 16,3 15,2 14,1 17,5 16,5 15,9 14,6Negative sequence x2 15,9 14,8 13,7 17,1 16,1 15,4 14,2Zero sequence x0 6,4 6,0 5,6 6,9 6,5 6,3 5,8

TIME CONSTANTS [s]Open circuit (T'do) 5,9 Subtransient (T''d) 0,025Transient (T'd) 0,58 Armature (Ta) 0,052

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6332 C3 / With grease nippleN-end bearing/Lubrication 6330 C3 / With grease nippleWeight (IM B34) [kg] 5700Inertia (J) (IM B34) [kgm2] 95Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 3,0 / 3,4Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 0,37Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 5% (under no-load or non-distorting-load

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

RATING

MJB 560 LA 4

50 60

THREE-PHASE SYNCHRONOUS GENERATOR

4 POLES50 Hz-1500 min-1 / 60 Hz-1800 min-1

>= 250%+/- 0,5%

EN 55011

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR Winding pitch

SIN.DT.038.1 139

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 560 LA 4

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.038.1 140

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 560 LA 4

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.038.1 141

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 560 LA 4

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000 7000 8000 9000

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000 7000 8000

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.038.1 142

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 SA 44 POLES

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 3000 3000 3000 3270 3450 3450 3450kW 2400 2400 2400 2616 2760 2760 27604/4 96,0 96,2 96,1 96,1 96,3 96,4 96,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,1 96,3 96,2 96,2 96,4 96,5 96,62/4 95,9 96,1 96,0 95,9 96,1 96,2 96,34/4 96,8 97,0 96,9 96,9 97,1 97,2 97,2

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,9 97,1 97,0 97,0 97,2 97,2 97,32/4 96,8 96,9 96,8 96,8 96,9 97,0 97,1

SHORT CIRCUIT RATIO 0,36 0,40 0,43 0,33 0,35 0,38 0,42REACTANCES (%)Direct axis synchronous xd 360 325 300 395 370 340 310Quadrature axis synchronous xq 205 185 170 225 210 195 175Direct axis transient x'd 36,6 33,0 30,7 39,9 37,6 34,4 31,6Direct axis subtransient x"d 16,6 15,0 13,9 18,1 17,1 15,7 14,4Quadrature axis subtransient x"q 18,8 17,0 15,8 20,6 19,4 17,7 16,3Negative sequence x2 17,7 16,0 14,9 19,3 18,2 16,7 15,3Zero sequence x0 6,1 5,5 5,1 6,7 6,3 5,7 5,3

TIME CONSTANTS [s]Open circuit (T'do) 4,70 Subtransient (T''d) 0,018Transient (T'd) 0,49 Armature (Ta) 0,045

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 M C3 / With grease nippleN-end bearing/Lubrication 6324 M C3 / With grease nippleWeight (IM B34) [kg] 6350Inertia (J) (IM B34) [kgm2] 117Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 3,8 / 4,3Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 0,25Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 5% (under no-load or non-distorting-load

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

AMBIENT TEMPERATURE WINDING DATA

>= 250%+/- 0,5%

RATING

V

6050

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR Winding pitch

EN 55011

SIN.DT.034.3 143

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 SA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.034.3 144

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.034.3 145

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 1000 2000 3000 4000 5000 6000 7000 8000 9000

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000 7000 8000

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.034.3 146

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 MA 44 POLES

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 3250 3250 3250 3545 3735 3735 3735kW 2600 2600 2600 2836 2988 2988 29884/4 96,2 96,4 96,3 96,3 96,5 96,6 96,7

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,3 96,5 96,4 96,4 96,6 96,7 96,82/4 96,1 96,3 96,2 96,1 96,3 96,4 96,54/4 97,0 97,2 97,1 97,1 97,2 97,3 97,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 97,1 97,2 97,2 97,2 97,3 97,4 97,52/4 96,9 97,1 97,0 96,9 97,1 97,2 97,3

SHORT CIRCUIT RATIO 0,40 0,44 0,47 0,36 0,39 0,42 0,46REACTANCES (%)Direct axis synchronous xd 345 310 290 375 355 325 295Quadrature axis synchronous xq 200 180 165 220 205 190 170Direct axis transient x'd 35,5 32,0 29,7 38,7 36,5 33,4 30,6Direct axis subtransient x"d 17,7 16,0 14,9 19,4 18,2 16,7 15,3Quadrature axis subtransient x"q 19,9 18,0 16,7 21,8 20,5 18,8 17,2Negative sequence x2 17,7 16,0 14,9 19,4 18,2 16,7 15,3 Zero sequence x0 6,4 5,8 5,4 7,0 6,6 6,0 5,6

TIME CONSTANTS [s]Open circuit (T'do) 4,80 Subtransient (T''d) 0,018Transient (T'd) 0,48 Armature (Ta) 0,045

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 M C3 / With grease nippleN-end bearing/Lubrication 6324 M C3 / With grease nippleWeight (IM B34) [kg] 7000Inertia (J) (IM B34) [kgm2] 140Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 3,8 / 4,3Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 0,14Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 5% (under no-load or non-distorting-load

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

POWER FACTOR Winding pitch

6050

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding code

V

>= 250%+/- 0,5%

RATING

EN 55011

INSULATION CLASS Number of leads

SIN.DT.035.3 147

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 MA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.035.3 148

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.035.3 149

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000 7000 8000 9000

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.035.3 150

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 LA 44 POLES

CONTINUOUS DUTY 50 Hz-1500 min-1 / 60 Hz-1800 min-1

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 3550 3550 3550 3870 4080 4080 4080kW 2840 2840 2840 3096 3264 3264 32644/4 96,3 96,5 96,4 96,4 96,6 96,7 96,8

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,4 96,6 96,5 96,5 96,7 96,8 96,92/4 96,2 96,4 96,3 96,2 96,4 96,5 96,64/4 97,1 97,2 97,2 97,2 97,3 97,4 97,5

EFFICIENCY (%) @ 1,0 p.f. 3/4 97,2 97,3 97,2 97,2 97,4 97,5 97,62/4 97,0 97,2 97,1 97,0 97,2 97,2 97,3

SHORT CIRCUIT RATIO 0,38 0,42 0,45 0,35 0,37 0,40 0,44REACTANCES (%)Direct axis synchronous xd 355 320 295 385 365 335 305Quadrature axis synchronous xq 210 190 175 230 215 200 180Direct axis transient x'd 33,2 30,0 27,9 36,3 34,2 31,3 28,7Direct axis subtransient x"d 15,5 14,0 13,0 16,9 16,0 14,6 13,4Quadrature axis subtransient x"q 17,7 16,0 14,9 19,4 18,2 16,7 15,3Negative sequence x2 16,6 15,0 13,9 18,1 17,1 15,6 14,4 Zero sequence x0 5,9 5,3 4,9 6,4 6,0 5,5 5,1

TIME CONSTANTS [s]Open circuit (T'do) 4,80 Subtransient (T''d) 0,018Transient (T'd) 0,48 Armature (Ta) 0,045

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 M C3 / With grease nippleN-end bearing/Lubrication 6324 M C3 / With grease nippleWeight (IM B34) [kg] 7800Inertia (J) (IM B34) [kgm2] 158Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 3,8 / 4,3Degree of protection IP 23Type of construction available B2 - SAE / IM B34 (IM 2101) / IM B20 (IM 1101)Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 0,14Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition, speed

from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 5% (under no-load or non-distorting-load

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

POWER FACTOR Winding pitch

6050

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding code

V

>= 250%+/- 0,5%

RATING

EN 55011

INSULATION CLASS Number of leads

SIN.DT.036.0 151

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 LA 4

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.036.0 152

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 LA 4

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.036.0 153

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 630 LA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1500 min-1

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 2000 4000 6000 8000 10000 12000

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000 7000 8000 9000

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.036.0 154

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY HzVOLTAGE Star series V 380 400 415 440 416 440 460 480

Star parallel 190 200 208 220 208 220 230 240kVA 1000 1030 1030 980 1160 1220 1250 1300kW 800 824 824 784 928 976 1000 10404/4 95,1 95,2 95,3 95,4 95,1 95,4 95,4 95,4

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,5 95,6 95,6 95,6 95,5 95,6 95,7 95,72/4 95,6 95,7 95,7 95,7 95,6 95,6 95,8 95,84/4 96,1 96,2 96,3 96,4 96,1 96,4 96,4 96,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,5 96,5 96,5 96,5 96,4 96,5 96,6 96,62/4 96,6 96,6 96,6 96,6 96,5 96,5 96,7 96,7

SHORT CIRCUIT RATIO 0,41 0,44 0,47 0,56 0,35 0,37 0,40 0,42REACTANCES (%)Direct axis synchronous xd 295 275 255 215 345 325 305 290Quadrature axis synchronous xq 160 150 140 120 185 175 165 160Direct axis transient x'd 25,8 24,0 22,3 18,9 30,0 28,2 26,4 25,2Direct axis subtransient x"d 12,5 11,6 10,8 9,1 14,5 13,6 12,8 12,2Quadrature axis subtransient x"q 13,2 12,3 11,4 9,7 15,4 14,4 13,5 12,9Negative sequence x2 12,9 12,0 11,1 9,4 15,0 14,1 13,2 12,6Zero sequence x0 2,8 2,6 2,4 2,0 3,2 3,1 2,9 2,7

TIME CONSTANTS [s]Open circuit (T'do) 2,4 Subtransient (T''d) 0,018Transient (T'd) 0,18 Armature (Ta) 0,025

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2300Inertia (J) (IM B34) [kgm2] 17,0Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,30 / 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C - Star series 1,7Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2%

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

+/- 0,5%

EN 55011

(at no load)

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

50 60

Number of leads Winding pitch

WINDING DATA Winding code

RATING

4 POLES50 Hz-1500 min-1 / 60 Hz-1800 min-1

INSULATION CLASS POWER FACTOR

AMBIENT TEMPERATURE TEMPERATURE RISE

>= 300%

SIN.DT.261.3 155

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

MJB 400 MB 4THREE-PHASE SYNCHRONOUS GENERATOR

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

0 8 f

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.261.3 156

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.261.3 157

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

50 Hz - 1500 min-1

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.261.3 158

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY HzVOLTAGE Star series V 380 400 415 440 416 440 460 480

Star parallel 190 200 208 220 208 220 230 240kVA 1140 1140 1130 1050 1250 1310 1360 1380kW 912 912 904 840 1000 1048 1088 11044/4 95,4 95,6 95,6 95,6 95,5 95,7 95,9 95,9

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,8 95,8 95,9 95,8 95,8 96,0 96,1 96,12/4 95,9 95,9 95,9 95,8 95,9 96,0 96,2 96,24/4 96,3 96,5 96,5 96,5 96,4 96,6 96,7 96,7

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,7 96,7 96,8 96,7 96,7 96,8 96,9 96,92/4 96,8 96,8 96,8 96,7 96,7 96,8 97,0 97,0

SHORT CIRCUIT RATIO 0,45 0,50 0,54 0,66 0,41 0,44 0,46 0,50REACTANCES (%)Direct axis synchronous xd 275 250 230 190 305 285 270 250Quadrature axis synchronous xq 155 140 130 105 170 160 150 140Direct axis transient x'd 24,4 22,0 20,3 16,7 26,8 25,1 23,8 22,2Direct axis subtransient x"d 11,4 10,3 9,5 7,8 12,5 11,7 11,1 10,4Quadrature axis subtransient x"q 12,7 11,5 10,6 8,8 14,0 13,1 12,4 11,6Negative sequence x2 12,1 10,9 10,0 8,3 13,3 12,4 11,8 11,0Zero sequence x0 2,8 2,5 2,3 1,9 3,0 2,8 2,7 2,5

TIME CONSTANTS [s]Open circuit (T'do) 2,6 Subtransient (T''d) 0,018Transient (T'd) 0,20 Armature (Ta) 0,027

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2550Inertia (J) (IM B34) [kgm2] 19,3Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,30 / 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C - Star series 1,4Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2%

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

4 POLES50 Hz-1500 min-1 / 60 Hz-1800 min-1

RATING

AMBIENT TEMPERATURE TEMPERATURE RISE INSULATION CLASS

POWER FACTOR

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

50 60

WINDING DATA Winding code

Number of leads Winding pitch

>= 300%+/- 0,5%

EN 55011

(at no load)

SIN.DT.262.3 159

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

0 8 f

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.262.3 160

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

939495969798

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.262.3 161

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

50 Hz - 1500 min-1

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.262.3 162

CONTINUOUS DUTY

40°CH M0H 12

0,8 2/3

FREQUENCY HzVOLTAGE Star series V 380 400 415 440 416 440 460 480

Star parallel 190 200 208 220 208 220 230 240kVA 1160 1200 1200 1200 1300 1380 1420 1450kW 928 960 960 960 1040 1104 1136 11604/4 95,7 95,8 95,8 95,9 95,7 95,9 96,1 96,2

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,0 96,0 96,0 96,0 96,0 96,2 96,3 96,42/4 96,1 96,0 96,0 96,0 96,1 96,2 96,3 96,34/4 96,6 96,7 96,7 96,8 96,6 96,8 96,9 97,0

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,8 96,9 96,9 96,9 96,8 97,0 97,1 97,22/4 96,9 96,9 96,8 96,9 96,9 97,0 97,1 97,1

SHORT CIRCUIT RATIO 0,45 0,48 0,52 0,58 0,40 0,42 0,45 0,48REACTANCES (%)Direct axis synchronous xd 280 260 240 215 315 295 280 260Quadrature axis synchronous xq 155 145 135 120 175 165 155 145Direct axis transient x'd 24,6 23,0 21,4 19,0 27,6 26,2 24,7 23,2Direct axis subtransient x"d 11,5 10,7 9,9 8,8 12,9 12,2 11,5 10,8Quadrature axis subtransient x"q 12,9 12,0 11,1 9,9 14,4 13,7 12,9 12,1Negative sequence x2 12,1 11,3 10,5 9,3 13,6 12,9 12,1 11,4Zero sequence x0 2,8 2,6 2,4 2,1 3,1 3,0 2,8 2,6

TIME CONSTANTS [s]Open circuit (T'do) 2,7 Subtransient (T''d) 0,018Transient (T'd) 0,21 Armature (Ta) 0,027

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2800Inertia (J) (IM B34) [kgm2] 22,5Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,30 / 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C - Star series 1,4Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2%

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

AMBIENT TEMPERATURE TEMPERATURE RISE INSULATION CLASS

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

50 60

WINDING DATA Winding code

Number of leads

4 POLES50 Hz-1500 min-1 / 60 Hz-1800 min-1

EN 55011

(at no load)

POWER FACTOR Winding pitch

>= 300%+/- 0,5%

RATING

SIN.DT.263.3 163

Typical efficiency curves 50 Hz - 1500 min-1

380 V

400 V

415 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

0 8 f

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.263.3 164

Typical efficiency curves 60 Hz - 1800 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.263.3 165

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

50 Hz - 1500 min-1

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V440 V

SIN.DT.263.3 166

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 19,5 21,4 21,4kW 15,6 17,1 17,14/4 78,9 80,7 80,8

EFFICIENCY (%) @ 0,8 p.f. 3/4 81,5 82,9 83,22/4 83,1 83,5 84,34/4 82,7 84,2 84,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 85,0 86,1 86,42/4 86,3 86,7 87,3

SHORT CIRCUIT RATIO 0,40 0,44 0,49REACTANCES (%)Direct axis synchronous xd 285 260 230Quadrature axis synchronous xq 165 150 135Direct axis transient x'd 27,9 25,5 22,8Direct axis subtransient x"d 13,7 12,5 11,2Quadrature axis subtransient x"q 15,1 13,8 12,3Negative sequence x2 13,8 12,6 11,3Zero sequence x0 2,0 1,8 1,6

TIME CONSTANTS [s]Open circuit (T'do) 0,4 Subtransient (T''d) 0,008Transient (T'd) 0,035 Armature (Ta) 0,005

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6310 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 120Inertia (J) (IM B34) [kgm2] 0,109Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,14Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 1,13Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

AMBIENT TEMPERATURE WINDING DATA

RATING

V

POWER FACTOR Winding pitch

TEMPERATURE RISEINSULATION CLASS

4 POLES

speed from -2% to +5%, p.f. from 0,8 to 1)

>= 300%+/- 0,5%

- SAE / IM B34

Winding code

60 Hz-1800 min-1

Number of leads

SIN.DT.270.2 167

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

78

80

82

84

86

88

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

78

80

82

84

86

88

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

78

80

82

84

86

88

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p,f.

1,0 p.f.

0,8 p,f.

1,0 p.f.

0,8 p,f.

SIN.DT.270.2 168

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 10 20 30 40 50 60

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.270.2 169

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 23,5 24,7 24,7kW 18,8 19,8 19,84/4 84,8 86,1 86,9

EFFICIENCY (%) @ 0,8 p.f. 3/4 87,6 88,5 89,02/4 89,3 89,7 90,04/4 87,8 88,8 89,5

EFFICIENCY (%) @ 1,0 p.f. 3/4 90,0 90,8 91,22/4 91,5 91,8 92,0

SHORT CIRCUIT RATIO 0,42 0,48 0,54REACTANCES (%)Direct axis synchronous xd 270 235 210Quadrature axis synchronous xq 155 135 120Direct axis transient x'd 26,3 23,0 20,6Direct axis subtransient x"d 12,7 11,1 9,9Quadrature axis subtransient x"q 15,0 13,1 11,7Negative sequence x2 13,8 12,1 10,8Zero sequence x0 1,5 1,3 1,2

TIME CONSTANTS [s]Open circuit (T'do) 0,46 Subtransient (T''d) 0,008Transient (T'd) 0,035 Armature (Ta) 0,005

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6310 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 130Inertia (J) (IM B34) [kgm2] 0,124Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,14Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,75Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

4 POLES

>= 300%+/- 0,5%

speed from -2% to +5%, p.f. from 0,8 to 1)

60 Hz-1800 min-1

RATING

V

- SAE / IM B34

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

SIN.DT.271.2 170

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.271.2 171

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 10 20 30 40 50 60 70

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.271.2 172

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SC 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 31,2 32,5 32,5kW 25,0 26,0 26,04/4 85,9 86,5 87,1

EFFICIENCY (%) @ 0,8 p.f. 3/4 88,3 88,6 89,22/4 89,5 89,7 90,14/4 88,6 89,1 89,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 90,6 90,9 91,42/4 91,6 91,8 92,1

SHORT CIRCUIT RATIO 0,33 0,38 0,43REACTANCES (%)Direct axis synchronous xd 295 255 230Quadrature axis synchronous xq 165 145 130Direct axis transient x'd 27,6 24,0 21,5Direct axis subtransient x"d 12,7 11,0 9,8Quadrature axis subtransient x"q 15,2 13,2 11,8Negative sequence x2 13,9 12,1 10,8Zero sequence x0 2,6 2,3 2,1

TIME CONSTANTS [s]Open circuit (T'do) 0,35 Subtransient (T''d) 0,005Transient (T'd) 0,035 Armature (Ta) 0,004

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6310 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 140Inertia (J) (IM B34) [kgm2] 0,135Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,14Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,52Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz-1800 min-1

>= 300%+/- 0,5%

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

V

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR Winding pitch

- SAE / IM B34

4 POLES

SIN.DT.272.2 173

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SC 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.272.2 174

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 SC 4

Transient voltage variation [%]

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 10 20 30 40 50 60 70 80 90

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.272.2 175

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 33,7 34,7 34,7kW 27,0 27,8 27,84/4 87,1 88,1 88,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 89,2 89,6 89,72/4 90,0 90,2 90,44/4 89,6 90,5 90,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 91,3 91,6 91,82/4 92,0 92,1 92,4

SHORT CIRCUIT RATIO 0,34 0,40 0,45REACTANCES (%)Direct axis synchronous xd 285 245 220Quadrature axis synchronous xq 165 140 125Direct axis transient x'd 24,4 21,0 18,8Direct axis subtransient x"d 12,0 10,3 9,2Quadrature axis subtransient x"q 14,4 12,4 11,1Negative sequence x2 13,1 11,3 10,1Zero sequence x0 1,6 1,4 1,3

TIME CONSTANTS [s]Open circuit (T'do) 0,64 Subtransient (T''d) 0,008Transient (T'd) 0,045 Armature (Ta) 0,006

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6310 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 165Inertia (J) (IM B34) [kgm2] 0,160Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,14Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,28Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

RATING

V

- SAE / IM B34

4 POLES60 Hz-1800 min-1

>= 300%+/- 0,5%

speed from -2% to +5%, p.f. from 0,8 to 1)

SIN.DT.273.3 176

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.273.3 177

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 10 20 30 40 50 60 70 80 90

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.273.3 178

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 39,5 40,0 40,0kW 31,6 32,0 32,04/4 87,9 88,6 88,7

EFFICIENCY (%) @ 0,8 p.f. 3/4 89,7 89,8 90,22/4 90,5 90,5 90,94/4 90,3 90,8 90,9

EFFICIENCY (%) @ 1,0 p.f. 3/4 91,8 91,9 92,22/4 92,4 92,4 92,8

SHORT CIRCUIT RATIO 0,40 0,47 0,53REACTANCES (%)Direct axis synchronous xd 290 245 220Quadrature axis synchronous xq 160 135 120Direct axis transient x'd 24,2 20,5 18,3Direct axis subtransient x"d 11,6 9,8 8,8Quadrature axis subtransient x"q 13,7 11,6 10,4Negative sequence x2 12,7 10,7 9,6Zero sequence x0 1,7 1,4 1,3

TIME CONSTANTS [s]Open circuit (T'do) 0,66 Subtransient (T''d) 0,008Transient (T'd) 0,045 Armature (Ta) 0,007

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6310 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 175Inertia (J) (IM B34) [kgm2] 0,170Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,14Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,24Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

RATING

V

- SAE / IM B34

4 POLES60 Hz-1800 min-1

>= 300%+/- 0,5%

speed from -2% to +5%, p.f. from 0,8 to 1)

SIN.DT.274.2 179

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

84

86

88

90

92

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.274.2 180

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 160 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 20 40 60 80 100 120

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.274.2 181

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 51,0 51,0 51,0kW 40,8 40,8 40,84/4 88,5 89,3 89,4

EFFICIENCY (%) @ 0,8 p.f. 3/4 90,1 90,7 90,62/4 91,0 91,2 91,14/4 90,8 91,5 91,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 92,1 92,6 92,52/4 92,8 93,0 92,9

SHORT CIRCUIT RATIO 0,35 0,42 0,47REACTANCES (%)Direct axis synchronous xd 330 275 245Quadrature axis synchronous xq 185 155 140Direct axis transient x'd 27,9 23,3 20,8Direct axis subtransient x"d 14,3 11,9 10,6Quadrature axis subtransient x"q 16,4 13,7 12,2Negative sequence x2 15,3 12,8 11,4Zero sequence x0 3,1 2,6 2,3

TIME CONSTANTS [s]Open circuit (T'do) 0,52 Subtransient (T''d) 0,010Transient (T'd) 0,055 Armature (Ta) 0,009

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6313 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 205Inertia (J) (IM B34) [kgm2] 0,275Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,25Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,24Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

4 POLES

- SAE / IM B34

speed from -2% to +5%, p.f. from 0,8 to 1)

>= 300%+/- 0,5%

AMBIENT TEMPERATURE

Winding pitch

Winding code

60 Hz-1800 min-1

Number of leads

WINDING DATATEMPERATURE RISEINSULATION CLASS

RATING

V

POWER FACTOR

SIN.DT.275.2 182

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.275.2 183

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 20 40 60 80 100 120 140

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.275.2 184

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 59,5 59,5 59,5kW 47,6 47,6 47,64/4 88,7 89,0 89,1

EFFICIENCY (%) @ 0,8 p.f. 3/4 90,1 90,3 90,42/4 91,0 90,9 91,14/4 90,9 91,2 91,2

EFFICIENCY (%) @ 1,0 p.f. 3/4 92,1 92,3 92,32/4 92,8 92,8 92,9

SHORT CIRCUIT RATIO 0,33 0,39 0,44REACTANCES (%)Direct axis synchronous xd 330 275 245Quadrature axis synchronous xq 185 155 140Direct axis transient x'd 27,3 22,8 20,4Direct axis subtransient x"d 14,0 11,7 10,5Quadrature axis subtransient x"q 16,2 13,5 12,1Negative sequence x2 15,1 12,6 11,3Zero sequence x0 3,2 2,7 2,4

TIME CONSTANTS [s]Open circuit (T'do) 0,57 Subtransient (T''d) 0,010Transient (T'd) 0,055 Armature (Ta) 0,010

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6313 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 215Inertia (J) (IM B34) [kgm2] 0,301Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,25Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,19Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

RATING

V

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

- SAE / IM B34

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES60 Hz-1800 min-1

Winding pitch

>= 300%+/- 0,5%

SIN.DT.276.2 185

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

86

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.276.2 186

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 SB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 20 40 60 80 100 120 140 160

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.276.2 187

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 76,0 76,0 76,0kW 60,8 60,8 60,84/4 89,7 90,1 90,4

EFFICIENCY (%) @ 0,8 p.f. 3/4 91,2 91,2 91,32/4 91,9 91,8 91,84/4 91,7 92,1 92,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 93,0 93,0 93,12/4 93,6 93,4 93,5

SHORT CIRCUIT RATIO 0,33 0,40 0,45REACTANCES (%)Direct axis synchronous xd 330 275 245Quadrature axis synchronous xq 185 155 140Direct axis transient x'd 26,6 22,2 19,8Direct axis subtransient x"d 13,2 11,0 9,8Quadrature axis subtransient x"q 15,7 13,1 11,7Negative sequence x2 14,4 12,0 10,7Zero sequence x0 3,0 2,5 2,2

TIME CONSTANTS [s]Open circuit (T'do) 0,60 Subtransient (T''d) 0,010Transient (T'd) 0,06 Armature (Ta) 0,011

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6313 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 260Inertia (J) (IM B34) [kgm2] 0,361Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,25Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,11Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

>= 300%+/- 0,5%

- SAE / IM B34

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES60 Hz-1800 min-1

Winding pitch

RATING

V

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

SIN.DT.277.2 188

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.277.2 189

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 50 100 150 200 250

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.277.2 190

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 87,0 87,0 87,0kW 69,6 69,6 69,64/4 90,4 91,0 91,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 91,4 91,8 91,72/4 91,8 91,9 91,74/4 92,3 92,8 92,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 93,2 93,5 93,42/4 93,5 93,5 93,4

SHORT CIRCUIT RATIO 0,35 0,42 0,47REACTANCES (%)Direct axis synchronous xd 320 265 235Quadrature axis synchronous xq 175 145 130Direct axis transient x'd 25,5 21,3 19,0Direct axis subtransient x"d 12,6 10,5 9,4Quadrature axis subtransient x"q 15,1 12,6 11,3Negative sequence x2 13,8 11,5 10,3Zero sequence x0 2,6 2,2 2,0

TIME CONSTANTS [s]Open circuit (T'do) 0,76 Subtransient (T''d) 0,010Transient (T'd) 0,062 Armature (Ta) 0,012

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6313 2RS C3 / PrelubricatedN-end bearing/Lubrication 6309 2RS C3 / PrelubricatedWeight (IM B34) [kg] 300Inertia (J) (IM B34) [kgm2] 0,426Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,25Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,08Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

4 POLES60 Hz-1800 min-1

>= 300%

Winding pitch

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

V

RATING

- SAE / IM B34

+/- 0,5%speed from -2% to +5%, p.f. from 0,8 to 1)

SIN.DT.278.2 191

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

88

89

90

91

92

93

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.278.2 192

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 200 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 50 100 150 200 250

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.278.2 193

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 99 108 108kW 79 86 864/4 90,9 91,3 91,6

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,0 92,4 92,52/4 92,5 92,7 92,84/4 92,8 93,0 93,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 93,7 93,9 94,12/4 94,1 94,2 94,3

SHORT CIRCUIT RATIO 0,33 0,36 0,40REACTANCES (%)Direct axis synchronous xd 330 300 270Quadrature axis synchronous xq 185 170 150Direct axis transient x'd 25,8 23,5 21,0Direct axis subtransient x"d 12,5 11,4 10,2Quadrature axis subtransient x"q 13,8 12,6 11,3Negative sequence x2 13,2 12,0 10,7Zero sequence x0 2,9 2,6 2,3

TIME CONSTANTS [s]Open circuit (T'do) 0,82 Subtransient (T''d) 0,005Transient (T'd) 0,071 Armature (Ta) 0,005

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6215 2RS C3 / PrelubricatedN-end bearing/Lubrication 6311 2RS C3 / PrelubricatedWeight (IM B34) [kg] 305Inertia (J) (IM B34) [kgm2] 0,632Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,08Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

>= 300%+/- 0,5%

4 POLES60 Hz-1800 min-1

speed from -2% to +5%, p.f. from 0,8 to 1)

RATING

V

- SAE / IM B34

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

SIN.DT.279.3 194

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.279.3 195

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

0

10

20

30

40

50

0 50 100 150 200 250 300

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.279.3 196

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 103 114 114kW 82 91 914/4 91,8 92,1 92,2

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,6 93,0 93,12/4 93,0 93,3 93,34/4 93,5 93,7 93,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,2 94,5 94,52/4 94,5 94,7 94,7

SHORT CIRCUIT RATIO 0,35 0,38 0,43REACTANCES (%)Direct axis synchronous xd 305 280 250Quadrature axis synchronous xq 170 155 140Direct axis transient x'd 23,9 22,0 19,7Direct axis subtransient x"d 11,3 10,4 9,3Quadrature axis subtransient x"q 12,6 11,6 10,4Negative sequence x2 11,9 11,0 9,8Zero sequence x0 2,6 2,4 2,1

TIME CONSTANTS [s]Open circuit (T'do) 0,90 Subtransient (T''d) 0,006Transient (T'd) 0,075 Armature (Ta) 0,006

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6215 2RS C3 / PrelubricatedN-end bearing/Lubrication 6311 2RS C3 / PrelubricatedWeight (IM B34) [kg] 335Inertia (J) (IM B34) [kgm2] 0,698Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,063Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

RATING

- SAE / IM B34

+/- 0,5%speed from -2% to +5%, p.f. from 0,8 to 1)

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

V

4 POLES60 Hz-1800 min-1

>= 300%

Winding pitch

SIN.DT.280.3 197

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.280.3 198

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 SB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 50 100 150 200 250 300

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.280.3 199

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 MA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 116 121 131kW 92 97 1054/4 91,9 92,2 92,4

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,7 93,0 93,02/4 93,0 93,3 93,24/4 93,6 93,8 94,0

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,2 94,4 94,52/4 94,5 94,7 94,6

SHORT CIRCUIT RATIO 0,32 0,37 0,38REACTANCES (%)Direct axis synchronous xd 330 290 280Quadrature axis synchronous xq 185 160 155Direct axis transient x'd 25,4 22,1 21,5Direct axis subtransient x"d 11,9 10,4 10,1Quadrature axis subtransient x"q 13,1 11,4 11,1Negative sequence x2 12,5 10,9 10,6Zero sequence x0 2,7 2,4 2,3

TIME CONSTANTS [s]Open circuit (T'do) 0,95 Subtransient (T''d) 0,006Transient (T'd) 0,078 Armature (Ta) 0,006

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6215 2RS C3 / PrelubricatedN-end bearing/Lubrication 6311 2RS C3 / PrelubricatedWeight (IM B34) [kg] 370Inertia (J) (IM B34) [kgm2] 0,789Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,06Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

Winding codeINSULATION CLASS Number of leads

>= 300%+/- 0,5%

4 POLES60 Hz-1800 min-1

RATING

V

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE

speed from -2% to +5%, p.f. from 0,8 to 1)

- SAE / IM B34

SIN.DT.281.4 200

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.281.4 201

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

0

10

20

30

40

50

0 50 100 150 200 250 300 350

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.281.4 202

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 LA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 153 164 164kW 122 131 1314/4 92,2 92,4 92,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,9 93,1 93,22/4 93,2 93,4 93,34/4 93,8 94,0 94,0

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,4 94,5 94,62/4 94,6 94,8 94,7

SHORT CIRCUIT RATIO 0,37 0,41 0,46REACTANCES (%)Direct axis synchronous xd 310 275 245Quadrature axis synchronous xq 170 150 135Direct axis transient x'd 22,6 20,2 18,1Direct axis subtransient x"d 11,2 10,0 8,9Quadrature axis subtransient x"q 12,4 11,1 9,9Negative sequence x2 11,8 10,5 9,4Zero sequence x0 2,6 2,3 2,1

TIME CONSTANTS [s]Open circuit (T'do) 1,08 Subtransient (T''d) 0,006Transient (T'd) 0,087 Armature (Ta) 0,007

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6215 2RS C3 / PrelubricatedN-end bearing/Lubrication 6311 2RS C3 / PrelubricatedWeight (IM B34) [kg] 405Inertia (J) (IM B34) [kgm2] 0,924Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,027Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

4 POLES60 Hz-1800 min-1

>= 300%

Winding pitch

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

V

RATING

- SAE / IM B34

+/- 0,5%speed from -2% to +5%, p.f. from 0,8 to 1)

SIN.DT.282.4 203

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 LA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.282.4 204

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 225 LA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 50 100 150 200 250 300 350 400

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.282.4 205

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 205 205 205kW 164 164 1644/4 92,7 92,8 93,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,3 93,4 93,72/4 93,5 93,4 93,34/4 94,2 94,3 94,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,7 94,8 95,02/4 94,9 94,8 94,7

SHORT CIRCUIT RATIO 0,38 0,46 0,51REACTANCES (%)Direct axis synchronous xd 350 290 260Quadrature axis synchronous xq 170 140 125Direct axis transient x'd 30,0 25,0 22,3Direct axis subtransient x"d 16,7 13,9 12,4Quadrature axis subtransient x"q 18,3 15,3 13,7Negative sequence x2 17,5 14,6 13,1Zero sequence x0 3,6 3,0 2,7

TIME CONSTANTS [s]Open circuit (T'do) 0,95 Subtransient (T''d) 0,011Transient (T'd) 0,09 Armature (Ta) 0,012

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6218 2RS C3 / PrelubricatedN-end bearing/Lubrication 6313 2RS C3 / PrelubricatedWeight (IM B34) [kg] 530Inertia (J) (IM B34) [kgm2] 1,410Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,52Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,024Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

>= 300%+/- 0,5%

- SAE / IM B34

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES60 Hz-1800 min-1

Winding pitch

RATING

V

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

SIN.DT.283.3 206

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

8990919293949596

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

8990919293949596

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.283.3 207

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 100 200 300 400 500 600

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V440 V

SIN.DT.283.3 208

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 230 230 230kW 184 184 1844/4 92,8 93,0 93,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,5 93,6 93,82/4 93,7 93,7 93,54/4 94,3 94,4 94,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,9 94,9 95,12/4 95,0 95,0 94,9

SHORT CIRCUIT RATIO 0,37 0,44 0,49REACTANCES (%)Direct axis synchronous xd 335 280 250Quadrature axis synchronous xq 160 135 120Direct axis transient x'd 29,2 24,4 21,8Direct axis subtransient x"d 15,2 12,7 11,4Quadrature axis subtransient x"q 16,9 14,1 12,6Negative sequence x2 16,1 13,4 12,0Zero sequence x0 3,0 2,5 2,2

TIME CONSTANTS [s]Open circuit (T'do) 0,95 Subtransient (T''d) 0,011Transient (T'd) 0,09 Armature (Ta) 0,013

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6218 2RS C3 / PrelubricatedN-end bearing/Lubrication 6313 2RS C3 / PrelubricatedWeight (IM B34) [kg] 590Inertia (J) (IM B34) [kgm2] 1,66Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,52Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,020Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

speed from -2% to +5%, p.f. from 0,8 to 1)

- SAE / IM B34

4 POLES60 Hz-1800 min-1

RATING

V

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

>= 300%+/- 0,5%

SIN.DT.284.3 209

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.284.3 210

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

0

10

20

30

40

50

0 100 200 300 400 500 600

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V

SIN.DT.284.3 211

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 260 270 270kW 208 216 2164/4 93,4 93,5 93,8

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,1 94,2 94,22/4 94,2 94,4 94,04/4 94,8 94,8 95,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,3 95,4 95,42/4 95,4 95,6 95,3

SHORT CIRCUIT RATIO 0,35 0,40 0,45REACTANCES (%)Direct axis synchronous xd 350 305 275Quadrature axis synchronous xq 175 150 135Direct axis transient x'd 27,7 24,0 21,5Direct axis subtransient x"d 13,0 11,3 10,1Quadrature axis subtransient x"q 14,5 12,6 11,3Negative sequence x2 13,8 12,0 10,7Zero sequence x0 2,8 2,4 2,1

TIME CONSTANTS [s]Open circuit (T'do) 1,00 Subtransient (T''d) 0,011Transient (T'd) 0,095 Armature (Ta) 0,013

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6218 2RS C3 / PrelubricatedN-end bearing/Lubrication 6313 2RS C3 / PrelubricatedWeight (IM B34) [kg] 660Inertia (J) (IM B34) [kgm2] 1,89Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,52Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [Ω] @ 20 °C - Star series 0,014Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

RATING

- SAE / IM B34

+/- 0,5%speed from -2% to +5%, p.f. from 0,8 to 1)

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

V

4 POLES60 Hz-1800 min-1

>= 300%

Winding pitch

SIN.DT.285.3 212

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.285.3 213

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 250 LA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 100 200 300 400 500 600 700

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V

SIN.DT.285.3 214

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 370 370 370kW 296 296 2964/4 92,4 93,4 93,6

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,5 93,8 94,12/4 93,7 93,8 94,14/4 94,0 94,8 94,9

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,9 95,1 95,32/4 95,0 95,1 95,3

SHORT CIRCUIT RATIO 0,27 0,32 0,36REACTANCES (%)Direct axis synchronous xd 445 370 330Quadrature axis synchronous xq 220 185 165Direct axis transient x'd 39,5 33,0 29,5Direct axis subtransient x"d 19,1 15,9 14,2Quadrature axis subtransient x"q 21,6 18,0 16,1Negative sequence x2 20,3 16,9 15,1Zero sequence x0 5,0 4,2 3,8

TIME CONSTANTS [s]Open circuit (T'do) 1,60 Subtransient (T''d) 0,014Transient (T'd) 0,145 Armature (Ta) 0,018

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6319 C3 / With grease nippleN-end bearing/Lubrication 6315 2Z C3 / PrelubricatedWeight (IM B34) [kg] 830Inertia (J) (IM B34) [kgm2] 3,66Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star series 12Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

RATING

V

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

- SAE / IM B34

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES60 Hz-1800 min-1

Winding pitch

>= 300%+/- 0,5%

SIN.DT.287.5 215

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effi

cien

cy [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.287.5 216

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 100 200 300 400 500 600 700 800 900 1000

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V

SIN.DT.287.5 217

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 425 425 425kW 340 340 3404/4 92,9 93,7 93,8

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,8 94,0 94,22/4 94,1 94,0 94,14/4 94,4 95,0 95,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,1 95,2 95,42/4 95,3 95,3 95,4

SHORT CIRCUIT RATIO 0,29 0,35 0,39REACTANCES (%)Direct axis synchronous xd 415 345 310Quadrature axis synchronous xq 210 175 155Direct axis transient x'd 36,0 30,0 26,8Direct axis subtransient x"d 16,8 14,0 12,5Quadrature axis subtransient x"q 19,7 16,4 14,7Negative sequence x2 18,2 15,2 13,6Zero sequence x0 4,6 3,8 3,4

TIME CONSTANTS [s]Open circuit (T'do) 1,42 Subtransient (T''d) 0,014Transient (T'd) 0,14 Armature (Ta) 0,018

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6319 C3 / With grease nippleN-end bearing/Lubrication 6315 2Z C3 / PrelubricatedWeight (IM B34) [kg] 920Inertia (J) (IM B34) [kgm2] 4,25Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star series 8,5Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

4 POLES60 Hz-1800 min-1

>= 300%

Winding pitch

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

V

RATING

- SAE / IM B34

+/- 0,5%speed from -2% to +5%, p.f. from 0,8 to 1)

SIN.DT.288.5 218

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effi

cien

cy [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.288.5 219

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 SB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 200 400 600 800 1000 1200

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V

SIN.DT.288.5 220

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 500 500 500kW 400 400 4004/4 93,4 93,9 94,1

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,2 94,4 94,52/4 94,4 94,4 94,34/4 94,8 95,2 95,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,4 95,5 95,72/4 95,6 95,6 95,5

SHORT CIRCUIT RATIO 0,32 0,38 0,43REACTANCES (%)Direct axis synchronous xd 395 330 295Quadrature axis synchronous xq 210 175 155Direct axis transient x'd 35,4 29,5 26,4Direct axis subtransient x"d 15,8 13,2 11,8Quadrature axis subtransient x"q 18,7 15,6 13,9Negative sequence x2 17,3 14,4 12,9Zero sequence x0 4,0 3,3 2,9

TIME CONSTANTS [s]Open circuit (T'do) 1,60 Subtransient (T''d) 0,014Transient (T'd) 0,145 Armature (Ta) 0,018

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6319 C3 / With grease nippleN-end bearing/Lubrication 6315 2Z C3 / PrelubricatedWeight (IM B34) [kg] 1060Inertia (J) (IM B34) [kgm2] 4,80Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 0,39Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star series 7,1Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

Winding codeINSULATION CLASS Number of leads

>= 300%+/- 0,5%

4 POLES60 Hz-1800 min-1

RATING

V

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE

speed from -2% to +5%, p.f. from 0,8 to 1)

- SAE / IM B34

SIN.DT.289.5 221

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.289.5 222

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 315 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

0

10

20

30

40

50

0 200 400 600 800 1000 1200 1400

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V

SIN.DT.289.5 223

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 610 625 625kW 488 500 5004/4 93,8 94,3 93,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,8 95,1 94,52/4 95,1 95,2 94,94/4 95,1 95,5 94,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,9 96,1 95,62/4 96,1 96,2 96,0

SHORT CIRCUIT RATIO 0,39 0,45 0,50REACTANCES (%)Direct axis synchronous xd 300 255 230Quadrature axis synchronous xq 175 150 130Direct axis transient x'd 24,5 21,0 18,8Direct axis subtransient x"d 14,0 12,0 10,7Quadrature axis subtransient x"q 15,9 13,6 12,2Negative sequence x2 14,9 12,7 11,4Zero sequence x0 3,7 3,2 2,8

TIME CONSTANTS [s]Open circuit (T'do) 1,65 Subtransient (T''d) 0,015Transient (T'd) 0,135 Armature (Ta) 0,021

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6322 C3 / With grease nippleN-end bearing/Lubrication 6317 2Z C3 / PrelubricatedWeight (IM B34) [kg] 1250Inertia (J) (IM B34) [kgm2] 7,97Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,12Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star series 6,8Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

RATING

V

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

- SAE / IM B34

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES60 Hz-1800 min-1

Winding pitch

>= 300%+/- 0,5%

SIN.DT.291.5 224

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.291.5 225

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 200 400 600 800 1000 1200 1400 1600

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V

SIN.DT.291.5 226

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 705 705 675kW 564 564 5404/4 94,7 95,0 95,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,3 95,5 95,42/4 95,5 95,6 95,24/4 95,8 96,1 96,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,3 96,4 96,42/4 96,4 96,5 96,2

SHORT CIRCUIT RATIO 0,41 0,49 0,57REACTANCES (%)Direct axis synchronous xd 245 205 175Quadrature axis synchronous xq 135 115 95Direct axis transient x'd 20,5 17,1 14,6Direct axis subtransient x"d 10,4 8,7 7,4Quadrature axis subtransient x"q 12,4 10,3 8,8Negative sequence x2 11,4 9,5 8,2Zero sequence x0 3,0 2,5 2,1

TIME CONSTANTS [s]Open circuit (T'do) 1,95 Subtransient (T''d) 0,016Transient (T'd) 0,16 Armature (Ta) 0,022

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6322 C3 / With grease nippleN-end bearing/Lubrication 6317 2Z C3 / PrelubricatedWeight (IM B34) [kg] 1550Inertia (J) (IM B34) [kgm2] 9,29Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,12Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star series 3,4Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

+/- 0,5%speed from -2% to +5%, p.f. from 0,8 to 1)

- SAE / IM B34

4 POLES60 Hz-1800 min-1

RATING

V

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

>= 300%

SIN.DT.292.4 227

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Ef

ficie

ncy

[%]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.292.4 228

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 SB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

0

10

20

30

40

0 200 400 600 800 1000 1200 1400 1600 1800

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V

SIN.DT.292.4 229

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416

Star parallel 190 208kVA 900 900kW 720 7204/4 95,2 95,4

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,6 95,72/4 95,8 95,94/4 96,2 96,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,6 96,62/4 96,7 96,8

SHORT CIRCUIT RATIO 0,53 0,63REACTANCES (%)Direct axis synchronous xd 205 170Quadrature axis synchronous xq 110 90Direct axis transient x'd 16,6 13,8Direct axis subtransient x"d 7,9 6,6Quadrature axis subtransient x"q 9,8 8,2Negative sequence x2 8,9 7,4Zero sequence x0 2,2 1,8

TIME CONSTANTS [s]Open circuit (T'do) 2,2 Subtransient (T''d) 0,016Transient (T'd) 0,18 Armature (Ta) 0,026

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6322 C3 / With grease nippleN-end bearing/Lubrication 6317 2Z C3 / PrelubricatedWeight (IM B34) [kg] 2030Inertia (J) (IM B34) [kgm2] 13,12Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,12Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star series 2,0Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

RATING

V

- SAE / IM B34

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES60 Hz-1800 min-1

>= 300%+/- 0,5%

SIN.DT.294.4 230

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.294.4 231

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

∆ P = Pn x (Is / In) / (cosϕn x ηn)

60 Hz - 1800 min-1

0

10

20

30

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V

SIN.DT.294.4 232

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 1100 1150 1090kW 880 920 8724/4 95,3 95,5 95,3

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,5 95,7 95,62/4 95,5 95,6 95,54/4 96,3 96,5 96,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,5 96,6 96,62/4 96,5 96,5 96,5

SHORT CIRCUIT RATIO 0,46 0,53 0,62REACTANCES (%)Direct axis synchronous xd 230 200 170Quadrature axis synchronous xq 130 115 95Direct axis transient x'd 21,4 18,7 15,8Direct axis subtransient x"d 10,0 8,7 7,4Quadrature axis subtransient x"q 10,7 9,3 7,9Negative sequence x2 10,3 9,0 7,6Zero sequence x0 2,6 2,3 1,9

TIME CONSTANTS [s]Open circuit (T'do) 2,21 Subtransient (T''d) 0,018Transient (T'd) 0,18 Armature (Ta) 0,025

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2100Inertia (J) (IM B34) [kgm2] 16,3Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,55Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star series 1,9Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

+/- 0,5%speed from -2% to +5%, p.f. from 0,8 to 1)

60 Hz-1800 min-1

>= 300%

RATING

V

- SAE / IM B34

POWER FACTOR Winding pitch

AMBIENT TEMPERATURE

INSULATION CLASS Number of leads

4 POLES

WINDING DATATEMPERATURE RISE Winding code

SIN.DT.295.3 233

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.295.3 234

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V

SIN.DT.295.3 235

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416

Star parallel 190 208kVA 1320 1230kW 1056 9844/4 95,6 95,7

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,8 95,92/4 95,8 95,74/4 96,5 96,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,7 96,82/4 96,7 96,6

SHORT CIRCUIT RATIO 0,40 0,51REACTANCES (%)Direct axis synchronous xd 295 230Quadrature axis synchronous xq 165 130Direct axis transient x'd 25,5 19,8Direct axis subtransient x"d 12,4 9,6Quadrature axis subtransient x"q 13,1 10,2Negative sequence x2 12,8 10,0Zero sequence x0 2,9 2,3

TIME CONSTANTS [s]Open circuit (T'do) 2,4 Subtransient (T''d) 0,018Transient (T'd) 0,18 Armature (Ta) 0,025

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2300Inertia (J) (IM B34) [kgm2] 17,0Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,55Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star series 1,7Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

>= 300%+/- 0,5%

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES60 Hz-1800 min-1

RATING

V

- SAE / IM B34

AMBIENT TEMPERATURE WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

SIN.DT.296.3 236

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.296.3 237

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V

SIN.DT.296.3 238

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416

Star parallel 190 208kVA 1370 1420kW 1096 11364/4 95,8 96,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,0 96,22/4 95,9 96,24/4 96,7 96,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,8 97,02/4 96,7 97,0

SHORT CIRCUIT RATIO 0,42 0,48REACTANCES (%)Direct axis synchronous xd 300 260Quadrature axis synchronous xq 170 145Direct axis transient x'd 26,0 22,5Direct axis subtransient x"d 12,3 10,6Quadrature axis subtransient x"q 13,6 11,8Negative sequence x2 12,9 11,2Zero sequence x0 3,0 2,6

TIME CONSTANTS [s]Open circuit (T'do) 2,6 Subtransient (T''d) 0,018Transient (T'd) 0,20 Armature (Ta) 0,027

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2550Inertia (J) (IM B34) [kgm2] 19,3Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,55Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star series 1,4Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

4 POLES60 Hz-1800 min-1

>= 300%

Winding pitch

AMBIENT TEMPERATURE WINDING DATATEMPERATURE RISE Winding codeINSULATION CLASS Number of leads

POWER FACTOR

V

RATING

- SAE / IM B34

+/- 0,5%speed from -2% to +5%, p.f. from 0,8 to 1)

SIN.DT.297.3 239

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.297.3 240

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V

SIN.DT.297.3 241

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

CONTINUOUS DUTY

40°CH R3H 12

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star series 380 416 440

Star parallel 190 208 220kVA 1500 1520 1450kW 1200 1216 11604/4 96,1 96,2 96,3

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,3 96,4 96,42/4 96,3 96,3 96,24/4 96,9 97,0 97,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 97,1 97,2 97,22/4 97,1 97,1 97,0

SHORT CIRCUIT RATIO 0,48 0,57 0,67REACTANCES (%)Direct axis synchronous xd 250 210 180Quadrature axis synchronous xq 145 125 105Direct axis transient x'd 21,2 18,0 15,3Direct axis subtransient x"d 9,5 8,1 6,9Quadrature axis subtransient x"q 10,6 8,9 7,6Negative sequence x2 10,0 8,5 7,2Zero sequence x0 2,6 2,2 1,9

TIME CONSTANTS [s]Open circuit (T'do) 2,70 Subtransient (T''d) 0,018Transient (T'd) 0,21 Armature (Ta) 0,027

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2800Inertia (J) (IM B34) [kgm2] 22,5Overspeed [min-1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,55Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C - Star series 1,2Overloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

4 POLES

Winding code

60 Hz-1800 min-1

speed from -2% to +5%, p.f. from 0,8 to 1)

- SAE / IM B34

AMBIENT TEMPERATURE WINDING DATA

RATING

V

POWER FACTOR Winding pitch

TEMPERATURE RISEINSULATION CLASS Number of leads

>= 300%+/- 0,5%

SIN.DT.298.3 242

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.298.3 243

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice.

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 500 1000 1500 2000 2500 3000 3500 4000

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V

SIN.DT.298.3 244

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MA 4

CONTINUOUS DUTY

40°CH 08H 6

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star 380 416 440

Delta 220 240 254kVA 800 800 800kW 640 640 6404/4 94,7 95,1 95,1

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,3 95,4 95,52/4 95,5 95,5 95,54/4 95,8 96,1 96,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,3 96,4 96,42/4 96,4 96,4 96,4

SHORT CIRCUIT RATIO 0,37 0,45 0,50REACTANCES (%)Direct axis synchronous xd 275 230 205Quadrature axis synchronous xq 150 125 110Direct axis transient x'd 22,6 18,9 16,9Direct axis subtransient x"d 11,5 9,6 8,6Quadrature axis subtransient x"q 13,7 11,4 10,2Negative sequence x2 12,6 10,5 9,4Zero sequence x0 3,3 2,8 2,5

TIME CONSTANTS [s]Open circuit (T'do) 1,95 Subtransient (T''d) 0,016Transient (T'd) 0,16 Armature (Ta) 0,022

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6322 C3 / With grease nippleN-end bearing/Lubrication 6317 2Z C3 / PrelubricatedWeight (IM B34) [kg] 1800Inertia (J) (IM B34) [kgm2] 11,69Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,12Degree of protection IP 23Type of construction available B2Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C - Star seriesOverloads 10% for 1 hour3-phase short circuit current (3 In)Voltage regulation accuracy (in steady state condition,

Radio interference EN 55011 Class B Group 1Wave form THF < 2% Total harmonic content < 2% (at no load)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

- SAE / IM B34

2,7

>= 300%

60 Hz-1800 min-1

speed from -2% to +5%, p.f. from 0,8 to 1)

4 POLES

+/- 0,5 %

AMBIENT TEMPERATURE WINDING DATA TEMPERATURE RISE Winding code INSULATION CLASS Number of leads

POWER FACTOR Winding pitch

RATING

V

SIN.DT.250.4 245

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

440 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.250.4 246

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 355 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

) 380 V416 V440 V

SIN.DT.250.4 247

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 4

CONTINUOUS DUTY

40°CH 08H 6

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star 380 416

Delta 220 240kVA 1100 1150kW 880 9204/4 95,3 95,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,5 95,72/4 95,5 95,64/4 96,3 96,5

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,5 96,62/4 96,5 96,5

SHORT CIRCUIT RATIO 0,46 0,53REACTANCES (%)Direct axis synchronous xd 230 200Quadrature axis synchronous xq 130 115Direct axis transient x'd 21,4 18,7Direct axis subtransient x"d 10,0 8,7Quadrature axis subtransient x"q 10,7 9,3Negative sequence x2 10,3 9,0Zero sequence x0 2,6 2,3

TIME CONSTANTS [s]Open circuit (T'do) 2,21 Subtransient (T''d) 0,018Transient (T'd) 0,18 Armature (Ta) 0,025

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2100Inertia (J) (IM B34) [kgm2] 16,3Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C - Star series 1,7Overloads 10% for 1 hour3-phase short circuit current (3 ln)Voltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2%

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

AMBIENT TEMPERATURE TEMPERATURE RISE INSULATION CLASS

POWER FACTOR

WINDING DATA

RATING

V

>= 300%+/- 0,5%

4 POLES

Winding code Number of leads

Winding pitch

60 Hz-1800 min-1

EN 55011

(at no load)

SIN.DT.251.3 248

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.251.3 249

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V

SIN.DT.251.3 250

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

CONTINUOUS DUTY

40°CH 08H 6

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star 380 416

Delta 220 240kVA 1320 1230kW 1056 9844/4 95,6 95,7

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,8 95,92/4 95,8 95,74/4 96,5 96,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,7 96,82/4 96,7 96,6

SHORT CIRCUIT RATIO 0,40 0,51REACTANCES (%)Direct axis synchronous xd 295 230Quadrature axis synchronous xq 165 130Direct axis transient x'd 25,5 19,8Direct axis subtransient x"d 12,4 9,6Quadrature axis subtransient x"q 13,1 10,2Negative sequence x2 12,8 10,0Zero sequence x0 2,9 2,3

TIME CONSTANTS [s]Open circuit (T'do) 2,4 Subtransient (T''d) 0,018Transient (T'd) 0,18 Armature (Ta) 0,025

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2300Inertia (J) (IM B34) [kgm2] 17,0Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C - Star series 1,7Overloads 10% for 1 hour3-phase short circuit current (3 ln)Voltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2%

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

WINDING DATA

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding code INSULATION CLASS Number of leads

4 POLES

V

60 Hz-1800 min-1

EN 55011

(at no load)

RATING

>= 300%+/- 0,5%

AMBIENT TEMPERATURE

SIN.DT.252.3 251

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.252.3 252

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V

SIN.DT.252.3 253

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

CONTINUOUS DUTY

40°CH 08H 6

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star 380 416

Delta 220 240kVA 1370 1420kW 1096 11364/4 95,8 96,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,0 96,22/4 95,9 96,24/4 96,7 96,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,8 97,02/4 96,7 97,0

SHORT CIRCUIT RATIO 0,42 0,48REACTANCES (%)Direct axis synchronous xd 300 260Quadrature axis synchronous xq 170 145Direct axis transient x'd 26,0 22,5Direct axis subtransient x"d 12,3 10,6Quadrature axis subtransient x"q 13,6 11,8Negative sequence x2 12,9 11,2Zero sequence x0 3,0 2,6

TIME CONSTANTS [s]Open circuit (T'do) 2,6 Subtransient (T''d) 0,018Transient (T'd) 0,2 Armature (Ta) 0,027

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2550Inertia (J) (IM B34) [kgm2] 19,3Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C - Star series 1,4Overloads 10% for 1 hour3-phase short circuit current (3 ln)Voltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2%

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

60 Hz-1800 min-1

EN 55011

Winding code

(at no load)

4 POLES

RATING

V

>= 300%+/- 0,5%

AMBIENT TEMPERATURE WINDING DATA TEMPERATURE RISE INSULATION CLASS Number of leads

POWER FACTOR Winding pitch

SIN.DT.253.3 254

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.253.3 255

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V

SIN.DT.253.3 256

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

CONTINUOUS DUTY

40°CH 08H 6

0,8 2/3

FREQUENCY Hz 60VOLTAGE Star 380 416

Delta 220 240kVA 1520 1625kW 1216 13004/4 95,8 96,3

EFFICIENCY (%) @ 0,8 p.f. 3/4 96,1 96,52/4 96,1 96,54/4 96,7 97,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,9 97,22/4 96,9 97,2

SHORT CIRCUIT RATIO 0,48 0,53REACTANCES (%)Direct axis synchronous xd 250 225Quadrature axis synchronous xq 145 130Direct axis transient x'd 21,5 19,2Direct axis subtransient x"d 9,7 8,6Quadrature axis subtransient x"q 10,7 9,5Negative sequence x2 10,2 9,1Zero sequence x0 2,6 2,3

TIME CONSTANTS [s]Open circuit (T'do) 2,7 Subtransient (T''d) 0,018Transient (T'd) 0,21 Armature (Ta) 0,027

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2800Inertia (J) (IM B34) [kgm2] 22,5Overspeed [min -1] 2250Method of cooling IC 01Cooling air required [m3/s] 1,55Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C - Star series 1,2Overloads 10% for 1 hour3-phase short circuit current (3 ln)Voltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 2%Total harmonic content < 2%

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10, NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

AMBIENT TEMPERATURE WINDING DATA

RATING

V

POWER FACTOR Winding pitch

TEMPERATURE RISE Winding code INSULATION CLASS Number of leads

>= 300%+/- 0,5%

EN 55011

(at no load)

4 POLES60 Hz-1800 min-1

SIN.DT.254.3 257

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

Typical efficiency curves 60 Hz - 1800 min-1

380 V

416 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.254.3 258

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 4

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

60 Hz - 1800 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

0 500 1000 1500 2000 2500 3000 3500 4000

∆P [kVA]

Volta

ge D

ip (%

)

380 V416 V

SIN.DT.254.3 259

CONTINUOUS DUTY

40°CH 80H 6

0,8 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 390 400 380 456 468 480 500kW 312 320 304 365 374 384 4004/4 92,5 92,6 92,5 92,6 92,8 92,9 93,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,6 92,7 92,6 93,0 93,2 93,2 93,32/4 92,3 92,4 92,3 93,0 93,2 93,2 93,34/4 94,0 94,1 94,0 94,1 94,3 94,4 94,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,1 94,2 94,1 94,4 94,6 94,6 94,72/4 93,9 93,9 93,9 94,4 94,6 94,6 94,7

SHORT CIRCUIT RATIO 0,39 0,42 0,48 0,33 0,36 0,39 0,40REACTANCES (%)Direct axis synchronous xd 330 305 270 385 355 335 320Quadrature axis synchronous xq 185 170 150 215 200 185 180Direct axis transient x'd 34,6 32,0 28,2 40,5 37,1 34,8 33,3Direct axis subtransient x"d 16,0 14,8 13,1 18,7 17,2 16,1 15,4Quadrature axis subtransient x"q 16,6 15,4 13,6 19,5 17,9 16,8 16,0Negative sequence x2 16,2 15,0 13,2 19,0 17,4 16,3 15,6Zero sequence x0 4,0 3,7 3,3 4,7 4,3 4,0 3,9

TIME CONSTANTS [s]Open circuit (T'do) 1,55 Subtransient (T''d) 0,017Transient (T'd) 0,15 Armature (Ta) 0,016

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 1450Inertia (J) (IM B34) [kgm2] 11,8Overspeed [min-1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,17 / 1,42Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 5,8Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

EN 55011

(under no-load or non-distorting-load

AMBIENT TEMPERATURETEMPERATURE RISEINSULATION CLASS

POWER FACTOR

WINDING DATAWinding code

Number of leadsWinding pitch

>= 250%+/- 0,5%

6050

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SA 66 POLES

50 Hz-1000 min-1 / 60 Hz-1200 min-1

RATING

V

SIN.DT.050.3 260

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SA 6

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.050.3 261

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SA 6

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.050.3 262

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

50 Hz - 1000 min-1

60 Hz - 1200 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 SA 6

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.050.3 263

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATATEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 440 450 430 513 527 540 565kW 352 360 344 410 422 432 4524/4 92,8 92,9 92,8 93,0 93,2 93,3 93,4

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,9 93,0 92,9 93,3 93,5 93,6 93,72/4 92,6 92,7 92,6 93,3 93,5 93,6 93,74/4 94,3 94,4 94,3 94,4 94,6 94,7 94,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,4 94,5 94,4 94,7 94,9 95,0 95,02/4 94,1 94,2 94,1 94,7 94,9 95,0 95,0

SHORT CIRCUIT RATIO 0,40 0,43 0,48 0,34 0,37 0,39 0,41REACTANCES (%)Direct axis synchronous xd 320 295 260 375 345 320 310Quadrature axis synchronous xq 180 165 145 210 190 180 175Direct axis transient x'd 33,6 31,0 27,5 39,2 36,0 33,8 32,4Direct axis subtransient x"d 15,5 14,3 12,7 18,1 16,6 15,6 15,0Quadrature axis subtransient x"q 16,0 14,8 13,1 18,7 17,2 16,1 15,5Negative sequence x2 15,7 14,5 12,9 18,3 16,8 15,8 15,2Zero sequence x0 3,9 3,6 3,2 4,6 4,2 3,9 3,8

TIME CONSTANTS [s]Open circuit (T'do) 1,60 Subtransient (T''d) 0,017Transient (T'd) 0,15 Armature (Ta) 0,018

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 1600Inertia (J) (IM B34) [kgm2] 14,1Overspeed [min-1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,17 / 1,42Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 7,4Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

6050

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SB 66 POLES

50 Hz-1000 min-1 / 60 Hz-1200 min-1

RATING

V

SIN.DT.051.3 264

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SB 6

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.051.3 265

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SB 6

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.051.3 266

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

50 Hz - 1000 min-1

60 Hz - 1200 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 SB 6

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400 1600

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 200 400 600 800 1000 1200 1400

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.051.3 267

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATATEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 490 500 480 570 585 600 625kW 392 400 384 456 468 480 5004/4 93,5 93,6 93,5 93,6 93,8 93,9 94,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,6 93,7 93,6 93,9 94,1 94,2 94,32/4 93,3 93,4 93,3 93,9 94,1 94,2 94,34/4 94,8 94,9 94,8 94,9 95,1 95,2 95,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,9 95,0 94,9 95,2 95,3 95,4 95,52/4 94,7 94,8 94,7 95,2 95,3 95,4 95,5

SHORT CIRCUIT RATIO 0,41 0,44 0,49 0,35 0,38 0,40 0,42REACTANCES (%)Direct axis synchronous xd 310 285 255 360 330 310 295Quadrature axis synchronous xq 175 160 145 200 185 175 165Direct axis transient x'd 32,6 30,0 26,8 37,9 34,8 32,7 31,3Direct axis subtransient x"d 15,0 13,8 12,3 17,5 16,0 15,0 14,4Quadrature axis subtransient x"q 15,5 14,3 12,7 18,0 16,6 15,5 14,9Negative sequence x2 15,2 14,0 12,5 17,7 16,2 15,2 14,6Zero sequence x0 3,7 3,4 3,1 4,3 4,0 3,7 3,6

TIME CONSTANTS [s]Open circuit (T'do) 1,60 Subtransient (T''d) 0,017Transient (T'd) 0,15 Armature (Ta) 0,018

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 1800Inertia (J) (IM B34) [kgm2] 16,8Overspeed [min-1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,17 / 1,42Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 5,8Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

6050

RATING

V

50 Hz-1000 min-1 / 60 Hz-1200 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SC 66 POLES

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

SIN.DT.052.3 268

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SC 6

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.052.3 269

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SC 6

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.052.3 270

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1000 min-1

60 Hz - 1200 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 SC 6THREE-PHASE SYNCHRONOUS GENERATOR

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400 1600 1800

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 200 400 600 800 1000 1200 1400

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.052.3 271

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATATEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 610 620 600 707 725 744 775kW 488 496 480 566 580 595 6204/4 93,9 94,0 93,9 94,0 94,2 94,3 94,4

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,0 94,1 94,0 94,3 94,5 94,6 94,72/4 93,7 93,8 93,7 94,3 94,5 94,6 94,74/4 95,2 95,3 95,2 95,3 95,4 95,5 95,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,2 95,3 95,2 95,5 95,6 95,7 95,82/4 95,0 95,1 95,0 95,5 95,6 95,7 95,8

SHORT CIRCUIT RATIO 0,41 0,45 0,50 0,36 0,39 0,41 0,43REACTANCES (%)Direct axis synchronous xd 300 275 245 350 320 300 285Quadrature axis synchronous xq 170 155 140 195 180 170 160Direct axis transient x'd 31,6 29,0 26,1 36,7 33,6 31,6 30,2Direct axis subtransient x"d 14,4 13,2 11,9 16,7 15,3 14,4 13,8Quadrature axis subtransient x"q 14,7 13,5 12,1 17,1 15,7 14,7 14,1Negative sequence x2 14,7 13,5 12,1 17,0 15,6 14,7 14,0Zero sequence x0 3,6 3,3 3,0 4,2 3,8 3,6 3,4

TIME CONSTANTS [s]Open circuit (T'do) 2,00 Subtransient (T''d) 0,018Transient (T'd) 0,17 Armature (Ta) 0,02

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2000Inertia (J) (IM B34) [kgm2] 17,9Overspeed [min-1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,17 / 1,42Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 4,1Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 250%

EN 55011

+/- 0,5%

(under no-load or non-distorting-load

6050

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 66 POLES

50 Hz-1000 min-1 / 60 Hz-1200 min-1

RATING

V

SIN.DT.053.3 272

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 6

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.053.3 273

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 6

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.053.3 274

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

50 Hz - 1000 min-1

60 Hz - 1200 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 MA 6

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 200 400 600 800 1000 1200 1400 1600 1800

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.053.3 275

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATATEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 680 700 670 798 819 840 875kW 544 560 536 638 655 672 7004/4 94,1 94,2 94,1 94,2 94,4 94,5 94,6

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,2 94,3 94,2 94,5 94,7 94,8 94,92/4 93,9 94,0 93,9 94,5 94,7 94,8 94,94/4 95,3 95,4 95,3 95,4 95,6 95,7 95,7

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,4 95,5 95,4 95,6 95,8 95,9 95,92/4 95,2 95,3 95,2 95,6 95,8 95,9 95,9

SHORT CIRCUIT RATIO 0,43 0,46 0,52 0,36 0,40 0,42 0,44REACTANCES (%)Direct axis synchronous xd 285 265 235 335 305 290 275Quadrature axis synchronous xq 160 150 135 190 175 165 155Direct axis transient x'd 30,1 28,0 24,9 35,4 32,5 30,5 29,2Direct axis subtransient x"d 13,6 12,7 11,2 16,0 14,7 13,8 13,2Quadrature axis subtransient x"q 14,0 13,0 11,6 16,4 15,1 14,2 13,5Negative sequence x2 14,0 13,0 11,6 16,4 15,1 14,2 13,5Zero sequence x0 3,4 3,2 2,8 4,0 3,7 3,4 3,3

TIME CONSTANTS [s]Open circuit (T'do) 2,10 Subtransient (T''d) 0,018Transient (T'd) 0,18 Armature (Ta) 0,022

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2260Inertia (J) (IM B34) [kgm2] 19,4Overspeed [min-1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,17 / 1,42Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 3,3Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

6050

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 66 POLES

50 Hz-1000 min-1 / 60 Hz-1200 min-1

RATING

V

SIN.DT.054.3 276

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 6

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.054.3 277

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 6

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.054.3 278

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

50 Hz - 1000 min-1

60 Hz - 1200 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 MB 6

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 200 400 600 800 1000 1200 1400 1600 1800 2000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.054.3 279

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATATEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 780 800 760 912 936 960 1000kW 624 640 608 730 749 768 8004/4 94,4 94,5 94,4 94,5 94,7 94,8 94,9

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,5 94,6 94,5 94,8 95,0 95,1 95,22/4 94,2 94,3 94,2 94,8 95,0 95,1 95,24/4 95,6 95,7 95,6 95,7 95,8 95,9 96,0

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,6 95,7 95,6 95,9 96,0 96,1 96,22/4 95,4 95,5 95,4 95,9 96,0 96,1 96,2

SHORT CIRCUIT RATIO 0,44 0,47 0,53 0,37 0,41 0,43 0,45REACTANCES (%)Direct axis synchronous xd 275 255 225 325 295 280 265Quadrature axis synchronous xq 155 145 125 185 165 155 150Direct axis transient x'd 29,2 27,0 23,8 34,1 31,3 29,4 28,1Direct axis subtransient x"d 13,0 12,0 10,6 15,2 13,9 13,1 12,5Quadrature axis subtransient x"q 13,4 12,4 11,0 15,7 14,4 13,5 13,0Negative sequence x2 13,5 12,5 11,0 15,8 14,5 13,6 13,0Zero sequence x0 3,3 3,0 2,7 3,8 3,5 3,3 3,2

TIME CONSTANTS [s]Open circuit (T'do) 2,30 Subtransient (T''d) 0,018Transient (T'd) 0,18 Armature (Ta) 0,023

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2530Inertia (J) (IM B34) [kgm2] 20,9Overspeed [min-1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,17 / 1,42Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [mΩ] @ 20 °C (per phase) 2,9Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

6050

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 66 POLES

50 Hz-1000 min-1 / 60 Hz-1200 min-1

RATING

V

SIN.DT.055.3 280

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.055.3 281

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.055.3 282

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

50 Hz - 1000 min-1

60 Hz - 1200 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 LA 6

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.055.3 283

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 950 970 930 1106 1135 1164 1215kW 760 776 744 885 908 931 9724/4 94,6 94,7 94,6 94,7 94,9 95,0 95,1

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,7 94,8 94,7 95,0 95,2 95,2 95,32/4 94,4 94,5 94,4 95,0 95,2 95,2 95,34/4 95,7 95,8 95,7 95,8 96,0 96,1 96,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,8 95,9 95,8 96,0 96,2 96,2 96,32/4 95,6 95,7 95,6 96,0 96,2 96,2 96,3

SHORT CIRCUIT RATIO 0,44 0,48 0,54 0,38 0,41 0,44 0,46REACTANCES (%)Direct axis synchronous xd 270 250 225 315 290 270 260Quadrature axis synchronous xq 150 140 125 175 160 150 145Direct axis transient x'd 28,2 26,0 23,2 32,9 30,2 28,3 27,1Direct axis subtransient x"d 12,5 11,5 10,2 14,5 13,3 12,5 12,0Quadrature axis subtransient x"q 13,0 12,0 10,7 15,2 13,9 13,1 12,5Negative sequence x2 12,8 11,8 10,5 14,9 13,7 12,8 12,3Zero sequence x0 3,1 2,9 2,6 3,7 3,4 3,2 3,0

TIME CONSTANTS [s]Open circuit (T'do) 2,40 Subtransient (T''d) 0,019Transient (T'd) 0,19 Armature (Ta) 0,024

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2750Inertia (J) (IM B34) [kgm 2] 24,2Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,17 / 1,42Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 2,2Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-1000 min-1 / 60 Hz-1200 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 66 POLES

6050

RATING

V

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

SIN.DT.056.3 284

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.056.3 285

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.056.3 286

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1000 min-1

60 Hz - 1200 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 LB 6

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.056.3 287

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1050 1050 1020 1197 1229 1260 1315kW 840 840 816 958 983 1008 10524/4 94,4 94,5 94,3 94,8 95,0 95,1 95,2

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,5 94,6 94,4 95,1 95,2 95,3 95,42/4 94,2 94,3 94,1 95,1 95,2 95,3 95,44/4 95,6 95,7 95,5 95,9 96,1 96,1 96,2

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,6 95,7 95,6 96,1 96,2 96,3 96,42/4 95,4 95,5 95,3 96,1 96,2 96,3 96,4

SHORT CIRCUIT RATIO 0,48 0,53 0,59 0,42 0,46 0,49 0,51REACTANCES (%)Direct axis synchronous xd 290 260 235 330 300 285 270Quadrature axis synchronous xq 160 145 130 185 170 160 150Direct axis transient x'd 31,9 28,8 26,0 36,4 33,4 31,4 30,1Direct axis subtransient x"d 15,1 13,6 12,3 17,2 15,8 14,8 14,2Quadrature axis subtransient x"q 15,7 14,2 12,8 18,0 16,5 15,5 14,8Negative sequence x2 15,4 13,9 12,5 17,6 16,1 15,1 14,5Zero sequence x0 4,2 3,8 3,4 4,8 4,4 4,1 4,0

TIME CONSTANTS [s]Open circuit (T'do) 2,50 Subtransient (T''d) 0,014Transient (T'd) 0,27 Armature (Ta) 0,032

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 3200Inertia (J) (IM B34) [kgm2] 50,5Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 2,0 / 2,5Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 1,8Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-1000 min-1 / 60 Hz-1200 min-1

RATING

V

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SA 66 POLES

(under no-load or non-distorting-load

6050

>= 250%+/- 0,5%

EN 55011

SIN.DT.057.3 288

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SA 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.057.3 289

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SA 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.057.3 290

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1000 min-1

60 Hz - 1200 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 500 SA 6THREE-PHASE SYNCHRONOUS GENERATOR

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500 3000 3500 4000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.057.3 291

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1320 1330 1280 1516 1556 1596 1665kW 1056 1064 1024 1213 1245 1277 13324/4 94,8 94,9 94,7 95,2 95,4 95,5 95,6

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,9 95,0 94,8 95,4 95,6 95,7 95,82/4 94,6 94,7 94,5 95,4 95,6 95,7 95,84/4 95,9 96,0 95,8 96,2 96,4 96,4 96,5

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,0 96,0 95,9 96,4 96,6 96,6 96,72/4 95,8 95,8 95,7 96,4 96,6 96,6 96,7

SHORT CIRCUIT RATIO 0,49 0,54 0,60 0,43 0,47 0,50 0,52REACTANCES (%)Direct axis synchronous xd 280 255 230 320 295 280 265Quadrature axis synchronous xq 155 140 125 175 160 150 145Direct axis transient x'd 29,7 27,0 24,1 34,1 31,3 29,4 28,2Direct axis subtransient x"d 14,1 12,8 11,4 16,2 14,9 13,9 13,4Quadrature axis subtransient x"q 14,3 13,0 11,6 16,4 15,1 14,2 13,6Negative sequence x2 13,9 12,6 11,3 15,9 14,6 13,7 13,1Zero sequence x0 3,8 3,5 3,1 4,4 4,1 3,8 3,7

TIME CONSTANTS [s]Open circuit (T'do) 2,60 Subtransient (T''d) 0,014Transient (T'd) 0,26 Armature (Ta) 0,032

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 3800Inertia (J) (IM B34) [kgm2] 64,7Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 2,0 / 2,5Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 1,4Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-1000 min-1 / 60 Hz-1200 min-1

RATING

V

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SC 66 POLES

(under no-load or non-distorting-load

6050

>= 250%+/- 0,5%

EN 55011

SIN.DT.058.4 292

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SC 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.058.4 293

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SC 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.058.4 294

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1000 min-1

60 Hz - 1200 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 500 SC 6THREE-PHASE SYNCHRONOUS GENERATOR

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.058.4 295

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1580 1600 1530 1824 1872 1920 2000kW 1264 1280 1224 1459 1498 1536 16004/4 95,0 95,1 94,9 95,4 95,6 95,7 95,8

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,1 95,2 95,0 95,6 95,8 95,9 96,02/4 94,8 94,9 94,7 95,6 95,8 95,9 96,04/4 96,1 96,1 96,0 96,4 96,5 96,6 96,7

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,1 96,2 96,0 96,6 96,7 96,8 96,92/4 95,9 96,0 95,8 96,6 96,7 96,8 96,9

SHORT CIRCUIT RATIO 0,51 0,56 0,63 0,44 0,48 0,51 0,54REACTANCES (%)Direct axis synchronous xd 265 240 215 305 280 260 250Quadrature axis synchronous xq 150 135 120 170 155 145 140Direct axis transient x'd 27,4 25,0 22,2 31,6 29,0 27,2 26,0Direct axis subtransient x"d 12,6 11,5 10,2 14,5 13,3 12,5 12,0Quadrature axis subtransient x"q 12,7 11,6 10,3 14,7 13,5 12,6 12,1Negative sequence x2 12,6 11,5 10,2 14,5 13,3 12,5 12,0Zero sequence x0 3,5 3,2 2,8 4,0 3,7 3,5 3,3

TIME CONSTANTS [s]Open circuit (T'do) 2,80 Subtransient (T''d) 0,013Transient (T'd) 0,27 Armature (Ta) 0,037

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 4400Inertia (J) (IM B34) [kgm2] 73,6Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 2,0 / 2,5Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 1,1Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

6050

RATING

V

50 Hz-1000 min-1 / 60 Hz-1200 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 MB 66 POLES

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

SIN.DT.059.3 296

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 MB 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.059.3 297

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 MB 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.059.3 298

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1000 min-1

60 Hz - 1200 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 500 MB 6THREE-PHASE SYNCHRONOUS GENERATOR

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000 4500

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.059.3 299

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1850 1870 1780 2132 2188 2244 2340kW 1480 1496 1424 1706 1750 1795 18724/4 95,2 95,3 95,1 95,6 95,8 95,9 96,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,3 95,4 95,2 95,8 96,0 96,1 96,22/4 95,0 95,1 94,9 95,8 96,0 96,1 96,24/4 96,2 96,3 96,1 96,5 96,7 96,8 96,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,3 96,4 96,2 96,7 96,9 96,9 97,02/4 96,1 96,2 96,0 96,7 96,9 96,9 97,0

SHORT CIRCUIT RATIO 0,53 0,58 0,66 0,46 0,50 0,53 0,56REACTANCES (%)Direct axis synchronous xd 250 230 205 290 265 250 240Quadrature axis synchronous xq 145 130 115 165 150 140 135Direct axis transient x'd 25,2 23,0 20,3 29,1 26,7 25,0 24,0Direct axis subtransient x"d 11,4 10,4 9,2 13,2 12,1 11,3 10,8Quadrature axis subtransient x"q 11,8 10,8 9,6 13,7 12,5 11,8 11,3Negative sequence x2 11,6 10,6 9,4 13,4 12,3 11,5 11,1Zero sequence x0 3,2 2,9 2,6 3,7 3,4 3,2 3,0

TIME CONSTANTS [s]Open circuit (T'do) 3,00 Subtransient (T''d) 0,014Transient (T'd) 0,28 Armature (Ta) 0,04

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 5100Inertia (J) (IM B34) [kgm2] 88,9Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 2,0 / 2,5Degree of protection IP 23Type of construction available B3Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 0,72Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-1000 min-1 / 60 Hz-1200 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 LA 66 POLES

6050

RATING

V

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

SIN.DT.060.3 300

Typical efficiency curves 50 Hz - 1000 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 LA 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.060.3 301

Typical efficiency curves 60 Hz - 1200 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 LA 6

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.060.3 302

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 1000 min-1

60 Hz - 1200 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 500 LA 6

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000 7000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 1000 2000 3000 4000 5000 6000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.060.3 303

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 240 240 230 274 281 288 300kW 192 192 184 219 225 230 2404/4 91,4 91,5 91,4 91,6 91,8 91,9 92,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 91,5 91,6 91,5 92,0 92,2 92,3 92,42/4 91,1 91,2 91,1 92,0 92,2 92,3 92,44/4 93,2 93,2 93,2 93,3 93,5 93,6 93,6

EFFICIENCY (%) @ 1,0 p.f. 3/4 93,3 93,3 93,3 93,6 93,8 93,9 94,02/4 92,9 93,0 92,9 93,6 93,8 93,9 94,0

SHORT CIRCUIT RATIO 0,43 0,48 0,54 0,38 0,41 0,44 0,46REACTANCES (%)Direct axis synchronous xd 315 285 250 360 330 310 295Quadrature axis synchronous xq 175 160 140 200 185 170 165Direct axis transient x'd 40,9 37,0 32,9 46,8 42,9 40,2 38,5Direct axis subtransient x"d 20,2 18,3 16,3 23,1 21,2 19,9 19,0Quadrature axis subtransient x"q 21,2 19,1 17,0 24,2 22,2 20,8 19,9Negative sequence x2 20,7 18,7 16,6 23,7 21,7 20,3 19,5 Zero sequence x0 6,0 5,4 4,8 6,8 6,3 5,9 5,6

TIME CONSTANTS [s]Open circuit (T'do) 1,48 Subtransient (T''d) 0,018Transient (T'd) 0,18 Armature (Ta) 0,019

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 1450Inertia (J) (IM B34) [kgm2] 13,5Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,0 / 1,25Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 0,0196Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-750 min-1 / 60 Hz-900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SA 88 POLES

6050

RATING

V

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

SIN.DT.070.4 304

Typical efficiency curves 50 Hz - 750 min-1

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SA 8

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.070.4 305

Typical efficiency curves 60 Hz - 900 min-1

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SA 8

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.070.4 306

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 750 min-1

60 Hz - 900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 SA 8

0

10

20

30

40

50

60

0 100 200 300 400 500 600 700 800 900

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

60

0 100 200 300 400 500 600 700

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.070.4 307

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 305 310 300 364 374 384 400kW 244 248 240 291 299 307 3204/4 91,9 92,0 91,9 92,1 92,3 92,4 92,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,0 92,1 92,0 92,5 92,7 92,8 92,92/4 91,6 91,8 91,6 92,5 92,7 92,8 92,94/4 93,6 93,6 93,6 93,7 93,9 94,0 94,0

EFFICIENCY (%) @ 1,0 p.f. 3/4 93,7 93,7 93,7 94,0 94,2 94,3 94,32/4 93,4 93,4 93,4 94,0 94,2 94,3 94,3

SHORT CIRCUIT RATIO 0,45 0,49 0,55 0,38 0,41 0,44 0,46REACTANCES (%)Direct axis synchronous xd 310 285 255 370 340 320 305Quadrature axis synchronous xq 170 160 140 205 190 175 170Direct axis transient x'd 52,1 47,8 43,0 62,3 57,2 53,7 51,4Direct axis subtransient x"d 19,3 17,7 15,9 23,1 21,2 19,9 19,0Quadrature axis subtransient x"q 20,2 18,5 16,7 24,2 22,2 20,8 19,9Negative sequence x2 19,7 18,1 16,3 23,6 21,6 20,3 19,5Zero sequence x0 5,5 5,1 4,6 6,6 6,1 5,7 5,4

TIME CONSTANTS [s]Open circuit (T'do) 1,57 Subtransient (T''d) 0,018Transient (T'd) 0,19 Armature (Ta) 0,019

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 1600Inertia (J) (IM B34) [kgm2] 16,2Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,0 / 1,25Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 0,0147Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-750 min-1 / 60 Hz-900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SB 88 POLES

RATING

V

6050

(under no-load or non-distorting-load

>= 250%+/- 0,5%

EN 55011

SIN.DT.071.4 308

Typical efficiency curves 50 Hz - 750 min-1

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SB 8

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.071.4 309

Typical efficiency curves 60 Hz - 900 min-1

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SB 8

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.071.4 310

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

MJB 400 SB 8THREE-PHASE SYNCHRONOUS GENERATOR

50 Hz - 750 min-1

60 Hz - 900 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

70

0 200 400 600 800 1000 1200

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

60

70

0 100 200 300 400 500 600 700 800 900

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.071.4 311

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 350 360 350 410 421 432 450kW 280 288 280 328 337 346 3604/4 92,2 92,3 92,2 92,4 92,6 92,7 92,8

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,3 92,4 92,3 92,8 93,0 93,1 93,22/4 92,0 92,1 92,0 92,8 93,0 93,1 93,24/4 93,8 93,9 93,8 94,0 94,1 94,2 94,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 93,9 94,0 93,9 94,3 94,4 94,5 94,62/4 93,6 93,7 93,6 94,3 94,4 94,5 94,6

SHORT CIRCUIT RATIO 0,45 0,48 0,53 0,38 0,41 0,44 0,46REACTANCES (%)Direct axis synchronous xd 305 285 255 360 330 310 295Quadrature axis synchronous xq 170 160 145 200 185 175 165Direct axis transient x'd 37,7 35,0 31,6 44,2 40,6 38,1 36,5Direct axis subtransient x"d 19,8 18,4 16,6 23,2 21,3 20,0 19,2Quadrature axis subtransient x"q 20,7 19,2 17,3 24,3 22,3 20,9 20,0Negative sequence x2 20,3 18,8 17,0 23,8 21,8 20,5 19,6Zero sequence x0 5,4 5,0 4,5 6,3 5,8 5,4 5,2

TIME CONSTANTS [s]Open circuit (T'do) 1,64 Subtransient (T''d) 0,018Transient (T'd) 0,19 Armature (Ta) 0,02

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 1800Inertia (J) (IM B34) [kgm2] 19,1Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,0 / 1,25Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 0,0098Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-750 min-1 / 60 Hz-900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SC 88 POLES

6050

RATING

V

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

SIN.DT.072.3 312

Typical efficiency curves 50 Hz - 750 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SC 8

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.072.3 313

Typical efficiency curves 60 Hz - 900 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 SC 8

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.072.3 314

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 750 min-1

60 Hz - 900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 SC 8

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

60

0 100 200 300 400 500 600 700 800 900 1000

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.072.3 315

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 420 430 420 490 503 516 540kW 336 344 336 392 402 413 4324/4 92,4 92,5 92,4 92,6 92,8 92,9 93,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 92,5 92,6 92,5 93,0 93,2 93,2 93,32/4 92,2 92,3 92,2 93,0 93,2 93,2 93,34/4 94,0 94,0 94,0 94,1 94,3 94,4 94,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,1 94,1 94,1 94,4 94,6 94,6 94,72/4 93,8 93,9 93,8 94,4 94,6 94,6 94,7

SHORT CIRCUIT RATIO 0,44 0,48 0,53 0,38 0,41 0,44 0,46REACTANCES (%)Direct axis synchronous xd 300 275 250 350 320 300 290Quadrature axis synchronous xq 170 155 140 195 180 170 160Direct axis transient x'd 35,7 33,0 29,9 41,7 38,3 35,9 34,5Direct axis subtransient x"d 18,6 17,2 15,6 21,7 20,0 18,7 18,0Quadrature axis subtransient x"q 19,5 18,0 16,3 22,8 20,9 19,6 18,8Negative sequence x2 19,0 17,6 16,0 22,3 20,4 19,2 18,4Zero sequence x0 5,2 4,8 4,4 6,1 5,6 5,2 5,0

TIME CONSTANTS [s]Open circuit (T'do) 1,70 Subtransient (T''d) 0,018Transient (T'd) 0,2 Armature (Ta) 0,02

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2000Inertia (J) (IM B34) [kgm2] 20,6Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,0 / 1,25Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase)Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

6050

0,00687

>= 250%

(under no-load or non-distorting-load

50 Hz-750 min-1 / 60 Hz-900 min-1

RATING

V

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 88 POLES

+/- 0,5%

EN 55011

SIN.DT.073.3 316

Typical efficiency curves 50 Hz - 750 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MA 8

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

89

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.073.3 317

Typical efficiency curves 60 Hz - 900 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

MJB 400 MA 8THREE-PHASE SYNCHRONOUS GENERATOR

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

88

90

92

94

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.073.3 318

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

50 Hz - 750 min-1

60 Hz - 900 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 MA 8

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400 1600

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.073.3 319

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 510 510 500 581 597 612 640kW 408 408 400 465 478 490 5124/4 92,9 93,0 92,9 93,1 93,3 93,4 93,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,0 93,1 93,0 93,4 93,6 93,7 93,82/4 92,7 92,8 92,7 93,4 93,6 93,7 93,84/4 94,4 94,4 94,4 94,5 94,7 94,8 94,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,5 94,5 94,5 94,8 95,0 95,0 95,12/4 94,2 94,3 94,2 94,8 95,0 95,0 95,1

SHORT CIRCUIT RATIO 0,47 0,52 0,57 0,41 0,45 0,48 0,50REACTANCES (%)Direct axis synchronous xd 295 265 240 335 310 290 275Quadrature axis synchronous xq 165 150 135 190 175 165 160Direct axis transient x'd 35,3 31,9 29,1 40,3 37,0 34,7 33,4Direct axis subtransient x"d 18,3 16,5 15,1 20,9 19,2 18,0 17,3Quadrature axis subtransient x"q 19,1 17,3 15,7 21,8 20,0 18,8 18,1Negative sequence x2 18,6 16,8 15,3 21,3 19,5 18,3 17,6Zero sequence x0 5,3 4,8 4,3 6,0 5,5 5,2 5,0

TIME CONSTANTS [s]Open circuit (T'do) 1,78 Subtransient (T''d) 0,018Transient (T'd) 0,21 Armature (Ta) 0,02

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2260Inertia (J) (IM B34) [kgm2] 22,4Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,0 / 1,25Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 0,0044Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

6050

RATING

V

50 Hz-750 min-1 / 60 Hz-900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 88 POLES

SIN.DT.074.3 320

Typical efficiency curves 50 Hz - 750 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 8

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.074.3 321

Typical efficiency curves 60 Hz - 900 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 MB 8

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.074.3 322

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 750 min-1

60 Hz - 900 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 MB 8THREE-PHASE SYNCHRONOUS GENERATOR

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400 1600 1800

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.074.3 323

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 600 600 590 684 702 720 750kW 480 480 472 547 562 576 6004/4 93,1 93,2 93,1 93,3 93,5 93,6 93,7

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,2 93,3 93,2 93,6 93,8 93,9 94,02/4 92,9 93,0 92,9 93,6 93,8 93,9 94,04/4 94,5 94,6 94,5 94,7 94,8 94,9 95,0

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,6 94,7 94,6 95,0 95,1 95,2 95,32/4 94,4 94,4 94,4 95,0 95,1 95,2 95,3

SHORT CIRCUIT RATIO 0,44 0,49 0,54 0,39 0,42 0,45 0,47REACTANCES (%)Direct axis synchronous xd 320 290 265 365 335 315 300Quadrature axis synchronous xq 175 160 145 200 185 170 165Direct axis transient x'd 37,6 33,9 31,0 42,9 39,4 37,0 35,4Direct axis subtransient x"d 19,0 17,1 15,6 21,6 19,9 18,6 17,8Quadrature axis subtransient x"q 19,8 17,8 16,3 22,6 20,7 19,4 18,6Negative sequence x2 19,3 17,4 15,9 22,0 20,2 18,9 18,1Zero sequence x0 5,4 4,9 4,4 6,1 5,6 5,3 5,1

TIME CONSTANTS [s]Open circuit (T'do) 1,84 Subtransient (T''d) 0,018Transient (T'd) 0,21 Armature (Ta) 0,019

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2530Inertia (J) (IM B34) [kgm2] 24,1Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,0 / 1,25Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 0,0034Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-750 min-1 / 60 Hz-900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 88 POLES

RATING

V

6050

(under no-load or non-distorting-load

>= 250%+/- 0,5%

EN 55011

SIN.DT.075.3 324

Typical efficiency curves 50 Hz - 750 min-1

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 8

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.075.3 325

Typical efficiency curves 60 Hz - 900 min-1

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LA 8

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.075.3 326

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

MJB 400 LA 8THREE-PHASE SYNCHRONOUS GENERATOR

50 Hz - 750 min-1

60 Hz - 900 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

60

0 200 400 600 800 1000 1200 1400 1600 1800

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.075.3 327

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 740 740 730 844 866 888 925kW 592 592 584 675 693 710 7404/4 93,4 93,5 93,4 93,6 93,8 93,9 94,0

EFFICIENCY (%) @ 0,8 p.f. 3/4 93,5 93,6 93,5 93,9 94,1 94,2 94,32/4 93,2 93,3 93,2 93,9 94,1 94,2 94,34/4 94,8 94,8 94,8 94,9 95,1 95,2 95,3

EFFICIENCY (%) @ 1,0 p.f. 3/4 94,9 94,9 94,9 95,2 95,3 95,4 95,52/4 94,6 94,7 94,6 95,2 95,3 95,4 95,5

SHORT CIRCUIT RATIO 0,44 0,49 0,53 0,39 0,42 0,45 0,47REACTANCES (%)Direct axis synchronous xd 315 285 260 360 330 310 295Quadrature axis synchronous xq 175 160 145 200 185 170 165Direct axis transient x'd 36,8 33,2 30,4 42,0 38,6 36,2 34,6Direct axis subtransient x"d 18,8 17,0 15,6 21,5 19,7 18,5 17,7Quadrature axis subtransient x"q 20,0 18,1 16,6 22,9 21,0 19,7 18,8Negative sequence x2 19,4 17,5 16,1 22,2 20,3 19,1 18,2Zero sequence x0 5,4 4,9 4,4 6,1 5,6 5,3 5,1

TIME CONSTANTS [s]Open circuit (T'do) 1,95 Subtransient (T''d) 0,018Transient (T'd) 0,22 Armature (Ta) 0,02

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6324 C3 / With grease nippleN-end bearing/Lubrication 6318 Z C3 / PrelubricatedWeight (IM B34) [kg] 2750Inertia (J) (IM B34) [kgm2] 25,4Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,0 / 1,25Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 0,0039Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

6050

RATING

V

50 Hz-750 min-1 / 60 Hz-900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 88 POLES

SIN.DT.076.3 328

Typical efficiency curves 50 Hz - 750 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 8

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.076.3 329

Typical efficiency curves 60 Hz - 900 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 400 LB 8

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

90

91

92

93

94

95

96

0 0,25 0,5 0,75 1 1,25Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.076.3 330

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 400 LB 8

50 Hz - 750 min-1

60 Hz - 900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.076.3 331

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 820 820 810 935 959 984 1025kW 656 656 648 748 767 787 8204/4 94,4 94,5 94,3 94,7 94,9 95,0 95,1

EFFICIENCY (%) @ 0,8 p.f. 3/4 94,5 94,6 94,4 95,0 95,2 95,2 95,32/4 94,2 94,3 94,1 95,0 95,2 95,2 95,34/4 95,6 95,7 95,5 95,8 96,0 96,1 96,1

EFFICIENCY (%) @ 1,0 p.f. 3/4 95,6 95,7 95,6 96,0 96,2 96,2 96,32/4 95,4 95,5 95,3 96,0 96,2 96,2 96,3

SHORT CIRCUIT RATIO 0,52 0,58 0,63 0,46 0,50 0,53 0,56REACTANCES (%)Direct axis synchronous xd 300 270 250 340 315 295 280Quadrature axis synchronous xq 155 140 130 175 160 150 145Direct axis transient x'd 33,2 30,0 27,5 38,0 34,8 32,7 31,3Direct axis subtransient x"d 15,5 14,0 12,8 17,7 16,2 15,2 14,6Quadrature axis subtransient x"q 16,2 14,6 13,4 18,5 16,9 15,9 15,2Negative sequence x2 15,8 14,3 13,1 18,1 16,6 15,6 14,9Zero sequence x0 4,7 4,2 3,9 5,3 4,9 4,6 4,4

TIME CONSTANTS [s]Open circuit (T'do) 2,30 Subtransient (T''d) 0,012Transient (T'd) 0,24 Armature (Ta) 0,033

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 3200Inertia (J) (IM B34) [kgm2] 55,1Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,67 / 2,17Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 3,4Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

6050

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SA 88 POLES

50 Hz-750 min-1 / 60 Hz-900 min-1

RATING

V

SIN.DT.077.3 332

Typical efficiency curves 50 Hz - 750 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SA 8

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.077.3 333

Typical efficiency curves 60 Hz - 900 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SA 8

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.077.3 334

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

50 Hz - 750 min-1

60 Hz - 900 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 500 SA 8

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.077.3 335

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1020 1020 1010 1163 1193 1224 1275kW 816 816 808 930 954 979 10204/4 94,9 95,0 94,8 95,1 95,3 95,4 95,5

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,0 95,1 94,9 95,3 95,5 95,6 95,72/4 94,7 94,8 94,6 95,3 95,5 95,6 95,74/4 96,0 96,1 95,9 96,1 96,3 96,4 96,4

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,0 96,1 96,0 96,3 96,5 96,6 96,62/4 95,8 95,9 95,8 96,3 96,5 96,6 96,6

SHORT CIRCUIT RATIO 0,54 0,60 0,65 0,47 0,52 0,55 0,58REACTANCES (%)Direct axis synchronous xd 265 240 220 305 280 260 250Quadrature axis synchronous xq 145 130 120 165 150 140 135Direct axis transient x'd 28,8 26,0 23,9 32,9 30,2 28,3 27,1Direct axis subtransient x"d 13,0 11,7 10,8 14,8 13,6 12,7 12,2Quadrature axis subtransient x"q 13,3 12,0 11,0 15,2 13,9 13,1 12,5Negative sequence x2 13,1 11,8 10,9 14,9 13,7 12,8 12,3Zero sequence x0 3,5 3,2 2,9 4,0 3,7 3,5 3,3

TIME CONSTANTS [s]Open circuit (T'do) 2,20 Subtransient (T''d) 0,011Transient (T'd) 0,23 Armature (Ta) 0,033

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 3800Inertia (J) (IM B34) [kgm2] 74,2Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,67 / 2,17Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 2,3Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-750 min-1 / 60 Hz-900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SC 88 POLES

6050

RATING

V

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

SIN.DT.078.4 336

Typical efficiency curves 50 Hz - 750 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SC 8

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.078.4 337

Typical efficiency curves 60 Hz - 900 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 SC 8

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

91

92

93

94

95

96

97

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

] 1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.078.4 338

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 750 min-1

60 Hz - 900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 500 SC 8

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

)

416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000

∆P [kVA]

Volta

ge D

ip (%

)

380 V400 V415 V

SIN.DT.078.4 339

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1270 1270 1300 1448 1486 1524 1590kW 1016 1016 1040 1158 1189 1219 12724/4 95,0 95,1 94,9 95,2 95,4 95,5 95,6

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,1 95,2 95,0 95,4 95,6 95,7 95,82/4 94,8 94,9 94,7 95,4 95,6 95,7 95,84/4 96,1 96,1 96,0 96,2 96,4 96,4 96,5

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,1 96,2 96,0 96,4 96,6 96,6 96,72/4 95,9 96,0 95,8 96,4 96,6 96,6 96,7

SHORT CIRCUIT RATIO 0,53 0,58 0,61 0,46 0,50 0,53 0,56REACTANCES (%)Direct axis synchronous xd 260 235 225 295 275 255 245Quadrature axis synchronous xq 140 125 120 160 145 135 130Direct axis transient x'd 27,5 24,8 23,6 31,4 28,8 27,0 25,9Direct axis subtransient x"d 13,3 12,0 11,4 15,2 13,9 13,1 12,5Quadrature axis subtransient x"q 12,6 11,4 10,8 14,4 13,2 12,4 11,9Negative sequence x2 12,9 11,6 11,0 14,7 13,5 12,6 12,1Zero sequence x0 5,8 5,2 4,9 6,6 6,0 5,7 5,4

TIME CONSTANTS [s]Open circuit (T'do) 2,10 Subtransient (T''d) 0,014Transient (T'd) 0,23 Armature (Ta) 0,034

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 4400Inertia (J) (IM B34) [kgm2] 82,2Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,67 / 2,17Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 1,5Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

50 Hz-750 min-1 / 60 Hz-900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 MB 88 POLES

RATING

V

6050

SIN.DT.079.3 340

Typical efficiency curves 50 Hz - 750 min-1

380 V

400 V

415 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 MB 8

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.079.3 341

Typical efficiency curves 60 Hz - 900 min-1

416 V

440 V

460 V

480 V

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 MB 8

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.079.3 342

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

50 Hz - 750 min-1

60 Hz - 900 min-1

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 500 MB 8

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000 4500

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.079.3 343

CONTINUOUS DUTY

AMBIENT TEMPERATURE 40°C WINDING DATA TEMPERATURE RISE H Winding code 80INSULATION CLASS H Number of leads 6

POWER FACTOR 0,8 Winding pitch 2/3

FREQUENCY HzVOLTAGE Star 380 400 415 416 440 460 480

Delta 220 230 240 240 254 265 277kVA 1500 1500 1480 1710 1755 1800 1875kW 1200 1200 1184 1368 1404 1440 15004/4 95,1 95,2 95,0 95,5 95,7 95,8 95,9

EFFICIENCY (%) @ 0,8 p.f. 3/4 95,2 95,3 95,1 95,7 95,9 96,0 96,12/4 94,9 95,0 94,8 95,7 95,9 96,0 96,14/4 96,1 96,2 96,1 96,4 96,6 96,7 96,8

EFFICIENCY (%) @ 1,0 p.f. 3/4 96,2 96,3 96,1 96,6 96,8 96,9 96,92/4 96,0 96,1 95,9 96,6 96,8 96,9 96,9

SHORT CIRCUIT RATIO 0,59 0,65 0,71 0,51 0,56 0,60 0,62REACTANCES (%)Direct axis synchronous xd 330 300 275 380 350 325 315Quadrature axis synchronous xq 190 170 155 215 195 185 175Direct axis transient x'd 37,7 34,0 31,2 43,0 39,5 37,0 35,4Direct axis subtransient x"d 18,8 17,0 15,6 21,5 19,7 18,5 17,7Quadrature axis subtransient x"q 19,7 17,8 16,3 22,5 20,7 19,4 18,5Negative sequence x2 19,3 17,4 15,9 22,0 20,2 18,9 18,1Zero sequence x0 6,9 6,2 5,7 7,8 7,2 6,8 6,5

TIME CONSTANTS [s]Open circuit (T'do) 2,40 Subtransient (T''d) 0,014Transient (T'd) 0,24 Armature (Ta) 0,037

MECHANICAL CHARACTERISTICSD-end bearing/Lubrication 6328 C3 / With grease nippleN-end bearing/Lubrication 6326 C3 / With grease nippleWeight (IM B34) [kg] 5100Inertia (J) (IM B34) [kgm2] 95Overspeed [min -1] 1500Method of cooling IC 01Cooling air required [m3/s] @ 50/60 Hz 1,67 / 2,17Degree of protection IP 23Type of construction available B2 - SAE / IM B34Direction of rotation CW

OTHER DATAPhase resistance [m Ω] @ 20 °C (per phase) 1,0Overloads 10% for 1 hour3-phase short circuit current InVoltage regulation accuracy (in steady state condition,

speed from -2% to +5%, p.f. from 0,8 to 1)Radio interference Class B Group 1Wave form THF < 5%Total harmonic content < 3%

condition)

STANDARDSIEC 60034-1; CEI 2-3; BS 4999-5000; VDE 0530; NF 51-100,111; OVE M-10; NEMA MG 1.22.

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz-750 min-1 / 60 Hz-900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 LA 88 POLES

6050

RATING

V

>= 250%+/- 0,5%

EN 55011

(under no-load or non-distorting-load

SIN.DT.080.3 344

Typical efficiency curves 50 Hz - 750 min-1

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 LA 8

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.080.3 345

Typical efficiency curves 60 Hz - 900 min-1

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

THREE-PHASE SYNCHRONOUS GENERATOR

MJB 500 LA 8

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

92

93

94

95

96

97

98

0 0,25 0,5 0,75 1 1,25

Load [p.u.]

Effic

ienc

y [%

]

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

1,0 p.f.

0,8 p.f.

SIN.DT.080.3 346

Locked rotor motor starting curves (*)

(*): A coefficient of 0,85 must be applied to the voltage dip if the load has a power factor equal or greater than 0,8

Data and Technical Specification are subject to change in order to update or improve the products, without prior notice

50 Hz - 750 min-1

60 Hz - 900 min-1

THREE-PHASE SYNCHRONOUS GENERATOR

∆ P = Pn x (Is / In) / (cosϕn x ηn)

MJB 500 LA 8

0

10

20

30

40

50

60

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

∆P [kVA]

Volta

ge D

ip (%

) 416 V

440 V

460 V

480 V

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000

∆P [kVA]

Volta

ge D

ip (%

) 380 V400 V415 V

SIN.DT.080.3 347

Marelli Motori S.p.a.

Via Sabbionara, 1

36071 Arzignano (VI) Italy

(T) +39.0444.479711

(F) +39.0444.479738

www.fki-et.com/mm

sales@marelli.fki-et.com

Branches

Milan

(T) +39.02.66013166

(F) +39.02.66013483

Florence

(T) +39.055.431838

(F) +39.055.433351

U S AFKI Marelli-USA1524 Lebanon RoadDanville, KY 40422 - USA(T) +1.859.236.6600(F) +1.859.236.8877e-mail: marellisales@fkilogistex.com

G E R M A N YFKI Marelli - Central EuropeHeilswannenweg 5031008 Elze - Germany(T) +49.5068.462-400(F) +49.5068.462-409e-mail: sales@marelli-ce.fki-et.com

S O U T H A F R I C AFKI Rotating Machines (Pty) LtdUnit 455 Activia Rd-Activia ParkElandsfontein, 1406GautengRepublic of South Africa(T) +27.11.8225566(F) +27.11.8288089e-mail: fki@iafrica.com

F R A N C EMarelli MotoriL’Atrium 4Rue du Colonel Chambonnet69500 Bron - France(T) +33.4.78602502(F) +33.4.78602737e-mail: sales@marelli.fki-et.com

G R E A T B R I T A I NAMCO MARELLI LtdMeadow LaneLoughboroughLeicesterLE 11 1NB(T) +44 1509.615518(F) +44 1509.615514e-mail: sales@amco.fki-et.com

A S I A P A C I F I CFKI Energy Technology AP Sdn BhdLot 7, Jalan Majistret U1/26Hicom - Glenmarie Industrial Park40150 Shah AlamSelangor D.E., Malaysia(T) +60.3.7805.3736(F) +60.3.7803.9625e-mail: fkiasia@po.jaring.my

Gra

fich

e M

arco

lin S

chio

20

55

S I N . C T. 0 2 7 .0

MarelliGenerators®

MARELLIGENERATORS reserves the right to change the design, technical specificat MARELLI MOTORI si riserva il diritto di modificare il progetto, le caratteristiche tecniche e le dimensioni per aggiornare e migliorare i propri prodotti, senza alcun preavviso.