electrical - electrical engineering pocketbook handbook - koffler - 1993

çKoFFLERElectricol Mechonicol Apporolus Repoir, lnc522 Whitney Street - Son Lecndro, CA9457 /

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FOREWORD

This booklet, which was produced by theElectrical Apparatus Service Association,was provided to you by an EASA member,It contains carefully selected engineeringreference information designed to assistyou in your everyday work.

EASA is an international trade organizationcomprised of electro-mechanical repairfirms throughout the world. Through itsmany engineering and educationalprograms, EASA provides members with ameans of keeping up-to-date on materials,equi pment and state-of -the-art technology.

You're in the right hands when you selectan electro-mechanical service centerdisplaying the EASA emblem to performyour electrical service and repair work. TheEASA emblem is a symbol of qualityworkmanship and performance throughoutthe service industry.

The information in this booklet has beencarefully prepared and is believed to becorrect, but EASA makes no warrantiesrespecting it and disclaims anyresponsibility or liability of any kind for anyloss or damage as a consequence ofanyone's use or reliance upon suchinformation.

Comments or questions on any data in thisbooklet may be directed to your local EASAservice center or to the Electrical ApparatusService Association, lnc., 1331 Baur Blvd.,St. Louis, Missouri 631 32.

Copyright @ 1993, Electrical ApparatusService Association.

4952ooM

TABLE OF CONTENTSMOTOB DATA-ELECTRICAL

Terminal Markings and ConnectionsThree-Phase Motors, 6 Leads .

Three-Phase N¡otors, I Leads .

Three-Phase Motors. 12 Leads

PAGE

234

Three-Phase Molors, Two Speec ......IEC Three-Phase Motors. Two SpeeoSingle-Phase Motors, .. . .. ID-C Motors ..... .. ... 10D-C Generators 11FieldPolariliesD-CMachines., ..12

Full-Load Currents: D-C Motors ... . . . 13Three-Phase N¡otors. . .. . 14Synchronous [¡otors. ... ......... .15Single-Phase ¡,4otors ...... ..........15

Locked-Rotor Currents. Three-Phase Motors ...................................16NEMA Code Lelters. A-C Motors . .. .. ..17

.tä;.t::,,..,,,....'i!M.r.HDATA-ME.HANT.AL

." """"24Shaft Dimensions: NEMA D-C Moiors & Generators .. . ..... . ..25Frame Dimensions: NEMA D-C Motors & Generators... .. ...... .......26

IEC Foot-Mounteci Three-Phase Motors. ......... 28NEMA Foot-Mounted A-C Motors & Generators. . 30, NEMA Type C Face-Mounted A-C Motors...... . 34NEMATypeDF .....36NEMA lpes Jl,4 i.s..38

Frame Ass¡gnments: NEMA Three-P .....42NEMA Three-P .....44

CONTRACTORSPower Factor lmprovement .. . .. .. . . .. 46Starters; NEMA S¡zes. Three Phase 48StarterEnclosures, .49Starters: NEMA Sizes. Srngle Phase ......................50Conductors in a Conduit, Dérating Fac10rs....................,...................50Ampac¡ties of lnsulated Conductors....... ..................51Conduclors in a Condu¡l, Max¡mum Number ... ... . .... . .55Motor Protective Devices. Maximum Setting .. . . .... 58

TRANSFORMERSTransformer KVA Rating and Copper Conductor Si2e.......................59Transformer Connections..... ...........60Full-Load Currents: Three-Phase Transformers ... .. .... .. . .. . . 70

Single-Phase Transformers 71ELECTRONICS

Semiconductor Symbols and Conneclìons ... .. .72Transistor Symbols and Connections . . . . .. . .... -. ... ..73Resistor Color Codes .. . .. . .. .74Capac¡tor Color Codes . .75

FORMULASConversion FactoÍs . . .. ....76Miscellaneous Formulas. .. . .79Temperature Conversion Table . . ...... 81

MISCELLANEOUS

Tap Dr¡ils and Clearance Drills lor Machrne ScrewsGlossary oí Terlrs

INDEX

IEC Three-Phase Motors, 6 and i 2 Lead

8486ÒJ

88899092

TERMINAL MARKINGS AND CONNECTIONSFOR NEMA SINGLE-SPEED,THREE-PHASE MOTORS-6 LEADS

SINGLE VOLTAGEEXTERNALY-CONNECTION

TERMINAL MARKINGS AND CONNECTIONSFOR NEMA SINGLE-SPEED,THREE-PHASE MOTORS-g LEADS

1

4

L1 L2 L3 JOIN1 2 3 4&5&6

SINGLE VOLTAGEEXTERNALDELTA.CONNECTION

DUAL VOLTAGEY.CONNECTED

DUAL VOLTAGEDELTA.CONNECTED

4

SINGLE AND DUAL VOLTAGESTAR.DELTA CON N ECTIONS

L1 L2 L31,6 2,4 3,5

VOLTAGE L1 L2 L3 JOINLOW 1,7 2,8 3,9 4&5&6HIGH 1 2 3 4&7,5&8,6&9

SINGLEVOLTAGE

Y-CONNECTED STARTDELTA-CONNECTED RUN

DUALVOLTAGE

Y-DELTA-CONNECTED(VOLTAGE RATTO 1.732 to 1)

CONN. L1 L2 L3 JOINY START OR HIGH VOLTAGE 1 2 3 4&5&6DELTA RUN OR LOW VOLTAGE 1,6 2,4 3,5

VOLTAGE L1 L2 L3 JOINLOW 1,6,7 2,4,8 3,5,9HIGH 1 2 3 4&7,5&8,6&9

TERMINAL MARKINGS AND CONNECT¡ONS

FOR NEMA SINGLE-SPEED,THREE-PHASE MOTORS-1 2 LEADS

TERMINAL MARKINGS AND CONNECTIONSFOR IEC SINGLE-SPEED, THREE-PHASEMOTORS-6 AND 12 LEADS

DUAL VOLTAGEEXTERNALY-CONNECTION

\u^\z6s/

;l

,ãl12s/

U1 U2

1l4l7l

rol12 11

as./ \8 5s/ \2DUAL VOLTAGEY.CONNECTED STARTDELTA.CONNECTED RUN

-:/\,

U1 U2 U5 U6

VOLTAGE L1 L2 L3 JOIN

LOW 1,7 2,8 39 4&5&6.10&1 1&12

HIGH 1 2 3 4&7,5&8,6&9,10&11&12

SINGLE AND DUALVOLTAGESTAR.DELTA CONNECTIONSSINGLEVOLTAGE

Y.CONNECTED STARTDELTA.CONNECTED RUN

DUALVOLTÂGE

Y.DELTA-CONNECTED(VOLTAGE RATIO 1.732 to 1)

È2DUAL VOLTAGEY.CONNECTED STARTDELTA.CONNECTED RUN

CONNECÏON L1 12 L3 JOIN

STAR U1 V1 w1 u2&v2&w2DELTA u1 &w2 V1 &U2 w1 &v2 None

4&5&6,10&11

10&11&12

4&7,5&8,6&9

úOITAGE iUNNÈU I IU¡ L1 L2 L3 JON

LOW JI AH ut&u5 V1 &V5 w1&w5 LJ2&V2&W2&U6&v6&w6

DELTA u1 &u5&W2&W6

v1 &v5&U2&U6

w1&w5&V2&V6

None

HGH STAR U1 V1 W1 u2&u5,v2ev5,w2&w5,u6&V6&W6

]ELTA U1&W6 V1 &U6 w1&v6 u2&u5,v2&v5,w2&w5

TERMINAL MARKINGS AND CONNECTIONSFOR NEMA TWO-SPEED, THREE-PHASEMOTORS, SINGLE WINDING WITH 6 LEADS

TERMINAL MARKINGS AND CONNECTIONSFOR IEC TWO-SPEED, THREE.PHASEMOTORS, SINGLE WINDING WITH 6 LEADS

CONSTANT TOROUECONNECTIONLow-speed horsepower is halfof high-speed horsepower.*

CONSTANT HORSEPOWERCONNECTIONHorsepower is the same at both speeds.'

CONSTANT TORQUECONNECTION

VARIABLE TOROUECONNECTIONLow-speed horsepower is one fourthof high-speed horsepower.*

TCAUTION: On European motors horsepower variance with spec'

VARIABLE ToRQUECONNECT¡ON

SPEED L1 L2 L3IYPIUALCONNECTION

HIGH 6 4 5 1&2&3 JO|N 2Y

LOW 1 2 3 4-s-6 0PEN 1 DELTA

SPEED L1 L2 L3TYPICALCONNECTION

HIGH 2W 2U 2V 1U-1V-1W JOIN 2YLOW 1U 1V 1W 2U-2V-2W OPEN 1 DELTA


HIGH 6 4 5 1-2-3 oPEN 1 DELTA

LOW 1 2 3 4&5&6 JOIN 2Y

SPEED L1 t2 L3

HIGH 6 4 5 1&2&3 JO|N 2Y

1YLOW 1 2 3 4-s-6 oPEN


HIGH 2W 2U 2V 1U-lV-1W JOIN 2YLOW 1U 1V 1W 2U-2V-2W OPEN 1Y

may not be the same as shown above.

TERMINAL MARKINGS AND CONNECTIONSFOR NEMA CAPACITOR-START,SINGLE-PHASE MOTORS

MAIN (RUN)WINDINGL4

TERMINAL MARKINGS AND CONNECTIONSFOR NEMA CAPACITOR-START,SINGLE-PHASE MOTORS

DUAL VOLTAGE(MArN & AUXtL|ARYWINDING)Capacitors in auxilliarywindings are rated forlower voltage. MAIN (RUN)

4I

AUXTLTARY (STABT) WtND¡NG

The switch in the auxiliary winding circuit has been omitted fromthis diagram. The connections to the switch must be made so thatboth auxiliary windings become de-energized when the switch isopen.

ROTATION : CCW-Counter-ClockwiseCW-Clockwise

The direction of shaft rotation can be determined by facing the endof the motor oppos¡te the drive.

IERMINAL MARKINGS IDENTIFIED BY COLOR:1-Blue S-Black P1-No color assignedz-White 6-No color assigned P2-Brown3-Orange 7-No color assigned4-Yellow 8-Red

NEMA Standards MG1-2.41

P2

1

SINGLE VOLTAGE

DUAL VOLTAGE(MA|N W|ND|NG ONLY)Auxiliary winding is always at lowvoltage rating; capacitorshould be rated accordingly.

ROTATION L1 L2ccw 1,8 4,5

CW 1,5 4,8L1 L2 JOIN

HIGHVOLTAGE

ccw 1,8 4,5 2&3,6&7

CW 1,5 4,8 2&3,6&7

LOWVOLTAGE

ccw 1,3,6,8 2,4,5,7

CW 1,3,5,7 2,4,6,8

ROTATION L1 L2

HIGHVOLTAGE

ccw 1 4,5

CW 1 4,8 2&3&5-

LOWVOLTAGE

ccw 1,3,8 2,4,5

cw 1,3,5 2,4,8

TERMINAL MARKINGS AND CONNECTIONSFOR NEMA D-C MOTORS

SERIESFIELD

51 52

TERMINAL MARKINGS AND CONNECTIONSFOR NEMA D-C GENERATORS

SHUNT GENERATOR

COMPOUND GENERATOR

All connections are for counterclockwise rotatìon facing end opPo-site drive. For clockwise rotation, interchange A1 and 42.

Some manufacturers connect the interpole winding on the A2 side

of armature.

When shunt field is separately excited, same polarities musl þe

observed for a given rotation.

All connections are for counterclockwise rotation facing end oppo-site drive. For clockwise rotation, interchange Al and 42.Some manufacturers connect the interpole winding on the A2 sideof armature.

SHUNT FIELD

SHUNT MOTOR

COMPOUND MOTOR

SERIESFlELD

-F2

SERIESFIELD

11

RELATIONSHIP OF MAIN AND INTERPOLEPOLARITIES IN D.C MACHINES

FULL.LOAD CURRENTSDI RECT-CURRENT MOTORS'(RUNNING AT BASE SPEED)

INTERPOLE(coMMUTAT|NG POLE)

*For conductor sizing only.

HP

ARMATURE VOLTAGE RATING t90v 120V 180V 240V 500v 550V

1/q

1/.

1/z

"/4

4.05.2

6.896

3.1

4.1

5.47.6

2.02.6344.8

1.6

2.02.73.8

1

11/z

2

122 9513217

6.1

8.310.8

4.76.68.5

3571/z

254058

16

2739

1222029 't3.6 122

10152025

76 51 38557289

18273443

16243138

3040506075

106140173206255

51678399

123

46617590

111

100125150200

341425506675

164205246330

148185222294

tll-)oùz4

Over 200 HPApprox. Amps/HP

Diagram shows polar¡ty of interpoles with respect to the polarity of

the main poles.

For a MOTOR, the polarity of the interpole is the same as that of the

main pole PRECEDING it in the direction of rotation.

For a GENERATOR, the polarity of the interpole ¡s the same as that

of the main pole FOLLOWING it in the direction of rotation.

3.4 1.7 1.5TThese are average direct-current quantities. Branch-circuit

conductors supplying a single motor shall have an ampacitynot less than 125 percent of the motor full-load currentrating.

Armature Current Varies lnversely as Applied Voltage.Example: 40 HP Motor, 300 Volt Armature

ARMATURE CURRENT: 140 x ffi: r12 AMPS

Based on Table 430-147 of the National Electrical Code,@1 993.National Electrical Codeo and NECto are registered trade-marks of the National F¡re Protection Association, lnc.,Quincy, MA 02269.

13

FULL.LOAD CURRENTSTHREE-PHASE A-C INDUCTION TYPE-SQUIRREL CAGE AND WOUND ROTOR MOTORS-

FULL-LOAD CURRENTSTHREE-PHASE SYNCHRONOUS MOTORS (1.0 PÐAND SINGLE-PHASE MOTORS*

-For conductor sìz¡ng only.

THREE.PHASE SYNCHRONOUS MOTORS

Branch-circuit concluctors supplying a single motor shall have an

ampacþ not less than 125 percent of the motor full-load cunent rating.

Based on Table 430-148 of the National ElectricalCode'11993.

Over 200HPApprox. 2.75 2.4 1.2 .96 .24 .14Amps/HP

Branch-circuit conductors supplying a single motor shall

have an ampacity not less than 125 percent of the mo'''full-load current rating.

Based on Table 430-150 of the National EleclricalCode91 1993.

'For conductor sizing only

Hp 115V 200V 230V 460V 575V 2300V 4000V

1/242.321.83/q 5.6 3.2 2.8 1.4 1 .1

1 7.2 4.15 3.6 1.8 1.4

11/z 10.4 6 5.2 2'6 2.1

213.6 7.8 6.8 3.4 2.7

3 11 9.6 4.8 3.9

5 17.5 15.2 7.6 6.1

71/z 25 22 11 9

10 32 28 14 11

15 48 42 21 17

20 62 54 27 22

25 78 68 34 27

30 92 80 40 32

40 120 104 52 41

50 150 130 65 52

60 177 154 77 62 15.4 8.8

75 221 192 96 77 19.2 11

1oo 285 248 124 99 24.8 14-3

125 358 312 156 125 31.2 18

150 415 360 180 144 36 20.7

2oo 550 480 240 192 48 27.6

4000vHP 4ô0v 575V 2300v

11.514.417.2

100 100125 125'150 150

80100120

202530

2328.734.5

200 200250 250300 300

160200240

405060

40.546.357.5

350 353400 403500 500

282322400

705805

100

698192.6

600 600700 705800 805

480564644

120141161

104110

9001 000

905960

724768

181192

SINGLE-PHASE MOTORS

HP 115V 200V 230V

1/^

Vt1/^

1/^

'/4

4.45.87.29.8

13.8

2.53.34.15.67.9

2.22.93.64.96.9

1

11/z

23

16 9.2 I20 1 1.5 1024 13.8 1234 19.6 17

5 56 32.27Vz 80 46

10 100 57.5

284050

MAXIMUM LOCKED.ROTOR CURRENTS NEMA CODE LETTERSFOR NEMA THREE_PHASE INDUCT|ON MOTORS FOR A-C MOTORS

HP 200V 230V 460V 575V 2300V 4000V1/z 23 20 10 8

% 29 2s 12.5 10

1 34.5 30 15 12

11/z 46 40 20 '16

2 57.5 50 25 20

3 73,5 64 32 2s

5 106 92 46 37

71/z 146 127 63 51

10 186 162 81 65

15 267 232 116 93

20 334 290 145 116

25 420 365 182 146 36.5 21

30 500 435 217 174 43.5 25

40 667 580 290 232 58 3350 834 725 362 290 72.5 42

60 1000 870 435 348 87 50

75 1250 1085 592 435 108 62

100 1670 1450 725 580 145 83

125 2085 1815 907 726 181 104150 2500 2170 1'085 870 217 125

200 3340 2900 1450 1160 290 167

250 4200 3650 1825 1460 365 210

300 5050 4400 2200 1760 440 253

350 5860 5100 2550 2040 510 293

400 6670 5800 2900 2320 580 3334s0 7470 6s00 32s0 2600 650 374500 8340 7250 362s 2900 725 417

Based on NEMA Standards MG 'l-12.35.

NEMA Standards MG 1-10.37.2'Locked lC/A per horsepower range includes the lower figure up to, but notincluding, the hlgher figure. For example, 3.14 ¡s designated by letter A and3.15 by letter B.

Volts xstart. Kva - l-octe+iotor lmp - J \ for l-phasepei Hp - = TõõoX-HñpoË " i î.io3!?T,tå-ii

CODE LETTERS USUALLY APPLIED TORATINGS OF MOTORS NORMALLYSTARTED ON FULL VOLTAGE

NEMACODELETTER

LOCKEDROTORKVA PERHP*

NEMACODELETTER

LOCKEDROTORKVA PERHP*

AB

cD

E

F

G

H

J

K

0-3.153.15-3.553.55-4.04.0 -4.54.5 -5.05.0 -5.65.6 -6.36.3 -7.17.1 -8.08.0 -9.0

L

M

N

P

R

tT

U

V

9.0-10.010.0-1 1 .2

11.2-12.512.5-14.014.0-16.016.0-18.018.0-20.020.0-22.422.4 and up

CODE LETTERS F G H J K L

Horse-power

3-phase '15 up 10-71/z

5 3 2-11/z

1

1 -phase 5 3 2-11/z

1-3/¿

Vz

FULL.LOAD EFFICIENCIES OFEN ERGY-EFFICI ENT MOTORS-OPEN MOTORS

FULL.LOAD EFFICIENCIES OFENERGY.EFFICIENT MOTORS-ENCLOSED MOTORS

-Nominal efficiencies compiled from the Energy Policy Act of'1 992; minimum eff iciencies compiled from NEMA StândardsMG 1-1993, Table 12-10.

.Nomìnal efficiencies compiled from the Energy policy Act of1992; minimum eff iciencies compiled from N"EMA StândárdsMG 1-1993. Table 12-10

(Compl.iance on non-exempted newly manufactured or importedgeneral purpose motors to be fully imþlemented by 1997.)

(Compliance on non-exempted newly manufactured or importedgeneral purpo,qg. motors to be fu[ly implemented by 1997.Èxplosion-proof UL-labeled motors need not comply untii 1999 )

Hp

2 POLE 4 POLE 6 POLE

NominalEfliciency

MinimumEtl¡c¡ency

Nominal

Eff¡ciency

MinimumEff¡c¡ency

NominalEff¡ciency

M¡nimumEfliciency

1.0

1.5

2.0

305.0

7.5

10.0

15.0

20.0

25.0

30.0

40.0

50.0

60.0

75.0

.100.0

125.0

150.0

200.0

82.5

84.0

84.0

85.5

87.5

88.5

895

90.2

91.0

91.0

91.7

92.4

93.0

93.0

93.0

93.6

93.6

94.5

81.5

82.5

82.5

84.0

86.5

87.5

88.5

89.5

90.2

90.2

91.0

91.7

92.4

92.4

92.4

93.0

93.0

941

825

840

84.0

865

87.5

88.5

89.5

91.0

91.0

917

92.4

93.0

93.0

93.6

94.1

94.1

94.5

95.0

95.0

81.5

82.5

82.5

85.5

86.5

87.5

88.5

90.2

90.2

91.0

91.7

92.4

92.4

93.0

93.6

93.6

94.1

94.5

94.5

80.0

84.0

85.5

865

875

88.5

90.2

90.2

91.0

91.7

92.4

93.0

93.0

93.6

93.6

94.1

94.1

94.5

94.5

785

82.5

84.0

855

865

87.5

89.5

89.5

90.2

91.0

91.7

92.4

92.4

93.0

93.0

93.6

93.6

94.1

94.1

Hp

2 POLE 4 POLE 6 POLE

Nominal

EfficiencyMrnimumEfl¡ciency

NominalEffi ciency

MinimumEfliciency

NominalEft¡ciency

MinimumEfficiency

1.0

1.5

¿.u

30

5.0

7.5

10.0

15.0

20.0

25.0

300

40.0

50.0

60.0

75.0

100.0

125.0

150.0

200.0

75.5

82.5

840

85.5

875

88.5

89.5

902

90.2

91.0

91.0

91.7

92493.0

93.0

93.6

945

94.5

95.0

74.0

81.5

82.5

84.0

86.5

87.5

88.5

895

89.5

90.2

90.2

91.0

91.7

92.4

924

93.0

94.1

94.1

94.5

82584.0

840

87.5a1 t

89.5

89.5

91.0

91.0

92.4

92493.0

93.0

93.6

94.1

945

945

95.0

95,0

ð t.5

82.5

82.5

86.5

86.5

88.5

88.5

90.2

90.2

91.7

917

92492.4

93.0

936

94.1

94.1

945

94.5

80.0

85.5

865

87.5

87.5

89.5

89.5

90.2

90.2

91.7

917

93.0

93.0

93.6

936

94.1

941

95.0

95.0

10 c

840

855

86.5

86.5

885

88.5

895

89.5

91.0

91.0

92.4

924930

93.0

936

93.6

94.5

945

lo

GENERAL EFFECT OF VOLTAGE ANDFREQUENCY VARIATIONS ON INDUCTIONMOTOR CHARACTERISTICS

EFFECT OF VOLTAGE VARIATIONON INDUCTION MOTORCHARACTERISTICS

I

f

,

t

l¡Jot

=É,ol¡frIJJÈtroFo==v)UJ(,z

oFzu¡otrulo.

+20

+15

+10

+5

0

-5

-'10

-'t5

-20

-15 -10 _5 o +5 +.lo +.15

PERCENT VOLTAGE VARIATION

CHARACTERISTIC VOLTAGE FREOUENCY11Oo/" 9O/" 105o/o 95%

Starting Torque

Maximum Torque

Percent Slip

EfficiencyFull Load3/¿ Load

1/z Load

Power FactorFull Load3/¿ Load

1/z Load

Full-Load Current

Starting Current

Full-LoadTemperature Rise

Maximum OverloadCapacityMagnetic Noise

Up 21o/"

Up 21%

Down15-20%

Downo-3%0-DownSlightlyDownO-5/"Down5-15/"Down5-15%Down10-20%DownSlightlyTo Up5%Up 10%

Up 10%

Up 21%

UpSlight y

Down19%Down19%Up 20-30%

Down0-2%LittleChange

up o-1Yo

up 1-7%

up 2-ao/r/o

up 3-10%up 5-1O/"

Down10%Down10-15%Down19%DownSlightly

Down10%Down10y"

Up10-15%UpSlightlyUpSlightly

UpSlightlyUpSlightlyUpSlightlyUpSlightlyDownSlightly

Down5%DownSlightly

DownSlightlyDownSlightly

Up11%Up11o/"

Down5-lOIoDownSlightlyDownSlightly

DownSlightlyDownSlightlyDownSlightlY

DownSlightlY

UpSlightlY

Up 5"h

UpSlightlY

UpSlightlY

Uosíisnt1l

20

EFFECTS OF VOLTAGE UNBALANCE ONMOTOR PERFORMANCE

COMPARISON OF METHODSOF STARTING SQUIRREL CAGEINDUCTION MOTORS

Should voltages be unbalanced, the rated horsepower of the motorshould be multiplied by the factor shown in the graph below to reducethe possibility of damage to the motor. Operation of the motor abovea 5 percent voltage unbalance condition is not recommended.Alternating-current, polyphase motors shall operate successfullyunder runn¡ng conditions at rated load when the voltage unbalanceat the motor terminals does not exceed 1 percent. pelormance willnot necessarily be the same as when the motor ¡s operating with abalanced voltage at the motor terminals.

PERCENT VOLTAGE UNBALANCE

MEDIUM MOTOR DERATING FACTOR DUE TOUNBALANCED VOLTAGEPercenl Voltage Maxìmum Voltaoe Deviation from Averaoe VonaqeUnbalance - rw^

Example-With voltages of 460, 467, and 450, the average is 459, themaximum deviation from the average is 9, and the

PercentUnbalance = 100Xå = t.g6percent

Reference NEMA Standards MG 1-i993, 12.4S & i4.35.

Soft start is arso avairabre using ror¡oìt"t".or,trot-". consurt man-ufacturer for voltage, current a-nd torque.'Aulotransformer magnetizing current not included. Magnetizingcurrent usually less than 25 percent motor full_load curre-nt.

J

1.0

0.9

0.8

.75

Íot-OLL

C'ztrfrtuo

STARTER TYPE

% FULL-VOLTAGE VALUEVOLTAGEATMOTOR

LINECURRENT

MOTOROUTPUTTORQUE

50 pc tapPrimary-resistorTypical rating

Part-windingLow-speed motors(i/rr/z)

High-speed motors(1/rV)

High-speed motors(%-%)

Wye Start-Delta Run(1/r1A)

]

100

8065

50

80

65

50

80

100

100

100

100

100

64*

42*25*

8065

50

80

50

70

65

33

100

64

42

25

64

42

25

64

50

50

42

33

o0oõ

oI

iI

t,,/

tlililil;

¿\

)

oo

\¡.-

iil!l

.4 ti

(olo

oroL(oa

i¿', j

iluYñe.oP!É

+oo+Im#ÞzH¡m+83Ë+rßfrq=(nm={mcC)vaørìã9zOomio1CN

ooSpeed (% of synchronous speed)

1\)5o)@ooooo o (D 0znm9=oÞ2

O gQ ÞR $;t -e,qÌFg ã'; ãËã=

õ'9 õ9.3{< ---a,ã '=€ 1',õ: äo-o-: lJ-o=Jf :. :

n Àt -.@Ë Q.f :f

Ë. ã'E A8aäd' rE*Eg Ë

ã'oÞe' Ð pB.* ag=-Øv.:0¡ _*'üù o o- g> :s'g

Ë

\

9 Fgg ão o ==. c

; äËå 3

eô97;-äq$-] g"rE E-=ã 5qrfa

9øeõOOOØ-,ã:-" g'"cDø o

åi *H iig 5í@õ r;iss3€-õ-Ë r-Pae-ò9l!

lO(Jl

ËARÈ ñO D.a = =o-< =' co 9p åi 3r=L *Ð =J o€:,8 ü

-+43q artåâ* €i@oQ0tã-dï+_sË fi q ë

d-øto>+Ø o=.O -lr-â.: s.ä93 o-ÊËt F

_õy, ;\o

c,U';ia4In=zz{o

!t-oo{oo^¡mE,

;o¡¡moÞcãrr0o{z

(t,tr!

ìì AzÉmg<oÞc_-1 L,'gEn(o)

aq)

ÞÂ,

=.oo0oL(oa(!

=Ð)(o=.(o=oõc)xoô

(¡o+0::O:o.o

0

E(¡=OI00)on¡îoiooo

N)olo

(¡)oo

NEMA SHAFT DIMENSIONSD-C MOTORS AND GENERATORS

^)'J1

FRAME RAI{GE DRIVE EIID-BELT DRIVE ET{D_OIRECT OPP DRIVE EIID_STRAIGHTu ll.w v

MtilRESS

M[{u t{-wv R Es s

filtt{ MtilFU FII. FV

FW M[{FR FES FS

Mtil42485656H

3755625625

12588BB

.328 FLAÏ,453 FLAÏ517 1 41 .188,517 141 lBB

3755625625

12588BB

328 FLAT453 FLA-r517 1 41 188517 1 41 188

1424r-141247 875 75 15 771 91 188 625 1 25 1 517 66 188162AT-1610AT 875 75 1,5 771 91 188 625 1 25 I 517 66 1881 B2AT-1 B1 OAT I 125 225 2 .986 1 41 2s 875 I 75 I 5 771 91 1882134t-2t10AT I 375 2.7s 2 s 201 178 31? 125 2.25 2 986 1 41 2525341-259AT

.l 625 325 3 416 228 375 37s 275 25 I 201 178 3122834t-2B9AT 1.875 375 35 591 253 5 625 325 3 1416 228 3753234ï-329AT 2.125 4 25 4 845 303 s 875 375 35 1591 253 53634I-369AT 2 375 4 75 4 5 2,021 3 53 625 2125 425 4 1845 303 54034T-409At 2625 525 5 2275 403 625 2375 4,75 45 2021 3 53 6254434T-449A't 2.875 5 75 5.5 2 45 4 53 75 2625 525 5 2275 403 6255024T-509AT taÉ 65 6.25 2 831 528 75 2875 575 55 245 453 755¡i3A-5U¡tA 325 975 95 283.t 828 7s 2 875 5.75 5 5 2.45 4 28 756834-6884 3 625 10 88 10 62 3 134 I s3 87s 325 65 625 2831 503 75

All dimensions in inches. Reference NEMA Standards MG 1-1 1 .60, 1 i .61 & 1 1 .62.

ìt

NEMA FRAME DIMENS¡ONSD-C MOTORS AND GENERATORS, FOOT-MOUNTED

All dimensions in inches. Reference NEMA Standards

NEMA FRAME DIMENSIONSD-C MOTORS AND GENERATORS, FOOT-MOUNTED

-CONTINUED

All dimensions in inches. Reference NEMA StandardsMG 1-11.60, 11.61 & 11.62.

BAH2FDFRAIIE E

258AT259AT2æA-r2S4Ar

6256257

12514I95

53 42553 42553 47553 4755

2854T 7 55 10 53 4752864T 7 55 11 53 47528741 7 55 125 .53 4752884T 7 55 14 53 475289AT75516.æ4753234T I 6.25 9 66 5.25324AT I 6_25 10 5 66 5253254T I 6 2s 11 ô6 52s326473274r3284732947

IIIa

66666666

t25 12i25 14ì 25 16ì 25 18

525525525525

36347364AT365AT36647

I99I

1011 2512 2514

588s88588588

8'1

81.8181

97169 7 1897m

10 I 11

36747368AT36947403AT

81 58881 s888t 58894 662

404AT405AT,1064-r4O7AT

101010'10

225 94 662375 94 6 626 94 662I 94 662

4O8AT409AT44347444AT

'10

10'11

11

6626627575

202212515

.9494

106106

4454T 11 9 165¿t46AT 11 I 1844741 11 3 2044AAT 11 S 22

06060606

75

75

¿t49AT

5O2AT5O3AT504AT

252525

2512514'16

06191919

75858.585

505AT 125 10 18506AT 125 10 20s07AT 125 10 225084T 125 10 25

rg191919

85858585

5094T 125 ¡0 285834 14 5 1 l_5 165844 14.5 11 5 185E5A 14 5 11.5 20

19 8519 10'19 1019 10

5864587458846834

14514514517

15 2215 2515 2A35 20

't01010115

19191919

6844 176854 176864 176874 176AaA 17

35 22 119 11535 25 1.19 11 535 2A 119 11535 32 119 11535 36 119 115

FRÀME D E BAH2F

262 175 169 .28 2063 212 275 34 2535 244 3 34 2753 5 2.44 5 34 2.75

42485656H

142Ar 35 275 35 34 275143AT 35 275 4 34 275144Ar 3 5 275 45 34 2751454T 35 275 5 34 275't46AT 35 275 55 34 275147Af 3 5 275 6 2s 34 27s1¿t8AT 35 275 7 34 2.75149AT 35 275 I 34 275410AT 35 275 9 34 2.7541 1AT 3.5 275 10 34 275412Ar 35 275 11 .34 27562AT 4 312 4 41 2-5

163AT 4 3 121644T 4 312165AT 4 312'f66AT 4 312

25

41414'1

41

45

55625

167AT 4 3 12168AT 4 3 12169AT 4 3 121610AT 4 3 12

41414141

7I9

10

252525

182AT 45 375 45 41 275183AT 4.5 3 75 5 41 275184AT 4.5 3 75 5.5 41 2.75185AT 45 3 75 6 25 41 275186AT 45 3 75 7 4187AT 45 3 75 8 4188AT 4.5 3 75 I 4189AT 45 375 10 4

275275275

1810AT 45 3 75 11 4213AT 525 425 55 4214AT 5 25 425 6 25 42154T 5 25 425 7 4216AT 525 425 I 4

2753535

3521741 5.25 425 9 42184T 5 25 425 10 42194T 5.25 425 11 42110AT 525 425 '125 4

3535353s

25sAT 625 5 7 s3 425254AT 6 25 5 I 25 53 425255AT 625 5 9 53 425256AT 6 25 5 l0 53 4 25257AI 625 5 11 53 425

MG 1-11.60, 11.61 & 11.62.

IEC FRAME DIMENSIONS*FOOT.MOUNTED THREE-PHASE MOTORS

'Letters ¡n parentheses are NEMA equivalenl to IEC

FRAME H (D) A (zEl Ben c (BA) K (H) D (U) E (N-w)mm IN mm IN mm IN mm IN mm IN mm IN mmllN

56

63

71

80

90s90L

1 00L112M132S

132M

160M

160L

56

63

71

809090

100

112132132160

160

2,22.482.83.153,543,543.944.41

5.25.26,3

6.3

90

100

112125140140160190

216216254254

3,543,944.41

4.925.51

5,516.37.488.58,5

10

10

7'l

80

90

100

100

125'140

140140

178210254

2.83.153.543.943.944.925.5

5,5

5,5

7

8.27

10

36

4045

50

5656

6370

89

89

108

108

1.42

1.57

1.77

19.7

2.22.2

2.482.753.5

3.54.254.2s

5,87

7

10

1010

12

12

12

12

15

15

.228

.276

.276

.394

.394

.394

.472

.472

.472

.472

.591

,591

iIANUFBEYONI

qCTUREFS

) THE 132 F

DO ¡IOT AGREERAME.

FRAME H (D) A (2El B en c (BA) K (H)mm IN mm IN mm IN mm IN mm IN

180M

1 80L200M

200L2255225M250S250M

280S280M31 5S

315M31 5L

s5ss355M

3551

400M

400L

180

180

200200225225250250280280315

315315

355

355

355

400400

7.097,097.877,878.868.869.849,84

11

11

12.4

12,4

12.4't414

14

15.75

15.75

279279318318356356406406457

457

508508508

610

610

610

686

686

11

11

12.5

12.5

14

14

16

16

18

18

20

20

20

24

24

24

27

27

241

279267

305

286311

311

349368419

406

457

s08

500

560

630

630710

9.511

10,5

12

11.25't2.25

12.2513,7514.5

16.38

16

18

20

19.69

22

24.8

24.8

27.95

121

121

133

133

149

149168

168

190

190

2162',16

216254254254280280

4.764.765.245.245.875.87

6.626,627.487.488,5

8.58,5

10

10

10

11

11

15

15

19't9

19

19

2424242428

28

28

28

28

28

35

35

.591

,591

.748

.748

.748

.748

.94s

.945

.945

.9451j021,1021.'toz1.1021.1021.1021.378

1.378

3 NEMA FRAME DIMENSIONSFOOT-MOUNTED A-C MOTORSAND GENERATORS

48s6143143114514571821827184184720320421321372152157224

284U 7284T 7284TS 7286U 7286T 7286T5 7

3 2j23.5 2.443.5 2.753.5 2.753.5 2.753.5 2.754.5 3.754.5 3.754.5 3.754.5 3.7554545.25 4.255.25 4.255.25 4.255.25 4.25s.5 4.5

2.75 .343 .344 .344 .345 .345 .344.5 .414.5 .415.5 .415.5 .415.5 .416.5 .415.5 .415.5 .417 .417 .416.75 .41

225 5.5 4.5 7.5 .41 1 3.5 3 2]5

"H' DtA4-HOLES

.5 2.5 1.5

.625 2.75 1.88

.75 2.25 2 1.75

.875 2.25 2.2s 2

.75 2.25 2 1.75

.875 2.25 2.25 2

.875 2.75 2.25 21.125 2.75 2]5 2.5.875 2.75 2.25 2

1.125 2.75 2.75 2.5.75 3.12 2.25 2.75 3.12 2.25 2

1.125 3.5 3 2.751,375 3.5 3.38 3.121.125 3.5 3 2.751.375 3.5 3.38 3.121 3.5 3 2.75

.453

.517 1.41

.643 1.41

.771 1.41

.643 1.41

.771 1.41

.771 1.41

.986 1.78

.771 1.41

.986 1.78

.643 1.53

.643 1.53

.986 2.031.201 2.41.986 2.03

1.201 2.41. .857 2.03

.857 2.03

.986 2.031.201 2.781.416 2.911.201 2.781.416 2.91.986 2.03

1.416 3.781.591 3.281 .416 1 .911 .416 3.781.591 3.281.416 1.911.4'16 3.781.591 4.281 .416 1.911.845 3.911.591 2.031.416 3.781.591 4.281.416 1.911.845 3.911.591 2.03

Flat.188.188.188.188.188.188.25.188.25.188.188.25.312.25,312.25

.25,25.312.375.312.375.25.375.5.375.375.5.375.375.5.375.5.5.375.5.375.5.5

254 6.25 5254U 6.25 5254T 6.25 5256U 6.25 s256T 6.25 5

.53 1.375 4.25 3]5 3.5

.53 1.625 4.25 4 3]5

8.25 ,53 1.125 4.25 3.37 3.128.25 .53 1.375 4.25 3.75 3.58.25 .53 1.625 4.25 4 3]5

1010

5.55.55.55.5

5.5 11 .53 1.625 4.75 9.25 36.25 10.5 .66 1.625 5.25 4.87 4.626.25 10.5 ,66 1.875 5.25 5.62 5.386.25 10.5 .66 1.625 5.25 9.25 36.25 10.5 .66 2.125 5.25 5.25 56,25 10.5 .66 1 .875 5.25 9]5 3.5

9.5 .53 1.25 4.75 3.75 3.59.5 .53 1.625 4]5 4.88 4.629.5 ,53 1.875 4]5 4.62 4.389.5 .53 1.625 4.75 3.25 3

.53 1.625 4.75 4.88 4,62

.53 1.875 4.75 4.62 4.38

.66 1.625 5.25 4.87 4.62

.66 1.875 5.25 5.62 5.38

.66 1.625 5.25 3.25 3,66 2.125 5.25 5.25 5.66 't.875 5.25 3.75 3.5

324

5.5 11

5.5 11

6.25 126.25 126.25 't26.25 126.25 12

324U I3245 I324T I324TS I326U I3265 I326T I326T5 IAll dimensions in inches. Reference NEMA standards MG r ¡ r:r .

-.-ÊGf=-r.

HUBAN.W

NEMA FRAME DIMENSIONSFOOT-MOUNTED A.C MOTORSAND G ENERATORS_CONTI NUED

364364S364U364US3647364TS365365S365U365US3657365TS404404S404U404US

405405S405U405US40sT4O5TS4444445444U444US4447444T]445445S445U445US4457445TS447T5449TS504U505505s

11.2511.2511.2511.2511.2511.2512.2512.2512.2512.2512.2512.2512.2512.2512.2512.25

13.7513.7513.7513.7513.7513.7514.514.514.514.514.514.516.516.516.516.516.516.52025161818

I999I999I999

10'10

1010'1w1010101010101.1

11

1'l11

1111

11

11

11't1

11

1'l11

11

12.512.512.5

777777777777IIIIIIB

B

88II9I9II9I9999I

1010't0

1.5911 .4161.8451.5912.011.5911.5911 .4161.8451.5912.0211.5911.8451.5912.0211.845

4.281.91s.032.034.282.034.281.915.032.034.282.035.032.035.532.78É FF,-

5.032.035.532.785.652.785.532.787.032.786.913.035.532.787.032.786.913.03

.66 1.875 5.88 5.62

.66 1.625 5.88 3.25

.66 2.125 5.88 6.37

.66 1.875 s.88 3.75

.66 2.375 5.88 5.88

.66 1.875 5.88 3.75

.66 1.875 5.88 5.62

.66 1.625 5.88 3.25

.66 2.125 5.88 6.37

.66 1.875 5.88 3.75

.66 2.375 5.88 5.88,6ô 1.875 5.88 3.75.81 2.125 6.62 6.37.81 1.875 6.62 3.75.81 2.375 6,ô2 7j2.81 2j25 6.62 4.25

12562512588

3.5.3.6.3.6.4

.5

.375

.5

.5

.625

.5

.5

.375

.5

.5

.625

.5

.5

.5.625.57q

.5

.5

.625

.5

.75

.5

.625

.5

.75

.5

.875

.625

.625

.5

.75

.5

.875

.625

.38

.12

5.3836.123.55.623.55.3836.123.55.623.56.12

.81 2j25 6.62 6.37 6.12 1 .845

.81 1.875 6.62 3.75 3.5 1.591

.81 2.375 6.62 7.12 6.88 2.021

.8.r 2.125 6.62 4.25 4 1.845

.81 2.875 6.62 7.25 7 2.45

.81 2.125 6.62 4.25 4 1.845

.81 2.375 7.5 7.12 6.88 2.021

.81 2.125 7.5 4.25 4 1 .845

.81 2.875 7.5 8.62 8.38 2.45

.81 2.125 7.5 4.25 4 1 .845

.81 3.375 7.5 8.5 8.25 2.88

.81 2.375 7.5 4.75 4.5 2.021

.81 2.375 7.5 7j2 6.88 2.021

.81 2.125 7.5 4.25 4 1 .B4s

.81 2.875 7.5 8.62 8.38 2.45

.81 2.125 7.5 4.25 4 1.845

.81 3.375 7.5 8.5 8.25 2.88

.81 2.375 7.5 4.75 4.5 2.021DIMENSIONS VARY WITH MANUFACTURERDIMENSIONS VARY WITH MANUFACTURER.94 2.875 8.5 8.62 8.38 2.45.94 2.875 8.5 8.62 8.38 2.45.94 2.125 8.5 4.25 4 1.845

7 28 .757 28 .75278 .5

All dimensions in ¡nches. Reference NEMA Standards MG 1-1 1 .31 .

V min' R ES min'

r i - -¿:E.9l'4it!l:lùJffi

NEMA FRAME DIMENSIONSFOOT.MOUNTED A-C MOTORSAND GENERATORS_CONTINUED

.66 1.875 5.88 5.62

.66 1.625 5.88 3.25

.66 2.125 5.88 6.37

.66 1.875 5.88 3.75

.66 2.375 5.88 5.88

.66 1.875 5.88 3.75

.'H" DIA4.HOLES

364364S364U364US3647364TS365365S365U365US3657365TS404404S404U4O4US

405405S405U4O5US4057405TS4444445444U444US4441444TS445445S445U445US4457445TS447T5449TS504U505505S

I99999999999

10101010

101010'10

101011'11

11

11

11

11'11

11

11

1'l11

11

11

1'l12.512.512.5

11.2511.2511.2511.2511.2511.2512.2512.2512.2512.2512.2512.2512.2512.2512.2512.25

13,7513.7513.7513.7513.7513.7514.514.514.514.514.514.516.516.516.516.516.516.52025161818

5.3836.123.55.623.5

1.5911 .4161.8451.5912.01

4.281.91s.032.034.282.034.281,915.032.034.282.035.032.035,532.78tr â5.-

5.032.035.532.785.652.785.532.787.032.786.913.035.532.787.032.786.913.03

.5

.375

.5

.5

.625

.5

.5

.375

.5

.5

.625

.5

.5.5.625.576-

.5

.5

.625

.5

.75

.5

.625

.5

.75

.5

.875

.625

.625

.5

.75

.5

.875

.625

777777777777IIII

o

IIIIB

II9I99III9I9III

101010

.66 1.875 5.88 5.62 5.38

.66 1.625 5.88 3.25

.66 2.125 5.88 6.37

.66 1.875 5.88 3.75

.66 2.375 5,88 5.88

.66 1.875 5.88 3]5

.81 2.125 6.62 6.37

.81 1.875 6.62 3.75

.81 2.375 6.62 7.12

.81 2.125 6.62 4.2522rt n2.1'¿c ^6.?- 14-E-- -.,.81 2j25 6.62 6.37 6j2 1.845.81 1.875 6.62 3.75 3.5 1.s91.81 2.375 6.62 7.12 6.88 2.021.81 2.125 6.62 4.25 4 1.845.81 2.875 6.62 7.25 7 2.4581 2.125 6.62 4.25 4 1.845.8'f 2.375 7.5 7.12 6.88 2.021.81 2.125 7.5 4.25 4 1.845.81 2.875 7.5 8.62 8.38 2.45.81 2.125 7.5 4.25 4 1.845.81 3.375 7.5 8.5 8.25 2.88.81 2.375 7.5 4.75 4.5 2.021.81 2.375 7.5 7j2 6.88 2.021.81 2.125 7.5 4.25 4 1.845.81 2.875 7.5 8.62 8.38 2.45.81 2.125 7.5 4.25 4 1.845.81 3.375 7.5 8.5 8.25 2.88.81 2.375 7.5 4.75 4.s 2.021DIMENSIONS VARY WITH MANUFACTURERDIMENSIONS VARY WITH MANUFACTURER.94 2.875 8.5 8.62 8.38 2.45.94 2.875 8.5 8.62 8.38 2.45.94 2.125 8.5 4.25 4 1.845

3 1 .4166.12 1.8453.5 1.5915.62 2.0213.5 1.5916j2 1.8453.5 1.5916.88 2.0214 1.845

7.28 .757.28 .752.78 .5

Frame D E 2F H U BA N-W V min. R ES min. S

All dimensions in inches. Reference NEMA Standards MG 1-1 1.31 .

NEMA FRAME DIMENSIONSTYPE C FACE.MOUNTING FOOT ORFOOTLESS A.C MOTORS

I, I MOIINIING

¡l fBl-zf sunrace rf{--'S--1

^lJt

42C

4BC

s6c

1 43TC and 1 45TC

182TC and 184TC

182TCH and 184TCH

3.750

3 750

5.875

5.875

7.250

5 875

3.000

3.000

4.500

4.500

8.500

4 500

8.500

I 500

o 500

2.062

2.50

2.75

2.75

3,50

3.50

4.25

4.75

4.75

4.75

5.25

5.25

5.88

5.88

6.62

6.62

7.50

7.50

0.16

0.16

0.16

0.16

0.25

016

o,25

o,25

o.25

0.25

0.25

o.25

0.25

o.25

0.25

0.25

0.25

0.25

0.25

-0.1 I-0 19

-0.1 I+0.12

+0.12

+0.12

5.00

5.625

6.50

6.50

9.00

650

1t¿-2o

tta-2o

3/o-1 6

sle- 1 6

1tz-13

3is'1 6

t¡r-13

ttz'13

1t¿-13

1tz'13

5ls'1 1

5le-1 1

3ra- 1 1

3la-1 1

Eo-1 1

3ro'1 1

5/a-1 I

s/o- 1 I

3¡s-1 I

3750

500

0.8750

1.1250

1.1250

1.312

1.69

2.06

2.12

2.62

262

0.328

0.453

0.517

o.771

0.986

0.986

1.201

1 .416

1 .519

1.416

1.845

1 .591

2.O21

1.591

2.450

1.845

2.e80

2.O21

1,41

1.41

1.78

178

flat

llat

0.1 88

0.1 88

0.250

o,250

OIMENSIONS FOBFBÂMES WHEBE AJ IS ilrl

L^o

0. s6

0.75

0.s6

o.75

0.75

o.75

0.75

0,94

0,94

0.94

0.94

0.94

0,94

0.94

0.94

0.94

4

4

4

4

4

4

4

4

4

4

4

4

IIIIII4

213TC and 21sTC

254TC and 256TC

284TC and 286TC

284TSC ancl 286T5C

324TC and 326TC

324TSC and 326TSC

364TC and 365TC

364TSC and 365TSC

404TC and 405TC

404TSC and 405TSC

4441C and 445TC

444TSC and 445TSC

500 frame serles

7.250

7.250

9.000

9.000

'I .000

1.000

1.000

1.000

1.000

'L000

4,000

+O.25

+0 25

+0 25

+0.25

9.00

10.00

11.25

11.25

'14.00

14.00

14.00

14.00

15.50

15.50

18.00

'18,00

18.00

1,3750

1.625

1.875

1.625

3.12

3.75

4.38

3.00

5.00

3.50

5.62

3.50

7,OO

4.00

8.25

4,50

2.41

2.91

3,28

'1.91

3.91

2.03

4,28

2.O3

5.6s

2.78

6.91

3.03

0.312

0.375

0.500

0.375

0.500

0.500

0.625

0.500

0.750

0,500

0.875

0.625000

10.500

12.s00

12.500

12.500

12.500

12.500

2,500

16.000

16.000

6.500

25

+O.25

25

25

25

0.25

.125

1,875

.375

1.875

.875

125

3.375

2.375

All d¡monsions ln lnches. Rele¡ence NEMA Standards MG 1-1 1 .34.

. NEMA FRAME DIMENSIONSTYPE D FLANGE.MOUNTING FOOT ORFOOTLESS A-C MOTORS

FRAMEDESIGNATIONS AJ AK BA BB BC

BDMax

BENorh

BF Hole

U AH

Koysoat

Number SlzeBollL€ngth R

ESMln s

1 43TD and 1 45TO

1 82TO end 1 84TO

21 3TD end 21 sTD

254'tÐ Bnd 256TDI

284TD end 286TD

28aTSD and 286T5

324TD and 326TD

324TSD and 326T5

364TD and 365T0

364TSD end 365TSl

404TO and 405TO

404TSO and 405TSl

444TD and 44STD

444TSD and 445TSl

500 lrEme g€riss

10.00

10.00

10.00

itz.so

12.50

12.50

16.00

16.00

16.00

16.00

20.00

20,00

20.00

20.00

22.00

9.000

9.000

9.000i

\ 11.000

f

1

I

1

I

1

I

I

I

I

I

2.75

350

4.25

4.75

4.75

4.75

5,25

5.25

5.88

5.88

6.62

6.62

7.50

7.50

o.25

0,25

0.25

0,2s

0.25

o.25

0.25

o.25

0.25

0.25

0.25

0.25

0.25

0.25

0,25

0,00

0,00

0.00

0.00

0,00

0.o0

0.00

0.00

0.00

0,00

0.00

0.00

0,00

0.00

0.00

11.00

11.00

11.00

14 00

14.00

14.00

18.00

18.00

18.00

18.00

22,00

22,00

22.00

22.00

25.00

050

050

050

075

0.75

0.75

0.75

0.75

0.75

0.75

1.00

1.00

1.00

1.00

0.53

0.53

0.53

0Bt

4

4

4

4

4 0.81

4 0.81

4 0.81

4 0.81

4 0.81

4 0.81

I 0.81

I 0.81

I 0.81

I 0.81

I 0.81

1.25

1.25

1.25

2.OO

2,00

2.00

2.O0

2.OO

2.00

2.00

2,25

2.25

2,25

2.25

).8750

1.1 250

,3750

.625

'1.875

1.625

2.125

1.875

2.375

1,875

2.875

2.125

3.375

2.375

2.25

2.75

3,38

4.00

4.62

3.25

5.25

3.75

5.88

3.75

7.25

4.25

8.50

4.75

o.771

0.986

1.201

1.416

1.591

I .416

1.845

1.591

2.021

1.591

2.450

1.845

2.880

2.O21

1.41

1.78

2.41

291

3.28

1,91

3.91

2.03

4.28

2.03

5.65

2.78

6.91

3.03

0.1 88

0.250

0.312

0.375

0.500

0.375

0.500

0.500

0.625

0.500

0.750

0.500

0.875

0.625

All dim€ns¡ons ln lnch€s.Reference NEMA Standards MG 1-11,36.

!EMA FRAME DIMENSIONSYPE JM & JP FACE-MOUNTING,LOSE.COUPLED, A-C PUMP MOTORS

143 184 JP ãd JM2r¡ 365 JP213 126 JM

FRAMES 213.365 JP2i3-126 JM

FAAMES 143184JP and Jm

Class 3 B H

r-RAMEDESIGÀ

182JP and 184JP

213JM and 21sJM

2-1UP and 215JP

25dM and 256JM

2-5NP dnd256JP

2B4JM and 28d.JM

?-84JP and286JP

324JM and 326JM

32¿UP and 326.rP

36¿tJP and 365JP

213 365 JP213 326 JM

7.3437.281

4.2814.219

8.1568.094

5.2815.219

8.1568.094

5.28f5,219

8.1 568.094

5.28f5.219

8.1568.094

8,1 568,094

o.87450.8740

0.87450.8740

1.24951.24901.24951.24901.24951.2490

1.24951,2490

1.24951.2490

1.24951.2490

1.24951.2490

1.62451.6240

5.875

7.250

7.250

7.250

7.250

1 t.000

11.000

11 000

11.000

11.000

4,5004.497

8.5008.497

8,5008.497

8.5008.497

8.5008.497

1 2,50012.495

12.50012.495

12.s0012.495

12.500't2.495

12.50012.495

0,1 560.125

o.3120.250

0.3120.250

0.3120.250

0.3120.250

0.3120.250

o.3120.250

o.3120.250

0,3120.2s0

o.3120.250

662

9.00

9.00

10.00

10,00

14,00

14.00

14,00

14.00

14.00

3ls-1 6

rlz'1 3

ttz-13

ttz-13

ltz-13

3ls-1 I

5ra-1 1

5ls'1 1

5le-1 1

sls- 1 1

0.56

0.75

0.75

0,75

0.7s

0.94

0.94

0,94

0.94

0.94

4

4

4

4

4

4

4

ESIGNATIONS u AH AJ AK BBBDMax

8F

NumbarTaPSlze

BoltPenetratlorAllowanco

4.2814.219

7.3437.281

4,2814 219

5.875

5.875

s.875

4.5004.497

4.5004.497

d50a4 497

0.1560.125

0.1560.1 25

Qt580 125

6,62

6.62

6.62

4

4

4

3le'l 6

s¡r'1 6

lra-1 6

0.56

0.56

0.56

\ll dimensions in inches. Beference NEMA Standards MG 1'18.614.

.IEMA FRAME DIMENSIONSYPE JM & JP FACE-MOUNTING,

OSE-COUPLED, A-C PUMP MOTORS - CONTINUED

".1 E

iY}L

213 326 JM

0.6400.610

1.5781.548

0.6400.610

2.3902.360

0.6400.610

2.3902.360

0.6450.605

2.3902.360

0.6450.605

2.3952.355

2.3952.355

FFAMES 213.]65 JP211.126 JM

0.771-0.756

0.771-0.756

o.771-0.756

1.'t12-1 .O97

1.1',t2-1.O97

1 .112-1.O97

1.112-1.O97

1.',t12-1.O97

1.112-',t.097

1 .1 12-1 .097

1 .41 6-1 .401

FFATES 143-184

0.190-0.188

0.1 90-0.1 88

0.1 90-0.1 88

o.252-0,250

o.252-0.250

o.252-0.250

o.252-0.250

0.252-0.250

0.2s2-0.250

0.252-0.250

o.377-O.375

2r3 365 JP213 326 JM

BF HOLE

'l82JM and 184JM

182JP and l84JP

21 3JM and 21 5.,M

213JP and 21sJP

254JM and 256JM

254JP and 25ôJP

28¿UM and 286JM

284JP and286JP

i324JM and 326JM

I

;324JP and 32ôJP

i

i364JP and 36eJP

0.9995

1.00001 3ia-16 I 1.120.9sss I I

1.3750 lr/,-13 I 1.501.3745

1.37501r/2-13 I 1.50'1.3745

1.3750 1r/2-13 I 1.501.3745

'1.0000 I 3/o-16

0.9995

1.0000 | q8-16

1.3745

1.2501.248

1.2501,248

1.2501.248

1.7501.748

f .7501.748

1.7501.748

1.7501.748

1.750't.748

1.7501.748

1.7501.748

2.1252.123

1.3750 It/"-13 I 1.501374s1 ' I

1.3750 1r/r-13 | 1.501.3745

1.3750 1t-13 | 1.so1.374s I I

LAZãAlr/2-13 I 1.50

1.12

1.12

0.75

0.75

0.75

1.00

1.00

't.00

1.00

1,00

1.00

1.00

1.00

1.250

1.250

1.750

1.750

1.750

r.750

2.125

2.125

2.125

2.',t25

2.500

4.25

7.312

4.25

8.125

5.25

8.125

5.25

8.125

5.25

8.125

8.125

1.65

1.6s

1.65

2,53

2.53

2.53

2,53

2.53

2.53

2.53

2.53

ç?nH

2.8902.860

5.9525.922

2.8902.860

5.8905.860

3.0t 52,985

5.9905.860

3,0202.980

5.8955.855

3.0202.980

s.8955.855

5,8955.855

1,75001 ri2-13 I 1.501.7495 I I

BF HOL€

ri

FRAME

DESIGNATIONS EL EM

EN

EP

Mln EO

ERMln

K€yBoat

ETTapSlze

TapDrlllDepthMax

BoltPono-trallonAllow-ence R

ES

Mln s

143JM and f 45JMl 1.156

ì 11.154l143JP ãnd 145JP I 1.156

\ \**

1.00000.9995

1.000010.9995

3ls-1 6

3ta-1 6

1.12

1 .12

0.75

0.75

1.156

1 .156

0.6400.610

1.5781.548

4.25

7,312

o.771.o.7s6 |

r.6s

o.77i-o.7s6 I r.ut

0.1 90-0.1 88

0.1 90-0. I 88

2.8902.860

5.9525.922

All dimensions in lnches, Reference NEMA Standards MG 1-1 8.614.

NEMA THREE.PHASE FRAME ASSIGNMENTSOPEN MOTORS-GENERAL PURPOSE

FPM

NEMAProgram

HP

3600

Oriq. 1952 1964- Rerate Rerate

1800


1200


900

Oriq. 1952 1964- Rerale Rerale

1

11/z

2

3

203 182 1437204 ',t84 1457

224 184 1457

203 182 1437204 184 1457224 184 1457

225 213 182f

204 184 1457224 184 1827

225 213 1847

254 215 2137

225 213 182r254 213 1847254 215 2137284 254U 21sT

5

71/z

10

225 213 182r254 215 1847

284 254U 2137

254 215 1847

284 254U 2137

324 256U 2157

284 254U 2157

324 256U 2547

326 284U 2567

324 256U 2547326 284U 2567

364 286U 284r't5

20

25

324 256U 2151

326 284U 25473645 286U 2s6T

326 284U 2547

364 286U 2567364 324U 2847

364 324U 284ï365 326U 2867404 364U 3247

365 326U 2867404 364U 3241405 365U 3267

NEMA THREE.PHASE FRAME ASSIGNMENTSOPEN MOTORrcENERAL PURPOSE(coNTtNUED)

FPM

NEMAProgram

HP

3600

Orig. f 9S2 19il- Rerate Rerate

1800

Orig. 1952 1964- Rerate Rerate

1200


900


30

40

50

60

3645 324S 284TS3655 3265 286T34045 364US 324TS4055 365US 326T5

365 326U 2867404 364U 32474053 365US 32674445 404US 364T5

405 365U s26T444 404U 3647445 405U 3657504U 444U 4047

444 404U 3647445 405U 3657504U 444U 4047

505 445U 405775

100

125

4445 404US 364T54455 405US 365T55045 444US 404TS

¿t455 405US 365T55045 444US 404TS5055 445US 4o5TS

505 445U 4057

4447

4457

4447

--4457150

200250

5055 445US 4o5TS

444TS

445TS

444TS

445TS

oræeÊri!{q?wr1:aT:rI

NEMA THREE.PHASE FRAME ASSIGN MENTSTEFC MOTORS-GENERAL PURPOSE

RPM

NEMAProgram

HP

3600

Orio. 1952 1964- Rerate Rerate

1800

Orio. 1952 1964' Rerate Rerate

1200


900


1

1 1/z

2

3

203 182 1437

204 184 1457

224 184 1827

203 182 1437

204 184 1457

224 184 1457

225 213 1827

204 184 1457

224 184 1827

225 2't3 1847

254 215 213I

225 213 1827

254 213 1847

254 215 2137

284 254U 2151

5

7Vz

10

225 213 1847

254 215 2137

284 254U 2157

254 215 1847

284 254U 2137

324 256U 2157

284 254U 215T

324 256U 2547

326 284U 256r

324 256U 254r326 284U 2567

364 286U 2847

15

20

324 256U 2541

326 286U 2567326 284U 2547364 286U 2567

364 324U 2B4T

365 326U 2861365 326U 2867404 364U 3247

NEMA THREE.PHASE FRAME ASSIGNMENTSTEFC MOTORrcENERAL PURPOSE(coNTINUED)

RPM

NEMAProgram

HP

3600

1952 1964Rerate Rerate

Orig.1800

Oriq. 1952 1964- Rerate Re¡ate

1200

Oriq. 1952 1964- Rerate Rerale

900


25

30

40

50

3655 324U 284TS

4045 3265 286T540ss 364US 324TS

4445 365US 326T5

365 324U 284r404 326U 2867405 364U 32474445 365US 3267

404 364U 324r405 365U 3267444 404U 3647445 405U 3657

405 365U 3267444 404U 3647445 405U 3657504U 444U 4047

60

75

100

4455 405US 364T55045 444US 365T55055 445US 405TS

44sS 405US 364T55045 444US 365T55055 445US 405TS

504U 444U 4047

505 44sU 4057

4447

505 445U 4057

4447

M5T125

150

¿l44TS

445TS

444TS

445TS445f

+-:qÏgR4+arqr'i:s_ {¡ì

iL!

F

¡i

POWER FACTOR IMPROVEMENTOF INDUCTION MOTOR LOADS

When power factor correction capacitors are used, the total correc-tive KVAR on the load side of the motor controller should notexceed the value required to raise the no-load power factor to unity.Corrective KVAR in excess of this value may cause over exc¡tationthat results in high transient voltages, currents and torques that canincrease safety hazards to personnel and possibly damage themotor or driven equipment.

Do not connect power factor correction capacitors at motor term¡-nals on elevator motors, multispeed motors, plugging or joggingapplications or open transition, wye-delta, auto-transformer start-ing and some part-winding start motors.

lf possible, capacitors should be located at position No. 2 (seediagram). This does not change the current flowing through moloroverload protectors. Connection of capac¡tors at position No. 3requires a change of overload protectors. Capacitors should belocated at position No. 1 for applications listed in Paragraph 2above. Be sure bus powerfactor is not increased above 95 percentunder all loading conditions to avoid over excitation.

BUS

COMBINATIONI- MOTORI CONTROLLER

CAPACITOR KVAR RATING FORPOWER.FACTOR IMPROVEMENTCAPACITOR MULTIPLIERS FOR KILOWATT LOAD

(To give capacitor KVAR required to improve power factor fromoriginal to desired value-see sample below.)

li

ORIGINALPOWERFACTOR,PERCENT

DESIRED POWER FACTOR-PERCENT100 95 90 85 80

60626466687072747677787980818283848586878889909192939495969799

1.3331.2661.2011 .1381.0781.0200.9640.9090.8550.8290.8020.7760.7500.7240.6980.6720.6460.6200.s930.5670.s400.5120.4840.4560.4260.3950.3630.3290.2920.2510.1 43

1.0040.9370.8720.8090.7490.6910.6350.s800.5260.5000.4730.4470.4210.3950.3690.3430.3170.291o.2640.2380.2110.1830.1550.1270.0970.0660.034

Assume100 K\power I

KVAR r¿

rmprove80 percmultiplyimultipliewhich giNearest(60 KVAommenc

0.7130.6460.5810.5180.4580.4000.3440.2890.2350.2090.1820.1560.1300.1040.0780.0520.206

total plan'/at60actor. C¿

ting necelpower fr

ent is fong KW (1

r in table (

/es KVAFstandard

R) shouldled

0.5830.5160.4510.3880.3280.2700.2140.1590.1050.0790.0520.026

,load is)ercentrpac¡tor;sary toLctor tornd by00) by0.s83),(58.3).rating

be rec-

'***.-..-,..-'."'.rír-õ'*::F< ¡- cI

NEMA SIZE STARTERSFOR THREE-PHASE MOTORS

mzooU'cÐm(t,.Tt

oÐ(t,-{Ð-lmÐØ

lE,45cryg¡-.'F'- 's

NEMAsrzE

MAXIMUM HORSEPOWERPOLYPHASE MOTORSFULL VOLTAGESTARTING

AUTO.TRANSFORMERSTAFTING

PART.WINDlNGSTARTING

WYE.DELTASTARTING

200v 230V 460V575V

200v 230V 460V57sV

200v 230V 460V575V

200v 230V 460V575V

0001

234567I9

1Vz

371/z

10254075

150

11/z

371/z

153050

100200300450800

25

102550

100200400600900

1 600

71/z

10254075

150

71/z

153050

100200300450800

102550

100200400600900

1 600

õ204075

'1

f0255075

150300450700

I 300

154075

150350600900

14002600

10204060

150300500750

1 500

10255075

r50350500800

1 500

154075

150300700

10001 5003000

NEMA SIZE STABTERSFOR SINGLE-PHASE MOTORS

ALLOWABLE AMPACTTTES OF NOT MORETHAN THREE TNSULATEo côruoúðrons

DERATING FACTORS FORPAGES 51 AND 53

Bæed on mtiert

26-3031 -3536-4041-4546-50

56-60

I

il

NEMASIZE

MAXIMUM HORSEPOWERSINGLE-PHASE MOTORS FULL.VOLTAGE STARTING

115 V. 230 V.0001

1Y2

23

'l,/^

1

23

1

23571/z

15

SIZE TEMPEFATURE RATING OF CONDUCTOFstzE

AWGkcmil

(140 Ð (f6l,Ð (194'Rw u 75.c(f40.Ð (167.Ð (r94'Ð

AWGkch¡l

TYPESTWt,uFt

TYPESFEPWt,RHt, FHWIlHHWt,rHwf,lHwNt,xHHWt,usEl, zwt

TYPESTÂ tBS, SA,srs, FEPi,FEPBT, MI.RHHt, Rrflv.2,lHHt+t,'rHHWf

, tHw-2tHwtû2,t sE-2, XHH,xlrHwt,þtHw-2. zw-2

IYPESTWt,uFl

IYPESFHÎ, Rt-Ml,lHHWl,'rltwf,rHwNl,xHHWt,usEl

TYPESTA,TBS, SA,sls, THHNt,rHHWl,THW-2,THWN-2,RHHi, RHW-zusÊ-2,XHH, XHHW,XHHW-zAil-2

)OPPEF

18

14

10I

2012513040

20t

3s150

141825130140f55

2oT 2cl25 30i30 4A

,rt35145

n108

64321

7085

10

100'1 15130

'110

130150

405565

85

50657590

100

60

85100'115

643

1

1t0zo3/04t0

145165

150

200230

170

260

0015

50

2A355580

150't75205

1t0z03/04/0

250300

400500

21524A26028032A

255 290285 32031 0 350335 380380 430

70 20590 23010 250

60 310

230

280305350

2503003504Aa500

700750800900

385400410435

420460475490520

475520

555585

285 340310 37532A 385330 395355 425

420435450480

600700750800900

10001 2s0150017502000

455495520545560

545590625650665

615665705735750

375 445405 485435 520455 54547A 560

s00

615630

1000125015001 7502000

NUMBER OFCURRENT-CARRYINGCONDUCTORS

PERCENT OF VALUES INTABLES AS ADJUSTEDFOR TEMPERATURE IFNECESSARY

4-67-910 -2021 -3031 -4041 &Above

807050454035

61,7071 -ÂO

4.1 L_OWAB LE AM PACtil ES OFsrNG LE-TNSULATED coñóùcronsRATED O-2OOO VOLTS, IN FREE AIR

4.LlgwABLE AMPAC|ÏES oF rHREEsING_LE-INSU LArED óöñóuöröäö1âIFp^o lopgvqtls, r so. ró ãlo:ð''-

Based on ambient air temperature of 30. C (86.F)(302" To 482. F). Lu nÃc È'fuav'oï"cXeLeBased on ambient air lemDerature ot 40. a t1ãt.tr\ .^- -^_^.,_-. 1--conductors see page 50.

of 40'c (104"F) For derating factors for moreCONDUCTOF

æc(140-F) 75C ,sc

(167.F) (ls-RTYPES Ì TYPESRHt, Rtfwt, TA.TBS, SA.

TYPES

UFt

TYPESlwt,uFt

kêmil

18161412t0I

30140f55

i¡t40160

205

35539544548C545

180210240280

855950

350395425485

540595620645700

608095

110130

150175

235

265

405

455500515

580

625710795

806110 4130 3150 2r/¡ 1

75100115

t55

25A30354A

61 5 6oc675 ;00700 75C

785 gCO

02C i

304A

BELOW TEIIP F

845960

10751 185

70-777S-8587-95

96.1 04105-tt31 1 4-1221 23-1 31132-1401.al -1 58159-176

te-ove.curenl protect,oi lo, ÞtJc1o, tæs.^zu.åmperes fo¡ Nj 12 and j: arærei t'U arumtnum ard CoOpê,.clao a _¡ ì¡¡ ¿¡re-T ùctors have been apóled

1.041.00

.96

.91

.87

.82

.76

.71

.5841

1.051.00

.94

.88

.82

.75

.67

.58

1 .081.00

.91

.82

.71

.58

-

1.041.00

.96

.91

.87

.82

.76

.-t 1

.5841

1 .051.00

.94

.88

.58

.33

Table 310 1B NECI

I

i

18

35t407s5I80

,r1

s0r70

80'105

120140

25A300350400500

600700750800900

1.081.00

.82

.71

.58

:'

96120143'160

186

7594

'f 09124'145

2503003s0400500

250300350400500

¿t5251288

229

297

244

308

169198227260

700750800 l

I

600700750800

looo1 5002000

1 0001 5002000

{t4PACllY CORF

t-l_ECTIÔN FÁ'T^C

f-l-c--=----

:MP C

41.5051-6061-7071 -8081-90

91 -1 00'101 -120'l2t -140141-160161-1801 81 -200201-225

IEMP.F

.90

.85

.80

.74

.67

.30

,97.94.90-ót

.79

.i1

.50

.35

.98

.95

.93

.90

.87

.79

.65

.58

.49

.35

.90

.85

.80

.74

.67

.52

=

105-122123-140'141- 158'1 59-176177-194195-212213-248249-284285-320321 -356357-392393-437

Reprnted wrth perm,ssron trom NFpA 70 Irrorecrro. assocrårro.. ot. n.v MÀ .l;::. l:t'9*'Elecrtca! code , coovrsìr 199: \ji.ir,E,.Èoos , o- o, r,,. NïÞ'Àio;,,i ;Ji.;::..ä:,;í.-:i.:? :. ::B;;:::ï.1;'i,.Ì J.ì :å'-;:;:li,i:.^lÌ.::d ;1 . ;

Fepnnted wrth permrss,on kom NFpA 7at.

t;+r::: 5x¿r,^".,xiils[*íi#:r+j|;_*lîi ;1fi :r=tr*tïJ. "i ?1i .]il;3i"" ix:

)oo)ooÞoo@@{{oooooooooo o

||l

o è@@Nooqooooooo o ooo

NO@O@ rÔ@

orDt

íÈ

ooz0cIoa

D3sof

P.

o3ooÐcoo

oo

I rIt o@o Àoooo!n €qjo

Il llrl l|| N ÞO@@o !@

@NNNJÀ@oNoÀ@NOO N@OO

fîflTdm<Þ!!!o_ m'ø RHjo

ùo@loo@@@ {!ooo oo OO NOJ

oooo o{N{@ o!oN@ !o@ooooo

g€qc9:sör3

I lt¡| IIIII @!qo@o@oOø JNèOONN èo{o

N !@@ fiåFÍ

iTl-ñ êB

fio

tl Ilrr Iilt oo{ I E9¡cfc=Q=

be

! €qjo

o@!¡@!¡oo

!ooo o@@ooN NNNJ

@qJ@oooo o@ No!

qcqãÈea

>qofoo>oo@@! {ooooooooooo ooooo taNiooo o @ONÀ

a>cÉ4ôøññ

6Tø'Þo> =Fjg f;Þsi'J-Þ9Põ Z@'YQúlr-lYcm>Þ iå#? sËmç¡oY>YO=Ð -t Zlrl

o ou,uEe,iõ+

dHm

zÌ¡teEsãõ:jdãà1.ôxf

¡d,. øø99

9dn

€oo-

ooõ.ß

9Coq=I

NJJJJJ-^o@o sNoY@{oo èNNJJ J J:@O {ô6NO@OàNXOOôOOooo oo ov

tttroqo{@@@@lllloN!50006

Il||||

¿ùÞôiÐ{{¡oboioioioioo@@oN @o{o6 6Õ

ttttooo{@@@@lll¡oN{aoooo

||||||@OONN NJ J JfJ J@ øN6 Þ f@ !OÀNOo {Jø @o6!@J@Oao@6NNNJfrrro@oN@ è J@!6 sñ{NOOè@NAO@O N

MAXIMUM NUMBER OF CONDUCTORS IN TRADE SIZES OF CONDUIT OR TUBINGcoNDUtT TFADE SIZES (TNCHES) 'l It( 1% 2 3'/, 4 5 6

TYPE LETTERSto¡rDucloR suEAWG, KCMIL

TW. XHHW(14 lhru 18)RH (14 & 12)

141210I

I752

1512

4

19157

44352612

60473617

997B6028

142111

8540

171131

6217684 108

FHW and RHH(wilhoul outercover¡ng), THW, lHHW

1412t0I

6441

t0I63

't6

1311

5

29241910

403226

65534322

937661

32

'143't 179549

19215712766

16385 133

THW

FEPB (6 thru 2),RHW and RHH

(wilhoul oulercover¡n9)

FH, THHW

D

4321

1

1

'I

,1

z'1

1

'I

,1

43221

7544

107654

161210o

6

17't5

I

3627232014

48Jb31

2719

bz47403425

635439

't 41'106

9l7857

1n2n30+o

1

1

1

1

II

I

21

5543

I7b

1210I7

't6

141210

21'18

'15

13

292420

49413529

250300350400500

4332'l

b5443

I7654

10II76

't6

1412t19

2320't8

1614

600700750

322

4 544

776

11

109

NEC CHAPTER 9, TABLE 3A

is nol lhe complete and otfic¡al posilion ol lhe NFP/\ on lhe roferenced srrbjecl, ívhìch is represenled only by tlre slîndard in ils cnlirely. '

c0r{DutT fRADE StZE {tilCHESl th x/t 11/¡ 11/z 2Y2 3 31/z 4 5 6

TYPE LEITEßSc0NDucï0fl stzEAWG ÍCMil

THWN.

THHN,FEP(14 thru 2),FEPB (14 thru 8),PFA (14 thru 4/0)PFAH (14 lhru 4/0)Z (14 thru 4lolXHHW (4 lhru500KcMlL)

14't210

A

13'10

6q

24181'1

ao2918c

695l32'16

947044

154114731Â

164'104

5116079 106 t36

64

2'|

421

1

1

64331

'1 I

7b5

15

I7

26tb1311I

191612

35292518

76473933)q

98605143ac

5494806760

1371169772

1lO2t03/0

1

'l

1

1

32,1

1

433t

765

'10

I76

15131'tI

21171412

aa22tö15

42

29oÀ

61514235

25030035040î

332'I

44

7655

10I

12't1

IA

20l7t5t3

28242119

50060070074ô

21

'l

1

433

54

43

7554

11II7

l6IJ11

XHHW 6600700

'1 3 91

131

1

1

211

1

1

301

1

47332

63443

81554

128I7

18513111n

MAXIMUM NUMBER OF CONDUCTORS INTRADE SIZES OF CONDUIT OR TUBING

NEC CHAPTEB 9, TABLE 38R^eprintqd with permission from NFPA 70-1993, National Electrlcal CodeP Copyright O1992, National F¡re Protection Association, Quincy, MA02269. Th¡s.reprinled material ìs not the complete and official posit¡on of the NFPÃ on the referenced subject, wh¡ch ¡s represenled only 6y theslan11d in

'rs lnl,:",t

MAXIMUM NUMBER OF CONDUCTORS INTRADE SIZES OF CONDUIT OR TUBING

NEC CHAPTER 9, TABLE 3C

¡gpl,¡tqg with permiss¡on from NFPA 70-1993, National Electr¡cal Codef'Copyright ()1992, National Fire prolection Assoc¡ation, Ouincv. MA02269 This reprinted material is not the complete and official pos¡tion ol the NFPÀ on the referenced subject, which is represenled;ñty úy tnestandard in its ent¡rety.

FHW,

RHH(wrth outer cover¡ng)

RECOMMENDED TRANSFORMER KVARATING AND COPPER CONDUCTOR SIZE --

'Transformer-240 volts

cio)o,

o!ooooooü¡otr-9ozNrl.

óC'voo(õl-oocooq)(r

U'l¡JoUJôl¡J

t-C)IUFoÈ,ÀFJÐÍtlôlzlflOIEIol

É,o

Þ?lt t-o5oozÉ,E9¡¡J F

sÞoõO¡i>-

i9E=

=9

=9ãÉ=o

SINGLE-PHAS iE MOTORS_23o VOLTST

TRANSFORMER

KVA

CONDUCTOR SIZES FOR VARIOUS MOTORTO TRANSFOBMER DTSTANCES (Fr.)

100 150' 200' 300' 500'11lz23571lz

33571lz

10

1010I66

III44

II643

6642'l

44200

t-zulGIEÐC)ooJJDlt¡tol-zu,tC)IEulÀ

L

=ü=YËÉt-o RRRF RRFF EE

EËfi FFPF FPFF Rf

ILJ:- ul

,úçJEúu,rs¡¡{=EõEÍÞÍ RRRS pp33 83

t¡Jal,

l¡lP

=;E<<JOu¡zo ggRF RREF FF

Eot-o=ltol¡lÀÈ

le õlô trlb elÈ23EøoEIEo (!

EoÈ =PE}?:' LoO j,Èõ a'=3 bõ: 3oo oø-- c6!¡¿ ô

ËGoõ.e io-øøaP ÞFg F +3g >r¡J g >u ;

.Ë9 -ee E' -se

E+þ+þrro<* rrcl< ..Eo

BËËËÈ€; È€ÈËgE€

3Ë:EË83ËËEËËË;Ë

HP

THqEE-PHASE MOTORS_z3o & 460 voLTS.

9l

MOTOR

VOLTS

TRANSFORMER

KVA

CONDUCTOR SIZES FOR VARIOUS MOTORl0 TRANSFORMER DTSTANCES (Fr.)

100' 1 50' 20iJ' 300' 500'11/z

11/z

22335571lz71/z

't01015152020252530304040505060607575

230460230460230460230460230460230460230460230460230460230460230460230460230460230460

ConsultLocalPowerCompany

33335571lz71lz

101015152020

1212121212121012I

12b

124

124

102I281

6't

41

404

't212121210128

126

124

124

102I2I1

60604

002

0002

1212121210'12I

126

124

124

102I261

b004

002

0002

00000

12121012I

126

'10

4104

102I1

606

004

00002

00002

2500

30000

1012I

126

104I¿I1

I06

0004

0004

00002

3000

3000

50000

500000

'Translormer-240 and 4BO volls

TRANSFORMER CONNECTIONSTYPICAL OIL-FILLED TRANSFORMERS TRANSFORMER CONNECTIONS

TYPICAL OIL-FILLED TRANSFORMERS

SINGLE-PHASE TO SUPPLY 120-VOLT LIGHTING LOAD'The transformer is connected qetween h¡gh voltage line and load with the1 20/240-volt winding connected in parailer. îhis conrèctiõn ¡s used where ihèro,ao ts comparatlvety small and the length of the secondary c¡rcu¡t is short. lt isonen used lor a s¡ngle customer. Dotted line ¡ndicates tahk is grounded.

ç!1,¡_G LE--PHAS E TO S U p pLy 1 20 t 240_ g_Wt R E Lt c HTt N GAND POWER LOAD-

Here lhe 1 ng is connected in series and the mid_oointbrought o_ut e-to serve oorn ieo anãããoìòlt tä;;';"ñü:neously. Th ed in mosr urban ã¡ùiuut¡on c¡rcuirs D;n¿áli;;indicates ta

'lt is recommended that all t¡anslormers b€ connected as shown on themanufacturer's nameplale.

DELTA-DELTA FOR LIGHTING AND POWER-

üt'"i[åsË'ffi;¡,[:l :ffi:,H"'"'J,îJü:ffsil""#'F'5å".?:,.ll: |;,å';ffr#xlAs shown ¡n d¡agram; the mid{ap ofunded. Thus, the small liohtinq lôad

the secondary of one rransformer is g?oun-oeo. ïhñ,lhã'ilät t"þüffidiãjärs connected across the transformer-with.t¡re m¡o-iâp- ano ttre gÌoünã ;"ãhe sinste-phasè ltÍ''trg Ëäd iåã-räãr'iËðrs.@nnection requires spec¡al wan_hourall utilities. Dotlcid line ihdicates tank ofis qrounded.

)til

I

b

Ii

iJ

tP

I

IÞ

l

IP

ß

II

i.ri

I

þ

I

F:

PRIMARV

3.PHASE 3.WIRE

s-p¡nsE powen LOaD

SECONDAFY

3-PHASE 4-WIRE

3-PHASE 3.WiRE

3-PHASE POWEB LOAD

SECONDARY

3.PHASE 4-WIRE

PR MARY

1 20 240-VOLTS

LIGHTING LOAD

^Å.

"/\.

"4.

E

¡i

È:Þ

1 20l240-VOLTSLIGHTING LOAD

OPEN-DELTA FOR LIGHTING AND POWER-

'll ls recommended that all translormers be connected as shown on fhemanufaclurer's nameplate.

TRANSFORMER CONNECTIONSTYPICAL OIL-FILLED TRANSFORMERS

PRIMAÊY3.PHASE 3

3-PHASE POWEFì

cB oÅ.

".â\Y.DELTA FOR POWER-

B

oÅ"

bc

r 20 240-votlsLIGHTING LOAD

Y-DELTA FOR LIGHTING AND POWER'

'lt is recommended that ail transformers b€ connected as shown on themanufacturer's nameplate.

SECONDARY

TRANSFORMER CONNECTIONSTYPICAL OIL-FILLED TRANSFORMERS

PFIMARY3.PHASE 3.WIRE

NEUTFAL ^)

SECONDAÊY

3,PHASE 3-WIFE "/lI

OPEN Y.DELTA-

PRIMARY3-PHASE 3

SECONDARY3.PHASE 4.

3.PHASE 4 W{RÊr 20,208 Y VOrrSoR 277 .180 Y VOLIS

È

E

NEUTRAI

DELTA-Y FOR LIGHTING AND POWER-

'lt is recommended thet all translormers be connected as shown on themanutacturer's nameplate.

B

TRANSFORMER CONN ECTIONSTYPICAL OIL-FILLED TRANSFORMERS

TRANSFORMER CONNECTIONSTYPICAL DRY-WPE TRANSFORMERS

PRIMARY: 480 Votts DettaSECON DARY : 20By I 12O Votts*

PRIMARY: 480 Votts DettaSECONDARY : 240 Votts Detta/t 20

H2

'lt is recommended that ell transformets be connected as shown on themanUlaclUrer's nameplale

cB

oÅ.

1 20 208 Y VOLTSOR 277 480 Y VOLTS

Y-Y FOR LIGHTING AND POWER'

"^"

Volts*PRIMARY3.PHASE 4NEUTRAL

cB

cba

5

Ë

3-PHASE 4SECONDAFìY

YIY_4UTOjRANSFORMERS FOR SUppLytNG powERFROM A THREE-PHASE, FOU R:úVIRt'Sibî'EM'When thesma,, the ii".ä,,?tX1,"Bii,nï;aulotransftral of the necessary that.the neu_

circuits sh system neutral. Branch

'lt is recommended that âil transformers be connected as shown on themaqrrfactUre.'s namenlal¡

PRIMABY

PRIMARYVOLTS

CONNECTPRIMARYLINES TO

CONNECTSECONDARYLINES TO

480 H1, H2, H3SECONDARY VOLTS208 x1, x2, x3120,1 PHASE

X1 to X0X2 to X0X3 to X0

PRIMARYVOLTS



480 H1. H2. H3SECONDARY VOLTS240 X1, X2, X3120 X1, X4 or

x2. x4

TRANSFORMER CONNECTIONSTYPICAL DRY-TYPE TRANSFORMERS

PRIMARY:120/240 VottsSECONDARY : 12Ot24O Votts*

rlt is recommended that all trensformers be connecled as shorf,n on themanufacturer's nameplale.

TRANSFORMER CONNECTIONSZIG-ZAG CONNECTION

to make th s con-mer stransforoads.

240 volt trlightrng o

POINTA BORCTONEUIRALYIELDS277 VSINGLEPl.lAsE4 WIRE

TRANSFOFMEFìNO2

TRANSFORI\,IERNO3

The se.condary of one phase is connected in series with the primaryof another phase, thus changing the phase angle.

It is recommended that all transformers be connected as shown on thel¡?n'rti ^l ¡-."c ñ.ñônl1.r

Normal y a 480nect¡on tor 277

INPUI480V (303 WIRE

PRIMARYVOLTS


INTER-CONNECT


240 H1-H4 H2 to H3120 H1-H3 &

H2-H4SECONDARY VOLTS240 X2 to X3 X1-X4120/240 X2 to X3 x1-x2-x4120 X1 to X3

X2lo X4X1-X4

TRANSFORMER CONNECTIONSTYPICAL THREE-PHASEBUCK AND BOOST CONNECTIONS

INPUT1

OUTPUT

OPEN DELTA-

OUTPUT

OPEN DELTA-

Diagrams are for boost. Forbuck, reverse input andoutput, except for wye dia-gram, which cannot be re-versed.

The symbol "O" used inthese connection diagramsindicates where to field-install the overcurrent pro-tective device, typically afuse or circuit breaker.

'll ls recommended that ail rransformers be connected as shown on themanufacturer's nameplate.

INPUT

X3

X1

2

H4

H3 cJ

"rd

#

H4 1

x1

H4

H2

H1

x2

X1

2

INPUT ONLY

r xì

TRANSFORMER CONNECTIONSTYPICAL SINGLE-PHASEBUCK AND BOOST CONNECTIONS

Dlagrams are for boost. For buck, reverse lnput andoutput.

The symbol "O" used in these connection diagrams indicateswhere to field-install the overcurrent protective Oãv¡ce, typically afuse or circuit breaker.

'lt ls recommended that all transformers be connected as shown on lhemanUfaalurer's ne.r¡eplrte

INPUT

INPUT

FULL.LOAD CURRENTSTHREE-PHASE TRANSFORMERS

FULL.LOAD CURRENTSSINGLE-PHASE TRANSFORMERS

VOLTAGEVoLTAGE (LINE TO LINE)

KVARATING 208V 240V 480V 600v 2400v 4160V

3 83 72 36 29 72 4i6 166 14.4 72 58 1.44 83I 25 21.6 10.8 87 2.18 1.2a

15 41.6 360 18.0 14.4 36 2122.5 62 54 27 21.6 54 3125 69 60 30 24 6 3.530 83 72 36 29 72 41537.5 104 90 45 36 9 5.245 125 108 54 43 10.8 6.2550 139 120 60 48 12 775 208 180 90 72 18 10.4

112.5 312 270 135 108 27 15.6150 4't6 360 180 144 36 20.8225 625 542 271 217 54 31.2300 830 720 360 290 72 41.5500 1 390 1 200 600 480 120 69.4600 1 665 1443 722 577 't44 83750 2080 1 800 900 720 180 104

1 000 2775 2400 1 200 960 240 1391 500 41 50 3600 1 800 't440 360 2082000 55s0 4800 2400 1 930 480 2772500 6950 6000 3000 2400 600 3465000 1 3900 r 2000 6000 4800 1 200 6947500 20800 1 8000 9000 7200 1 800 1 040

1 0000 27750 24000 1 2000 9600 2400 1 386

KVARATING 120V 208V 240V 480V 600v 2400v

'1 8.3 4.8 4.2 21 17 .421.5 12.5 7.2 62 3.1 2.5 622 16.7 9.6 8.3 4.2 3.3 .833 25 14.4 12.5 6.2 5.0 1.255 41.7 24 20.8 10.4 8.3 2.17.5 62.5 36.1 31.2 15.6 12.5 31

10 83.4 48 41.6 20.8 16.7 4.1615 125 72 62.s 31.2 25 6.2525 208 120 104 52 41.7 10.437.5 312 180 156 78 62.s 15.ô50 417 240 208 104 83.s 20.875 625 361 312 156 125 31.2

100 834 480 416 208 167 41.6125 1042 600 520 260 208 s2.0167.5 1 396 805 698 349 279 70.0200 1 666 960 833 416 333 83.3250 2080 1 200 1 040 520 417 104333 2776 1 600 1 388 694 555 139s00 4170 2400 2080 1 040 835 208

For other KVA ratings or voltages:

Amperes = ryTä$@

For other KVA ratings or voltages:

Amoeres_ KVAx1000' Volts x 1.232

SEMICONDUCTOR SYMBOLS ANDCONNECTIONS

SILICONMEOIUM-CURRENTRECTIFIER

LOWCURRENTscR

POWER.TABSCR

cåthode

tab & anode

9atecñamfergate

anode

SEMICONDUCTOR SYMBOLS ANDCONNECTIONS

---æ-

___|K_

TRANSISTOR SYMBOLS ANDCONNECTIONS

È

NPNTRANSISTOR

NPNTRANSISTOR

PNPIRANSISTOR

SILICONUNIJUNCTIONTRANSISTOR

BBE

ÐmLU'-{o¡c)ot-oÐoo0mU'

äisã8fHflËådiËo9.o

Ðm2(Í,

oÐoooÐooom

| (oco\¡o(¡À(,Nro aa1^IE¡GI -Efã =¡'"8p

=CL

ooãi Qaoooooo: ooooooôooooooooooooooooooooo

=trËõ'

¡+ t+ t+ t+ t+ t+ t+8óS à3t;:ss"-oõ-ÐIoo

()ooÐ@

zoan

Øm

=

cgo

-{ooq)fC)o

cgo

I9_oq)fC)o

Nfo-U)õ'f

õ'g):t

ft(oco

f\)=o-a.(o=õ'q)f

ll(oco

Ø

(tõ'f

õ'9)Jl](oco

U,

Ø(of

õ'ÞJ

fl(oc(D

5#dò 2.9.<qØooo5aaof Í

tro =ûf='cIfJ¡9=o =ocofúã !.a l?,fgã'Ð=oicr

}APACITOR COLOR CODES4ICA CAPACITOR COLOR CODE

Colo¡Charac-leristic'

Capacitance

CapacitanceTolerance

D-C WorkingVoltage

OperatingTemperatureRange

1st & 2ndSlgnificantFigures Multiplier

BlackBrownRedOrangeYellowGreenBluePurpleGrayWhiteGoldSilver .

A(EA)BcDEF

01

234567I9

1

101001 00010000 (ErA)

0.10.01 (ErA)

+20% (EtA)+ 1o/o

+2o/"

+5o/o

-r1/z7o (EIA)+1O/"

100 (EtA)

300

500

1000 (ErA)

-55'to +70'C (MtL)

-55'to +85'C

- 55' to + .t 25'C

-55" to +150"C (MlL)

Denotes specifications of design involving Q factors, temperature coefficients, and production test requirements.

CONVERSION FACTORS

MULTIPLY

LENGTHCentimetersFathomsFeetFeetlnchesKilometersMetersMetersMetersMilesMilesRodsYards

BY

.39376.0

12.0.3048

2.54.6214

3.28139.37

1.0945280.0

1.6095.5

.9144

TO OBTAIN

lnchesFeetlnchesMetersCentimetersMilesFeetlnchesYardsFeetKilometersYardsMeters

XXXXxXXXXXXXX

AREAAcresAcresCircular milsCircular milsSquare centimetersSquare feetSquare feetSquare inchesSquare metersSquare milesSquare milsSquare yards

x 43560.0x 4840.0x 7.854x10-7x .7854x .i55x 144.0x .0929x 6A52x 1.196x 640.0x 1.213x .8361

: Square feet: Square yards: Square inches: Square mils= Square inches= Square inches= Square meters= Square centim.= Square yards= Acres= Circular mils= Square meters

VOLUMECubic feetCubic feetCubic inchesCubic metersCubic metersCubic yardsGallonsGallonsLitersLitersOunces (fluid)Ouarts (l¡quid)

XXX

XXxXXXXX

.02837.481

.55413s.31

1.308.7646.1 337

3.785.2642

1.0571.805

.9463

Cubic metersGallonsOunces (fluid)Cubic feetCubic yardsCubic metersCubic feetLitersGallonsQuans (liquid)Cubic inchesLiters

CONVERSION FACTORS

MULTIPLY

FORCE AND WEIGHTGrams xKilograms xNewtons xOunces xPounds xPounds (force) xTons (short) xTons (short) x

TORQUEGram-centimeters xNewton-meters xNewton-meters xOunce-inches xPoundjeet xpound-inches x

ENERGY OR WORKBtu xBtu x

POWERBtu per hour xHorsepower x

Horsepower x

HorsepowerKilowatts

PLANE ANGLEDegreesMinutesMinutesQuadrantsQuadrantsRadians

X

X

xX

X

X

XX

Pounds are U.S. avoirdupoisGallons and quarts are U.S.

746.01.341

.0175

.016672.9x10 4 -

90.01.5708

57.3

TO OBTAIN

: Ounces: PoundsPounds (force): GramsGramsNewtons

= Kilograms: Pounds

Ounce-inchesPound{eetPound-inches

= Gram-centimetersNewton-meters: Newton-meters

: FoofpoundsGram-calories

WattsFoot-pounds

per minuteFoot-pounds

per secondWattsHorsepower

RadiansDegreesRadiansDegreesRadiansDegrees

BY

.03532.205

.224828.35

453.64.448

907.22000 0

.0139

.73768.85.|

72.01.3558

.113

778.2252.0

.29333000.0

550.0

MISCELLANEOUS FORMULAS

OHMS LAWOhms = Volts/Amperes (R = E/l)Amperes = Volts/Ohms (l : E/R)Volts = Amperes x Ohms (E = lR)

POWER-A-C CIRCUITS

Efficiencv _ 746 v Oulput Horsepower' lnput Watts

Three_phase Kilowatts _ Volls x Amperes x Power Factor x 1.7321 000

Three-Phase Volt-Amperes = Volts x Amperes x 1132

Three-Phase Amperes =

Three-Phase Efficiency =746 x Horsepower

Volts x Amperes x Power Factor x 1.732

Three-Phase Power Factor =

Single-Phase Amperes =

Single-Phase Efficiency =

Single-Phase Kilowatts - volts x Amperes x Power Factor1000

746 x fl9¡56psì/vg¡Volts x Efficiency x Power Factor

746 x HorsepowerVolts x Amperes x Power Faclor

single-Phase Power Factor = --llPut wg!9-Volts x Amperes

Horsepower (3 phase) - Volts x Amperes x 1.732 x Etf¡c¡ency x Power Factor746

Horsepower (1 Phase) - VoltsxAmperesxEtficiencyxPower Factor746

POWER-f>C CIRCUITSWatts = Volts x Amperes (W = El)

Amperes=ffi(r =wE)

Vohs x Ampejg:_I_Eflgielelñorsepower

SPEEf}-A-C IIACHINERY

synchronous neru = H"Êt ,ã,120

Percent Slrp - Svnchroneus RPM - FglL-!-oad RPM . 100' Svnchronorrq RPÀ4

VoltsxAmperesxl.T32


MOTOR APPLICATION

Toroue tlb -n ,- Horsepower x 5250, RPM

Horseoower _Torque (lb.-ft.) x RPM' 5250

TIME FOR MOTOR TO REACHOPERATING SPEED (seconds)

Seconds _ WK'x Speed Change308 x Avg. Accelerat¡ng Torque

WK: = Inertìa of Rotor + lnertia of Load (lb.-ft.')

Average Accelerating Torque = [(FLT + BDT)/?] + BDT + LRT3

FLT = Full-Load Torque BDT = Breakdown TorqueLRT = Locked Rotor Torque

Load wK' (at motor shaft) =$'(Load) x Load RPM:Motor RPM,

sHAFr srREss (P.s.r.) = RPffiåffi-lrã.fRESISTANCE - TEMPERATURE

Rc=Rnx (K+Tc)

(K + Tr)

R"=¡"" (K+T')(K + T")

K =234.5-Copper= 236 - Alum¡num- 180 - lron- 218 - Steel

Fì" = çs¡6 Res¡stance ('C)R' - Hot Resistance ('C)Tc = Cold Temperature ("C)T" = Hot Temperature ('C)

VIBRATION

D = .318 (V/Hz)V = r(Hz) (D)A - .051 (Hz)'(D)A = 016 (Hz) (V)

D

Hz

- Displacement (lnches Peak-Peak)= Veloc¡ty (lnches per Second Peak)- Accelerat¡on (g's Peak)- Cycles per Second


VOLUI'E OF LIOUID IN ATANKGallons=5.875x8xHD = Tank Diametør (ft.)

H = Helght of Uquid (ft.)

CENTR¡FUGAL APPUCATIONS

Afllnlty l¡wr for Centrllugal Appllcaüonr:Flow RPM,

Flow¡ RPM¿

Pres' _ (RPM,),

Presa (RPM4,

BHP, _ (BPM,)'

BHP¿ (RPM'!

For Pumpa:

BHP =

BHP =

BHP.

BHP.

BHP -

Head in Feet = 2.31 PSIG

For Fan¡ and Blowcrs:

CFM x PSF33000 x Efficlency of Fan

CFM x PIW63¡t4 x Efic¡ency of Fan

CFM x PSI229 x Efficiency of Fan

Whcrc:BHP - Brake HorsepowerCFM - Cubic F€et per MinuteFT - Fe€tGPM - Gallons p€r Minut€PSI - Pounds per Square lnchPSIG - Pounds p€r Square lnch GravityPSF - Pounds p€r Square FootPIW - lnches of Water GaugeSpeclfy Gravity of Water - LO

TEMPERATURE CONVERSION TABLE

Locate known temperature in "C/.F column. Read con-verted temperature in "C or oF column.

"c "cfF "F "c "c/"F OF "c "c/"F "F-45.4-42.7-40-37.2-34.4-32.2-29.4-26.6-23.8-20.5-17.8-15-12.2-9.4-6.7-3.9-1.1

1.7

4.4

7.2

10

12.8

-50-45-40-35-30-25-20-15-'t0-5

0

5

10

15

20

25

30

35

40

45

50

55

-58-49-40-31-22-13-4

5

14

23

32

41

50

59

68

77

86

95

104

113

122't31

15.5

18.3

21.1

23.9

26.6

29.4

32.2

35

37.A

40.5

43.4

46.1

48.9

51.6

54.4

57.1

60

62.7

65.5

68.3

71

73.8

60

65

70

75

80

85

90

95

100

105

110

1't5

120

125

130

135

140

145

150

155't60

165

140't49

158

167

176

185

194

203

212

221

230

239

248

257

266

275

284

293

302

31f

320

329

76.5

79.3

82.1

85

87.6

90.4

93.2

96

98.8

101.6

104.4

107.2

110

112.8

115.6

118.2

120.9

123.7

126.5

129.3

132.2

136

170

175

180

185

190

195

200

205

210

215

220

225

230

235

240

245

250

255

260

265

270

275

338

u7356

365

374

383

392

401

410

419

428

437

446

455

464

473

ß2491

500

509

5f8527

.¡: (9/5 x "C) + 32'C = 5/9 fF - 32)

DIMENSIONS, WEIGHT AND RESISTANCEOF SOLID ROUND COPPER AND ALUMINUM WIRE

WIREstTF DUI¡IEfER

D-C R€S|ST tAT zFC (6m)1m% cotpufCOPPEß

AWGt0ü.nnH

CIRCULÀßxlls

OHTS P€BX FEFÍ OHTS PER T8.

4to3/02/Ol/0

1

2

45

678I

10

1112131415

1617'18

1920

2122232425

26272Aæ30

3l32333435

36373€3940

4142¿ti|

44

0 460040963648.3249

289325762æ4æ431819

1 6201¡14312851'144

.1019

.0907

.0808

.07æ

.0641

.o571

.0508

.0453

.0403

.03s9

.0320

.0285

.025s

.022s'

.0201

.01æ

.0159

.o142

.0126

.01 13

.0100

.0089

.0080

.m7100630056

.00so

.m450040

.0035

.0o31

.m280025oo22.m20

21 1600167800133100105600

8¡|69066360526204174033090

262402æ?o165101 309010380

82306530518041103260

2580205016201290f020

91264051144320

253æ2159128100

79.264.O50.439.731.4

250æ2160'12.2

9.61

7.U62s4.U400

0 0490106182.0779309825

1239.1563.1 971.2485.3134

.39524981.6281.7925

0.9988

t.261592.O02.523.18

4.O25.056.39805

10 1

12A16220_325.732.4

41 051 46s.341.2

r04

131162206261331

415512648u7

t080

1æ0166021402590

0.00007652.00012180001 9350003075

.000:1891

.000778roo1237

.001 967

.003130

.004975

.007902012s702000.03180

.0506

.0804

.127_203.322

.5140.814'r.302.063.27

519836

13_121.0334

536843

136210343

546836

1 35021803480

54808360

13400NM37100

557008næ

r46000214m0

DIMENSIONS, WEIGHT AND RESISTANCEOF SOLID ROUND COPPER AND ALUMINUM WIRE

D-C RES|St^ltCE

^T 20T (68T)

61-8% COXnilnflVrfY WEIGHT WIREST'FALUilnUfit COPPER ALUtt¡tut

OHIÍS PERT FFFT OHTS P€R TB

IB. PEF

T FEEÍFEEÌ PERt¡

tB. PEB

T FEEÍFEEÍ PERL¡ twG

0 079301 000

.1261

.1590

200525æ31894021û726395

0 80601.0161.282f .616

2.M2.573-244.085.15

650818

103130164

20726232941.5524

664832

106131168

212262333422536

:,

ow472.000ela2.001030o01d37

.002603

.004141

.006584

.0 t 047

.0't 6ô6

o2u7.o4206.06688.10651691

.269

.4æ0.6791.081.72

2.744.336.9r

110174

27.644.569.9

112178

285449724

1 t20r830

2910¿1450

71801 1600't8so0

29200

640 5507 Iû2.8319.s

253 3200 9r59 3126 3100 2

79 4463.0349.9839.6231./t¡ì

24919815 7124987

7.816214.92390310

2ß1.941551.220 970

.765

.610

.48 1

.387

.303

.240

.194

.153

.120

.0s49

.o757

.0613

.o4u

.0371

.0291

0237.0189.0147.0121

1 5611.9692.Æ23.t30

3.9474.97862787.9159.984

12.59'r 5.8720.0125.2431 E2

4.250.663780.4

101

128161Ð3256323

Q7516&7818

1tr10

1310't640208025903300

4170516065508320

10500

132001630020600270Æ034¿lO0

421tO5290068300æ600

17154 4122 597 14

77 0261 0848 4438 40?o 47

24 1519 1615.2012.059.56

7.576.O24.773.773.00

2.371.89'|.s0'L190.g¡liì

.748

.590

.471

.371

.295

.233

.185

.146

.1 18

.0921

.0730

.0590

.0465

.0365

.0289

.0230

5.1356 478Lr63

10.29

12.9816.3720.6526.0432.A2

41 4152 1965 7982 9S

105

13216621026s33il

422529666840

1060

13401690212027ú3390

4æ0541068508470

10900

137001690021 500274Ø34600

tu*

=

4to3/02to1t0

1

2345

67I9

'10

111213'1415

16171819m2'l2.ZJ2425

27ææ30

3132339435

36373839¡t0

41424344

PROPERTIES OF VARIOUS METALSAND ALLOYS

IrL?blRcllst Yltv to-8OHM cní. m¡rãrec

Tcmp. Coctl.of Rorlrtlvltyne.r 2eCfC

Wolght^Lb¡./ln.r

ThcrmâlCond.2ffcrv/cm.oC

ThcrmalErpan.lonncâr 2(rClx lo-Þfcl

ìLltlngPolnt,ec

Alum¡num-pur€

-conduclorBery'limBismulñBrass, yolbw (65 Cu, 35 Zn)Bronze, commercial (90 Cu, 10 Zn)Câdmium---pureChromiumCobaltConstantan (55 Cu, 45 Ni)Copper-anæaled (1ACS)

-hard drewnGermaniumGoldlrEonel (76 N¡, 16 Cr,8 Fe)lndiumItrar (64 Fe, 36 N¡)lron-pureLaadMagn€6iumMercuryMolyùd6numMon€l (67 Ni, 3O Cu)

2.652.804.O

106.8 '6.43.96,83 '

't3.06.24

50,01.7241.n6

46.0 "2.35

98.1ô.37

80.09.71

20.654.45

96.05.7

48.2

T*.0.0040.0020.00190.00420.0030.006

r0.000020.00390.0038

0.0040.0000010.005000120 00650.00340.00370 00090 0050,0023

0 09750.09750.06680 3540,3060.3170.3120,2590.3190.321o32230 3220.1920.6973o.307o2640 28{t0.2840.4100 0630,3760,3685o 319

2.222.341.460.081.171.880.920.670.69o.213.91

0.s92.960.15o.240.110.750,35'L530,081.420,26

23.623.61 1.613.320.318.429.86.2

13.814.916.8

5.7514.21'1.53a|.0

1 1.829327 1

4.914,0

660657

12n271930

1045321

I 87514951290't 083'! 083937

1 0ô31425

156'14251536327650-39

26101 325

'at 0C"OHM - cfli.

PROPERTIES OF VARIOUS METALSAND ALLOYS-CONTINUED

¡h.rhlR.llltlvlty 1O-6OHll .cm. nca?ãnc

lomp. Cocll.of Rcrlstlvltynær 2ecPc

lY.lghl-[å¡./ln.o

lhe7mrlCond. 20'Crv/cm,'C

Th.rmôlErponrlonncrr 20pc(x lo-õrc)

ilclllngPolnt,t

N¡ckome (80 Ni, æ Cr)Nickel (99.4 Ni)NiobiumPalladiumPhosphor-Bronze (95 Cu, 5 Sn)Plat¡numSiliconS¡lverSte€l-câröon (.4..5 C. Bal. Fe)Ste€l-s¡licon (3 Si. Bal. Fe)Steel-stainlæs. 3O4Ste€l-stainlæs, 347Steel-slainless, 4l 0TanlalumThor¡umlinTitarúumTunOstonUran¡umZincZ¡rconium

108.09.5

12.510.81 1.010.64los .'

1.597-12

5072735712.4514.O12.O42.05.65

30.05.92

40.0

0 00010 0050.0040 0037

0.00393

0 0041

0 00380,00380.00460 0060.004s

oo0ø,z0 oo¡14

0 3030.3210.3100.4350.3't7o 7750,@410.3793o.2840.2760 2860.2850.2800 600o 4210.2630.16Ê0,69730 68ir0 258o2u

0.1340.610.520.70o.710.691.254.180.50.180.r50.'t6o.240.54o.370.630.411.670.271.t0o.21

13.013.373

11.817.8892.5

1971 1.0'1201701631 1.066

12523.O

8.44.67-14

33058

1¿too145024681 552't 00017691420

9611¿1801475

>1400>1400> 1480

30001 750

2321 670341 01 132419

1 852

DETERMINING THE POLARIZATION INDEXOF MOTOR AND GENERATOR WINDINGS

Knowing the polarization index of a motor or generator can beuseful in appraising the fitness of the machine for service. Theindex is calculated from measurements of the winding insulationresistance.

Before measuring the insulation resistance, remove all externalconnections to the machine and completely discharge the windingsto the grounded machine frame.

The polarization index is calculated as the ratio of the 1O-minute tothe 1-minute value of the insulation resistance, measured consec-utively:

POI.ARIZATION INDEX : Resistance after 10 minutesResistance after 1 minute

The recommended minimum value of polarization index for a-c andd-c motors and generators is 2.0. Machines having windings with alower index are less likely to be suited for operation.The polarization index is useful in evaluating windings for:

-Build up of dirt or moisture.

-Gradual deterioration of the insulation (by comparing results oftests made earlier on the same machine).

-Fitness for overpotential tests.

-Suitability for operation.The procedure for determining the polarization index is covered indetail by IEEE Standard No. 43.

TEM PERATURE CLASSI FICATION OFINSULATION SYSTEMS

II

I

FOR ELECTRICAL AND ELECTRONIC EQUIPMENT

INSUI¡TION SYSTEMT

Class A Class 105Class E* Class 120Class B Class 130

Class F Class 155Class H Class 180Class N Class 200

TE]IIPERATURE CI¡SSIFICATIOII

105"C120'C130'C

155'C190'c200'c

221"F248"F266'F

311"F356"F392"F

rtEEE Std. 1 .t 7.

nUsed in European €qulpment

The insulation systems are arranged in order of their insulationlevel and classified by a letter symbol or by a numerical value.The numerical value rerates to the temperature crassification ofthe insulation system.

The temperature classification indicates the max¡mum (hot-spot)temperature at which the insulation system can be operated foinormal expected service life.

ln general, all materials used in a given insulation system shouldbe rated for temperatures equal tó, or exceeding, lne tempera-ture classification of the system.

RESISTANCE TEMPERATUREDETECTORS (RTD'S)

METAL CHARACTERISTIC TCR'(O/O/'C)Copper 10.0Q @ 2S"C .OOg92Platinum 100Q @ 0'C .OOggSr*Nicket 120e @ 0"C .006z2*TCR is Temperature Coefficient of Resistance...DlN

Standard TCR is .003g5.

COMMON FRACTIONS OF AN INCHDECIMAL AND METRIC EQUIVALENTS

Fraction fÞcimal ttm Fraction Dec¡mal llm1k4 0.01562 0.397thz 0.03125 0.194Va¿ 0.04688 1 .191

1/'ta 0.06250 1.588sk4 0.07812 1 .9843ßz 0.09375 2.381

7/æ 0.10938 2.77Ath 0.12500 3.175s/64 0.14062 9.572

T3z 0.15625 3.96911/64 0.17188 4.366

Vte 0.18750 4.763

17ø+ O.2O312 5.1597hz 0.21875 5.55615/u 0.23438 5.953

1/c 0.25000 6.35017/u 0.26562 6.747ehz 0.28125 2.1441s/æ 0.29688 7.U1sAa 0.31250 7.93321/u 0.32812 8.334

1lhz

3/b

1*32

7Aa

1+32

't/2

0.34375 8.7314u 0.35938 9.128

0.37500 9.525

2sk4 0.39062 9.9220.40625 10.319

27/æ O.421AB 10.716

0.43750 '11 .1 13æ/64 0.45312 11.509

0.46875 1 1.906

31kr 0.48438 12.3030.50000 't2.7N

3164 0.51562 13.09717hz 0.53125 13.4943164 0.54688 13.891

s/te 0.56250 14.28A37/64 0.57812 14.684lehz 0.59375 15-08'l

æk4 0.60938 15.4785h 0.6250,0 1s.87511k4 0.64062 16.272

21hz 0.65625 16.669, 9ø 0.67188 17.0661l/ta 0.68750 17.463

15/64 0]0312 17.8592T3z 0.71875 ' 18.25647k4 0.73438 18.653

*¿ 0.75000 19.050alu 0.76562 19.44725hz 0.78125 19.844

51/64 0.79688 20.2411%a 0.81250 20.638s%4 O.A2ü2 21.09427hz 0.84375 21.431

sqb4 0.85938 21.8287h 0.87500 22.225

57/U 0.89062 22.6?I¿æhz 0.90625 23.0195e/64 0.92188 23.416

17la 0.9375051,64 0.95312

31ßz 0.96875

23.81324.2t924.606

6%4 0.98438 25.0031t1 1.00000 25.400

TAP DRILLS AND CLEARANCE DRILLSFOR MACHINE SCREWS

ScrewSize

Coarse Thread Fine Thread tlearanceDrill

BodyDia.TPI Drill TPI Drill

4

5

6

I10

12

14

u4

7'ta

3/a

74a

u2

o-n6

Yg

U4

,le

'l

1la

'tu,

17a

11b.

40

40

32

32

24

24

20

20

18

16

14

13

12

1't

10

II7

7

b

6

43

38

36

29

25

16

10

7

F

E,v6U

,,/a+

31/64

171",

2'62

49/U

,8

63la+

1?/u

17bz

1r14,

48

44

40

Jb

32

28

24

28

24

24

20

20

't8

18

16

14

14

12

12

't2

12

42

37

33

29

21

14

7

3

1

o25/64

29/64

33/64

37/ø+

1r/.ta

13ttø

tSt'tø

1E64

11W

11gta+

127/64

32

30

27

18

9

2

D

F

P

W

zg/u

3E6ø

37/64

4rl,l

4W

57/64

1W

1sbz

lshz

11362

117âz

.112

.125

.138

.164

.190

.216

.242

.250

.3125

.375

.4375

.500

.5625

.625

.750

0.875

1.000

1.125

1.250

1.375

1.500

jlrtII

GLOSSARY OF TERMS

AMBIENTTEMPERATURE

BASE LINE

BREAKDOWNTOROUE

EFFICIENCY

FOOT.POUND

FULL-LOADSPEED

FULL-LOADTOROUE

HERTZ

HORSEPOWER

tEc

INSUI-ATION

IIEGOHMMETER

NEC

NEMA

The t€mperatu¡e of the surroundingcooling medium.

A vibration r€adlng taken when amachino ¡s ln good operaüng condldonthat ls us€d as a ret€r€nce formonÍtorlng and anaþis.

The maxlmum torque a motor wlllproduce. Often r€ferred to as'pullouttorque' or "maximum torque."

The ratlo between us€ful workperformed and the Enorgy €xpended inproducing itThe amount of woü requked b raiso aone-pound weight a dis,tanc€ of ong fooL

Thê sp€€d at which rated horse-power is devgloped.

The torquo requir€d to produc€rated horsgpower at full-load speed.

The prefened tsrminology for "cyclesp6r s€cond."

A unlt for m€asur¡ng the power ofmotors. One horsepower oquals33,000 foot-pounds ol work perminute.

lntÊrnat¡onal Electrotechnical Com-mtsston.

Non-conductlng mat€r¡als separatingthe current-carrying parts of a motorlrom €ach other or fom lhe core.

lnstrumgnt for measuring insulatlonresistanc€.

National Electícal Code.

National Electrical Manufacturers

GLOSSARY OF TERMS - CONT¡NUED

PLUG.STOPPING

POLES

POUND-FOOT

RATEDTEIIPERATUREFISE

ROTOR

SLIP

STARNNGroRouE

STATOR

SYNCHRONOUSSPEED

IOROUE

Full-voltage phase rgv€rsal at fullspeed to stop or r€verse the ¡otat¡on ofa three-phase motor.

Tho numbêr of magn€tic pol€s s€t up¡nside the motor by tho placement andconn€clim of lhe windings.

Unit of torque, ln the Engl'rsh q61em, thatls a forcê of one pound, appll€d at aradius of one foot applied in a direc'tionperp€ndicular b the rad¡us am.

Th€ psrmisslble rlse ln temp€ratureabove ambient for a motor op€ratingunder load.

The rotating elem€nt of an ¡nduct¡onmachin€.

The percentage of difference bêtweensynchronous and operating speods.

The torque produced by a motor atresl wh€n poì'rrer b appl¡€d.

The stat¡onary part of a motor.

The maxlmum speed of an altern-at¡ng-cunent motor.

Equalto: Fr€quencyX 120

Number of Poles

Th€ rotatlng force produced bY amotor. Th€ un¡ts of torqu€ may b€€xpressed as pound-foot, pound-lnch(English syst6m), or nswton-m€ter(metr¡c systsm).

Analysis of the change ln measureddata over at least three datameasurement lntervals.

TRENDING

INDEXMOTOR DATA-ELECTF|CAL............. ..............-.PAGE

NEMA Code Letters for A-C Motors......_.-........... .............................17Currents, Full Load: D-C Motors.....-,-....-................._-.............................-1 3

Single-Phase Motors -.. . ....._... ...15SynchronousMotors........ ....... ............. .....15

Frame D¡mensions: IEC Foot-Mounted Three-phase Motors.......-..-......2gNEMA D-C Motors & Generators..............-----.-.......26NEMA Foot-Mounled A-C Motors & Generators.-...30NEMA Type C ..........34NEMA Type D ..........36

_ NEMA Types J otors .ggFrame Assignments: NEMA Three- .-...-....42

NEMA Three- .--..--...44Shatt D¡mens¡ons, NEMA D-C Moto .Zs

CONTRACTOBS

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Currents, Fu .................-.............-.....70

rransformer ...:.:....:.::::....:::.::..:.:...::.¿åTransformer S¡ze...............-.............5S

electrical - electrical engineering pocketbook handbook - koffler - 1993

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