CONTENTS

Vacuum Circuit BreakerB1

Features

Product Line-Up

Rating

Ordering Information

Accessories

Dimension

Control Circuit Diagram

Vacuum Circuit Breaker

B1-02

B1-04

B1-06

B1-09

B1-10

B1-11

B1-32

Vacuum Circuit Breaker7.2kV~36kV(IEC Std.)/4.76kV~38kV(IEEE Std.)

It provides a product with an integrated

technology, qualified atomic energy and various

voltage ranges.

It is a product incorporated with an accumulatedvacuum technology, operating device design andinsulation design.

It is developed conforming to IEC international standards as well as IEEE (ANSI).

It is a product that can be used at various voltage settings including 7.2kV, 17.5kV, 24/25.8kV, 4.76kV,8.25kV, 12/15kV, 27kV and 36/38kV.

B1-02

It ensures the stability by self-manufacturing the

vacuum interrupters.

We are manufacturing the vacuum interrupters forthe first time in Korea, accumulating the technologieson vacuum and vacuum applications.

We provide the optimal arc extinguishing medium withhigh-vacuum, high arcextinguishing capability.

Based on our product quality and technology, we deliver our goods to many global firms including GE.

The product stability and life is greatly improved

due to the solid insulation by applying molding to

the interruption part.

A core part of the interruption part, VI is molded andsolid-insulated to improve the stability and life ofthe product.

We are fully prepared for the surface discharge of vacuum circuit breaker by enhancing the insulation performance through the solid insulation.

It is easy to perform maintenance and compatible

with new. old products.

It uses the accumulated design data to display outstanding compatibility with old/new products.

It is designed to enable easier maintenance and CB can be inspected by simply checking the contact consumption and control circuits.

A cover made up of an insulation material is adopted to maximize the safety of operators

It reflects the trend of electric equipments by applyingnice design.

Class1E Vacuum Circuit Breaker For Nuclear Power Plant

It completed the seismic test, acquiring GENERIC

Class.

It completed the seismic test based on BroadbandGeneric Spectra of IEEE C37.98 and meets the seismicstandards of all nuclear power plants around the world.

It is well-known throughout the world as it

passed Class1E VCB performance test.

Class 1E VCB for nuclear power plants is anufacturedbased on the nuclear power certification system and ithas completed the development test complying withKEPIC, EED 1100-2005.

Its quality improved greatly with the superior

breaking function.

The breaking time and arc time is shorter than that ofother CBs, and it can be used under unfavorableconditions such as under gas and ion emission withoutany severe impacts on circuit switching, ground fault,high-speed reclosing and condenser bank switching.

B1-03Vacuuma Circuit Breaker

B1-04

Product Line-Up

The fall line up, various options to choose from!

40kA

31.5kA

25kA

20kA

12.5kA

8kA

1250A2000A3150A

1250A2000A3150A

630A1250A2000A

1250A2000A3150A

1200A2000A3000A

1200A2000A3000A

630A1250A2000A

1250A2000A

630A1250A2000A

630A1250A2000A

630A1250A

630A1250A2000A

630A1250A2000A

630A

400A

7.2kV 12kV 17.5kV 24kV 36kV25.8kV

IEC Standard

B1-05Vacuum Circuit Breaker

Outaoor

50kA

40kA

31.5kA

25kA

2000A

1200A2000A3000A

1200A2000A3000A

1200A2000A

1200A2000A3000A

1200A2000A3000A

1200A2000A

600A1200A2000A

4.76kV 8.25kV 15kV 38kV25.8kV

IEEE Standard

B1-06

Rating

25

31.5/40

20.8

32.5

52

65

104

Ratedbreakingcurrent[kA]

Ratedmakingcurrent[kAp]

4.76

Ratedvolatge[kV]

DesignationRatedcurrent[A]

Ratedbreakingtime[cyc]

Power-freqwithstandvoltage

[kV/1min]

LightningimpulsevoltageBIL

No-loadopentime[sec]

No-loadclosetime[sec]

RatedbreakingCapacity[MVA]

Ratedfrequency[Hz]

Ratings Dielectric strength Operating time

Ratedshot-time

withstand current[kA/3sec]

VVB□-07408S

VVB□-07612S

VVB□-07620S

VVB□-07120S

VVB□-07625S

VVB□-07125S

VVB□-6225M

VVB□-07140S

VVB□-07240S

VVB□-07340S

VVB□-12625S

VVB□-12125S

VVB□-1225M

VVB□-12140S

VVB□-12240S

VVB□-12340S

VVA□-15625S

VVA□-15125S

VVA□-1225M

VVA□-15140S

VVA□-15240S

VVA□-15340S

VVB□-17625S

VVB□-17125S

VVB□-17140S

VVB□-17240S

VVB□-17340S

VVB□-24613S

VVB□-24213S

VVB□-24625S

VVB□-24125S

VVB□-2225M

VVB□-25625S

VVB□-25125S

VVB□-2252M

KVA□-2140M

KVA□-2240M

KVA□-2340M

VVB□-36132S

VVB□-36232S

VVA□-38140M

VVA□-38240M

VVA□-38340M

KVAX-2625M

KVAX-2125M

KVAX-2225M

VVBX-25640M

VVBX-25140M

VVBX-25240M

VVBX-25340M

400

630

630

1250

630

1250

2000

1200/1250

2000

3000/3150

630

1250

2000

1250

2000

3150

600

1200

2000

1200

2000

3000

630

1250

1250

2000

3150

630

1250

630

1250

2000

630

1250

2000

1250

2000

3150

1200

2000

1200

2000

3000

600

1200

2000600

1200

2000

3000

15

17.5

12

24

25.8

36

38

25.8Outdoor

7.2

8

12.5

20

8 100

160

250

320

500

12.5

20

3

3 28 75 0.03 0.05

50/60 20 60 0.03 0.0525

40

20/25 65 25

31.5/40

20/25

20/25

31.5/40

31.5/40

65

65

3

3

750

750

50/60

60

25

25

65

104

3

3

650

1050

50/60

38

38 95 0.03 0.05

12.5

25

32.5

65

3

3

520

1040

60

12.5

25

50 125 0.03 0.05

31.5 82

3

3

5

2070

50/60

50/6031.5

40 104 263040 80

80

170

170

0.03

0.03

0.05

0.05

60

25 65 1120

1800

25

40 104 40

60 150 0.05 0.1

25

40

65

104

3

5

1120

1800

60

25

40

50 125 0.03 0.05

60 150 0.05 0.1

95 0.03 0.05

60

25

40

104 40

520

520

50/60

60

※Note) 1. 4.76kV 20/25kA VCB is available with same structure of 15kV 20/25kA VCB according to IEEE C37.09.2. No. of auxiliary contact can be adjustable. Please contact to our engineering team.

B1-07Vacuum Circuit Breaker

4.76

Ratedvolatge[kV]

Designation

Ratings

VVB□-07408S

VVB□-07612S

VVB□-07620S

VVB□-07120S

VVB□-07625S

VVB□-07125S

VVB□-6225M

VVB□-07140S

VVB□-07240S

VVB□-07340S

VVB□-12625S

VVB□-12125S

VVB□-1225M

VVB□-12140S

VVB□-12240S

VVB□-12340S

VVA□-15625S

VVA□-15125S

VVA□-1225M

VVA□-15140S

VVA□-15240S

VVA□-15340S

VVB□-17625S

VVB□-17125S

VVB□-17140S

VVB□-17240S

VVB□-17340S

VVB□-24613S

VVB□-24213S

VVB□-24625S

VVB□-24125S

VVB□-2225M

VVB□-25625S

VVB□-25125S

VVB□-2252M

KVA□-2140M

KVA□-2240M

KVA□-2340M

VVB□-36132S

VVB□-36232S

VVA□-38140M

VVA□-38240M

VVA□-38340M

KVAX-2625M

KVAX-2125M

KVAX-2225M

VVBX-25640M

VVBX-25140M

VVBX-25240M

VVBX-25340M

54

57

98

102

98

102

145

270

285

310

107

121

130

270

285

310

107

121

130

270

285

310

107

121

270

285

310

130

145

130

145

180

130

145

290

350

370

370

530

550

530

550

580

1000

1020

1060

1750

1800

1900

2000

15

17.5

12

24

25.8

36

38

25.8Outdoor

7.2 O-0.3s-CO-3m-CO

O-0.3s-CO-3m-CO

O-0.3s-CO-3m-CO

O-0.3s-CO-3m-CO

O-0.3s-CO-3m-CO

O-0.3s-CO-3m-CO,

CO-15s-CO

O-0.3s-CO-3m-CO

O-0.3s-CO-3m-CO

O-0.3s-CO-3m-CO

4NO 4NC

6NO 6NC

6NO 6NC

6NO 6NC

6NO 6NC

6NO 6NC

8NO 8NC

8NO 8NC

10NO 10NC

6NO 6NC

IEC 62271-100 : 2008

IEC 62271-1 : 2011

Motor

Drive

Spring

Mechanism

Standard

Operating

& control

voltage

DC 110V

DC 24/48V

DC 220V

AC 110V

AC 220V

applicable

Closing

operation

less than

5A

Open

Operation

less than

5A

Motor

charging

less than

2A

Fixed type : N

Draw out :

E/F/G

E : w/o

shutter

F : w shutter

G : shutter

&

bushing

For Outdoor

type

IEC 62271-100 : 2008

IEC 62271-1 : 2011

IEC 62271-100 : 2008

IEC 62271-1 : 2011

IEC 62271-100 : 2008

IEC 62271-1 : 2011

IEC 62271-100 : 2008

IEC 62271-1 : 2011

IEC60056

IEC 62271-100 : 2008

IEC 62271-1 : 2011

IEC 62271-100 : 2008

IEC 62271-1 : 2011

IEEE C37.09 : 1999

(R2007)

IEEE C37.09 : 1999(R2007)

IEC 62271-100 : 2008

IEC 62271-1 : 2011

ES-5925-0001(IEC 62271-100/IEEE C37.09)

※Note) 1. 4.76kV 20/25kA VCB is available with same structure of 15kV 20/25kA VCB according to IEEE C37.09.2. No. of auxiliary contact can be adjustable. Please contact to our engineering team.

Control and supply method

voltage current

Oprating sequenceAuxiliarycontacts

Weight(CB only)

Applied standardRated supply

& control voltageOperatingmechanism

Installationmethod

MOC Number of contacts / TOC Number of contacts

O-0.3S-CO-3min-CO

5,000 times

Spring Operation Mode

DC 125V

Inrush 8.5A, steady state 1.5A

DC 125V, 5A

< 15 sec

< 0.06 sec

< 0.05 sec

2NO+2NC

5NO+5NC / 3NO+3NC

For Nuclear Power Plants

288 kg / 318 kg / 318kg

B1-08

Rating

8.25kV

1200A / 2000A / 3000A

60 Hz

1.0

50 kA rms

710MVA

50 kA rms

130 kA p

5 cycle

36 kV/min

95 kV

Class 1E

Q

Type Name KVAH 7□50M KVAH 6□50M KVAH 1□40M

Max Rated Voltage 4.76kV 15kV

Rated Current 1200A / 2000A / 3000A 1200A / 2000A

Rated Frequency 60 Hz 60 Hz

Constant(K) 1.0 1.0

Rated Breaking Current 50 kA rms 40 kA rms

Rated Breaking Capacity 410MVA 1040MVA

Rated Short Time withstand Current (3S) 50 kA rms 40 kA rms

Rated Making Current 130 kA p 104 kA p

Rated Breaking Time 5 cycle 5 cycle

Power Frequency Withstand Voltage 19 kV/min 36 kV/min

Impulse Withstand Voltage(1.2×50㎲) 60 kV 95 kV

Nuclear Power Electrical Class Class 1E Non Class 1E

Nuclear Power Quality Class Q S

Rated Operating Seq.

Life (Rated Current Input)

Operation Mode

Rated Operating Voltage(For Motor)

Rated Operating Current(For Motor)

Rated Operating Voltage/Current(For Coil)

Rated Spring Reduction Time

Rated Making Time

Rated Opening Time

Auxiliary Contact

CB Weight (Body) 288kg / 318kg / 318kg 285kg / 318kg / 318kg

Certificate & Approval EED1100(2005) / IEEE Std C37.09(1999) / IEEE Std C37.09a(2005)

Permanent MagnetOperation

Reduction GearDrive Operation

Applied tandards

VVB IEC 62271-100

VVA IEEE C37.09

KVA

Things to Designate for Product Order

1. Quantity 2. Type Name

3. Applied Standards 4. Rated Voltage (kV)

5. Rated Current (A) 6. Rated Breaking Current (kA)

7. Standard Frequency (Hz) 8. Installation Method

9. Operation Method 10. Operating Voltage (AC/DC)

11. Control Voltage (AC/DC) 12. BCT used or not & specifications

13. Number of auxiliary contacts 14. Standard parts

15. Designated parts 16. Name plate (English, Korean)

17. Designate spare parts 18. Usage (Purpose)

19. Delivery Due

Ordering Information N 07 44 08 M

Motor Drive Operation

12.5kA(12)

IEC60056

IEEEC37.09

B1-09Vacuum Circuit Breaker

Ordering Information

Installing Method

N Fixed Type

E Draw-Out Type

FDraw-Out Type

(Shutter Type,F2)

G(H)Draw-Out Type

(Shutter, Bushing Type)

X For Outdoors

Rated Voltage

07 7.2kV

12 12kV

15 15kV

17 17.5kV

24 24kV

25 25.8kV

38 36/38kV

1 12/15kV

2 24/25.8kV

4 4.76kV

6 7.2kV

Rated Current

4 400A

6 600/630A

1 1200/1250A

2 2000A/2500A

3 3000/3150A

Rated Breaking Current

08 8kA

13

20 20kA

25 25kA

31 31.5kA

40 40kA

50 50kA

Operation Method

M

MA

S

CTD Schematic

Accessories / Dimension

The operating and control power of our VCB is DC power in standard but AC powercan also be used depending on the composition of load equipments and conditions.A Capacitor Trip Device can be installed in addition in order to control the VCB evenwhen there is a commercial power failure.

It is a switch to indicate whether a draw-out type VCB that uses a draw-out unit is inthe connecting position or test position in remote and this is installed in the draw-outunit of the VCB.

Type

Fixed Type (N) 1set 1

Draw-Out Type

(E, F, G(H))- 1

1

1

1

1

Connecting cable is 1.5m long, standard type

Condenser Trip Device(CTD)

External Dimensions

Connection Diagram

Position Display Switch

Standard Auxiliaries

90 110

80

60 71

74

B1-10B1-10

Type

Rated Input Voltage

Rated Output Voltage

Max. Discharge Holding Time

CTD-1

AC 100/120V

DC 130/150V

5min

CTD-2

AC 200/220V

DC 240/260V

5min

Fixing DeviceCharging

Handle

Draw-In/Out

Handle

Control Circuit

ConnectingCable

Remarks

B1-11Vacuum Circuit Breaker

B1-11Vacuum Circuit Breaker

Fixed Type (N)

Draw-Out Type (E/F)

External Dimension 7.2kV 8/12.5kA 7.2/12/15/17.5kV 20/25kV(VVB□-xxxx S)

100

116.

5

150

500530

150

4-M12 HoleMounting Hole

40 20 2-Ø13 Hole 6-Ø13 Hole(Mounting hole)

50 250 250

2-Ø30Hoist hole

160

670755

(760)

11 Earth cable hole

“B”

35

497

“A”

“A”

247

200

482

4020

80

30

40 20 2-Ø13 Hole

40

40 20 2-Ø13 Hole40 20 4-Ø13 Hole

60

28

“A”

“A”

568

200

250

400

150

150

“B”

504

Charge handle

Control plug

M10 TapEarth

93.5

530

(314.7)

321.5Earth tap

90

Discharge/Charge Indicator

Indicator

Close Button

ON/OFF Indicator

Open button

Counter

Charge handle

Control plug

Discharge/Charge Indicator

Close Button

ON/OFF Indicator

Open button

Counter

Interlock handle

Ø30 HoleEarth cable

93.5

504

440

40 20 4-Ø13 Hole

4020

80

40 20 2-Ø13 Hole

60

40 20 2-Ø13 Hole

40

40 20 2-Ø13 Hole

30

8kA 400A Terminal

12.5kA 630A Terminal

20/25kA 630A Terminal

20/25kA 1250 Terminal

8kA 400A Terminal 12.5kA 630A Terminal

20/25kA 630A Terminal 20/25kA 1250 Terminal

Type Dimension A B

VVB□-07408S 6 30VVB□-07612S 6 40VVB□-07620S 6 40

VVB□-07120S 8 80VVB□-07625S 20 80VVB□-07125S 8 80

Type Dimension A B

VVB□-07408S 6 30

VVB□-07612S 6 40

VVB□-07620S 6 40

TypeDimension A B

VVB□-07120S 8 80

VVB□-07625S 20 80

Type Dimension A B

VVB□-07125S 8 80

7.2kV 8/12.5kA (VVB□-xxxxM)

B1-12

Dimension

7.2kV 20/25kA (VVB□-xxxx M)

547.

5

545

16075 130 130

31472

745 (94.5)

40 2010

Mounting hole

314 30

RUN POSITION

244

65

4248

8

40 20

77

420

494

6- 10Ø

ØØ

Terminal Earth Terminal(t3)

2- 1310

Mounting hole

448 432.5A A

(40)

392 5050

522

460

80

480

635.

5

8- 12

Control plug

Charge hole

Open button

Close button

ON/OFF Indicator

Counter

Discharge/Charge Indicator

B19

539

0B

40 2040 20

60 804020

2- 13 4- 13

630A Terminal 1250/2000AEarth Terminal

Ø

Ø Ø

Bushing Type(G)

Fixed Type (N)

Control plugCharge hole

Open button

Close button

ON/OFF Indicator

Counter

Discharge/Charge Indicator

375.4TEST POSITION

500

VVBN-6620M

VVBN-6120M

VVBN-6625M

VVBN-6125M

VVBN-6225M

Type Dimension A B

145

160

145

160

160

6

10

6

10

20

B1-13Vacuum Circuit Breaker

7.2kV 20/25kA (VVB□-xxxxM)

RUN POSITION

Mounting hole

137

A A

823

300 320 300

586

17.8

98

85

921

6- 11

BB

195

(760

)

705

35.2

393.

2

40 20 40 20

10

60 804020

20

2- 13 4- 1313

630A Terminal 1250/2000ATerminal

Earth

Terminal(T3)

TEST POSITION RUN POSITION

Mounting hole

448 137

A A

823

300 320

300

29

596

17.8

61

85

884

635.

5

6- 11

Control plug

Charge hole

Open button

Close button

ON/OFF Indicator

Counter

Discharge/Charge Indicator

BB

195

(760

)

705

393.

235

.2

40 20 40 20

10

60 804020

20

2- 13 4- 1313

630A Terminal 1250/2000A Terminal

Earth

Terminal(T3)

Ø

Ø Ø

Ø

Ø

Ø

Ø

Draw-Out Type (E/F)

Bushing Type (G)

TEST POSITION448

635.

5

Control plug

Charge hole

Open button

Close button

ON/OFF Indicator

Counter

Discharge/Charge Indicator

VVB -6620M

VVB -6120M

VVB -6625M

VVB -6125M

VVB -6225M

Type Dimension A B

145

160

145

160

160

6

10

6

10

20

VVBG-6620M

VVBG-6120M

VVBG-6625M

VVBG-6125M

VVBG-6225M

Type Dimension A B

145

160

145

160

160

6

10

6

10

20

7.2kV 20/25kA (VVB□-xxxx M)

Note. When ordering, specify whether it is for the upper part or lower part

1,263

320(Mounting hle)

320(Mounting hle)

Mounting hle

1,100 163

40

80

80

40 20

40 20

80

40 20TOC

Stop

Floor Cut Size35

(For Upper Part For Earth Busbar)

720

780 60

100

808040

“D”Part 630A TERMINAL

Upper part earth busbar when loading 2 columns

Lower part earth busbar when loading 2 columns

Lower partearth busbar when loading2 columns

“D”Part 1250/2000A TERMINAL

Upper part earth busbar when loading 2 columns(Supplied during the delivery)

4- 13

2- 13

2- 13

2- 13

780

600 400

1,100 100

30

RUN

BCT

“D”

151 16050

DISCONNECTION

TEST

25

MOC AUTO JACK

(800)

772

790

150

8- 12.579

0

CB

A

230 230

9060

60

Ø

Ø

Ø

ØØ

B1-14

Dimension

Unit Type(G Class+MOC / TOC+CT mount in Front)

VVBN-6140M

VVBN-6240M

VVBN-6340M

Type Dimension A B

231

231

255

376

376

364

C

6

10

20

7.2kV 31.5/40kA(VVB□-xxxxM)

60。

818

8- 13(Mounting hole)

46

146 330 330

40

35

4-M12 Tap D.P20

23

1043.5

237.5

10 (1250A)

1250A 2000A/3150A

348

12

40

35

260

100 100

25

180 180253Shutter79

3

82.5

440

6808- 12(Mounting hole)

231

358

4- 14

55

Ø

Ø

Ø

Ø

Ø

556

180 180

600

650

40 25 50 50 30

A

Counter

Countrol plug

Charge/Discharge IndicatorCharge hole

Close button

ON/OFF Indicator

Trip button

Mounting hole4- 13

4- 13 6- 13

35

21351 Cooling plate

220

359

100

10040 50

BB

200100

490.6 C

1250 / 2000A Terminal 3150A Terminal

Ø

Ø Ø

B1-15Vacuum Circuit Breaker

Fixed Type (N)

Draw-Out Type (E/F)

VVBN-6140M

VVBN-6240M

VVBN-6340M

Type Dimension A B

670

670

760

12

12

32

C

97

25

167

7.2kV 31.5/40kA(VVB□-xxxx M)

Bushing Type (G)

160TEST POSITION RUN POSITION

60。

46

146 330 330

583 910

75

4-M12 Tap D.P20

23

1250A 2000A/3150A

3512

56

12

4020

(820

)

C

2000/3000ABUSHING

1200ABUSHING

180 180

724

8.3

440

6806- 13(Mounting hole)

55

8 - 13(Mounting hole)

4- 14 HOLE

8- 13 Earth Hole

Test Position

Ø Ø

Ø

Ø

Ø

4-M12 Tap D.P20P.C.D35

13

40 20 2-R10 200

325.5RUNTESTSISC TOC(5a5b)

1225

1001225750 350

7.5

82.5

40100

20

8040

163

A

MOC(10a10b) MOC(10a10b)

800

780

550340(Hole) 340(Hole)

Aulo jack(Number ofcontacts:16contacts)

Aulo jack(Number ofcontacts:16contacts)

Control Contact Cocling plate(In case of 300A)Moving shurterControl Contact

4- 14 HOLEEarthTerminal

Draw-Out

Line

Upper part earthbusbar when loading2 columns

Earth

Terminal

Lower part earth busbarwhen loading 2 columns)

(Upper part earth busbarwhen loading 2 columns

Supplied during the delivery

Lower part earth busbarwhen loading 2 columns)

4- 12.5 (mounting hole)

5- 15 HOLE

75

720

230

358

824

B10

C

231

1212

40

20

17240

230

82.5

680(Mounting Hole Position)

17.5

40

20

80

40

1250A

2000/3150A

4- 5 HOLE

Charge holeOpen button

Counter

Inierlockhandle

ON/OFF Indlcator

Close button

Discharge/Charge Indicator

Ø

Ø

Ø

Ø

Ø

Lower part earth busbarwhen loading 2 columns

B1-16

Dimension

Unit Type(G Class+MOC / TOC+CT mount in Front)

4- 5 HOLEØ

Type Dimension A B C

VVBG-6140N 358 231 164

VVBG-6240N348 260 99

VVBG-6340N

Type Dimension A B C

1250A 1388 358 231

2000A 1323 348 260

3150A 1323 348 260

12/15kV 25kA(KVA□-xxxxM)

Fixed Type (N)

630A Terminal 1250/2000ATerminal

Earthing terminal

30

50 70 203

BC

A

803.

5A

200

680(Mounting holes)

800

40

40 25

20 20

200

180

35

116 329 329

859

974

40

Test position

Run position

2- 13Ø 4- 13Ø13Ø

DE

AA

630A Terminal 1250/2000A Terminal

678

50 40 70

40 20 40 20

2- 13

570C

35 302 B

53418 18 93.5 50 119 50

200 200

Charge hole

Control plug

On/Off indicator

Mounting hole Mounting hole

Closing button

Trip button

Counter

Charge/DischargeIndicator

Ø

4- 13Ø

6 - 13Mounting holesØ

13 Earth terminalØ

B1-17Vacuum Circuit Breaker

Draw-Out Type (E/F)

Type Dimension A B C D E

KVAN-1625M12

170 472362 268

KVAN-1125M175 477

KVAN-1225M 25 381 249

Type Dimension A B C

KVA -1625M 12 365.2 268

KVA -1125M

KVA -1225M 25 384.2 249

12/15kV 25kA (KVA□-xxxx M)

250

120 350 350 38.8

75

Earth terminal

BCT(Option)Metal shutter

941.8

1180

254

Mounting hole

340

915

340

60

254

40

20

40 25202- 14

“B” Part

“A” Part

“A” Part detail

“B” Part detail

630A Terminal 1250/2000A Terminal

Ø

13Ø

4- 14Ø

Test position Run position

6- 13Ø

Mounting hole

67.2

B

830.

5

AA

C

4

50

40

40 70

B1-18

Dimension

Bushing Type (G)

Type Dimension A B C

630/1250A 12 365.2 268

2000A 25 384.2 249

Vacuum Circuit Breaker

24kV 12.5kA (VVB□-xxxxM)

664

628 112.75 160

Earth

617.580

40 20

407.5656.5

215

60 320 360880

40 15 13

1100

722(Mounting hole)806

70.3

19

Draw In/Out Handle

250 250

Control plug

Control plug

Charge hole

Charge hole

Open button

Open button

Close button

Close button

ON/OFF Indicator

ON/OFF Indicator

Counter

Counter

Draw outHandle position

Draw inHandle position

Discharge/charge Indicator

Discharge/charge Indicator

Mounting hole 4- 15

“A”

Earth Terminal“A” Part Terminal

Ø

2- 14Ø

6- 14Ø

2- 14Ø 8.5Ø

Test position

Mounting hole

Draw out

Draw in

Run position

Shutter※

(785

)

840

435

250

250

458

29.5

30 30

295

1060

66

294

568

(785

)

B1-19Vacuum Circuit Breaker

Fixed Type (N)

Draw-Out Type (E/FClass)

Note. When ordering, specify whether it is for the upper part or lower part

24kV 12.5/25kA(VVB□-xxxx M)

706

250

Charge hole

Closing button

Mountlng hole

Earth Terminal( 11)

Charge/Discharge lndicator

Trip Button

CounterCharge hole

Closing button

ON/OFF Indicator

Earth Terminal

TESTPosition

RUNPosition

212

350 3501050 90

250 77.5640900

4040 20

1020

15

140250 25080

727 92 50

50

50 244

635

526752

40 2040 20

Charge/Discharge lndicator

Earth Teminal(M10)

Trip Buton

Counter

ON/OFF lndicator

Mounting hale

250

630A TERMINAL 1250/2000A TERMINAL

630A Terminal Earth Terminal

(T3)1250/2000A

Terminal

60

A29

60 40 80

20

20

B

A

40 80

314

515

949

314

AA

118

8 - 13Ø

2- 13Ø

6- 13Ø

2- 13Ø 4- 13Ø 11Ø

Ø

4- 13Ø

B1-20

Dimension

Fixed Type (N)

Draw-Out Type (E/FClass)

Type Dimension A

VVBN-2625M 6

VVBN-2125M20

VVBN-2225M

Type Dimension A B

VVB -2625M 6 1100

VVB -2125M 20 1113

VVB -2225M

Vacuum Circuit Breaker

24kV 12.5/25kA(VVB□-xxxx M)

24kV 12.5/25kA(MCSG Type)

※ (250) is a reference size and it can be adjusted during the design by a istribution board company)

Dlsconnection ConnectionBCTMounting Position

2-M12

210

※ 250 ※ 250

250250 ±1

285 ±1

440 ±0.5 440 ±0.5

250 ±1250

60

197.5 430 430

4 2“A”

(Mountlng Hole) 1470

Earth Terminal

(Mountlng Hole) 1000

66112.5

Shutter

A Part Details

606 ±

1

1400

118

402

2

6

384 ±

135

9.5

35

384

2- 13Ø

2- 10Ø

9- 13HoleØ

2- 13HoteØ

1. ※Display Part: 1) Earthing Switch and BCT are optional.2) ( ) size of the lower bushing is the size

of Earthing Switch mounting-type.

212

300

BCT

300(312)

350

※ 250 ※ 250※ (250) is a reference size and it can be adjusted

during the design by a distribution board company)

250

10

250

2-M12TAP

950

35 60

350 150 77.5

250 250

“A”

640900

15

Earth Terminal(T3)

953

29

504

335

1100

9.5

35 335

20

6 - 13Ø

2- 13Ø

11Ø

Ø

TESTPosition

Mounting hole

6- 13Ø

Mounting holeEarth Terminal( 11)

EarthingSwitch

RUNPosition

B1-21Vacuum Circuit Breaker

G Class Skeleton

G Class Cradle

24kV 31.5/40kA, 1250/2000/3150A

Charge hole

ManualClosing Button

Charge/DischargeIndicator

Manual Trip Button

Mounting hole

4-M12 TAPD.P25

4-M12 TAPD.P25

Mounting hole

ON/OFF Indicator

Counter

4- 13Ø

732 762.5

677290

828

6868

20 20

210 280

689.5

290

5656

352

628

1148

56

56

Upper Remove A-A’ Lower Terminal B-B’

B.C.T(Option)

220

290 290110

1204

2-M12 TAP 4-M12 TAP 35

(1250A) (3150A)

100 500 500 45093

4501150

100

80

9

30

“A”

270

408

660

1240

29

3535

1350

11 Earthlng holeØ

9- 13 Mounting holeUse M12 BoltØ

Detail “A” Detail “A”

B1-22

Dimension

Fixed Type (N)

G Class Cradle

36/38kV 31.5/40kA

B1-23Vacuum Circuit Breaker

Fixed Type (N)

Draw-Out Type (E/F Class)

1,200A Terminal

[Detail “A”]

2,000A Terminal

[Detail “A”]

Upper Terminal A-A’

Lower Terminal B-B’

36/38kV 31.5/40kA

B1-24

Dimension

G Class Cradle

“B” Part detail

“A” Part detail

38kV 40kA(VVAH-xxxxM)

285 285

857.5

Spring Charge/Discharge

Manual Charge Hole

Manual Close Button

Name Plate

Earth Terminal

859 597

712 258.5

40

113

155

40

884

2-1/2”-13 Thread

4-1/2”-13 Thread

38

12.5 12.5

ON/OFF Indicator

Counter

Manual Open Button

VCB Mounting holes

Indicator

50Ø

79Ø

8- 11 holesØ

1267

.5

28.5 38

653.

537

0

140

Ref

er to

Ter

min

alD

etai

l

Terminal Detail 1200A

Terminal Detail 2000/3000A

B1-25Vacuum Circuit Breaker

Fixed Type (N)

38kV/40kA

2-1/2”-13 Thread

4-1/2”-13 Thread

370

40

658.5Term

inall Detail

4-M12 M

ounting holes

1369.5

Narne Plate

33

Spring Charge/Dlscharge Indlcator

Manual Cnarge Hole

Manual Cnarge ButtonON/OFF Indicator

Counter

Manual Open Button

38

Terminal Detail

1200A

Terminal Detail

2000/3000A

28.5

306.5

460460

1634

1940.5

460

19.5

110

965

285285

38

49

50Ø

79Ø

14Ø

B1-26

Dimension

G Class Cradle

Vacuum Circuit Breaker

For Outdoor use 25.8kV 25kA(KVAX Type)

Bushinghead

BreakingBoX

Hinge door

Hinge door

OperatingMechanism

box

Base

A 1362

50

75

1402

1292

374

40 17.5

75

1195A’

Front view

Upper terminal 600A Upper terminal 1200A

A-A’ Section view

Upper terminal 2000A

Side view

7。

230

2040 40 40

20

370

1125

1235

20

547

1304

2630

549

7。

217 500 500 217

420.7 500

1266.4

345.77。

110Ø

2- 12Ø

4- 18 Anchor BoltØ

110 Duct holeØ

2- 14Ø 2- 14Ø

B1-27Vacuum Circuit Breaker

* Dimension tolerance : ±5%

For Outdoor use 25.8kV 40kA (KVAX Type)

1435

217.5 217.5

1292 1125

1409

1479

1362

1402

140 140

1292

75

100

50

40

500 500

646.5 500 400.5

4- 14Ø 6- 18Ø

Bushinghead

Operatingmechanism box

breaking box

Base

A A’

7。 7。

1758

.7

B

A32

2.3

100

100

1125

1409

20

3050

50

40

Front view

Upper terminal

600/1200/2000A

Upper terminal

3000A

Side view

2- 110Duct holeØ

6- 24 Anchor bottØ

1519

A-A’ Section view

B1-28

Dimension

Type Dimension A B C

KVAX 2640M 558.5 2639.5 600A

KVAX 2140M 558.5 2639.5 1200A

KVAX 2240M 558.5 2639.5 2000A

KVAX 2340M 628.5 2709.5 3000A

For Outdoor use25.8kV 40kA (VVBX Type)

1435

217.5 217.5500

12921125

1409

17291362

1402

1292

140 140

70 70

500 (896.5) (400.5)500

1797

Bushinghead

Operatingmechanism box

breaking box

Base

A A’

1758

.732

2.3

1125

150

150

1409

1519

A

B

2- 110Duct hole

6- 24 ANCHOR BOLT

Ø

Ø

A-A’ Section view

Front view Side view

B1-29Vacuum Circuit Breaker

For Nuclear Power Plant4.76kV 50kA8.25kV 50kA 15kV 40kA

Test Position

Auto Jack(13PIN)

Run Position

Disconnection Position

MOC (5a5b) Non-Interchangeability Plate

TOC(3a3b)

Earth Terminal

Non-Interchangeability Plate

Class 1E Class NON-1E 4.76kV 50kA 1200A

50 235

120379.5

1120.5

430.5 310.5430 430 140.5

20

1616

3684

360±

248

5.5±

2

100

40

254±2

35 40 20

(820)

372

254±2

1114

491

4.5

225 164

A A

95

Bottom Mount9- 13Hole

Auto Jack(13PIN)

Ø

Bottom Mount9- 13HoleØ

4- 14HoleØ

Nuclear safety related

Main Circuit Terminal

View Section A-A Non-interchange

ability plate

B1-30

Dimension

1200A

Vacuum Circuit Breaker

For Nuclear Power Plant4.76kV 50kA 8.25kV 50kA 15kV 40kA

40

40

4-M12TAPD.P20

254±2

372

(820)

254±2

80Ø

Non-Interchangeability PlateAuto Jack

(13PIN)

Bottom Mount9- 13HoleØ

Test Position

Auto Jack(13PIN)

Run Position

Disconnection Position

MOC (5a5b) Non-Interchangeability Plate

TOC(3a3b)

Earth Terminal

360±

247

7±2

3684

1114

914.

54

245

50 235

315.5

201.5

120 430

379.5 430.51120.5

310.5

430 140.5

20

164

A

A’

30

Bottom Mount9- 13HoleØ

Nuclear safety related

View Section A-A’

Main Circuit Terminal

Class NON-1E Class NON-1E Class 1E Class 1E

4.76kV 50kA 3000A4.76kV 50kA 2000A

Non-interchangeability plate

B1-31Vacuum Circuit Breaker

2000 / 3000A

7.2kV 8kA~40kA, 24kV 12.5/25kA 38kV 40kA(VVA□-xxxxM)

24kV/38kV 31.5kA, 40kA

38kV / 40kV G Class

B1-32

Control Circuit Diagram

24kV N-type G Class

52M Motor

52C Closing coil

52T Opening coil

52Z Anti pump relay

LS1 Open when spring fully charged

LS2 Close shen spring fully charged

LS3 Close when circuit breaker in fullyconnected or in test position

52M Motor

52C Closing coil

52T Trip coil

52X Control relay

52Z Trip free relay

LS1 Open when spring fully charged

LS2 Close shen spring fully charged

LS3 Close when circuit breaker in fullyconnected or in test position

For Indoor 25.8kV 25kA

B1-33Vacuum Circuit Breaker

52M Spring charge motor 89XY Magnetic Contact for Draw Control LS4 OFF during Manual Operation

52C Closing coil 52X Magnetic Contact for Closing LS5 OFF at Run Position

52T Trip coil LS1 OFF when Spring Charge is completed LS6 OFF at Test Position

52Z Trip free relay LS2 ON when Spring Charge is completed LS8 OFF during Manual Draw-Out)

89M Draw out motor LS3 OFF during Draw-Out

For Outdoor25.8kV (25kA, 40kA)

Capacity Control S/W

Capacity Control switch(SL1)

Spare ContactSpare Contact

SpareContact Red lamp (on)

Anti pump Circuit

Closing Circuit Green lamp(off)

B1-34

Control Circuit Diagram

52M Spring charged motor LS Limit switch

52C Closing coil L Lamp

52T Trip coil 43R Local remote control switch

52Z Trip free relay MCCB Breaker

52X Control relay SL1 Heater selector switch

52a AUX S/W -a TH Thermostat switch

52b AUX S/W-b HU Humidity control switch

R Red lamp (VCB on) G Green lamp(VCB off)

52 Auxiliary switch

Vacuum Circuit Breaker

For Nuclear Power Plant

B1-35Vacuum Circuit Breaker