vacuum circuit-breaker - high duty vd4

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Vacuum circuit-breaker -high dutyVD4

Vacuum circuit-breaker type VD4

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Vacuum circuit-breaker

high duty

12 kV, 1250 – 2500 A, 40 – 63 kA

12 kV, 3150/40001) A, …63 kA

17.5 kV, 1250 – 2500 A, 40 kA

17.5 kV, 3150/40001) A, …40 kA

36 kV, 1250 – 3150 A, …40 kA

40.5 kV, 1250 – 3150 A, …31.5 kA

1) Breaker with fan-cooling


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The switchgear complies with the followingspecifications in according with DIN VDE and relevant IEC publications:• VDE 0670, Teil 1000 and IEC 60694• DIN VDE 0670,Teil 1 and IEC 62271-100

1) Test voltage according to DIN VDE 0670,part 1000, list 2

2) When the operating voltage is lower thanthe rated voltage, the same values applyas for rated voltage

3) 4000 A breaker only with fan cooling

4) With rated current 2500 A only pole centres 275 mm5) Breaker with heat-sink 616 mm6) Breaker with heat sink7) Pole centres 360 mm fixed version

Pole centres 280 mm withdraw. version8) 1000 mm fixed version

Rated voltage1) kV 12 17.5 36 40.5

Rated current A 1250…2500 3150/40003) 1250…2500 3150/40003) 1250...3150 1250...3150

Rated short-circuitbreaking current symm.2) kA 40 50 63 20…50 63 40 20…40 25...40 25/31.5

Short-circuit breaking current asymm.2) kA 43.6 55.8 65.5 21.7...55,8 65.5 43.6 21.7...43.6 27.3...43.6 27.3/34.3

Rated short-circuit making current2) kA 100 125 158 30…125 158 100 50…100 63…100 63/80

Rated short circuit duration s 3 3 3 3 3 3 3 3 3

Dimensions p

H

a

b

c

d

e

210/2754)

310

570/700

424

433

237.5

5995)

210/2754)

310

600/750

459

433

237.5

608

275

310

750

459

433

237.5

677.56)

275

310

750

459

433

237.5

635.56)

275

310

750

459

433

237.5

677.56)

210/2754)

310

570/700

424

433

237.5

5995)

275

310

750

459

433

237.5

677.56)

280/3607)

328

895/10008)

555/686

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900

1575

280

328

895

686

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900

1575

Weight kg 94…180 147…260 260 260 260 94…180 260 290...350 290…350

Embedded pole • • • • • •

Assembled pole • • • • •


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12 kV, 1250-2500 A, 40 kA

17.5 kV, 1250-2500 A, 40 kA

p H a b c d e

mm mm mm mm mm mm mm

210 310 570 424 433 237.5 5991,)2)

275 310 700 424 433 237.5 5991),2)

12 kV, 1250-2500 A, 50 kA

p H a b c d e


210 310 6004) 4594) 433 237.5 608

275 310 7504) 4594) 433 237.5 608

12 kV, 3150 A / 4000 A, ...50 kA

12 kV, 1250-4000 A, 63 kA

17.5 kV, 3150 A / 4000 A1), ...40 kA

p H a b c d e


275 310 750 4594) 433 237.5 677.53)

36 kV, 1250-3150 A, 25-40 kA

40.5 kV, 1250-3150 A, 25/31.5 kA

p H a b d e

mm mm mm mm mm mm

2805) 328 8955) 6865) 900 1575

3606) 328 10006) 5556) 900 1575

Shown: 12 kV, 2500 A, 40 kA

2) Pole with heat-sink 616 mm 3) Pole with heat-sink

4) Max. width or depth 5) Version on withdrawable part 6) Fixed version

1) Measuring point pole part


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VD4 vacuum circuit-breakers are well suited for switching of:

short-circuit currents

overhead lines under load and no-load conditions

transformers under load and no-load conditions

ripple control systems

capacitors

motors


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Vacuum interrupter(principle structure )

1 Stem / Terminal

2 Twist protection

3 Metal bellow

4 Interrupter lid

5 Shield

6 Ceramic insulator

7 Shield

8 Contacts

9 Stem / Terminal

10 Interrupter lid


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1 Upper terminal

2 Vacuum interrupter

3 Epoxy resin

4 Stem

5 Lower terminal

6 Movable contact

7 Contact force spring

8 Push rod

9 Fixing point

10 Connection to operating mechanism

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Embedded pole (principle structure)


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Operating mechanismof vacuum circuit-breaker VD4 - high duty

Shown: VD4 1220-50


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Vacuum circuit-breaker onwithdrawable part intended for indoor installation in air-insulated switchgear systems (front view)

Shown: VD4 1231-50


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Vacuum circuit-breaker onwithdrawable part intended

for indoor installation in air-insulated switchgear systems (pole view)

Shown: VD4 1220-50


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Vacuum circuit-breaker on truck

36 kV, ... 31501) A, ... 402) kA

40.5 kV, ... 31501) A, ... 31.5 kA

Shown: VD4 3625-31

1) 3150 A in assembled pole 2) 40 kA in assembled pole


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1 Upper terminal


3 Epoxy resin

4 MC-contact

5 Lower terminal

6 Piston


8 Push rod

9 Mechanism enclosure with spring operating mechanism

12/17.5 kV, 1250 - 2500 A1), 40 kA

Shown: Vacuum circuit-breaker, type VD4, in embedded technique 12 kV, 2000 A, 40 kA

1) 2500 A with heat-sink

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Shown: Vacuum circuit-breaker, type VD4, in embedded technique12 kV, 2000 A, 50 kA

1 Upper terminal


3 Epoxy resin

4 Lower terminal

5 Flexible connection


7 Push rod

8 Mechanism enclosure with spring

operating mechanism

12 kV, 1250 A – 2500 A 50 kA12 kV, 3150 A / 40001) A …50 kA1) Breaker with fan-cooling

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1 Upper terminal


3 Epoxy resin

4 Lower terminal

5 Roller contact


7 Push rod

8 Mechanism enclosure with spring

operating mechanism

12 kV, 1250 – 3150 A / 40001) A, 63 kA

17.5 kV, 1250 – 3150 A / 40001) A, 40 kA

1) Breaker with fan-cooling

Shown: Vacuum circuit-breaker, type VD4,with assembled poles

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1 Upper terminal


3 Epoxy resin

4 Lower terminal

5 Flexible connection

6 Push rod

7 Mechanism enclosure with spring operating mechanism

36/40.5 kV, ...2500 A, ...31.5 kA

with embedded pole

Shown: Vacuum circuit-breaker, type VD4, in embedded technique 12 kV, 2000 A, 31.5 kA

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vacuum circuit-breaker - high duty vd4

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