vacuum circuit breaker high duty vd4
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Vacuum circuit-breaker - high duty VD4. Vacuum circuit-breaker high duty 12 kV , 1250 – 2500 A, 4 0 – 63 kA 12 kV, 3150/ 4000 1) A , …63 kA 17.5 kV, 1250 – 2500 A, 40 kA 17.5 kV, 3150/ 4000 1) A, …4 0 kA 36 kV, 1250 – 3150 A, …40 kA 40.5 kV, 1250 – 3150 A, …31. 5 kA.

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slide2
Vacuum circuit-breaker

high duty

  • 12kV, 1250 – 2500A,40 – 63 kA
  • 12kV, 3150/40001)A, …63kA
  • 17.5kV, 1250 – 2500A,40kA
  • 17.5 kV, 3150/40001) A,…40 kA
  • 36kV,1250 – 3150A,…40 kA
  • 40.5kV, 1250 – 3150 A,…31.5 kA

1) Breaker with fan-cooling

slide3
The switchgear complies with the following

specifications 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

4) With rated current 2500 A only pole centres 275 mm

5) Breaker with heat-sink 616 mm6) Breaker with heat sink

7) Pole centres 360 mm fixed version

Pole centres 280 mm withdraw. version

8) 1000 mm fixed version

1) Test voltage according to DIN VDE 0670,

part 1000, list 2

2) When the operating voltage is lower than the rated voltage, the same values apply as for rated voltage

3) 4000 A breaker only with fan cooling

slide4
12 kV, 1250-2500 A, 40 kA17.5 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 mm mm mm mm mm mm mm
  • 210 310 6004) 4594) 433 237.5 608
  • 275 310 7504) 4594) 433 237.5 608
  • 12kV, 3150 A / 4000 A, ...50kA12kV, 1250-4000 A, 63kA17.5 kV, 3150 A / 4000 A1), ...40kA
  • p H a b c d e mm mm mm mm mm mm mm
  • 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

1) Measuring point pole part

4) Max. width or depth

2) Pole with heat-sink 616 mm

5) Version on withdrawable part

6) Fixed version

3) Pole with heat-sink

slide5
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
slide6
Vacuum interrupter(principle structure )

1

2

3

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

4

5

6

7

8

9

10

- 6016 E 23-02-06 -

slide7
Embedded pole (principle structure)

1

  • 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
  • Connection to operating mechanism

2

3

4

5

6

7

8

9

10

slide8
Operating mechanism

of vacuum circuit-breaker VD4 - high duty

Shown: VD4 1220-50

slide9
Vacuum circuit-breaker on

withdrawable part intended for indoor installation in air-insulated switchgear systems (front view)

Shown: VD4 1231-50

slide10
Vacuum circuit-breaker on

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

Shown: VD4 1220-50

slide11
Vacuum circuit-breaker on truck

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

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

1) 3150 A in assembled pole2) 40 kA in assembled pole

Shown: VD4 3625-31

slide12
1

9

2

3

4

5

6

7

8

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

1) 2500 A with heat-sink

1 Upper terminal

2 Vacuum interrupter

3 Epoxy resin

4 MC-contact

5 Lower terminal

6 Piston

7 Contact force spring

8 Push rod

9 Mechanism enclosure

with spring operating mechanism

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

slide13
1

8

2

3

4

5

6

7

12 kV, 1250 A – 2500 A 50 kA12 kV, 3150 A / 40001) A…50 kA

1) Breaker with fan-cooling

1 Upper terminal

2 Vacuum interrupter

3 Epoxy resin

4 Lower terminal

5 Flexible connection

6 Contact force spring

7 Push rod

8 Mechanism enclosure with spring operating mechanism

Shown: Vacuum circuit-breaker, type VD4, in embedded technique 12 kV, 2000 A, 50 kA

slide14
12 kV, 1250 – 3150 A / 40001) A, 63 kA

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

1) Breaker with fan-cooling

1

8

1 Upper terminal

2 Vacuum interrupter

3 Epoxy resin

4 Lower terminal

5 Roller contact

6 Contact force spring

7 Push rod

8 Mechanism enclosure with spring operating mechanism

2

3

4

5

6

7

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

slide15
1

2

3

4

5

6

7

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

with embedded pole

1 Upper terminal

2 Vacuum interrupter

3 Epoxy resin

4 Lower terminal

5 Flexible connection

6 Push rod

7 Mechanism enclosure

with spring operating mechanism

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

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