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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
Vacuum circuit-breaker type VD4
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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
-
900
1575
280
328
895
686
-
900
1575
Weight kg 94…180 147…260 260 260 260 94…180 260 290...350 290…350
Embedded pole • • • • • •
Assembled pole • • • • •
Vacuum circuit-breaker type VD4
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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
mm mm mm mm mm mm mm
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
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
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
Vacuum circuit-breaker type VD4
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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
Vacuum circuit-breaker type VD4
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016
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3-0
2-0
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2
3
4
5
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7
8
9
10
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
Vacuum circuit-breaker type VD4
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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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2
3
5
6
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4
8
910
Embedded pole (principle structure)
Vacuum circuit-breaker type VD4
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Operating mechanismof vacuum circuit-breaker VD4 - high duty
Shown: VD4 1220-50
Vacuum circuit-breaker type VD4
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Vacuum circuit-breaker onwithdrawable part intended for indoor installation in air-insulated switchgear systems (front view)
Shown: VD4 1231-50
Vacuum circuit-breaker type VD4
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Vacuum circuit-breaker onwithdrawable part intended
for indoor installation in air-insulated switchgear systems (pole view)
Shown: VD4 1220-50
Vacuum circuit-breaker type VD4
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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
Vacuum circuit-breaker type VD4
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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
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
1
2
3
4
7
8
9
65
Vacuum circuit-breaker type VD4
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Shown: Vacuum circuit-breaker, type VD4, in embedded technique12 kV, 2000 A, 50 kA
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
12 kV, 1250 A – 2500 A 50 kA12 kV, 3150 A / 40001) A …50 kA1) Breaker with fan-cooling
1
2
3
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Vacuum circuit-breaker type VD4
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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
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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Vacuum circuit-breaker type VD4
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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
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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2
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Vacuum circuit-breaker type VD4
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