Vacuum circuit-breaker - high duty VD4

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

Rated short-circuit breaking current symm.2) kA 40 50 63 20…50 20…40 Rated voltage1) kV 12 17.5 36 40.5 Rated current A 1250…2500 3150/40003) 1250...3150 Rated short-circuit breaking current symm.2) kA 40 50 63 20…50 20…40 25...40 25/31.5 Short-circuit breaking current asymm.2) 43.6 55.8 65.5 21.7...55,8 21.7...43.6 27.3...43.6 27.3/34.3 Rated short-circuit making current2) 100 125 158 30…125 50…100 63…100 63/80 Rated short circuit duration s 3 Dimensions p H a b c d e 210/2754) 310 570/700 424 433 237.5 5995) 600/750 459 608 275 750 677.56) 635.56) 280/3607) 328 895/10008) 555/686 - 900 1575 280 895 686 Weight kg 94…180 147…260 260 290...350 290…350 Embedded pole • Assembled pole 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 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 4) With rated current 2500 A only pole centres 275 mm 5) Breaker with heat-sink 616 mm 6) Breaker with heat sink 7) Pole centres 360 mm fixed version Pole centres 280 mm withdraw. version 8) 1000 mm fixed version

5) Version on withdrawable part 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 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 3) Pole with heat-sink 6) Fixed version

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 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 -

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

of vacuum circuit-breaker VD4 - high duty Operating mechanism of vacuum circuit-breaker VD4 - high duty Shown: VD4 1220-50

Vacuum circuit-breaker on withdrawable part intended for indoor installation in air-insulated switchgear systems (front view) Shown: VD4 1231-50

Vacuum circuit-breaker on withdrawable part intended for indoor installation in air-insulated switchgear systems (pole view) Shown: VD4 1220-50

Vacuum circuit-breaker on truck 36 kV, ... 31501) A, ... 402) kA 40.5 kV, ... 31501) A, ... 31.5 kA 1) 3150 A in assembled pole 2) 40 kA in assembled pole Shown: VD4 3625-31

with spring operating mechanism 12/17.5 kV, 1250 - 2500 A1), 40 kA 1 2 3 4 7 8 9 6 5 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

8 Mechanism enclosure with spring operating mechanism 1 2 3 4 5 6 7 8 12 kV, 1250 A – 2500 A 50 kA 12 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

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 1 8 2 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 3 4 5 6 7 Shown: Vacuum circuit-breaker, type VD4, with assembled poles

36/40.5 kV, ...2500 A, ...31.5 kA with embedded pole 1 Upper terminal 7 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