The VCB is the new green generation.It adopts monopole vacuum interrupter,which has good quality of extinguishing vacuum arc and withstanding of extreme low temperature.The of high purity is filled as insulation gas between vacuum interrupter and ceramics.The spring-loaded cam linkage makes remote-control possible.The VCB has simple structure,high current breaking ability,safe operation and no risk of explosion.It is suitable in places of frequent operation for the loads close-opening and the opening of fault current .

Overall dimensions

Technical parameters

No Item unit Value
1 Rated voltage kV 72.5
2 Rated frequency Hz 50
3 Rated current A 1600/2500
4 1 min power frequency withstand voltage(wet)
(dry)phase to phase、phase to earth/fracture
kV 135/180
5 Lighting impulse withstand voltage(peak)phase to phase、phase to earth/fracture kV 380
6 Rated short circuit breaking current kA 31.5/40
7 rated short circuit breaking times times 20
8 Rated peak withstand current (peak) kA 80
9 Rated short-time withstand current/ duration kA/S 31.5/4
10 rated short circuit making current(peak) kA 80
11 Resistance of main circuit μΩ ≤100
12 Mechanical life  times 6000
13 Ambient temperature -45~+50

Related case

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