1. General
HVD32 ZW32 This vacuum circuit breaker VCB is three-phase AC 50Hz, rated voltage 12 kV outdoor high voltage switch equipment. It is mainly used to opening(closing) load current, overload current and short-circuit current. It is suitable to protect or control the city or village electrical power distribution system.

2.Main technical parameter

Rated voltage: 12 kv

1 minute rated power frequency withstand voltage: Phase to Phase, to Ground 42 kv / Fracture 48 kv

Rated current: 630A / 1250A

Rated short circuit breaking current: 12.5KA, 16KA, 20KA / 25KA

Rated short-circuit current (peak): 31.5KA, 40KA, 50KA / 63KA

Rated peak withstand current: 31.5KA, 40KA, 50KA / 63KA

4s rated short time withstand current: 12.5KA, 16KA, 20KA / 25KA

Rated operating sequence: O-0.3s-CO-180s-CO(Electric operation)

Closing time: 30-60 ms

Opening time: 20-40 ms

Rated short circuit breaking current breaking times: 30 times

Mechanical life: 10,000 times

Secondary circuit 1 minute power frequency withstand voltage: 2000 v

Energy storage motor rated power: 40 w

Energy storage motor rated voltage V: DC220/110

Rated closing operation voltage v: DC220/110, AC220/110

Rated switching operation voltage v: DC220/110, AC220/110

Electric energy storage time: ≤8 s