Huayi Electric Apparatus Group Co., Ltd.

Circuit Breaker

	Outdoor High Voltag Circuit Breaker

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Model Number

ZW27-12

ZW27-12 model Outdoor High Voltage Vacuum Circuit Breaker is a kind of no oil, air insulation and vacuum extinguishing arc distribution equipment, which takes advantage of the mature experience of Toshiba VSP5 automatic sectionalizer, so owning more favourable performance than any other similar products in domestic. The product is mainly used to break and close load current, over-load current and break short-circuit current in 50Hz,12kV and below power system.

Technical Specification/Parameter

Rated voltage: 12 KV

Rated frequency: 50 Hz

1min P.F. withstand voltage,dry test/wet test: 42/30 KV

Lightning impulse withstand voltage peak: 75 KV

Rated current: 630 A

Rated short-circuit breaking current: 12.5/16/20 KA

Rated short-circuit closing current peak: 31.5/40/50 KA

Rated short-time withstand current: 12.5/16/20 KA

Rated withstand current peak: 31.5/40/50 KA

Rated short-circuit breaking current breaking times: 50 Times

Mechanical lifetime: 10000 Times