back-up circuit breaker 备用电路断路器
A set of digitized measuring system of arc voltage for high voltage circuit breaker has been set up successfully.
本文提出并建立了一套数字化的高压断路器电弧电压测试系统。
Reduction in parts Inventories and Costs: the simplified design of the vacuum circuit breaker or contactor has up to 50% less parts than the equivalent air magnetic equipment.
减少在零件存货和费用：真空开关或接触器的被简化的设计有50%较少部份比等效空气磁性设备。
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