Product description
This kind of vacuum circuit breaker combined with disconnector is outdoor distribution equipment of 12kV rated voltage and 50Hz three-phases
It is mainly used to break and close load-current, over-current, short-circuit current of power systems, providing protection and control in power distribution system of substation and industrial and mining enterprises
If the circuit breaker is in the closed position, the interlocking device of disconnecting switch and circuit breaker will lock the switch to its present position
In such cases they don’t operate violently so as not to damage the circuit breaker and isolating switch
Make sure that the circuit breaker is operated only when disconnecting switch is in open or closed position, or the interlocking device will be damaged
When operating in isolation switch on live parts, operator should use insulation rod and make sure of keeping certain safe distance, so as to ensure personal safety