Precautions When The High-voltage Disconnector Is Far Away From The Circuit Breaker

When hv isolator switch is far from the circuit breaker and it is difficult to use mechanical interlocking, the lock key of high voltage electrical isolator can be stored at the circuit breaker or on the operating handle of the control switch of the circuit breaker. The key can only be taken out to open the corresponding isolator high voltage after the circuit breaker is opened to avoid switching off the circuit breaker under load.