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Judge the reasons for circuit breaker rejection and treatment methods
- Jan 25, 2018 -

1) Check whether the previous closing of the switch is caused by improper operation (for example, if the control switch is too fast, etc.), use the control switch to restart.

2) If the closing is still unsuccessful, check the various parts of the electrical circuit to determine whether the electrical circuit is faulty. Check items are: closing control power is normal. Closing control circuit fuses and closing circuit fuses are good. Contact closing contactor is normal. Turn the control switch to the closing position to see if the closing core action is normal.

3) If the electrical circuit is normal, the circuit breaker still can not be closed, then the description is mechanical failure, the circuit breaker should be deactivated, the report dispatching arrangements for maintenance.