How the circuit breaker controls the circuit

1、It should be able to monitor the integrity of the control circuit protection device and its tripping and closing circuit to ensure the normal operation of the circuit breaker.

2, should be able to indicate the normal closing and breaking position of the circuit breaker state, and in the automatic closing and automatic tripping with a clear indication signal.

3、After closing and tripping is completed, it should be able to make the command pulse lifted, that is, to cut off the power to close or trip.

4, in the absence of mechanical anti-trip device, should be retrofitted with electrical anti-trip device.

5, the circuit breaker accident tripping signal circuit, should be wired according to the principle of non-correspondence.

6, the possibility of abnormal working condition or failure of the equipment, should be equipped with advance signals.

7, spring-operated mechanism, manual operating mechanism power supply can be DC or AC, electromagnetic operating mechanism power requirements with DC.