Why is the low-voltage power cut off?

1, the opening and closing of high voltage vacuum circuit breaker is realized through the opening and closing coil. There will be a small cylinder on the opening and closing coil, which will open the mechanical part of the circuit breaker when charged, so that the circuit breaker is on and off. The opening and closing coil can not be charged for a long time.

2, when the circuit breaker closes, the operating mechanism of the circuit breaker will close the moving contact, which is the mechanical part closed, the circuit breaker closing auxiliary contact is disconnected, the closing coil is disconnected. When opening brake, it must be controlled by protection or button, and the opening coil must be charged to separate. 3. The vacuum circuit breaker is not a vacuum contactor, and the on-off coil of the circuit breaker shall not be charged for more than 200ms.

4, regulations, when the control power disconnect or integrated protection damage, the circuit breaker to keep refusing.