High Voltage Air Circuit Breaker

Timetric High Voltage Air Circuit Breaker  General description：

As the professional manufacture, we would like to provide you Timetric High Voltage Air Circuit Breaker. ZN63A(VS1)-12 is a High Voltage Air Circuit Breaker working as a protection and control unit of power grid equipment and industrial electric equipment in power system of rated voltage from 7.2KV to 12KV. It meets the requirements of GB/T1984-2014 (AC HV High Voltage Air Circuit Breaker) and JB355-1996 (3.6KV-40.5KV indoor AC HV vacuum circuit breaker). It can be used in switchgears of KYN28(GZS1), XGN and GG-1A.

Timetric High Voltage Air Circuit Breaker Parameter (Specification)

Timetric High Voltage Air Circuit Breaker Working principle:

The vacuum circuit breaker is equipped with a medium sealed longitudinal magnetic field vacuum arc extinguishing chamber. When the dynamic and static contacts are charged under the action of the operating mechanism, the gap between the contacts will burn the vacuum arc and extinguish the arc when the current is zero. Due to the special structure of the contacts, the gap between the contacts will generate the appropriate longitudinal magnetic field during the arc burning time, which can make the arc evenly distributed on the surface of the contacts and maintain the low arc voltage. The vacuum fire arc chamber has a higher strength recovery rate of backarc medium, a smaller arc energy and a smaller corrosion rate, so as to improve the ability of the circuit breaker to break short circuit current and electrical life.