LW46 SF6 HV Circuit Breaker 72.5kV/126kV For Fault Current

LW46-72.5/126 Series outdoor SF6 HV AC circuit breaker is high transmission and transformation electric equipment at rated voltage of 72.5/126kV, three-phase, AC 50Hz. It is applicable for opening and closing rated current, fault current and circuit conversion, so as to protect electric system. Moreover, three-phase quick automatic reclosing operation is available for equipment, and it also can be used as connecting circuit breaker.

The product adopts self-contained arc extinguish principle and be equipped with safe & reliable spring operation mechanism with excellent open & close capacity, reliable insulation, high current flow capacity and long mechanical endurance etc.

The circuit breaker is composed by three single poles and a spring operation mechanism installed on a same crossbeam. Therefore, it can be operated with three-phase together.

The circuit breaker has simple structure, easy for installation, low noise and high reliability..

The adaptation of self-contained arc extinguish has reduced operation power when breakng the short-circuit current, and matched with low operation power spring mechanism to increase operation reliability and mechanical life.

Meet requirement of high altitude (3000 and below) and extremely cold (-40℃)