This series include two types: LW42-40.5 Sf6 circuit breaker and ZW30-40.5(G) vacuumcircuit breaker that with same installation dimension and appearance.
This series HV AC circuit breaker is 40.5kV of reated voltage, three-phase, 50Hz. It is used 40.5kV as high voltage transmission and transformation equipment to open and close rated current, fault current and circuit conversion, so that it can protect electric system. Moreover, three-phase quick automatic reclosing operation is available. It also can be used as connecting circuit breaker with excellent open & close capacity, reliable insulation, high current flow capacity and long mechanical life etc.
The circuit breaker is composed by three single phases installed on a same crossbeam and a spring
operation mechanism. Therefore, it can be operated with three-phase together..
The circuit breaker has simple structure, easy for installation, low noise and high reliability.
The circuit breaker adopts miniaturization spring operation mechanism with low operation power and
long mechanical life.
Meet requirement of high altitude (3000 and below) and extremely cold (-40℃).
The circuit breaker can be matched with outdoor current transformer in order to meet requirement of
different ratio and accuracy. Current transformer will be installed on side of crossbeam.
The circuit breaker can be matched with outdoor current transformer in order to meet requirement of
different ratio and accuracy. Current transformer will be installed on side of crossbeam.
This series circuit breaker has the same dimension and appearance so it can be exchanged easily.
This series circuit breaker will be debugged in workshop and packed as a whole. It is convenient for
installation.
