In modern indusiry, there are many equipment with fast and frequen!load changes, when the use of Ac contactor can not meet theimmediate needs of the system reactive power compensationswitching, can be used with the concept of "zero swilching" thyrisiorfast compensalion switching device, con achieve exlremely fast, noarc and surge curent switching operation.

WEST series capacitor ihyristor switch is designed for 0.4-0.69KV powercapacitor dynamic fast compensation switch, WEsT series capacitorthyristor switch is mainly suitable for impact load, need fast switchingcapacitor power load sile, such as: Welding machine, steel rolling.port crane, elevator, variable frequency furnace and other loadsquickly change the sile.