product use and characteristics

GW22Bseries high voltage AC isolation switch is a kind of outdoor high voltage power transmission and transformation equipment, three-phase AC frequency is 50hz/60hz. It is used to disconnect or connect the high-voltage line under no-load conditions, so as to convert the high-voltage line, change the operation mode, and realize the safe electrical isolation between the maintenance bus and the circuit breaker and other high-voltage electrical appliances. It can also split and close inductors, small capacitors and has the ability to switch currents.

This product is a single-column single-arm vertical telescopic structure, the contact is a clamp type, and a vertical insulation fracture is formed after opening. It is suitable for bus isolation switches. It is installed directly under the bus bar, which has the advantage of small footprint. The lower busbar can be equipped with JW10 grounding switch, and the upper busbar shall be equipped with independent grounding switch. 363 and 550kV disconnector and earthing switch adopt SRCJ8 type electrical mechanism, with single-pole operation, which can realize three-pole electrical linkage. The 126 kV and 252kV isolating switches are respectively equipped with SRCJ7 and SRCJ3 motor operating mechanisms for three-pole linkage, and the grounding switch is respectively equipped with CS11, SRCS manual operating mechanism or SRCJ motor operating mechanism for three-pole linkage.