GW23A double-post horizontal extend-retract outdoor three-phase high-voltage AC disconnector, rated frequency 50Hz, rated voltage 126kV, 252kV and 363kV, is for high-voltage line switching and isolate the high-voltage busbarcircuit breaker and other high-voltage electric equipments and live high-voltage line. Under the condition of non-breaking or non-making loading current, during the process of Transfer switching, open-close busbar transferring current and voltage

transformerlightning arrester and so on.