Provided is a complete set of switch equipment for pumped storage
power station units, which comprises three single-phase switch cabinet devices that are electrically connected to achieve three-phase mechanical linkage, the three-phase switch equipment is divided into three phases, the
circuit breaker controlled by the single-phase switch cabinet device is formed by two
vacuum arc chambers in parallel, the single-phase switch cabinet device comprises a transmission box and a mechanism box that are fixedly connected and distributed in front and back, a spring operating mechanism is installed in the mechanism box, the output
crank of the spring operating mechanism is connected with the input end of a four-bar linkage transmission mechanism arranged in the transmission box, and the two output ends of the four-bar linkage transmission mechanism are connected with the lower ends of the insulation pull rods of the two
vacuum arc chambers of the corresponding phase
circuit breaker. The utility model solves the problems of long procurement cycle, high procurement cost and untimely after-sales service caused by excessive dependence of pumped storage
power station unit switch equipment on imported equipment, improves the shunt capacity and
breaking capacity of the
circuit breaker, solves the problem of heating of the large-
current switch, and the opening and closing action is reliable, rapid and compact in structure.