The utility model relates to an energy storage equipment especially relates to an area turns to pumped storage unit who judges device. This area turns to pumped storage unit who judges device, including frame, the hydraulic turbine, spiral case and connecting axle, inside stator and the rotor of being provided with of frame, the spiral case is close to to be connected the shaft position and is provided with the stator, still include speed regulator, circuit breaker and unit switching -over plug -in strip, speed regulator, circuit breaker and unit switching -over plug -in strip circuit connection, the speed regulator links to each other with the stator. The utility model discloses having and will playing the work load that reduces the high risk operation not influencing under the prerequisite that the unit flow carried out, improve maintenance efficiency, it beneficial effect such as influences to prison dish personnel to reduce the signal jitter.