ZW32-12FG type power load control metering box (hereinafter referred to as metering box) is mainly used for power users and substations with rated voltage of 10kV, rated frequency of 50Hz, capacity of 5000kVA and below, and plays the role of load control and high-voltage electric energy metering. In conjunction with load control terminals or other controllers, it can realize load control, high-voltage metering, high-voltage prepayment, overload current protection, anti-theft and other functions.