Metering electric meter box with automatic commutation function

The utility model discloses a metering electric meter box with an automatic commutation function. The metering electric meter box comprises a detection module, a control output module, a current transformer, a circuit breaker QF and a phase converter. The detection module comprises a voltage collector, a current collector, a CPU processor and a GPRS module 1. The current transformers are located on the three-phase power supply L1, the three-phase power supply L2 and the three-phase power supply L3 and are connected with the current collector; the phase converter comprises control power lines L11, L22 and L33; the three-phase power supply L1, the three-phase power supply L2 and the three-phase power supply L3 are respectively connected with the control power lines L11, L22 and L33 through a main open circuit. The device has an automatic commutation function, saves labor cost, and protects equipment. 本实用新型公开了一种带自动换相功能的计量电表箱,包括：检测模块、控制输出模块、电流互感器、断路器QF、换相器；所述检测模块包括电压采集器，电流采集器，CPU处理器，GPRS模块1；所述电流互感器位于三相电源L1、L2、L3上