Line looped network power supply gateway metering switching device

The utility model provides a circuit looped network power supply gateway metering switching device which comprises a first wiring port, a second wiring port, a meter wiring port and a line loss metering wiring port. The first wiring port is connected with the meter wiring port; the meter wiring port is connected with the line loss metering wiring port; the first wiring port is connected with the line loss metering wiring port, and the line loss metering wiring port is connected with the second wiring port. According to the device, the A-phase and C-phase current of the line passes through the adapter, the meter and the power distribution terminal, so that the line protection function of the power distribution terminal is not changed, the gateway metering problem during looped network power supply can be realized, the power-off operation is not needed, and the problem that the traditional combined transformer cannot be accessed in an electrified manner is solved; and the power supply reliability and the synchr