High-power-supply low-control device applied to high-voltage cost control

The invention discloses a high-power-supply low-control device applied to high-voltage cost control. The high-power-supply low-control device comprises a base and a box body, a controller, an acquisition circuit, a processing circuit, a switch control circuit and a three-phase metering unit are arranged in the box body. The high-voltage power input end is connected with the input end of the switch control circuit; the output end of the switch control circuit is connected with a common voltage terminal of the three-phase metering unit; the three-phase input end of the acquisition circuit is connected with the three-phase output end of the switch control circuit; the acquisition circuit is connected with the processing circuit; the three-phase output end of the acquisition circuit is respectively connected with the three-phase metering unit and the controller; the controller is in communication connection with the three-phase metering unit and is in control connection with the switch control circuit; and the co