Abstract:In view of the fact that some low-voltage power users have reverse active power, which affects the calculation of power, causes the abnormal line loss index in the substation area, and causes the economic loss of power supply enterprises.Based on the data of power consumption in the power consumption information acquisition system, this paper proposes a discrimination method for low-voltage power users with reverse active power.This method analyzes the power consumption characteristics of distributed photovoltaic users, low-voltage power users with wrong wiring of electric energy meter, low-voltage power users with electromagnetic braking equipment and low-voltage power users with metering device fault when there is reverse active power, and establishes corresponding identification rules respectively.This method realizes the fast identification of the low-voltage users with reverse electric quantity, and then focuses on the tracking and monitoring of the low-voltage users with the wrong wiring of the electric energy meter or the low-voltage users with the failure of the metering device, so as to deal with it in time and reduce the loss of the power supply enterprise.Finally, the example shows that the method is practical and effective, which can improve the work efficiency and save human and material resources for State Grid.