Data Analysis of Smart Electricity Meters under Unbalanced Current Conditions

During the operation of the electric energy metering device, in addition to the common faults such as the loss of voltage in the secondary circuit of the voltage transformer, there are also faults such as the disconnection of the secondary circuit of the current transformer, which will lead to inaccurate metering and affect the safety of personnel and equipment. In this paper, combined with the 10kV special transformer user, during the operation of the electric energy metering device, the current loop of the test junction box is poorly contacted, and according to the change law of the curve data of the acquisition system, the correction coefficient method is used to calculate the amount of rebate and compensation, and detailed measures are proposed to effectively prevent the fault of the secondary circuit of the current transformer.