Method for checking electricity stealing based on remote calibration for grid line running error

Abstract

The invention relates to a method for checking electricity stealing based on remote calibration for a grid line running error. The method specifically comprises the steps of (1) dividing detection subareas, additionally arranging new electric energy measurement equipment in the subareas, and improving the digital resolution of all electric energy measurement data; (2) installing a detachable single-phase electric energy meter for each detection subarea to serve as an error standard for error detection; (3) acquiring all electric energy data of the detection subareas, and substituting the datainto an electric energy data error calculation model; (4) taking the 2-3 detachable single-phase electric energy meters installed in the detection subareas back to a laboratory, and checking the accuracy of the calculation result; and (5) calculating 10KV user electricity stealing conditions in a distribution network according to the calculation result. According to the method, the loss of a powersupply line can be accurately measured and monitored in real time, power interruption is not required, measurement for an error of all electric energy measurement devices within a 10kV distribution network is realized, loss detection and real-time monitoring for transmission lines of the distribution network can be achieved, and thus an electricity stealing line can be tracked and checked quicklyand accurately.

Description

technical field [0001] The invention belongs to the field of electric energy measurement, in particular to a power stealing investigation method based on remote calibration of grid line operation errors. Background technique [0002] The problem of stealing electricity is difficult to accurately locate the location of the stealing electricity line, and it cannot be detected in real time, which has always been a difficult problem for the power sector. Since the electric energy metering device is composed of current, voltage transformers and electric energy meters together, coupled with the influence of electromagnetic interference, there is no standard detection method and equipment for the real error of the existing electric energy metering device. So far, the global power industry has not found a practical theory and technology that can accurately measure and monitor electric energy measurement errors in real time. Because the existing distribution network electric energy ...

AI Technical Summary

Problems solved by technology

Because the existing power metering error of the distribution network is composed of current, voltage transformer error, electric energy meter error and electromagnetic interference, it

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