Single-phase meter shunting accurate judgment method for analyzing electricity stealing

Abstract

The invention discloses a single-phase meter shunt accurate judging method for analyzing electricity stealing, which relates to an electricity stealing analysis method. At present, the electricity theft analysis is not comprehensive, and there are misjudgments and misjudgments of sharing the neutral line. The present invention includes the following steps: 1) calling the A-phase current and zero line current of the low-voltage single-phase user smart meter once a month; 2) judging whether the single-phase meter is shunting; If it is suspected that there is a shared neutral line, it will not be generated as an exception; 4) For all users who suspect that there is a shared neutral line, call again on the next day. If there are changes compared with the previous day and still meet the diversion Judgment conditions, judge again whether there is a shared neutral line; 5) For electric energy meters that do not have a shared neutral line, call through again after a period of time. An exception is generated. The technical solution removes the situation of sharing the zero line, and prevents misjudgment and misjudgment.

Description

technical field [0001] The invention relates to an electricity stealing analysis method, in particular to a single-phase meter shunting accurate judgment method for analyzing electricity stealing. Background technique [0002] The construction of power user electricity information collection system is in line with the development direction of international power grid technology, and is also an important part of building a smart grid. It meets the requirements of economic and social development, and is an important measure to expand domestic demand and speed up the transformation of urban and rural power grids; it is an important measure for power grids. The important foundation of enterprise information system engineering construction and marketing measurement, meter reading, and charging standardization construction will strongly support power enterprises to make more timely and scientific decision-making, and promote the company's development to achieve a huge leap forward....

AI Technical Summary

Problems solved by technology

As we all know, during normal operation, the current of the phase line and the neutral line of the single-phase electric energy meter should be equal. If they are not equal, it is called the shunt abnormality of the single-phase electric energy meter. Since the single-phase electric energy meter measures electric energy based on the phase line current of the meter, if there is a phenomenon that the phase line current is less than the neutral line current, the meter will underestimate the electric energy, and there may be wiring errors or electricity theft

However, the current electricity theft analysis is not comprehensive, and there are situations such as misjudgment and misjudgment of the shared neutral line, which need to be improved in time to form a systematic judgment method to improve the accuracy of electricity theft analysis

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