An active anti-stealing device and a method for compensating and measuring strong magnetic electricity theft

Abstract

The invention discloses an active electricity larceny prevention device and a method aiming at magnetic electricity larceny compensation metering. The device comprises a front-end data collecting module, a signal processing circuit, an electricity larceny behavior judging and identifying module. If behaviors are judged to be electricity larceny behaviors, different treatment measures are adopted according to electricity larceny measures. Especially, when magnetic electricity larceny is performed, compensation metering needs to be performed on the magnetic electricity larceny due to the fact that the magnetic electricity larceny is high in imperceptibility and restores to the normal state when interference is removed so as to facilitate inspection. The steps of the method aiming at magnetic electricity larceny compensation metering is showed in the picture below. By the device and the method, the intelligence level and automation level of the active electricity larceny prevention device are increased greatly, key inspection and evidence obtaining by inspectors are facilitated, and corresponding treatment can be performed timely.

Description

Technical field [0001] The patent of the invention relates to the field of online monitoring and electric energy measurement, and relates to an active anti-theft device and a compensation measurement method for strong magnetic power theft. Background technique [0002] In recent years, the power grid has developed rapidly, and the power consumption of individuals and businesses has increased dramatically. Facing the ever-increasing demand for electricity, some illegal enterprises and individuals, in order to seek economic benefits, illegally connect and modify electric energy metering equipment to achieve the purpose of stealing electricity. According to a country’s conservative statistics, the amount of electricity stolen in a country is at least 2 billion kilowatt-hours per year. Based on the average electricity price of 0.4 yuan, the direct economic loss amounts to more than 800 million yuan. This does not include the repair of damaged meters, wiring and other equipment. cost...

AI Technical Summary

Problems solved by technology

[0005] (1) The power grid anti-stealing device is mainly for single protection of the 0.4KV user-side metering device, such as a special counter, load control device or remote meter reading system, and because there are many means of stealing electricity, any device for a single means of stealing electricity obviously cannot Meet the requirements, and the existing anti-stealing devices do not have the function of compensating for under-measured electricity, and manual calculation is required;

[0006] (2) The traditional inspection mainly relies on manual business census, which has poor timeliness and insufficient census. It is difficult to grasp the operation status of the distribution network in real time, and it is impossible to accurately provide the time, place and related data of the electricity theft, making it difficult to verify;

[0007] (3) The existing distribution network has a complex structure and many metering equipment, so real-time monitoring and recording cannot be achieved. When some high-tech methods are used to steal electricity, the existing equipment and measures are helpless

For example, a constant strong magnetic field close to the CT leads to electricity stealing means of energy measurement errors;

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