Anti-electricity-larceny transformer and anti-electricity-larceny method

Abstract

The invention provides an anti-electricity-larceny transformer and an anti-electricity-larceny method. The anti-electricity-larceny transformer comprises a transformer body, and is characterized by further comprising an electric parameter sensor fixed to the secondary-side low-voltage lead of the transformer body and configured to acquire the secondary-side current data, and transmit the data to adistribution transformer monitoring terminal. The anti-electricity-larceny transformer embeds the electric parameter sensor in the secondary side of the transformer, has no shortcoming of secondary installation and maintenance, thereby fundamentally eliminating the possibility of cross-meter electricity larceny. By comparing the historical accumulated value of actually measured secondary-side power with the historical accumulated value of the meter power, the anti-electricity-larceny transformer can determine whether a user steals electricity, helps to find the electricity larceny behaviors in time, and causes low loss to the transformer. The secondary-side electric parameter sensor is small in size and easy to install, and has measurement accuracy which can reach 0.2.

Description

technical field [0001] The invention relates to the field of electric power, in particular to an anti-theft transformer and an anti-theft method. Background technique [0002] Driven by interests, electricity theft, especially by large users, is very common, endangering the security of the power grid and bringing huge economic losses to the country. There are various means of stealing electricity, and there are also various anti-stealing technologies, but most of them are solutions for one or more methods of stealing electricity, and there are anti-theft dead zones or cannot adapt to new electricity stealing technologies. [0003] At present, the current better anti-stealing scheme is to install a wireless current transformer on the primary side of the power transformer, combined with the power service terminal, and compare the current of the primary and secondary sides to effectively supervise the behavior of stealing electricity. It has achieved considerable economic and ...

AI Technical Summary

Problems solved by technology

The key technology of this scheme is to install a radio parameter collector on the high-voltage side. The main disadvantages are: (1) secondary construction is required, and installation and maintenance are difficult due to the operation on the high-voltage side; (2) the primary and secondary current of the transformer The comparison of the transformer is superimposed on the loss of the transformer, and the parameters need to be adjusted; (3) the wireless module uses induction to take power, and the low current cannot work, and the error is large, and the accuracy of the result needs to be improved

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