Electricity larceny prevention mutual inductor

Abstract

The invention discloses an electricity larceny prevention mutual inductor and relates to the technical field of mutual inductors. Comprising a bottom plate, a first pouring body which is arranged on the bottom plate and is poured by means of a mold, a primary winding which is fixedly sealed in the first pouring body, a secondary winding with a metering coil, a primary terminal which is arranged at the upper end of the first pouring body and is electrically connected with the primary winding, and a secondary terminal which is arranged on one side of the first pouring body and is electrically connected with the secondary winding, a second pouring body and a data circuit board fixedly sealed in the second pouring body are additionally arranged on one side of the first pouring body, a monitoring coil spaced from the metering coil is additionally arranged in the secondary winding, and the monitoring coil is electrically connected with the data circuit board. And electricity stealing is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to an anti-electricity stealing transformer. Background technique [0002] Current transformers use the principle of electromagnetic induction to convert different rated primary currents into standard rated secondary currents. They are mainly used for metering, measurement and electromechanical protection in power system distribution networks. Current transformers for metering need to be equipped with Anti-theft measures. [0003] At present, the mechanical lead-sealing structure of current transformers for metering is widely used to prevent users from stealing electricity. Although it can effectively prevent most users from stealing electricity to a certain extent, due to their own structural limitations, it is not excluded that individual users change the line without permission. It is possible to replace the lead-sealing device by itself. When the electricity theft is disco...

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Problems solved by technology

[0003] At present, current transformers for metering generally adopt a mechanical lead seal structure to prevent users from stealing electricity. Although it can effectively prevent most users from stealing electricity to a certain extent, due to their own structural limitations, it is not ruled out that individual users change the line without authorization. It is possible to replace the lead seal device by yourself. When electricity theft is discovered, the State Grid Corporation cannot provide strong evidence to prove the time and change of the line change. The potential hidden danger of user electricity theft needs to be remedied, and the level of anti-theft and monitoring technology needs to be improved.

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