Electricity larceny prevention device for electric energy meter measuring box

Abstract

The invention discloses an electricity larceny prevention device for an electric energy meter measuring box. The electricity larceny prevention device comprises a circuit breaker, an electric energy meter, a controller, and a first current transformer. The circuit breaker comprises a first circuit breaker, a second circuit breaker and a third circuit breaker. The electric energy meter is connected to the first circuit breaker and the second circuit breaker and the electric energy meter is connected with the controller through an RS485 bus. The first current transformer is installed on a live wire between the electric energy meter and the second circuit breaker. The output of the first current transformer is connected to the controller, and the controller is connected to a power source through the third circuit breaker. The electricity larceny prevention device is characterized in that the current transformer is installed on the live wire of the electric energy meter and the user's entry line, and the controller compares the current of the current transformer with the current of the electric energy meter to judge whether the user is stealing power so as to rapidly detect electricity larceny and erroneous line connection in line installation, o prevent theft fundamentally, and to ensure safe use of electricity.

Description

technical field [0001] The invention relates to the technical field of electric energy meter metering box detection, in particular to an anti-theft device for the electric energy meter metering box. Background technique [0002] The meter box is the protection device of the meter. It is necessary to install the meter in the public facilities such as municipal, community, telecommunications, electric power, rural power grid, factory, enterprise, office, heating, fire protection and so on. In recent years, the state has increased investment in power infrastructure and accelerated urbanization. The state has invested heavily in public facilities, such as rural power grid transformation, urban transformation, and transformation of new wires, cables, and metal meter boxes. But the shell of existing electric meter box is easy to cause damage, thereby causes the generation of a lot of electric stealing behaviors, causes bad social phenomenon. The existing electric energy meter mea...

AI Technical Summary

Problems solved by technology

However, the shell of the existing meter box is easy to cause damage, resulting in a lot of stealing behaviors and causing bad social phenomena

The existing electric energy meter metering box below 400V is only protected against electricity theft on the structure of the box body, and cannot perform real-time detection of electricity theft at all.

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