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Intelligent electric energy meter supporting electric leakage protection

A smart electric energy meter and leakage protection technology, applied in the field of electric energy meters, can solve the problems of difficulty in improving the safety of residual current circuit breakers, difficulty in cutting off the power supply by leakage protectors of power supply enterprises, and lack of supervision functions of power supply enterprises, so as to prevent theft of electricity. phenomenon, realize intelligent regulation, and protect the effect of electricity safety

Inactive Publication Date: 2016-08-31
NINGBO SANXING INTELLIGENT ELECTRIC
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AI Technical Summary

Problems solved by technology

[0003] Moreover, the traditional residual current circuit breaker does not have the supervision function of the power supply company, and it is difficult for the power supply company to manually control the leakage protector to cut off the power supply, and it is difficult to improve the safety of the residual current circuit breaker; only when there is a leakage current in the electrical circuit, the remaining The current circuit breaker can automatically disconnect the power supply to ensure the personal safety of electricity users; and today's residential users often need to install two smart energy meters and residual current circuit breakers in order to realize the measurement of electric energy, that is, the safety protection of electricity. equipment and instruments to realize the user's electricity protection; and although the original electric energy meter has the data collection of energy, voltage, current, etc., and also has a built-in or external switch, it can only passively accept the trip command issued by the system master station. action, and cannot carry out active power safety protection

Method used

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  • Intelligent electric energy meter supporting electric leakage protection

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Embodiment Construction

[0009] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0010] See figure 1 , a smart electric energy meter supporting leakage protection, including microcontroller, memory, LCD display module, metering chip, voltage sampling module, current sampling module, residual current sampling module, drive circuit, built-in relay, phase line port, neutral line Port, the microcontroller is respectively connected to the LCD display module for display and the memory for storing data, the microcontroller is also connected to a metering chip, and the metering chip is respectively connected to a voltage sampling module, a current sampling module and a residual current Sampling module; the microcontroller is also connected to the built-in relay through a drive circuit, and is used for the microcontroller to drive the built-in relay to cut off the power input when leakage occurs; it also includes an infrared interface...

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Abstract

The invention discloses an intelligent electric energy meter supporting electric leakage protection. Sampling of voltage and current is performed through a voltages sampling module, a current sampling module and a residual current sampling module and then metered by a metering chip and converted to a microcontroller to be analyzed and processed so that electric quantity can be acquired to realize acquisition of user electric quantity and residual current can also be acquired, and input of a power supply can be cut off through a built-in relay after electric leakage occurs.

Description

technical field [0001] The invention relates to the field of electric energy meters, in particular to a smart electric energy meter supporting leakage protection. Background technique [0002] With the further development of my country's economic construction, the rapid growth of electricity consumption in industry and agriculture, transportation, municipal public utilities and life, the personal injury and death caused by electric shock and the fire caused by electric leakage have also increased; in order to ensure the safety of electricity consumption, prevent electric shock casualties , to meet the needs of various sectors of the society for low-voltage electrical appliances, Guodian Power Grid requires users to install household leakage protectors, which are residual current circuit breakers, to achieve safety protection on the user side. [0003] Moreover, the traditional residual current circuit breaker does not have the supervision function of the power supply company,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R22/06H02H3/32
CPCG01R22/066G01R22/068H02H3/32
Inventor 郑坚江高松平邹连明谢虎王培慧
Owner NINGBO SANXING INTELLIGENT ELECTRIC
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