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Device and method resisting strong magnetic interference of electric energy meter

A technology of interference device and electric energy meter, which is applied in the direction of measurement device, measurement of electrical variables, instruments, etc., can solve the problems that electricity management personnel are not easy to find, electric energy meter steals electricity, and power supply enterprise losses, etc., and achieves easy popularization and simple implementation method. , the effect of low cost of transformation

Inactive Publication Date: 2012-10-03
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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Problems solved by technology

[0003] Among the current users, there is a phenomenon of stealing electricity that interferes with the normal counting of the electric energy meter through a strong magnet, causing the electric energy meter to underestimate the amount of electricity, causing great losses to the power supply company.
For example: the user installs a strong magnet in a hidden position of the metering box or in the electric energy meter, so that the electricity management personnel are not easy to find

Method used

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  • Device and method resisting strong magnetic interference of electric energy meter
  • Device and method resisting strong magnetic interference of electric energy meter
  • Device and method resisting strong magnetic interference of electric energy meter

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Embodiment Construction

[0019] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0020] At present, power supply companies have installed user energy meters and electricity consumption information collection terminals for large users to measure and monitor the user's electricity consumption in real time.

[0021] figure 1 It is a schematic diagram of the wiring terminals of the existing power consumption information collection terminal, such as figure 1 As shown, the power supply enterprises usually clearly define the terminals of the power consumption information collection terminal, among which the switch input is used to monitor the external state quantity input and monitor the user's on-site power consumption status.

[0022] figure 2 A schematic diagram of the basic structure of a reed relay, such as figure 2 As shown, the dry reed relay includes a magnetic reed, a glass tub...

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Abstract

The invention discloses a device and a method for resisting strong magnetic interference of an electric energy meter. The device comprises an power utilization information collection terminal and a reed relay, wherein a normally-open type reed relay is connected at one switching amount input end or more switching amount input ends of the power utilization information collection terminal; when the reed relay has an external interference magnetic field, the relay is closed; and a closing signal of the relay is detected by the power utilization information collection terminal, an alarm is sent out. Therefore, the anti-electricity-stealing function of a power user is realized.

Description

technical field [0001] The invention relates to electric energy measurement technology, in particular to an electric energy meter anti-strong magnetic interference device and method. Background technique [0002] Among the current power users, for large users with large power consumption, power supply companies measure the real-time power consumption of users through three-phase electric energy meters. The power supply enterprise collects the real-time operation status of the electric energy meter and electric energy measurement information through the electricity consumption information collection terminal, and sends real-time information to the power consumption information collection system of the power supply enterprise through the wireless communication network, so as to realize real-time monitoring of the electricity consumption of large users manage. [0003] Among the current users, there is a phenomenon of stealing electricity that interferes with the normal counti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R11/02G01R11/24
CPCG01R11/24G01R22/066
Inventor 孙冲耿建坡
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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