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Interlocking device for metering system, meter box and electricity larceny prevention method

A technology of a metering system and an interlocking device is applied in the fields of electricity theft prevention and electric energy measurement, which can solve the problems of inability to respond in time, poor remote control effect, and inability of electric energy metering equipment to respond to electricity theft in a timely manner, so as to avoid the consequences of electricity theft, The effect of reducing the difficulty of destruction

Pending Publication Date: 2020-08-25
LUOHE POWER SUPPLY OF HENAN ELECTRIC POWER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first object of the present invention is to provide an interlocking device for a metering system to solve the technical problem of not being able to respond in time and discover the electricity stealing behavior caused by the tampering event of the in-service electric energy meter
[0006] The second object of the present invention is to provide a meter box to solve the technical problem that the existing metering equipment has poor remote control effect on refitting the wiring method of the in-service electric energy meter to steal electricity
[0007] The third object of the present invention is to provide an anti-stealing method to solve the technical problem that the existing electric energy metering equipment cannot respond to the stealing behavior in time

Method used

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  • Interlocking device for metering system, meter box and electricity larceny prevention method
  • Interlocking device for metering system, meter box and electricity larceny prevention method
  • Interlocking device for metering system, meter box and electricity larceny prevention method

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Effect test

Embodiment 1

[0041] Embodiment 1: An interlocking device for a metering system, including an event trigger module, a control module, a power supply circuit control switch KM and an unlocking module. The input terminal of the control module is electrically connected to the signal output terminal of the event trigger module and the signal output terminal of the unlocking module respectively, and the output terminal of the control module is electrically connected to the control terminal of the control switch of the power supply circuit.

[0042]Preferably, the signal output terminal of the event trigger module is electrically connected to the interrupt pin of the control module. In this way, when the signal output by the signal output end of the micro switch switches from the first level signal to the second level signal, the control module generates an interruption. During the period when the signal output terminal of the micro switch keeps outputting the second level signal, the control mod...

Embodiment 2

[0056] Embodiment 2: a kind of anti-stealing method, uses the metering system interlocking device of the first part of the present invention, comprises the following steps:

[0057] After detecting that the tail cover of the electric energy meter is opened, disconnect the power supply circuit and lock the power supply circuit in the open circuit state;

[0058] After receiving the unlocking instruction, the power supply circuit is unlocked, so that the power supply circuit is in a switchable state.

Embodiment 3

[0059] Embodiment 3: a method for preventing electricity theft, using the interlocking device for the metering system of the first part of the present invention, comprising the following steps:

[0060] After detecting that the tail cover of the electric energy meter is opened, disconnect the power supply circuit and lock the power supply circuit in the open circuit state;

[0061] After receiving the unlock command, unlock the power supply circuit so that the power supply circuit can be opened and closed;

[0062] During the period of time t after receiving the unlock command, calculate the ratio a of the total energy metering amount of the total electric energy meter and the sum of the electric energy measurement components of all branch electric energy meters corresponding to the total electric energy meter, if the ratio a ≥ the set warning value, then send Alarm signal, the energy meter belongs to the branch energy meter. Setting the warning value needs to exclude common ...

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Abstract

An interlocking device for a metering system comprises an event triggering module, a power supply circuit control switch and an unlocking module. When the event trigger module detects an abnormal event, the power supply circuit control switch disconnects the power supply circuit and is switched from the controllable mode to the abnormal mode; the unlocking module is used for enabling the power supply circuit control switch to be switched into the controllable mode from the abnormal mode, and when the power supply circuit control switch is in the abnormal mode, the load end of the power supplycircuit control switch is locked in the open circuit state. A meter box comprises a box body, a box cover, an electric energy meter and an interlocking device for a metering system, and a buried signal line used for coupling the interlocking device for the metering system is arranged in the box body. An electricity larceny prevention method comprises the steps that after it is detected that a tailcover of an electric energy meter is opened, a power supply circuit is disconnected, and the power supply circuit is locked in an open circuit state; and after receiving the unlocking instruction, the power supply circuit is unlocked to enable the power supply circuit to be in an openable and closable state. And an electricity stealing behavior caused by a forcible entry event of the in-service electric energy meter can be discovered timely.

Description

technical field [0001] The invention relates to the technical field of electric energy metering, in particular to an interlocking device for a metering system and a meter box. [0002] The invention also relates to the field of electricity theft prevention, in particular to an electricity theft prevention method. Background technique [0003] After the popularization of smart fee-controlled electric energy meters, there are generally two ways to steal electricity. One is to use harmonic currents or electromagnetic effects to cause the energy meter to fail, or to cause the controller of the metering module to crash. This method of stealing electricity requires high professional skills and has a high risk of electric shock. The other is to adjust the lead-in and lead-out wires of the electric energy meter so that the smart charge-controlled electric energy meter cannot collect voltage data or current data at the load end, but the metering rules of the electric charge-controll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R11/04G01R11/24
CPCG01R11/04G01R11/24
Inventor 王建军李亮王永翔赵永浩胡兆宏刘海燕张瑞李新杰
Owner LUOHE POWER SUPPLY OF HENAN ELECTRIC POWER CORP
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