Intelligent network method for detecting and recording electric energy metering failure

A technology of electric energy metering and fault detection, which is applied in the direction of measuring electric variables, electric power measurement through current/voltage, and measuring devices, etc., which can solve the problems of poor adaptability, low degree of network intelligence, and inability to accurately and completely detect and record abnormal operations Status and other issues, to achieve the effect of wide application, real-time rapid alarm

Inactive Publication Date: 2002-12-04
重庆龙源科技产业发展有限公司
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AI Technical Summary

Problems solved by technology

This method can effectively solve the key problems in the existing energy metering fault detection records, such as low network intelligence, poor adaptability, inability to accurately and completely detect and record abnormal operating states in electric energy metering, real-time faults, and rapid fault alarms.

Method used

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  • Intelligent network method for detecting and recording electric energy metering failure
  • Intelligent network method for detecting and recording electric energy metering failure
  • Intelligent network method for detecting and recording electric energy metering failure

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Embodiment Construction

[0015] The following is attached figure 1 , attached figure 2 Fault detection recording method and detection principle of the present invention are described as follows:

[0016] The amplitude detection module (1) is used to detect the amplitude of the grid phase voltage and the grid phase current. Its detection method can be:

[0017] Through the voltage transformer and current transformer, the strong current amplitude signal of the power grid is transformed into a weak current amplitude signal;

[0018] Transform the strong current amplitude signal of the power grid into a weak current amplitude signal through a voltage transmitter and a current transmitter;

[0019] Transform the strong current amplitude signal of the power grid into a weak current amplitude signal through a voltage sensor and a current sensor;

[0020] The strong current amplitude signal of the power grid is converted into a weak current amplitude signal through a voltage divider and a current shunt. ...

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Abstract

The invention relates to the intelligent networked method and device for testing and recording the malfunction of measuring electric energy. The invented device includes the the amplitude detecting module, the phase detecting module, the open circuit and short circuit detecting module, the intelligent signal processing module, the intelligent fault determination module, the time module, the measuring module, the data recording module, the state displaying module, the network communication module, the power source module, the power down protection module, the charging module etc. The invented method solves following drawback effectively, which exists in the prior art, such as low intelligent network degree, poor adaptability, unable to test and record each malfunction happened in the powermeasurement accurately and integrally and unable to alarm quickly.

Description

Technical field [0001] The invention belongs to electric energy metering fault detection in electric power systems, in particular to an intelligent networked electric energy metering fault detection and recording method. Background technique [0002] In the prior art, the fault detection and recording method of electric energy metering generally only detects voltage or current amplitude and phase. In terms of detection methods, it is usually judged whether the electric energy metering device loses voltage according to the magnitude of the grid voltage; or judges whether the electric energy metering device loses current according to the magnitude of the grid current amplitude; or judges the electric energy metering according to the phase relationship between voltage and current. Whether the device is connected incorrectly; according to the judgment result, record the failure time of the electric energy metering device. However, it is impossible to judge and record the faults...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/06G01R22/00
Inventor 刘晓勇张建立孙洪波王正坤刘勇发
Owner 重庆龙源科技产业发展有限公司
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