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Accuracy evaluation system for digital electric energy meter

A technology for evaluating systems and electric energy meters, which is applied in the field of evaluation systems and can solve problems such as inability to test or accurately test the reliability of data received by digital electric energy meters and work stability.

Inactive Publication Date: 2014-12-10
STATE GRID CORP OF CHINA +3
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AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art above, the present invention provides a digital electric energy meter accuracy evaluation system, which solves the problem that the current electric energy meter testing equipment cannot test or accurately test the reliability of the received data and the working stability of the digital electric energy meter

Method used

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  • Accuracy evaluation system for digital electric energy meter

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 , the present invention provides a digital electric energy meter accuracy evaluation system, said system includes an analog standard source, an analog standard electric energy meter, a digital electric energy meter calibrator and a control computer; the control computer is connected to the analog standard source and the digital electric energy meter calibrator The analog standard source is connected to the digital electric energy meter through the digital electric energy meter calibrator, and is connected to the analog standard meter at the same time; the output voltage range of the analog standard source is 0-480V, and the current range is 0-100A.

[0022] The control computer is connected to the digital electric energy meter calibrator through Ethernet.

[0023] The control computer is connected to the analog standard source through...

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Abstract

The invention provides an accuracy evaluation system for a digital electric energy meter. The system comprises an analogue standard source, an analogue standard electric energy meter, a digital electric energy meter calibrator and a control computer, wherein the control computer is connected with the analogue standard source and the digital electric energy meter calibrator, the analogue standard source is connected with the digital electric energy meter through the digital electric energy meter calibrator, and connected with the analogue standard meter simultaneously; the voltage range output by the analogue standard source is 0-480V, and the current range is 0-100A. The invention provides an accuracy evaluation system for a digital electric energy meter, which solves the problem that the present electric energy meter test device is incapable of testing or accurately testing the reliability and working stability of data reception of the digital electric energy meter.

Description

technical field [0001] The invention relates to an evaluation system, in particular to a digital electric energy meter accuracy evaluation system. Background technique [0002] With the maturity of technologies such as electronic transformers, intelligent primary equipment and microelectronics technology, smart substations or digital substations have become a development trend. In digital substations, energy meters and transformers no longer constitute an electrical circuit, but optical cables connect electronic voltage and current transformers, intelligent primary equipment, etc. to transmit digital signals. Digital energy meters and merging units or electronic transformers have basically adopted high-reliability optical fiber communication methods. Digital energy meters will be important equipment for energy measurement in smart substations, so the demand for energy meters in digital substations will also increase. [0003] Compared with the traditional energy meter, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/04
Inventor 白静芬林繁涛王晔刘佳陈松方宋晓卉卢达赵莎章欣徐英辉杨湘江
Owner STATE GRID CORP OF CHINA
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