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Direct-current watt-hour meter calibrating device

A technology of a DC electric energy meter and a verification device, which is applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of inability to realize the on-site verification of the inspected meter, and achieve the effect of improving efficiency and safety.

Inactive Publication Date: 2016-02-17
湖南省湘电试验研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the tested meter during work, it needs to be unloaded from the work site, and then placed on the verification table to complete the verification, and the on-site verification of the tested meter cannot be realized

Method used

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. In addition, those skilled in the art can make corresponding combinations of features in the embodiments in this document and in different embodiments according to the descriptions in this document.

[0026] The DC electric energy meter verification device described in the present invention is realized by the following technical scheme:

[0027] 1) The working principle of integrating DC power source and standard DC meter module

[0028] The DC power source is integrated with a standard DC meter module, wherein the DC power source is composed of a voltage source and a current source. Compared with the prior art, the DC watt-hour meter verification device is provided with a voltage output terminal measurement circuit ...

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Abstract

The invention proposes a direct-current watt-hour meter calibrating device which comprises a standard direct-current ammeter module, a direct-current programmable controlled voltage source module, a direct-current programmable controlled current source module and a system control module, wherein the system control module respectively inputs detected voltage and current signals into the direct-current programmable controlled voltage source module and the direct-current programmable controlled current source module, the direct-current programmable controlled voltage source module and the direct-current programmable controlled current source module carry out measuring and metering according to the input voltage and current signals, and output a direct-current standard voltage source and a direct-current standard current source, a voltage output end measuring circuit is arranged between the standard direct-current ammeter module and the output end of the direct-current standard voltage source, and a current output end measuring circuit is arranged between the standard direct-current ammeter module and the output end of the direct-current standard current source. The direct-current watt-hour meter calibrating device can carry out field detection on direct-current watt-hour meters, thereby improving the efficiency and safety of detection.

Description

technical field [0001] The invention relates to the field of electric energy meter detection, in particular to a DC electric energy meter verification device. Background technique [0002] The electric vehicle industry is currently the most popular development industry in the world. From Tesla in the United States to BYD's E-series and Qin-series models in China, they have all been launched into the market and have received good market response. According to the "Automobile and New Energy Vehicle Industry Development Plan" issued by the Ministry of Industry and Information Technology, by 2020, the number of new energy vehicles in my country will reach 5 million, and the number of energy-saving vehicles represented by hybrid vehicles will reach more than 15 million. [0003] For DC metering devices for electric vehicle charging, various manufacturers have developed related products one after another. For example, electric energy meter manufacturers represented by Wasion and K...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 李恺罗志坤欧朝龙陈浩杨茂涛陈福胜徐先勇万全银晖王智
Owner 湖南省湘电试验研究院有限公司
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