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Method and device for evaluating metering performance of low-voltage current transformer and electronic equipment

A technology of low-voltage current and metering performance, which is applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of low accuracy of evaluation methods, and achieve the effects of optimizing cost economy, satisfying reliable operation, and reasonable evaluation results

Pending Publication Date: 2021-12-14
国网河北省电力有限公司营销服务中心 +1
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Problems solved by technology

[0003] The embodiment of the present invention provides a low-voltage current transformer metering performance evaluation method, device and electronic equipment to solve the problem of low accuracy of the existing low-voltage current transformer metering performance evaluation method

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  • Method and device for evaluating metering performance of low-voltage current transformer and electronic equipment
  • Method and device for evaluating metering performance of low-voltage current transformer and electronic equipment
  • Method and device for evaluating metering performance of low-voltage current transformer and electronic equipment

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Embodiment Construction

[0062] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0063] In order to make the purpose, technical solution and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0064] As described in the background technology, the existing evaluation of the metrological performance of low-voltage current transformers usually adopts off-line detection methods such as "fixed pe...

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Abstract

The invention provides a method and device for evaluating the metering performance of a low-voltage current transformer and electronic equipment. The method comprises the following steps of: acquiring secondary loop parameter information of the low-voltage current transformer and initial verification data of the low-voltage current transformer; measuring and calculating the secondary loop parameter information by using a preset edge calculation algorithm to obtain metering error data of the low-voltage current transformer; fitting the initial verification data and the metering error data by using an interpolation method to obtain a metering error change curve of the low-voltage current transformer; and extracting metering error change data in the metering error change curve, and evaluating the metering error change data by using a preset performance evaluation algorithm to obtain an evaluation result of the metering performance of the low-voltage current transformer. With the method and device for evaluating the metering performance of the low-voltage current transformer and the electronic equipment adopted, the accuracy of the metering performance evaluation result of the low-voltage current transformer can be improved.

Description

technical field [0001] The invention relates to the technical field of metrology and detection, in particular to a method, device and electronic equipment for evaluating the metrology performance of a low-voltage current transformer. Background technique [0002] Low-voltage current transformer is a device that can convert high AC current into low current that is easy to control. It has the advantages of excellent performance and stable precision, so it has been widely used in the field of power supply. In order to ensure the normal operation of low-voltage current transformers, it is necessary to detect them. For a long time, the detection of low-voltage current transformers has been carried out in a fixed-period verification method, but this detection method requires shutdown detection, which will cause greater economic costs. loss, and the accuracy of the detection and evaluation results is low, so there is an urgent need for a low-voltage current transformer measurement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/11G06F17/16G06F17/18G01R35/02
CPCG06F17/11G06F17/16G06F17/18G01R35/02
Inventor 阎超王浩申洪涛徐建云李飞周忠良杨子夜谷魁宪
Owner 国网河北省电力有限公司营销服务中心
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