A New 10 kV Low Power Electronic Current Transformer

FANG Chun-en1; LI Wei1; WANG Jun1; ZHANG Bi-de1; HOU Xiang-yu2

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A New 10 kV Low Power Electronic Current Transformer

更新时间：2025-04-26

- A New 10 kV Low Power Electronic Current Transformer
- High VoltageApparatus Issue 4, Pages: 312-314+318(2008)
- 作者机构：
  
  1. 西华大学电气信息学院
  2. 四川电器有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM452
- Published：2008
- 稿件说明：
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[1]方春恩,李伟,王军,张彼德,侯祥玉.10kV低功率电子式电流互感器LPCT的研究[J].高压电器,2008(04):312-314+318.

FANG Chun-en1, LI Wei1, WANG Jun1, et al. A New 10 kV Low Power Electronic Current Transformer[J]. High voltageapparatus, 2008, (4): 312-314+318.
[1]方春恩,李伟,王军,张彼德,侯祥玉.10kV低功率电子式电流互感器LPCT的研究[J].高压电器,2008(04):312-314+318. DOI：

FANG Chun-en1, LI Wei1, WANG Jun1, et al. A New 10 kV Low Power Electronic Current Transformer[J]. High voltageapparatus, 2008, (4): 312-314+318. DOI：

摘要

为了提高电流互感器的可靠性和准确度

从而提高电力系统的安全、稳定和经济运行

笔者详细分析了取样电阻、二次电流精度和干扰电磁场等因素对电子式电流互感器准确度的影响

并提出了相应的改进互感器准确度和电磁兼容措施。在理论分析基础上

研制了一台10 kV低功率电子式电流互感器

并对样机进行了准确度测试。测试结果表明

设计的样机准确度满足IEC 60044-8规定的0.2级测量和5P20保护要求。

Abstract

In order to improve the reliability and accuracy of a current transformer

thereby enhance the power system safety

stability and economical operation

the influences of shunt resistor

secondary current and disturbed electromagnetic field on LPCT’s accuracy were analyzed

and some measures were proposed to improve the accuracy of the transformer.According to the theoretical analysis

a 10 kV low power electronic current transformer was developed and tested.The test results show that the transformer exactly meets the accuracy requirements of IEC 60044-8 0.2 class for measuring current transformers and 5P20 class for protection.

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Related Institution

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