Development of an Electronic Current Transformer Without Power Supply at Primary Side Based on Low-power Coil

DING Guocheng; WANG Liufang; ZHEN Chao; SUN Mingli; CAI Tongfu

doi:10.13296/j.1001-1609.hva.2016.08.013

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Development of an Electronic Current Transformer Without Power Supply at Primary Side Based on Low-power Coil

更新时间：2025-04-26

- Development of an Electronic Current Transformer Without Power Supply at Primary Side Based on Low-power Coil
- High VoltageApparatus Vol. 52, Issue 8, Pages: 77-82(2016)
- 作者机构：
  
  1. 国网安徽省电力公司电力科学研究院
  2. 安徽继远电网有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.08.013
  CLC： TM452
- Published：2016
- 稿件说明：
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[1]丁国成,王刘芳,甄超,孙明利,蔡同甫.基于低功率线圈的高压无源电子式电流互感器研制[J].高压电器,2016,52(08):77-82.

DING Guocheng, WANG Liufang, ZHEN Chao, et al. Development of an Electronic Current Transformer Without Power Supply at Primary Side Based on Low-power Coil[J]. High voltageapparatus, 2016, 52(8): 77-82.
[1]丁国成,王刘芳,甄超,孙明利,蔡同甫.基于低功率线圈的高压无源电子式电流互感器研制[J].高压电器,2016,52(08):77-82. DOI： 10.13296/j.1001-1609.hva.2016.08.013.

DING Guocheng, WANG Liufang, ZHEN Chao, et al. Development of an Electronic Current Transformer Without Power Supply at Primary Side Based on Low-power Coil[J]. High voltageapparatus, 2016, 52(8): 77-82. DOI： 10.13296/j.1001-1609.hva.2016.08.013.

摘要

针对当前电子式电流互感器工程应用中存在的问题

研制了一种基于低功率线圈的高压无源电子式电流互感器

并完成电子式电流互感器用低功率测量线圈、低功率保护线圈及远端模块等各部分设计与制造

弥补了传统罗氏线圈作为保护电流传感器所存在的固有缺陷。同时

针对电子式电流互感器制造过程中各个环节存在的主要问题

介绍了设计思路和解决方案

并建立试验条件

对研制的1台110 k V样机进行了室温条件下的准确度进行了测试

试验验证了低功率线圈作为电子式电流互感器保护电流传感器的可行性。

Abstract

To repair the inherent defects of the Rogowski coil as it performs in the role of protective current transducer

a kind of electronic current transformer without power supply at primary side was developed based on low-power coil

in which the low-power protection coil

low-power measurement coil

and remote module were designed and produced. The design ideas and solutions to the main problems existing in every phase of production process of the electronic current transformer are described in this paper. Test was conducted to measure the accuracy of a prototype of 110 k V electronic current transformer at room temperature

and the result verifies the feasibility of the low-power coil as protective current transducer for the electronic current transformer.

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