Method to measure the error of DC transformers based on current comparator

LI Kai; LUO Zhi-kun; OU Chao-long; BAI Yong-zhi; WAN Quan

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Method to measure the error of DC transformers based on current comparator

更新时间：2025-11-18

- Method to measure the error of DC transformers based on current comparator
- Vol. 30, Issue 5, Pages: 41-44(2010)
- 作者机构：
  
  湖南省电力公司试验研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM452.92
- Published：2010
- 稿件说明：
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[1]李恺,罗志坤,欧朝龙,白勇智,万全.基于电流比较仪测试直流互感器误差的方法[J].湖南电力,2010,30(05):41-44.

LI Kai, LUO Zhi-kun, OU Chao-long, et al. Method to measure the error of DC transformers based on current comparator[J]. 2010, 30(5): 41-44.
[1]李恺,罗志坤,欧朝龙,白勇智,万全.基于电流比较仪测试直流互感器误差的方法[J].湖南电力,2010,30(05):41-44. DOI：

LI Kai, LUO Zhi-kun, OU Chao-long, et al. Method to measure the error of DC transformers based on current comparator[J]. 2010, 30(5): 41-44. DOI：

摘要

本文分析直流互感器的基本结构和测量功能

介绍基于电流比较仪来实现对直流互感器误差的测试方法。电流比较仪采用磁芯零磁通原理对激磁电流进行反馈补偿

其测量准确度理论上可以达到1×10-5。

Abstract

This article analyzes the basic principle and measuring function of direct-current（DC） transformers

and introduces a method to measure the error of DC transformers based on current comparator.The current comparator compensates for reactively excitation current by the zero-flux principle

and measurement accuracy can reach 1×10-5 in theory.

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