1000 kV特高压变电站电流互感器误差测试方法对比分析

摘要

目前在电流互感器误差测试中测量比差及角差的试验方法为比较作差法，试验设备笨重且操作复杂。本文介绍了一种实用、方便的间接测量方法，利用电流互感器的伏安特性曲线，采用矢量计算法，求得电流互感器的角差、比差。最后将矢量计算法与比较作差法测试结果进行比较，证明了矢量计算法的有效性。%The current transformer ratio error and angle error testing method is comparison for difference, which uses heavy equipment and the operation is complicated. This paper introduces a practical, convenient and indirect measurement method which uses volt-ampere characteristic curve of current transformer. It applies vector calculation method to obtain TA ratio error and angle error, and makes a comparison with the traditional method. In the end, proves the validity of the vector calculation method.