电流互感器5%误差曲线测试数据的矫正Measurement Data Correction of 5% Error Curve of Current Transformer
赵晓明,余志慧
ZHAO Xiaoming,YU Zhihui
摘要(Abstract)：
在进行TA(电流互感器)5%误差曲线测试时,发现用OMICRON TA测试仪得出的数据失真。利用TA励磁曲线数据,重新对5%误差曲线进行了手工计算,得出了矫正后的数据曲线。通过对不同TA测试数据的分析和对比,指出此测试仪在5%误差曲线绘制时可能存在拟合错误。
This paper introduces a 5% error curve test case of TA(current transformer) in a power plant and finds that there is data distortion obtained by OMICRON TA tester. By using excitation curve data of TA, 5%error curve is manually recalculated and data curve after correction is then obtained. By analyzing and comparing different TA test data, the paper points out probable matching error while the tester draws 5% error curve.
关键词(KeyWords)：
电流互感器;5%误差曲线;励磁曲线
current transformer;5% error curve;excitation curve
基金项目(Foundation):
作者(Author):
赵晓明,余志慧
ZHAO Xiaoming,YU Zhihui
DOI: 10.19585/j.zjdl.2014.05.012