二次负载对电流互感器误差的影响及测试方法  

Effects of secondary load on error of current transformers and its test method

作　　者：胡静斐[1] 

机构地区：[1]广东省电力试验研究所,广州510600

出　　处：《广东电力》2005年第12期59-61,74,共4页Guangdong Electric Power

摘　　要：电流互感器二次负载阻抗对电流互感器误差有较大的影响。为此,通过电流互感器等值电路和误差曲线,分析了电流互感器的二次负载特性,并讨论了电流互感器标准装置二次回路阻抗的测试原理和方法。Secondary load impedance of a current transformer （CT） has great influence on the error of the CT. By use of the CT equivalent circuit and error curve, the secondary load characteristics of CT are analyzed. The principle and method for testing the impedance in the secondary circuit of CT standard calibrator units are discussed as well.

关 键 词：电流互感器 二次阻抗 误差 

分 类 号：TM930.1[电气工程—电力电子与电力传动]