电流互感器校验原理及方法分析

Principle and Method of Key Link in Current Transformer Verification

结合电流互感器校验在变电站中的实际应用,以现行电流互感器的技术标准为依据,分析了电流互感器极性测试、比差角差测试、伏安特性、10%误差曲线4个关键环节的测试原理及方法,对电流互感器校验工作具有一定的指导意义。

Current transformer calibration is a very important routine test project of power supply company. Combined with the practical application of current transformer calibration in substation, and the current technical standard of current transformer, this paper expounds comprehensively the principle and method of four key items, including the polarity test, the Ratio and an- gle difference test, Volt ampere characteristic ,and the 10% error curve.