500 kV变电站谐波测试方法

章介绍了采用TA末屏信号分压，经过TA末屏电压信号放大器将测量信号引入谐波测量分析系统的高压系统谐波测试新方法。经过河北南部电网大量的CVT、TA末屏对比测试试验证明，该方法安全、方便、准确、实用，解决了CVT不能用于谐波测量的困扰。

Harmonic Test Method for 500 kV Substation

This paper introduces the new method of harmonic test for HV system, adopting the end screen signal divider of TA, and through TA end screen voltage signal amplifier to lead the measurement signal into the harmonic measurement and analysis system. Comparative tests of CVT and TA end screen in Hebei southern power grid show that this method is safety and convenient, accurate, practical, and to solve the problem that CVT can not be used in harmonic measurement.