PT法带电测量单相电容型设备电容量及tgδ

Measurement of tgδ and Capacitance of Single Phase Electric Apparatus in Service With PT Method

本文着重分析了PT法带电测tgδ的干扰和系统误差来源,并提出了排除方法和修正算法。十余年的实测数据及其统计分析证明此法切实可行,并具备很多优点。

This paper emphatically analyses the sources of the interference and system errors in the measurement of tgδ with PT method on line, and proposes measures of eliminating them and methods to correct the calculations. It has been proved by actually measuring data and statistical analysis for more than ten years that this method is feasible and has many advantages.