测定小电流接地系统电容电流的一种新方法

Increment Method"-A Method of Measuring Capacitive Current with the Small Current Grounding System

本文从理论上论证了以微分近似算法的原理来测定电容电流的可能性,并首次在龙凤热电厂6千伏系统中应用。这种测试方法与习惯沿用的其它一些间接方法相比,显得安全、简单,且能避开三次谐波的影响。

This paper proved the possibility of measuring capacitive current using the principle of differential approximate calculation in terms of theory. The first practice of increment method was in the 6kV distribution network of the Longfeng power plant. The method is safe and simple than other indirect measuring methods, and it can aviod the influence of the third harmonic.