基于RTDS的小接地系统单相接地故障选线方法比较分析

Analysis of fault line selection method of non-solid earthed power system based on RTDS

小接地系统发生单相接地故障的几率很高,目前针对该故障的选线方法有很多种。在RTDS上建立一个小接地系统,在其线路上模拟各种典型故障,测试各种选线方法对故障线路判别的正确与否,选出一个最适合用于小接地系统单相接地故障选线的方法。

Single-phase grounding fault occurrs frequently in non-solid earthed power system. There are many ways for the fault line selection. In this paper, a non-solid earthed power system based on RTDS is built , and typical faults on its transmission line are simulated to testify the efficiency of each selection method. By that, the most efficient one could be gained.