利用零序电流法的小电流接地选线方法的实现

Realization of Small Current Earth Selecting Wire by Zero Sequence Drying Method

本文从单相接地故障时产生的零序电流入手,从理论出发结合温州电网的实际情况逐步推进,实现基于零序电流法的小电流接地选线的方法。结果表明该方法有效可行,切实减少电网负荷损失,保障电网安全稳定运行。

The paper starts with zero-sequence current when single phase earth fault occures,combine theory with actual conditions of Wenzhou network to achieve small current earch selecting wrie method based on zero-sequence current method. The result shows that the method is efficient and can reduce the network load losses and ensures the network operation in safety.