10kV线路单相接地母线电压异常的分析

Analysis of Abnormal Voltage of Single-phase Grounding Bus of 10kV Line

基于案例分析,阐述单相接地故障、监控系统母线电压显示不正确缺陷,分析4PT接线方式的特点,从而寻找引起缺陷的原因,提出防范和发现零序接线错误的建议。

Based on the case analysis,this paper expounds the defects of single-phase grounding fault and incorrect display of bus voltage of monitoring system,analyzes the characteristics of 4PT wiring mode,so as to find the causes of defects,and puts forward some suggestions to prevent and find zero sequence wiring errors.