小电流接地系统单相接地故障分析及选线研究

Single-phase Grounding Fault Analysis and Study of Line Selection for the Small Current Grounding System

分析了小电流接地系统单相接地运行时几种易出现的故障,阐述了接地故障的判别方法及对策,并在此基础上研究了小电流接地系统单相接地的选线方案。实验证明,该系统可准确地对单项接地故障进行确认并报警。

This paper analyzes several common malfunctions in case of single-phase grounding for the low current grounding system, presents the methods for fault identification and countermeasure for grounding malfunctions, on the basis of which it studies single phase wire selection for the low current grounding system. Experiments show that this system can identify fault accurately and giving an alarm.