摘要
中性点非有效接地配电网发生单相接地故障时,尽快选出故障线路对提高电网的供电可靠性有重要意义.文章综述了国内外小电流接地系统单相接地故障的保护现状,分析了目前各种保护原理的优点和不足.最后提出了自己的观点.
When single-phase-to-earth fault occurs on a neutral non-direct grounded power system,it is nexessary for improving the reliability of power supplying to select the faulted line quickly. The paper overviews the principle of single-plase-to-earth fault protection for small current neutral grounding at homt and abroad,and analyzes the advantages and disadvantages of the principles being used currently. Finally,it presents my view on single-lhase-to-earth fault protection.
出处
《淄博学院学报（自然科学与工程版）》
2002年第3期43-46,共4页
Journal of Zibo University(Natural Sciences and Engineering)
关键词
小电流接地系统
单相接地故障
检测方法
保护原理
配电网
system with ungrounded neutral
single-phase-to-earth fault
fault line selection
electro-magnetic
arc suppressing coils
protective relaying
