摘要
我国煤矿井下电网普遍采用中性点不接地系统,该系统的单相接地故障选线问题一直是井下电力系统继电保护的重要研究课题。对目前井下小电流接地系统单相接地故障选线方法的典型选线方法做出归纳,提出现今的研究方向。
At present the coal mine power grid in China uses the isolated neutral system widely. Further,the line selection of single-phase grounding fault in this system has always been a significant study topic in the underground power system protections. In this paper,the typical line selection methods were concluded about single- phase grounding fault in small current grounding system,and the current research directions were proposed.
出处
《煤矿安全》
CAS
北大核心
2015年第1期85-88,共4页
Safety in Coal Mines
基金
广西科学研究与技术开发计划资助项目(桂科能1298019-2)
关键词
中性点不接地系统
单相接地故障
故障选线
漏电保护
智能化
isolated neutral system
single-phase grounding fault
fault line selection
electric leakage protection
intelligent
