摘要
文章在综述了国内外小电流接地系统单相接地故障保护现状的基础上，分析了目前各种保护原理的优点与不足，介绍了新颖的零序电流有功分量方向保护原理。
Based on the overview of the principle of single\|phase\|to\|ground fault protection for small current neutral grounding at home and abroad, this paper analyzes the advantages and disadvantages of principles for all kinds of single\|phase\|to\|ground fault protection being used currently. A new principle based on active component direction of zero\|sequence current is put forward. At the same time, the action parameters of selective grounding fault protection device are presented.
出处
《电网技术》
EI
CSCD
北大核心
1999年第9期60-62,共3页
Power System Technology
关键词
小电流接地系统
接地保护
选择性
动作参数
non\|direct\|grounded neutral system
ground\|fault protection, selectivity
action parameter
