摘要
文章介绍了小电流接地方式的发展简况,在分析小电流接地故障稳态与暂态信号变化特征的基础上对各种接地选线技术进行了评述。文章还介绍了一种最近开发出的利用暂态信号的接地选线技术的应用情况,这种新技术灵敏度高、可靠性好,特别适用于谐振接地电网。
The ways of small current ground connection was introduced in this paper.Based on analysis of homeostasis and transient state signal changing characters,we compared different ground connecting methods.We also discussed the newly developed,using transient state signal routing method.This method is more sensitive,more reliable.It is an ideal method for resonance ground connecting power grid.
出处
《华北电力技术》
CAS
2009年第6期45-49,共5页
North China Electric Power
关键词
电力系统
配电网
中性点接地
小电流接地系统
故障选线
power system
distribution network
neutral point ground connection
small current ground connection system
failure routing
