摘要
以大秦线扩能改造前后发生的高阻接地故障为例,从介绍电流增量保护原理入手,分析了牵引供电系统高阻接地问题,探讨了电流增量保护的意义。
Taking the faults of high resistance grounding before and after the capacity expansion of Datong-Qinhuangdao Line,and starting from the introduction of current increment protection principles,this paper analyzes the problem of high resistance grounding in tractive power supply system,and probes into the significance of current increment protection.
出处
《科技情报开发与经济》
2009年第28期157-159,共3页
Sci-Tech Information Development & Economy
关键词
牵引供电系统
高阻接地
电流增量保护
大秦线
tractive power supply system
high resistance grounding
current increment protection
Datong-Qinhuangdao Line
