摘要
针对10 kV配电网馈线短、负荷大,开闭所、环网柜使馈线分段多的问题,进行原因分析,提出解决方案。改进结果表明:采用就地保护,通过上下级保护闭锁,既可靠又经济,可有效提高10 kV配网开关跳闸的选择性。
Aiming at the problems of the 10 kV distribution network such as short feed line, big load and many subsection in feed line of ring main unit, analyzes the cause and puts forward solving proj- ect. The improvemenf result shows that using local protection device, by higher and lower protection devices closedown, can advance the selectivity of switch trip in 10 kV distribution network, has both reliablity and economy.
出处
《宁夏电力》
2013年第5期16-19,共4页
Ningxia Electric Power
关键词
配电网
保护
闭锁
distribution network
protection device
closedown
