摘要
2004年莱芜电厂一条110kV线路因遭雷击发生故障,进而引起母差保护动作,运行于Ⅱ母线的所有开关全部跳闸,本文通过对母差保护和录波器装置记录的各种故障数据信息进行综合分析,最终查找出保护误动作的原因。
In 2004, one 110KV bus of Laiwu Power Plant failed to function properly caused by the lightning strike. As the result, bus differential protection acted, and subsequently,all formal operating switches of the bus Ⅱ tripped. In this paper,the reason of protection action is identified through synthetically analyzing the information of malfunction data recorded by bus differential protection and recording equipment.
出处
《山东电力技术》
2007年第1期56-58,共3页
Shandong Electric Power
关键词
母差保护
雷击
误动
bus differential
lightning strike
fault - action
