摘要
论文以一起400kV线路单相接地故障为案例,结合故障波形,对该线路各套继电保护装置的动作行为进行了分析和计算,同时探讨了过渡电阻对距离保护的影响及对策。
In this paper,a single phase to earth fault of 400 kV line is taken as a case. Combined with the fault waveform, the action of relay protection devices of the line is analyzed and calculated. Meanwhile, the influence and countermeasures of transition resistance on distance protection are discussed.
作者
李刚
LI Gang(Daya Bay Nuclear Power Operations and Management Co. Ltd., Shenzhen 518124, China)
出处
《中小企业管理与科技》
2018年第14期187-188,191,共3页
Management & Technology of SME
关键词
差动保护
距离保护
过渡电阻
differential protection
distance protection
transition resistance
