摘要
继电保护二次回路设计正确与否对保护动作行为影响重大。220 kV及以上双母线接线线路保护通常采用双套配置。在确保可靠实现继电保护功能的前提下,应尽可能减少保护之间的联系。但在实际工程应用中由于受重合闸运行方式及组柜方案的影响,2套线路保护之间可能存在联系。通过详细的分析,重点阐述了不同重合闸运行方式下,2套线路保护之间重合闸不需要相互启动、需要相互闭锁的原因及闭锁方案。
The correct design of the secondary circuit in the relaying protection is playing a significant role in the line protection. The duplex configuration of line protection is commonly adopted in the case of double-bus connection with voltage level 220 kV or above. The coordinated relation should be reduced as less as possible in the context of the function could be realized in two sets of protection. But actually, in the practical applications, the two sets of protection may set a kind of connection, which caused by the run mode of the reclosing and the cubicle arrangement. Through detailed analysis, the related cause and scheme between the two sets of protections were particularly clarified.
出处
《中国电力》
CSCD
北大核心
2010年第8期73-76,共4页
Electric Power
关键词
双母线
线路保护
重合闸
double bus
line protection
reclosing
