摘要
针对四回线路间存在互感及异常复杂的跨线故障给同塔四回输电线路的故障分析、保护方案研究带来的挑战,基于同杆四回线的结构形式,提出在参数相同的两条线路上分别装设横联方向差动保护装置的方案,并以线路参数和结构为依据,归类与分析了同杆四回线的各种故障。仿真计算结果表明,该方案有效,可为类似工程提供参考。
Owing to many kinds of complicated faults and mutual inductance, the relay protection of four parallel lines will face lots of new challenges. This paper introduces a new transverse differential protection with quadruple circuit transmission line. And the protection relay will be installed at the two different double lines with the same parameters. According to the line parameters and its structure, the rule of the different faults of the quadruple circuit transmission line is summarized. Test results show that the proposed scheme is effective, which can provide reference for similar engineering project.
出处
《水电能源科学》
北大核心
2011年第7期170-173,共4页
Water Resources and Power
关键词
同杆四回线
横联方向差动保护
线路参数
转换性故障
quadruple circuit transmission line
transverse differential protection
line parameters
developing fault
