横联方向差动保护在同杆四回输电线路中的应用  

Application of Transverse Differential Protection to Quadruple Circuit Transmission Line

作　　者：陈敏[1] 袁成[1] 金红核[1] 邰能灵[2] 

机构地区：[1]上海市电力公司超高压输变电公司,上海200063 [2]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《水电能源科学》2011年第7期170-173,共4页Water Resources and Power

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.

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 

分 类 号：TM72[电气工程—电力系统及自动化] TM772