平行运行线路互感对纵联零序方向保护的影响  

Effects of Mutual Inductance of Parallel Transmission Lines on Longitudinal Zero-sequence Protection

作　　者：李钢[1] 冯辰虎[1] 孙集伟[2] 牛四清[2] 

机构地区：[1]华北电力科学研究院有限责任公司,北京100045 [2]华北电力调度通信中心,北京100053

出　　处：《华北电力技术》2007年第12期1-4,共4页North China Electric Power

摘　　要：介绍了平行运行线路的零序互感效应对线路纵联零序方向保护产生影响的形式和原理,通过理论分析、实验室仿真试验、电网事故分析实例从平行运行线路强电强磁联系和弱电强磁联系这两种情况对该课题进行了详细的分析研究,并提出了预防措施。The effects of mutual inductance of parallel transmission lines on longitudinal zero-sequence protection was introduced. Through theoretical analysis, simulation in laboratory, and accident analysis of power grid ,the operation of parallel transmission lines with high current-high magnet and low current-strong magnet was analyzed in this paper. The preventive measures were also put forward.

关 键 词：同杆并架 纵联零序方向保护 互感 

分 类 号：TM626[电气工程—电力系统及自动化]