同塔四回线线间互感对接地距离保护的影响及对策  

Influence of mutual inductance to the distance protection of quadruple-lines on the single tower and the solution

作　　者：金红核 任明珠[1,2] 袁成 邰能灵[2] 

机构地区：[1]上海市超高压输变电公司,上海200063 [2]上海交通大学电气工程系,上海200240

出　　处：《华东电力》2009年第8期1346-1351,共6页East China Electric Power

摘　　要：通过分析同塔四回输电线路的结构特点和运行方式,研究线间互感对于接地距离保护性能的影响,并提出改进措施,即根据四回线的不同运行方式选择其相应的零序补偿系数。在此基础上,还提出一种采用非故障线路零序电流补偿的接地距离保护方法。The structure characteristics and operating mode of the quadruple-lines on the single tower are introduced, and the influence of mutual inductance to the distance protection is studied. Proposals of choosing appropriate zero sequence compensating coefficient according to different operating mode for further improvement are given. Besides, grounding distance protection method is also recommended, which is based on the zero sequence current compensating of the non-faulty lines.

关 键 词：四回线 零序补偿系数 零序线间互阻抗 测量阻抗 

分 类 号：TM588[电气工程—电器]