750kV并联电抗器新原理的匝间短路及单相接地保护研制  

Research and design on 750 kV parallel connection reactor new theories of the turn-to-turn short circuit and single phase earthing protection

作　　者：郭宝甫 张建国 赵应兵 姚晴林[3] 

机构地区：[1]许继集团,河南许昌461000 [2]宁东供电局,宁夏宁东751001 [3]合肥工业大学,安徽合肥230009

出　　处：《继电器》2005年第19期10-13,共4页Relay

摘　　要：提出一种新原理的绝对值比较式零序方向保护,它既能保护电抗器绕组匝间短路,又能保护内部单相接地,它的动作灵敏度及可靠性在原理上比传统的零序功率方向保护及补偿式零序方向保护要高。A new type zero-sequence directional protection based on the comparison of absolute value is presented in the paper. It can protect not only the reactor turn-to-turn short circuit, but also the internal single phase earthing protection. From the point of view of the theory, the sensitivity and reliability of this new type protection are higher than the traditional zero-sequence directional protection or the compensatory zero-sequence directional protection.

关 键 词：并联电抗器 零序方向继电器 匝间短路 

分 类 号：TM77[电气工程—电力系统及自动化]