两变电站中变压器零序电流保护的分析  

Analysis of zero sequence current protections for transformers in two particular substations

作　　者：王伟[1] 邓幼平[1] 

机构地区：[1]黄石供电局,湖北黄石435000

出　　处：《继电器》2001年第7期57-58,共2页Relay

摘　　要：分析了栖变、姜变中变压器零序过流方向保护及零序过流保护的动作原理 ,阐述了其中的异同点 ,指出了姜变变压器零序过流保护的优越性。This paper analyses the operation principle of zero sequence over current directional protection and zero sequence over current protection of the transformers in Qiruqiao substation and Jiangjialong substation,states the difference and sameness between them,indicates superiority of zero sequence over current protection in Jiang substation.

关 键 词：变压器 零序过流保护 后备保护 电网 变电站 

分 类 号：TM772[电气工程—电力系统及自动化]