变压器中性点接地方式对零序保护的影响  

The Influence from Neutral Point Eearthing Mode of Transformer to Zero Sequence Protection

作　　者：王友怀[1] 

机构地区：[1]湖北省电力公司调度中心,湖北武汉430077

出　　处：《湖北电力技术》2004年第6期25-27,共3页

摘　　要：　讨论了2台Y0/Y0/Δ接线且无绝缘要求变压器的220kV变电站的变压器中性点几种常见的接地方式,并就变压器110kV侧中性点接地方式对母线等值零序阻抗及零序保护的影响做了具体分析。Several kinds of neutral point earthing modes of two Y0/Y0/△ transformers,without insulation requirement,at a 220 kV substation were discussed.The influence to the bus equivalent zero sequence impendance and zero sequence protection from the different neutral point earthing mode of the transformer's 110 kV side were specifically analyzed.

关 键 词：自耦变压器 零序保护 中性点接地方式 变电站 

分 类 号：TM411.3[电气工程—电器] TM63