大接地电流系统零序电流保护  

Zero-sequence current protection of ground current system

作　　者：刘艳芬[1] 张嘉星[1] 

机构地区：[1]包头钢铁(集团)有限责任公司供电厂,内蒙古包头014010

出　　处：《包钢科技》2000年第4期40-43,共4页Science & Technology of Baotou Steel

摘　　要：通过对大接地电流系统零序电流的分析、计算 ,阐述了用于接地短路的零序电流保护的构成及整定原则 ,并介绍了在包头第一热电厂及包钢 5 1#总降压变电所Based on the analysis and calculation of zero-sequence current of ground current system, the paper presents the structure and adjusting principle of zero-sequence current protection, and introduces its application on Baotou First Heat Power Plant and 110kv network of Baotou Steel 51 # head step-down transformer substation.

关 键 词：大接地电流系统 零序电流保护 对称分量法 整定计算 

分 类 号：TM771[电气工程—电力系统及自动化] TM713