四边形特性距离保护躲负荷性能分析  

Relation between load impedance and distance relay with quadrilateral characteristics

作　　者：张太升[1] 罗承廉[1] 杜凌[1] 刘海洋 

机构地区：[1]河南省电力公司,河南郑州450052 [2]洛阳首阳山电厂,河南洛阳417900

出　　处：《继电器》2004年第1期28-31,36,共5页Relay

摘　　要：四边形特性的距离保护,其电阻分量可以单独整定,反应接地电阻的能力较强。本文对四边形特性距离保护躲负荷性能进行了研究,给出了可靠系数的计算公式。Because the value of the resistance components can be set independently, a quadrilateral-characteristic distance relay is very sensitive to a large earthed resistance when faults.In view of that,the relation between the load impedance and the quadrilateral characteristics of a distance relay in R-X plane is analyzed in detail.And also,the method to reliability coefficient calculation is put forward.

关 键 词：电力系统 四边形特性 距离保护 功率因数 线路负荷 性能分析 继电保护 

分 类 号：TM711[电气工程—电力系统及自动化]