非全相运行对方向高频保护的影响  

Influence of open-phase running on directional comparison pilot protection

作　　者：林峻嵩[1,2] 

机构地区：[1]华中科技大学电力系 [2]揭阳电力工业局调度所,广东揭阳522000

出　　处：《广东电力》2001年第2期16-18,53,共4页Guangdong Electric Power

摘　　要：对高压线路非全相运行中高频保护的零序功率方向元件和突变量方向元件动作性能进行分析 ,并通过对一起 2 2 0kV线路保护误动事故实例的分析 。The article describes the operating characteristics of directional elements of directional comparison pilot protection during the open phase running of the protected transmission line. By analyzing a false action event of a 220 kV line protection, some problems needing attention on the said protection during open phase running are presented as well.

关 键 词：方向高频保护 线路保护 继电保护 非全相运行 电网 

分 类 号：TM773[电气工程—电力系统及自动化]