继电保护整定计算的简化  

Simplify calculation of line protection settings

作　　者：廖晓玉[1] 张太升[1] 杜凌[1] 鄢安河[1] 程鹏[1] 

机构地区：[1]河南电力调度通信中心,河南郑州450052

出　　处：《继电器》2003年第8期67-71,共5页Relay

摘　　要：结合河南电网 2 2 0kV线路已实现保护微机化的实际情况 ,对规程的要求和保护的实际作用进行了论证分析 ,提出了简化继电保护整定计算的方法 :取消零序Ⅰ段、简化零序Ⅳ段计算。All 220 kV lines of Henan power system use computer based protection.According to this,this paper analyzes the requirements of calculation rules issued by Ministry of Electric Power and the real roles of various line protections.Finally,some methods to simplify setting calculation works for system protections are given:canceling the application of zero sequence overcurrent Ⅰ protection;simplifying the setting calculation method of zero sequence overcurrent Ⅳ protection and unifying the setting value of the grounding distance and the phase distance protections.

关 键 词：电网 电力系统 继电保护 微机保护 整定计算 距离保护 线路保护 

分 类 号：TM77[电气工程—电力系统及自动化]