操作隔离开关对中阻抗及微机母线保护选择性的影响  

Effect of Isolator Operation on Medium Impedance and Digital Bus Bar Protection Selectivity

作　　者：甄洪沃[1] 尹项根[1] 杨经超[1] 

机构地区：[1]华中科技大学电力系,湖北武汉430074

出　　处：《电力自动化设备》2001年第5期12-14,共3页Electric Power Automation Equipment

摘　　要：详细分析了操作隔离开关对中阻抗及微机母线保护选择性的影响 ,指出在进行隔离开关合、分闸操作过程中 ,若母线发生故障 ,存在导致扩大故障范围和造成人身伤亡的可能性 。The effect of isolator operation on the selectivity of medium impedance and digital bus bar protections is analyzed. It is pointed out that, if bus bar fault occurs during the open or close operation of isolator, the fault zone may expand and the hazard to personnel may happen.Some suggestions and concepts are proposed.

关 键 词：隔离开关 母线保护 微机保护 中阻抗 继电保护 电力系统 

分 类 号：TM773[电气工程—电力系统及自动化]