ABB高压开关最低动作电压偏低情况分析  

Analysis on the Lowest Action Voltage of ABB High Voltage Switch

作　　者：周晓东 代述明 

机构地区：[1]国电大渡河公司流域检修安装分公司,四川乐山614900

出　　处：《四川水力发电》2008年第4期115-116,共2页Sichuan Hydropower

摘　　要：龚嘴水力发电总厂所辖的龚嘴和铜街子电站共装有63台220 kV电压等级的ABB高压开关和7台20 kV电压等级的ABB机组出口开关。近年来,相继发现有11台ABB高压开关存在分合闸线圈最低动作电压偏低现象,不利于设备的安全稳定运行。对该问题进行了深入分析、查找原因并提出了解决方案,线圈更换处理后设备运行正常。There are 63 220kV ABB high voltage switches and 7 20kV ABB unit outlet switches in Gengzui and Tongjiezi hydro- power stations of Gongzui Hydropower General Plant.In recent years,11 ABB switches have been found being lower than the lowest action voltage of cutting and closing coil,which is adverse to safe and stable operation of the equipment.In this paper,the author performs an in-depth analysis of the problem,finds out the reasons and proposes solutions.The equipment operates nor- really after replacing coils.

关 键 词：ABB开关 分合闸线圈 动作电压 龚嘴水力发电总厂 

分 类 号：TM561[电气工程—电器]