直孔水电站发电机失磁保护问题的探讨  

Discussions on the Problems of Loss of Field Protection of Power Generator for Zhikong Hydropower Station

作　　者：钟海华[1] 刘瑜[1] 吴诗铭[1] 

机构地区：[1]武警水电第八支队,福建厦门361009

出　　处：《水力发电》2008年第5期88-90,共3页Water Power

摘　　要：发电机失磁保护对电网运行的安全尤为重要,特别是在西藏这样的小电网中的水电站机组保护。对直孔水电站发电机失磁保护的方法及原理进行了分析,并探讨了电站在发电机失磁保护定值及原理中存在的一些问题。提出了建议和意见。The loss of field protection of power generator is very important for the operation safety of power grid, particularly in such small Tibet Power Grid. This paper analyzes the method and principles of the loss of field protection of power generators for Zhikong Hydropower Station and discusses some existing problems of the principles and the fixed set point of loss of field protection of power generator of the Station. Finally some suggestions and opinions are put forward.

关 键 词：保护定值 阻抗圆 失磁保护 直孔水电站 

分 类 号：TM77[电气工程—电力系统及自动化]