发电机过激磁反时限保护动作原因分析及处理措施  

Analysis and treatment measures of generator over-excitation antitime protection action

作　　者：史国伟 SHI Guo-wei(Hydropower Plant of Tianshengqiao-1 Hydro-Power Development Limited Company,Xingyi 562400,China)

机构地区：[1]天生桥一级水电开发有限责任公司水力发电厂,贵州兴义562400

出　　处：《广西水利水电》2018年第4期60-61,64,共3页Guangxi Water Resources & Hydropower Engineering

摘　　要：通过一起发电机过激磁反时限保护异常起动事件,探讨了电厂AVC增磁/减磁闭锁条件中机组定子电压上、下限值设置以及励磁调节器伏赫兹限制与发电机过激磁保护定值配合中需要注意的问题,并提出了处理措施。Analysis was made on an abnormal action of generator over-excitation anti-time protection occurred at a hydropower plant,based on which the author discussed the issues in need of special attention when setting the upper and lower limits of stator voltage for AVC increasing/decreasing excitation locking,and when coordinating the Volt Hertz limit of excitation regulator and generator over-excitation protection setting value.Treatment measures were also put forward.

关 键 词：AVC增减磁闭锁 过激磁反时限保护 伏赫兹限制 励磁限制与保护配合 

分 类 号：TM312[电气工程—电机] TV735[水利工程—水利水电工程]