9FA机组开入量装置掉电保护动作分析及对策  

Analysis on Protection Action to Power Failure of Binary Input Device of 9FA Unit and the Countermeasures

作　　者：汪明 

机构地区：[1]福建晋江天然气发电有限公司,福建晋江362251

出　　处：《电力与电工》2010年第3期44-45,共2页Electric Power and Electrical Engineering

摘　　要：介绍了一起国产化9FA机组并网后发变组保护开入量装置掉电,导致发电机低频过流保护误动跳机的事件;分析掉电后保护动作过程,提出了整改方案。This paper introduces an event that the binary input device of generator-transformer-group protection of a demestication 9FA unit losted power after synchronization,the low-frequency over-current protection misoperated and thus caused the unit trip.The paper analyzes the process of protection after the power falled down,and presents rectification measures

关 键 词：9FA机组 发变组保护 开入量装置 低频过流保护 

分 类 号：TM77[电气工程—电力系统及自动化]