1000MW机组发电机定子接地保护误动分析  

Analysis on Maloperation of Ground Fault Protection for 1000 MW Generator Stator

作　　者：杜宁宁 邢涛 

机构地区：[1]华电国际电力股份有限公司技术服务中心,济南250014 [2]华电国际电力股份有限公司山东分公司,济南250014

出　　处：《山东电力技术》2016年第12期34-35,共2页Shandong Electric Power

摘　　要：对一起1 000 MW火力发电机组跳闸事故进行分析,发现是由发电机定子接地保护误动引起的。通过故障录波分析,检查一次设备故障情况,确定保护误动原因,并提出相应处理措施,为类似问题的处理提供借鉴。A 1 000 MW thermal power unit trip accident caused by generator stator grounding protection misoperation was introduced. According to the fault record analysis and the fault condition of primary equipment, the cause of fault was identified. Relevant treatment measures were put forward, which could provide references for similar problems.

关 键 词：TV断线 定子接地保护 误动原因分析 继电保护 定值管理 

分 类 号：TM77[电气工程—电力系统及自动化]