发电机定子接地保护动作分析及解决措施  

Analysis and Treatment of a Generator Stator Grounding Protection Fault

作　　者：张国超[1] 张贝贝[2] 刘向磊[1] 

机构地区：[1]湖北清江水电开发有限责任公司,湖北宜昌443000 [2]三峡电力职业学院,湖北宜昌443000

出　　处：《水电与新能源》2017年第1期63-66,共4页Hydropower and New Energy

摘　　要：介绍了柬埔寨达岱水电站3号发电机定子接地保护故障,对故障原因进行了检查分析,根据检查分析结果提出了解决措施。对电机定子线棒进行了检修,并进行定子和转子相关参数试验、升流及短路特性试验、升压及空载特性试验、发电机空载特性试验等。结果表明,机组经检修后运行正常。In the No. 3 generator unit of Cambodian Tatay Hydropower Station,a stator grounding protection fault was observed. Possible reasons of this fault are analyzed and treatment measures are proposed. After the maintenance of the stator bar,various tests are carried out,including the stator and rotor parameter test,current rising and short circuit characteristic test,voltage rising and no- load characteristic test,generator no- load characteristic test. The results show that the generator unit operates well after the maintenance.

关 键 词：发电机定子 接地保护 故障 解决措施 

分 类 号：TM312[电气工程—电机] TV737[水利工程—水利水电工程]