汽轮发电机转子突发性振动问题分析  

Analysis of Sudden Vibration of Turbo-generator Rotor

作　　者：张学延[1] 张卫军[1] 王延博[1] 

机构地区：[1]国家电力公司热工研究院,陕西西安710032

出　　处：《中国电力》2001年第12期11-15,共5页Electric Power

摘　　要：讨论运行中发电机转子产生突发性振动问题的机理、振动特点和诊断方法,并结合现场的分析处理实例予以阐述。认为突发性振动原因是运行中转子的油膜涡动和匝间短路、线圈膨胀受阻等引起的热不平衡。The mechanism,features and diagnosis method of sudden vibration of turbo-generator rotor during its operation are described in this paper.Some on-site vibration analysis and trouble-shooting cases are also given out.It is concluded that the causes of sudden vibration are oil film whirl and thermal unbalance of generator rotor resulting from interturn short-circuit and hindered winding expansion etc.during operation.

关 键 词：汽轮发电机 转子 突发性振动 预防 

分 类 号：TM311[电气工程—电机]