某大型燃气轮发电机转子绝缘电阻低的原因分析及处理  

Analysis and treatment of the cause of low insulation resistance of the rotor in a large combustion turbine generator

作　　者：汪伟[1] 胡春秀[1] 杨洲[1] 于鸿浩 WANG Wei;HU Chunxiu;YANG Zhou;YU Honghao(Harbin Electric Machinery Co.,Ltd.,Harbin 150040,China)

机构地区：[1]哈尔滨电机厂有限责任公司,哈尔滨150040

出　　处：《上海大中型电机》2024年第3期55-58,共4页Shanghai Medium and Large Electrical Machines

摘　　要：针对某大型燃气轮发电机转子在多个电厂存放、安装期间均出现对地绝缘受潮电阻低,且烘焙后对地绝缘电阻无法维持,从GΩ级快速将至kΩ级的现象,系统分析排查,验证了问题产生的原因,明确了具体预防举措,对同类型产品安装及日常维护具有很好的指导意义。In view of the phenomena of the rotor in a large combustion turbine generator,such as low resistance due to ground insulation damped and the insulation resistance to ground unable to be maintained after baking,from GΩlevel quickly falling to kΩlevel occurred during storage and installation in several power plants,systematic analysis and screening is made so as to have verified the cause of problem,defined the specific prevention measures and,with a good guiding significance for the same type of product installation and daily maintenance.

关 键 词：转子 绝缘电阻 受潮 烘干 

分 类 号：TM302[电气工程—电机]