水轮发电机在环境潮湿时或长期停运后容易造成转子受潮,转子绝缘能力降低,影响机组正常运行。本文结合水轮发电机结构特点,对转子受潮的原因进行了分析与判断,并介绍了一种全新的热风干燥法处理发电机转子受潮缺陷,简便可行,安全可靠,效果良好。 Turbine generator in the wet environment or long-term outage easily lead to damp rotors, reduce the insulation capacity of the rotor, affecting the normal operation of the unit. In this paper, the causes of rotor damp are analyzed and judged according to the structural characteristics of hydroelectric generator, and a new hot air drying method is introduced to deal with damp defects of rotor of generator, which is simple, feasible, safe and reliable with good effect.