介绍了流溪河水电厂1号机组的历次处理情况。从机组轴线变化、下导瓦背抗顶块抗压强度、发电机转子动平衡试验等方面着手,通过机组大修和变转速实验,综合分析了1号机组上机架振动增大的原因。通过严格执行检修工艺和检修质量标准,彻底解决了1号机组上机架振动增大的问题。 Described the Liuxihe Hydropower Plant Unit 1 of the previous treatment. The reasons for the increase of rack vibration on unit 1 are analyzed synthetically from unit overhaul and variable speed test from the aspects of unit axis variation, under-tile resistance top block compressive strength and generator rotor dynamic balance test. Through the strict implementation of maintenance processes and maintenance of quality standards, completely solve the rack on Unit 1 increased vibration problems.