随着大容量、大尺寸、高水头、高转速水轮发电机组的日益增多,其振动问题显得比较突出,有些水电厂,能及时找出机组振动过大的原因,进行处理,这无疑将提高机组运行的可靠性。但也有一些水电厂的机组,由于未及时找出振动过大的原因,使机组较长时间在不良条件下运行,对这些机组,除了应当加强运行中的监测外,还应当 With the large capacity, large size, high head, high-speed hydro-generating sets are increasing, the vibration problem is more prominent, some hydropower plants, timely identification of the cause of the unit vibration is too large for processing, which will undoubtedly increase The reliability of the unit operation. However, some units of hydropower plants, because they did not find out the cause of excessive vibration in time, caused the units to operate under unfavorable conditions for a long time. In addition to strengthening the monitoring in operation, these units should also