一、概述水轮发电机组是由许多机件组成的。这许多机件中只要有一个或几个制造或安装得不好,在运行时就要产生振动。如果振动的振幅过大,就可以破坏各部分的紧固性,从而导致机组中心位移,造成破坏性的不良后果。若振动值超过“水电站成套设备起动试验程序(试行)”规定的数值(表1),就应查明产生振动的 First, an overview Hydrogenerator is composed of many parts. As many as one or a few of these parts are not manufactured or installed properly, vibration is generated during operation. If the vibration amplitude is too large, you can destroy the various parts of the tightness, resulting in displacement of the center of the unit, causing destructive adverse consequences. If the vibration value exceeds the value specified in the Start-up Test Procedures for Complete Plants of Hydropower Station (Trial) (Table 1), it shall be ascertained that the vibration