某发电厂的一台瑞士EW型汽轮发电机,容量为1500瓩,汽轮机转速为7886转/分,发电机转速为3000转/分,用减速齿轮传动。这台汽轮机由于调速系统不良,在运行中经常发生失去调整作用的现象。在汽轮机单独带负荷运行中,当外界负荷增大时,汽轮机的转速降低很大,而当外界负荷减小时,汽输机的转速上升很快。在汽轮机并列运行时,外界负荷的增 A Swiss EW turbine generator at a power plant with a capacity of 1500 瓩, a turbine speed of 7886 rpm, a generator speed of 3000 rpm, and a reduction gear drive. This steam turbine due to poor speed control system, often in the operation of the phenomenon of loss of adjustment. In a single-load operation of the steam turbine, when the external load increases, the speed of the steam turbine decreases greatly, and when the external load decreases, the speed of the steam turbine increases rapidly. Turbine parallel operation, the external load increase