Abstract:In order to improve the automation of puding hydropower station,to provide a more reliable means for the safety, efficiency, and economic function of the generating set, and also to create the first class water power plant (station) automation conditions for implementing "remote control, unattended or undermanned" and "lean operation",at the time of the expansion of the unit, the GER—9000 model ultrasonic flow measurement system was installed in the pressure tube of the butterfly valve of the three units.By applying the measuring system and analyzing its measuring precision, it meets the production requirement completely, and the effect is good.And the problem that puding hydropower station has not been able to directly measure the runoff has been successfully solved.It also provides reliable flow data for the hydraulic department.It is of great significance to improve the safety, high efficiency, economic operation level of puding hydropower station, to the realization of "remote control, unattended or undermanned" and the "lean operation" target of the whole plant (station), which provides practical experience for the promotion and application of hydropower industry.The current system is worth popularizing in other hydropower (station) because it is helpful to improve the automation level and realize high quality and efficient operation.