The design ofhydraulicturbine generator set of Xizhong hydropower plant was not rational, existed the problems of the lower hydraulicturbineefficiency and the serious cavitation erosion.
西中电厂水轮发电机组设计不合理，存在水轮机效率与出力低，汽蚀严重等问题。
2
Practice proved that the nc machining ofhydraulicturbine blades features high machining efficiency and high accuracy, and dramatically improves the machining quality of turbine wheels.
实践证明，水轮机叶片数控加工工艺方法具有加工效率高、精度高等优越性，使转轮加工质量大幅度提高。
3
It is highly important to the efficiency guide line of the whole hydraulic equipment unit and to the unit runs safety and steadily that the wicket gate end clearance of the hydraulic turbine.