With consideration of the special hydrogeological conditions and layout characteristics of the hydraulic structures, the seepage control measures of dam abutment and underground powerhouse on the right bank of JinPing...With consideration of the special hydrogeological conditions and layout characteristics of the hydraulic structures, the seepage control measures of dam abutment and underground powerhouse on the right bank of JinPing-I hydropower station is drawn up. Based on the three dimensional finite element analysis of seepage control with dry area virtual flow constant mesh analysis method, the rationality of the seepage control measures of dam abutment and underground powerhouse has been verified and the key factors affecting the effect of seepage have been compared. In combination with the curtain of dam abutment, the curtain of underground powerhouse is reasonable. The results showed that the steel liner of penstock after the curtain is necessary.展开更多
ATS48系列ATS48C21Q软启动器启动110 k W交流异步电机在我国工业现场的使用十分广泛,其良好的性能使电机控制避免机械损伤和水锤,并提供完善的电机和机械保护,该装置的正常工作对安全稳定运行至关重要。文中通过对该软启动器的分析,结...ATS48系列ATS48C21Q软启动器启动110 k W交流异步电机在我国工业现场的使用十分广泛,其良好的性能使电机控制避免机械损伤和水锤,并提供完善的电机和机械保护,该装置的正常工作对安全稳定运行至关重要。文中通过对该软启动器的分析,结合其在糯扎渡水电站筒阀油压装置系统使用过程中出现的故障,提出了在使用该软启动器的优化方法,提高了水轮发电机安全稳定运行系数。展开更多
文摘With consideration of the special hydrogeological conditions and layout characteristics of the hydraulic structures, the seepage control measures of dam abutment and underground powerhouse on the right bank of JinPing-I hydropower station is drawn up. Based on the three dimensional finite element analysis of seepage control with dry area virtual flow constant mesh analysis method, the rationality of the seepage control measures of dam abutment and underground powerhouse has been verified and the key factors affecting the effect of seepage have been compared. In combination with the curtain of dam abutment, the curtain of underground powerhouse is reasonable. The results showed that the steel liner of penstock after the curtain is necessary.
文摘ATS48系列ATS48C21Q软启动器启动110 k W交流异步电机在我国工业现场的使用十分广泛,其良好的性能使电机控制避免机械损伤和水锤,并提供完善的电机和机械保护,该装置的正常工作对安全稳定运行至关重要。文中通过对该软启动器的分析,结合其在糯扎渡水电站筒阀油压装置系统使用过程中出现的故障,提出了在使用该软启动器的优化方法,提高了水轮发电机安全稳定运行系数。