Kaplan Type Turbine

The Kaplan type turbine is mostly suitable for hydropower stations with medium or high head. The Kaplan type turbines manufactured by the CWTW can be divided into fixed blade and rotating blade according to its structure. The fixed blade type is mainly used for small hydropower plant with medium and small capacity, small variation in load. While rotating blade type is mainly used for hydropower plant with medium and big capacity, big variation in load.

The Pelton type turbines manufactured by CWTW are ranging from 3 to 65m in water head, 0.2 to 100MW in capacity and 1 to 7m in runner diameter. The technology for Kaplan type unit has improved a lot during recent years, after provided the type ZZ560a－LH－410, 10000KW unit for Wenfengtai hydropower plant in Sichuan province, CWTW has provided many rotating blade Kaplan type unit, such as ZZ500－LH－640, 45000KW unit for Huaneng Dongxiguan hydropower plant in Sichuan province, ZZ560a－LH－500, 25000KW unit for Caoyutan hydropower plant in Sichuan province and  ZZ560a－LH－500, 25000KW unit for Huaneng Yucheng hydropower plant in Sichuan province.