Tiechanghe HHP

The original turbine runner model of Tie Changhe hydropower plant is A870, very serious cavitations were happened at the bucket opening area to affect the runner service life badly. Getai provided a new design as CJA475B-L-165/2x10.5 which has good performance on energy intensity and anti-cavitations, it has a higher efficiency either to reach the capacity more easy. According to the plant hydraulic parameters, the new designed runner working in the optimum range with high efficiency no matter under the operation of single or double nozzles.