Xiangjiaba Dam Xiangjiaba Dam The Xiangjiaba Dam () is a large gravity dam on the Jinsha River, a tributary of the Yangtze River in Yunnan Province and Sichuan Province, southwest China. The facility has eight Francis turbines, four with a capacity of 812 MW and four rated at , totalling an installed capacity of . Xiangjiaba Dam is China's third-biggest hydropower station following Three Gorges Dam and Xiluodu Dam. Construction started on November 26, 2006, and its first generator was commissioned in October 2012. The last generator was commissioned on July 9, 2014. The output of the generating station is connected to
Three Gorges Dam tonnes each and are designed to produce more than 700 MW of power. The designed head of the generator is . The flow rate varies between depending on the head available. The greater the head, the less water needed to reach full power. Three Gorges uses Francis turbines. Turbine diameter is 9.7/10.4 m (VGS design/Alstom's design) and rotation speed is 75 revolutions per minute. This means that in order to generate power at 50Hz, the generator rotors have 80 poles. Rated power is 778 MVA, with a maximum of 840 MVA and a power factor of 0.9. The generator produces