Alstom delivers first 812 MW runner to Xiangjiaba hydro plant in China

Alstom has successfully delivered the first 812 MW runner – the core component of a hydro turbine - to the site of the Xiangjiaba hydroelectric dam currently under construction in China.
With an output of 812 MW per unit, the Xiangjiaba hydropower project has the largest single unit output of any power plant under construction today – another indication of Alstom’s successful cooperation with China Three Gorges Project Corporation (CTGPC) following the successful delivery of 14 hydro generator units and the governing and computer control systems for the Three Gorges Dam.
The runner is one of the largest in the world, weighing in at 406 tonnes with a diameter of 10.5 metres and a height of 4.7 metres, and is part of the contract won by Alstom in 2008 for the supply of four 812 MW Francis turbine and generator units to the Xiangjiaba dam. The contract also includes training, supervision of installation and commissioning.
Final welding and machining of the runner was carried out at the Three Gorges Site workshop of Tianjin Alstom Hydro Co. Ltd. (TAH) in Yichang, Hubei Province, 1200 km away.
Xiangjiaba is China's third-largest dam after the Three Gorges and Xiluodu dams, also operated by CTGPC. It is the fifth largest dam in the world.

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