China's million-kilowatt generating unit for the Baihetan hydropower project has seen its last core component¹, the water distributor, completed.

 

中国白鹤滩水电站百万千瓦发电机组最后的核心部件水轮机完工。
 

 

The distributor weighed more than 870 tonnes and was developed by Dongfang Electric Machinery² Co., Ltd. in southwest China's Sichuan Province, a leading Chinese electric machinery maker³.

 

As a key part of controlling the direction and volume of water inflow, the distributor has met high technical targets in terms of vertical⁴ gap and end gap of guide vanes and concentricity, the company said.

 

Based on the successful experience of the construction of large hydropower plants such as the Three Gorges⁵ and Xiluodu, Dongfang Electric Machinery has made a series of technological⁶ innovations to improve product performance, reliability⁷ and expected service life.

 

Gate leakage⁸ has been reduced to a tenth of the normal level to avoid significant losses in efficiency. The 0.05-mm concentricity of the installation was also above top-quality standards, the company said.

 

On the Jinsha River, an upper section of the Yangtze, the Baihetan dam is the second largest after the Three Gorges project in central Hubei Province in terms of installed capacity.

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