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According to the China Three Gorges Project Development Corporation, the No. 26 hydropower unit at the Three Gorges Right Bank Power Station, which is the first 700,000-kilowatt air-cooled hydro-turbine generator in China, has been recognized for its full independent intellectual property rights after passing a rigorous technical review by industry experts. This milestone represents a major breakthrough in domestic power generation technology.
Developed and manufactured independently by Harbin Electric Machinery Co., Ltd., this unit stands out as the largest hydropower generator in the world that employs full air-cooling technology. Unlike traditional water-cooled systems, the stator windings, rotor windings, and iron cores of this unit are all cooled using air, significantly reducing maintenance costs and improving operational efficiency.
Since its official production began on July 10, 2007, the unit has consistently maintained stable temperature and performance levels. The deviation between actual data and design models remains within 5%, demonstrating high precision and reliability. On October 17, 2007, Unit 26 successfully achieved the "Stable First Day" operational target, marking a significant step forward in China's development of advanced air-cooled turbine generator technology.
This achievement not only highlights China’s growing technological capabilities but also sets a new benchmark in the global hydropower industry. With continued innovation and investment, China is steadily advancing toward becoming a leader in clean energy solutions.