Unit 1 Of Zhejiang Tiantai Pumped Storage Power Station Was Successfully Hoisted, Breaking A New Domestic Technological Record

Recently, the stator of Unit 1 of Zhejiang Tiantai Pumped Storage Power Station (referred to as "Tiantai Pumped Storage Power Station") was accurately lifted into Unit 1 pit. The stator is one of the core components of a generator motor. The outer diameter of the stator of Unit 1 is about 8.1 meters, the height is about 6.4 meters, and the overall lifting weight is 482.7 tons. Its smooth lifting marks a new progress in the installation of China's largest single unit capacity pumped storage unit.

The Tiantai Pumped Storage Power Station is located in Tiantai County, Zhejiang Province and is a key implementation project of the national "14th Five Year Plan". The total installed capacity of the power station is 1700 megawatts, with four reversible hydroelectric generators installed with a single capacity of 425 megawatts, making it the largest single capacity pumped storage power station in China.

After testing, the data of the overall withstand voltage test of our Unit 1 stator is better than the national standard and the Three Gorges Group enterprise standard, "said Ma Zhizhong, Deputy Director of the Engineering Management Department of Zhejiang Tiantai Pumped Storage Co., Ltd.

The Tiantai Pumped Storage Power Station aims to create a high-quality project, creating multiple "world firsts" and "domestic firsts" such as the largest single unit capacity pumped storage power station in China, the highest rated head under construction pumped storage power station, the longest single-stage inclined shaft under construction pumped storage power station, and the first research and application of 1000 megapascal hydropower steel in China. It showcases new achievements in China's energy green transformation and high-end equipment manufacturing, and refreshes the new heights of global pumped storage technology.

According to the construction plan, the first unit of the Tiantai Pumped Storage Power Station will be put into operation and generate electricity by the end of this year. After the completion of all power stations, it is expected to provide 1.7 billion kilowatt hours of peak electricity annually. Together with the Three Gorges Group Zhejiang Changlongshan Pumped Storage Power Station, it will play an important role in peak shaving, valley filling, frequency regulation, phase modulation, energy storage, and undertake tasks such as emergency backup in the Zhejiang power grid.