Hitachi Energy will supply the transformers and high-voltage hybrid switchgear to China’s 280MW Tuci offshore wind power project.
These solutions will enable the wind farm to operate steadily and reliably at 66kV voltage level.
Tuci, developed by China General Nuclear Power Corporation (CGN), is located in the sea area off the north-east coast of Xiangshan, Ningbo city in Zhejiang province.
The project will have 35 wind turbines, each with an 8MW capacity and transmit power to shore with a 66kV submarine cable connected to the onshore booster station which will integrate renewable energy into the grid.
To ensure the high capacity and reliability, the 66kV WindSTAR power transformers and 72.5kV high-voltage hybrid switchgear systems, PASS M00-Wind, will be installed in each turbine.
The products form part of Hitachi Energy’s OceaniQTM portfolio for offshore applications.
The solutions will help achieve longer transmission distances, reduce losses, and enable the cost-effective operation of the offshore wind farm, said the company.
The products are specially designed to fit inside the narrow space of a wind turbine and can withstand strong vibrations, sudden movements, corrosion, and salt mists.
WindSTAR transformers are eco-efficient and fire safe by using biodegradable ester fluids as an insulation liquid.


