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Siemens Energy will install 22 units of distribution transformers at China’s first commercial 66 kilovolts (kV) offshore wind farm, Yuhuan Offshore Wind Power Project Phase 1, located in Taizhou, Zhejiang Province, southeastern China. The fluid immersed transformers of type FITformer WIND will support China Huadian Corporation (CHD) to optimize energy supply in the Yangtze River Delta region. The wind farm has an installed capacity of 300 MW.
Growing demand for wind energy has led to the development of increasingly stronger wind turbines which produce 10 megawatts and beyond, requiring higher voltage levels and innovative power transmission technologies. The FITformer WIND transformer was developed to enable these larger power capacities with a voltage class of up to 72.5 kV. The compact and lightweight transformers for Phase 1 of the Yuhuan Offshore Wind Power Project will be installed in the tower base of the wind turbines. With strong corrosion resistance FITformer WIND transformers are fully suitable for the hostile conditions of marine environment operation guaranteeing high reliability and low maintenance requirements. In addition, the highly efficient transformers are filled with biodegradable synthetic ester insulating oil instead of conventional mineral oil, which is particularly environmentally friendly and fire safe.
The first phase of the Yuhuan Offshore Wind Power Project is scheduled to be completed by the end of 2021 and will effectively optimize energy supply in the Yangtze River delta. After commissioning the project is forecast to result in a reduction of 584,000 tons of carbon dioxide (CO2) emissions per year, which is more than 12,600 passenger cars emit in one year.