The first 220kV flexible low-frequency transmission project of China was put into operation in Hangzhou recently. This is the flexible low-frequency transmission project with the highest voltage level and the largest transmission capacity in China, achieving the interconnection between two major load centers in Fuyang and Xiaoshan (Hangzhou), able to provide the 300,000kV flexible electric energy support for areas where the main venues of Hangzhou Asian Games are located, so as to meet the peak electricity demands during the event.

The low-frequency transmission project has filled the technical gap in the equipment research & development, startup and debugging of the world flexible low-frequency transmission & transformation field, highlighting China’s advanced autonomous core technology of flexible low-frequency transmission.