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Changji-Guquan ±1100kV UHV DC Power Transmission Line Project

The project is currently the largest UHV DC power transmission line project with the highest voltage level, maximum transmission capacity and longest transmission distance around the world. The total distance is 3,300km and 1/8" split wire with sectional area of 1,250mm2 and transmission capacity of 12,000MVA is adopted. The transmission line project starts from Converter Substation in Changji, Xinjiang and terminates at Guquan in Anhui Province. The project development is of great significance to the prevention and control of air pollution, the regional economic development and the Belt and Road Initiative.