State Grid Corporation has implemented the Xiangjiaba - Shanghai ± 800 kV HVDC transmission demonstration project overload operation, the success of the 7.04 million kilowatts of electricity in Sichuan and efficient delivery to Shanghai 2000 km away, setting a single transfusion electrician Cheng World record of delivering power.

The overload operation of the converter station on both sides of the ambient temperature are more than 35 ℃ under the harsh conditions of high temperature, the two ends of the exchange, DC main equipment and systems were rigorously assessed. The successful completion further verified the technical feasibility and equipment reliability of UHVDC transmission and marked a breakthrough made by SGCC in ultra-long-distance and ultra-large-scale transmission technologies, which will significantly enhance the large-scale, large-scale and high-power transmission network Efficiency The optimization of the ability to allocate energy resources is of great and far-reaching significance for the rapid development of clean energy in our country and the scale development of large-scale energy bases, the promotion of large-scale optimal allocation of energy, and the protection of national energy security.

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