2025-04-23 08:45:00

　　On April 13, the “Dual-Charging Four-Feeder DC System with Uninterrupted Retrofit Method”, developed by the Yidian Huangnan Model Worker Innovation Studio under State Grid Yichang Power Supply Company, won a bronze medal at the 50th Geneva International Exhibition of Inventions. The innovation outperformed over 1,000 entries from nearly 40 countries and regions.

　　The technology pioneers a “Dual-Charging and Four-Feeder” DC system, addressing a global challenge in upgrading DC systems in power grid substations. At the Geneva fair, Swiss Association of Electrical Engineers experts hailed it as “a paradigm shift in grid modernization.” (Reporter/Sun Xiaoling, Correspondent/Hu Huadong)