[The world's first 500 kV economical high voltage AC current limiter] A few days ago, the world's first 500kV/90kA economical high-voltage AC current limiter developed by China Xidian Group successfully completed the manual short-circuit test and was successfully put into operation on the Shun-Guang-A line of the 500kV Guangnan Station. The successful operation of the project has filled the domestic economical AC ultra-large short-circuit current suppression technology gap, provided an economical and reliable solution for the suppression of high-voltage AC short-circuit current, and provided a strong guarantee for the reliable operation of the ultra-high-voltage large power grid. Editor/Xu Shengpeng

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• 2026.11.04 15:21
• [CRFG Completes Tunnel of Central Yunnan Water Diversion Project]
• The Chengjiang Tunnel in Yuxi section of the Yunnan Central Water Diversion Phase II supporting project, undertaken by China Railway First Group, has been successfully completed. The geological conditions of the tunnel are complex and the construction risk is high. After completion, it can provide water supply to the Chengjiang area every year, help protect the ecological environment of Fuxian Lake, and build a strong regional water safety barrier. Editor/Min Jing

• 2026.11.04 15:19
• [China Railway 14th Bureau Starts Taihu Tunnel of Xiyi S2 Line]
• At the bank of the Taihu Lake Lake in Wuxi, the Xiyi S2 Line, which CR14G participated in, was formally driven through the the Taihu Lake Lake Tunnel. The starting shield Pioneer was equipped with an intelligent model, which posed a serious construction challenge. After the completion of the project, it will contribute to the integration of the Yangtze River Delta and promote the coordinated development of Xiyi. Editor/Min Jing