[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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• 2026.06.02 14:16
• [Self propelled boundary river emergency rescue floating crane project]
• The China Russia border river emergency rescue floating crane project of Heilongjiang Provincial Water Traffic Rescue Center has started construction, with the addition of a 300 ton self-propelled floating crane and supporting work vessels, making it the largest self-propelled and fully revolving lifting vessel in the field of inland river rescue in the three provinces and one region of Northeast China. The ship integrates cutting-edge technologies such as full electric propulsion, intelligent search, and 300 ton lifting, filling the gap in modern salvage of large-scale accidents in the Jiehe River basin and building a fully chain intelligent salvage system. Editor/Cheng Liting

• 2026.06.02 14:15
• [The construction of the northern section of Phase I of Beijing Metro R4 Line has started]
• On June 2, 2026, the mobilization and deployment meeting for the construction of the northern section of the first phase of Beijing Metro R4 Line was held, marking the official entry of this high-capacity and fast backbone line located in the northeast direction of the capital into the construction phase. As a major landmark project for implementing the 15th Five Year Plan in Beijing, the northern section of Phase I of R4 Line is 20.78 kilometers long, starting from Dongba in Chaoyang District in the south and ending at Yanjing Bridge in Shunyi District in the north, connecting Chaoyang, Tongzhou, and Shunyi districts. Editor/Cheng Liting