[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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• 2026.06.17 17:52
• [Over 50000 kilometers of 220 kV and above transmission lines in Xinjiang]
• As of the end of May 2026, the total length of 220 kV and above transmission lines in Xinjiang power grid has exceeded 50000 kilometers, forming a backbone network of ultra-high voltage AC/DC hybrid connection and coordinated internal supply and external transmission. Xinjiang Power Grid has built 39 750 kV substations with a total length of 14800 kilometers, 1113.92 kilometers of 800 kV and above ultra-high voltage transmission lines, and 182 220 kV substations, forming a modern power supply network that promotes mutual assistance between the north and south, east-west communication, safety and reliability, and flexible allocation.Editor/Gong Ziwei

• 2026.06.17 17:45
• [China's domestically produced high-end carbon fiber achieves mass production]
• The Wuhan Institute of Technology laboratory has successfully produced tens of thousands of meters of large fiber bundles of carbon fibers, and China has achieved mass production of T1000 and above high-performance carbon fibers. This material has extremely high strength and has long been blocked by foreign technology. Zhongfu Shenying is the world's first enterprise to achieve mass production of 100 tons of T1200 grade carbon fiber, and China has completed decades of industrialization process abroad in a short period of time. The breakthrough in high-performance carbon fiber is not only a significant achievement in the field of new materials, but will also reshape the trillion dollar global supply chain.Editor/Gong Ziwei