[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
On August 25, 2026, the world’s largest-diameter underwater shield tunnel, the Jinan Huanggang Road Yellow River Tunnel constructed by CR14G, was officially opened to traffic. Adopting a single-tube double-deck structure and overcoming multiple world-class technical challenges, the tunnel cuts the cross-river travel time from 40 minutes to merely five minutes.Editor/Min Jing
Recently, Jingtang Port in Tangshan launched its first open-top container freight train transporting Indonesian coking coal from Jingtang Port to Xiaonan, adding a new cargo type to its freight business. Targeting the coal demand of enterprises in Shanxi, the port has standardized operation procedures and strictly implemented environmental protection requirements, successfully opening up a new railway transportation channel for imported coking coal.Editor/Min Jing