[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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• 2026.06.15 09:32
• [25.7 billion yuan project landing at the 10th South China International Fair]
• On the afternoon of June 13, 2026, the signing ceremony for key projects of the Green Energy Pavilion at the 10th China South Asia Expo was held in Kunming. The theme of the event is to build an energy corridor and share green new energy. 18 projects were signed on site, with a total amount exceeding 25.7 billion yuan. The highlights of this signing are diverse, with new breakthroughs in cross-border energy cooperation and China's first green certificate cooperation with overseas partners; Multiple pumped storage and headquarters economic projects have been implemented to solidify the investment foundation; A large number of wind power and photovoltaic projects have landed in rural areas of counties, helping to promote rural revitalization. This signing will promote the construction of the South Asia Southeast Asia Energy Corridor, deepen cross-border energy cooperation, and help Yunnan build a strong green energy province.Editor/Gong Ziwei

• 2026.06.15 09:25
• [China's first batch of offshore flexible intelligent welding robots put into use]
• Recently, the first batch of independently developed flexible manufacturing intelligent welding robot equipment systems for marine engineering in China were put into use in Tianjin, providing equipment support for the cultivation of new quality productivity in the field of marine energy. This equipment system is specially developed for high difficulty and customized heavy welding scenarios such as offshore oil and gas platform module nodes, deepwater pipeline frame reinforcement rings, and crush rings. It has a design life of 20 years and a maximum bearing capacity of 30 tons. The core software and process library have achieved 100% localization.Editor/Gong Ziwei