September 4, independently designed by the China Western Electric International's first self-made 1000kV1000MVA double column structure, single column capacity of 500MVA autotransformer UHV passed all routine tests and type tests, breaking the international UHV transformer single column The world record of the maximum capacity of 334 MVA marks a significant progress in the technological innovation of UHV AC project construction in China.

The product is designed and researched by Xidian Transformer Co., Ltd., a subsidiary of China Xidian Electric Co., Ltd., and manufactured by Changzhou Xidian Transformer Co., Ltd.. The leader of the UHV Construction Department of the State Grid Corporation of China and the China Electric Power Research Institute and the State Grid Electric Power Research Institute have identified such experts in the industry. All tests. The test results show that the product's performance indicators meet and exceed the national standards and technical specifications, and the insulation tolerance and the key indicators such as partial discharge, temperature rise and noise all reach the international leading level, and are more than the same amount of three-column UHV. The transformer has made new progress and achieved the goal of upgrading the domestic power transmission and transformation manufacturing technology to an internationally advanced level through UHV construction, laying a good foundation for the further development of a 1000kV 1500MVA three-column giant UHV transformer.