ZJN-1100 valve hall grounding switch
ZJN-1100 UHV valve hall grounding switch is developed by relying on the only DC million project in the world at present. It innovatively changes the conventional vertical straight wheel structure to the horizontal folded plug-in structure, with the fracture distance of more than 15m. It is the grounding switch equipment with the longest horizontal fracture distance in the world at present. The successful development of the product fills the gap at home and abroad, has obtained the national invention patent, and has been put into operation in September 2019 in the Changji-Guquan ± 1100kV UHV DC transmission project, which is the world's highest voltage level and the most advanced technology.
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