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Corona phenomenon of Ultra High Voltage DC in high altitude region is more serious, and corresponding electromagnetic environment is more severe as well. Radio Interference is the most important consideration during the design and operation. Characteristics of RI and its influence factors were studied based on an UHVDC test line with an altitude of 2100 m in the National Engineering Laboratory for...
This paper introduced the lightning protection design of the first 1000-kV UHV transmission line in China. The analysis is based on the lightning leader propagation model by considering the lightning propagation process, which can consider the randomness of lightning process. The new phenomenon of middle-phase shielding failure was explained when two grounding wires are wide, and the side-phase shielding...
The Ultra High Voltage DC power transmission technique is developed quickly in China but used barely in the world. Corona phenomenon in high altitude region is more serious, and corresponding electromagnetic environment is more severe as well. A UHVDC test lines are completed for tests in Kunming, China, with an altitude of 2100 m. An automotive electromagnetic environment testing system was installed...
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