byAnonymous Executive editor: Zhou Changqun
fromState Key Laboratory of Dielectric Engineering
Translated by:Liu Xiuming Edited by:Zhen Yanhua
Time: 2017-04-22 10:01:30 Click: 1,235
Professor Zhao Hong, the director of cultivation base of State Key Laboratory of Dielectric Engineering in HUST, presided over the development and research 200kV nanocomposite XLPE insulated high voltage DC cable and achieved initial results. Recently, the 200kV nano-composite insulated crosslinked polyethylene DC high-voltage cables and cable terminals finally passed the test of National Wire and Cable Quality Inspection Center in Yixing, Jiangsu, the process of which lasted more than 30 days and they made many type tests, which confirmed that the home-grown cable materials and cable samples is of technological feasibility in industrialization. And it is another encouraging process of China’s DC cable materials research and industrialization.
Professor Han Baozhong, Professor Wang Xuan, Dr. Yang Jiaming, Dr. Zheng Changji, Dr. Song Shuwei, PhD student Yan Zhiyu, and PhD student Chen Junqi of our school, together with Chen Peiyun, Chairman of Qingdao Hanlan Cable Cable Company, Zhang Tao, Manager of Qingdao Hanlan Cable Cable Company and Wu Chunling, the general engineer of Guangdong Jixian Cable Accessories Factory took part in the research work of cable materials, cable body, cable accessories. The research work is also one of the research tasks of the key projects of the National Natural Science Foundation "cross-linked polyethylene insulation materials DC electrical control mechanism research" which is presided over by Professor Han Baozhong. The research work of this project based on domestic resources, the cable insulation nanocomposite materials are made by domestic polyethylene resin, cable semi-conductive shielding material is also made of domestic materials, reducing the dependence on foreign resources; the cable system used silicone rubber cable terminals in the collaboration of optimized insulation conductivity with. China has a wealth manufacturing capacity of silicone rubber cable terminal, but compared to ethylene-propylene rubber insulation terminal, there are more technical challenge in manufacturing of DC high-voltage cable terminal with silicone rubber materials; The dielectric strength test after the type tests demonstrate that the cable system has a higher safety margin and the expected cable material will manufacture higher voltage rating cables.
In 2016, the global energy Internet serves as a national strategy. DC cable research and industrialization is of high-profile as the most effective carrier of long-distance transoceanic transmission, and high-voltage DC cable material has become a key technology. British professor J. Lweis first proposed the concept of nano-dielectrics in 2004, thus bursting out an international upsurge of nano-dielectric research, but the nanodielectric materials is still not applicable in engineering. Subsidized by the National Natural Science Foundation and the key projects of National Natural Science Foundation, the team has made unremitting efforts with the leadership of Professor Zhao Hong in the continuously exploration of the nanocomposites to suppress space charge and the improvement of the conductance and electric strength mechanism. They had published 10-odd papers in the international journals registered by the SCI and domestic A-class periodicals, which laid a solid theoretical foundation for the industrialization of DC cable material. Following the vital role of Zhao Hong research team playing in the industrialization of 110kV AC high voltage cable material in Qingdao Hanlan cable company, the 200kV cable’s industrialization as DC high-voltage cable materials after passing the type tests is another major contribution our school has made in China’s cable manufacturing industry.
