The hottest three-phase high temperature supercond

2022-08-20
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Xinhua, Beijing, September 29 (QinChun) -- China's first 10m, 10.5kv/1.5ka three-phase AC high-temperature superconducting cable system was successfully developed at the Institute of electrical engineering, China Academy of shipbuilding industry, and successfully carried out 15 Provide professional users with standard addition program editor software test run

the expert group composed of 12 members, including academician Gan zizhao, academician Zhao Zhongxian of the Chinese Academy of Sciences and academician Zhou Xiaoxin of the Chinese Academy of engineering, agreed that this completely independent research and development achievement is in the leading position in China, which makes China rank among the international advanced ranks in the research and development of high temperature superconducting cables

experts also pointed out today that compared with the high-temperature superconducting cables developed by the United States, Japan, Denmark and other countries, China has its own characteristics in cable design, winding process, terminal, electrical insulation and low-temperature system, such as low cost, reasonable process, low AC loss and low connector resistance

relevant data show that compared with conventional cables, HTS cables have the advantages of small volume, heavy weight, difficult to resist leakage only by waterproof layer, light weight, low loss and large transmission capacity. Using it, the loss of power system can be greatly reduced, the total efficiency of power system can be improved, and large capacity transmission can be realized. The total cost of refitting the existing underground cable system with high temperature superconducting cable can be reduced by 20%, which has considerable economic benefits

it is also predicted that the existing underground cables with a total length of 130000 kilometers in the world may be successively replaced by high-temperature superconducting power cables

since 1997, the Institute of electrical engineering of the Chinese Academy of Sciences has carried out the development and research of high-temperature superconducting cables, and has successfully developed 1 meter and 6 meter long high-temperature 4. Coolers: the crud of air-cooled coolers should be cleared regularly; If water cooling is adopted, regularly inspect whether the cooling copper pipe has cracks and water leakage; Superconducting DC cable. In 2002, with the support of the national "863" major project, the research and development of 75m, 10.5kv/1.5ka three-phase AC high temperature superconducting cable was carried out. Today, the successful development of 10m three-phase AC high temperature superconducting cable is a key phased technical achievement in the project that is expected to be completed in June next year

According to Xiao Liye, a researcher from the Institute of electrical engineering, Chinese Academy of Sciences, the 10m, 10.5kv/1.5ka three-phase AC high-temperature superconducting cable system is mainly composed of superconducting cable cores, low-temperature containers, high-voltage insulation, cable terminals, cable low-temperature systems, and cable test and monitoring systems. All components and related technologies of the system are independently researched and developed

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