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Insulation design of ±10kV bipolar coaxial HTS DC cable
Author(s) -
Lei Hu,
Shaotao Dai,
Ying Xu,
Yuan Cai,
Tao Ma,
Teng Zhang,
Bangzhu Wang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/768/6/062098
Subject(s) - coaxial , coaxial cable , electrical engineering , power transmission , electric power transmission , power cable , materials science , voltage , power (physics) , engineering , composite material , physics , layer (electronics) , quantum mechanics , cable gland
The high-temperature superconducting cable has low loss and high current-carrying density, and has extensive research prospects in power system transmission. In recent years, the advantages of DC transmission over long distances have become more and more obvious, and superconducting DC transmission has also become a research hotspot. Bipolar coaxial DC cable has a good economy, compact structure, and greater transmission power density, but also requires higher insulation, so the insulation design is particularly important. In this paper, a 10 kV / 6000 A / 10 m bipolar coaxial superconducting DC cable with a cold insulation structure is considered. In consideration of DC withstand voltage and lightning shock, an insulation design is carried out and a type test is performed. The test results meet the cable insulation requirements.

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