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Electrical Insulation Design and Experimental Results of a High-Tc Superconducting Cable  

Kwag, Dong-Soon (경상대 공대 전기공학과)
Cheon, Cheon-Gweon (경상대 공대 전기공학과)
Choi, Jae-Hyeong (경상대 공대 전기공학과)
Kim, Hae-Jong (한국전기연구원 초전도응용연구그룹)
Cho, Jeon-Wook (한국전기연구원 초전도응용연구그룹)
Kim, Sang-Hyun (경상대 공대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.55, no.12, 2006 , pp. 640-645 More about this Journal
Abstract
A 22.9kV/50MVA class high temperature superconducting(HTS) power cable system was developed in Korea. For the optimization of electrical insulation design for a HTS cable, it is necessary to investigate the ac breakdown impulse breakdown and partial discharge inception stress of the liquid nitrogen/laminated polypropylene paper(LPP) composite insulation system. They were used to insulation design of the model cable for a 22.9kV class HTS power cable and the model cable was manufactured. The insulation test of the manufactured model cable was evaluated in various conditions and was satisfied standard technical specification in Korea. Base on these experimental data, the single and 3 phase HTS cable of a prototype were manufactured and verified.
Keywords
High-Tc Superconducting Cable; Insulation Design; Conversion Coefficient; Cryogenics;
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