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http://dx.doi.org/10.4313/JKEM.2003.16.10.946

The Dielectric loss Properties of Mini-model Superconducting Cable  

김영석 (경상대학교 전기공학과 및 공학연구원)
곽동순 (경상대학교 전기공학과 및 공학연구원)
한철수 (경상대학교 전기공학과 및 공학연구원)
김해종 (한국전기연구원 초전도 응용그룹)
김동욱 (LG 전선 전력연구소)
김상현 (경상대학교 전기공학과 및 공학연구원)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.16, no.10, 2003 , pp. 946-951 More about this Journal
Abstract
A high-Tc superconducting cable(HTS cable) is expected as an underground power line supplying the electrical power the densely populated city in future. The electrical insulation is very important for develop HTS cable system because it is operated a high voltage and in cryogenic temperature. We manufactured a mini-model cable and measured a tan$\delta$ of cable using schering bridge. The tan$\delta$ of PPLP was lower than that of Tyvek and Kraft at a given temperature, the tan$\delta$ of PPLP was 1.16${\times}$10-3. According to the increase of electric stress the tan$\delta$ increased because partial discharge occurred inside butt gap of mini-model cable. However, the tan$\delta$ decreased by increase of liquid nitrogen pressure. This reason is thought by decrease of part discharge between butt gap by increase of liquid nitrogen pressure.
Keywords
HTS cable; Dielectric loss; PPLP;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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