Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Performance Test of Cooling System for the KEPCO HTS Power Cable

한전 초전도전력케이블 냉각시스템 성능시험

  • 양형석 (한국기초과학지원연구원 연구장비개발부) ;
  • 김동락 (한국기초과학지원연구원 연구장비개발부) ;
  • 손송호 (한국전력연구원 전략기술연구소) ;
  • 임지현 (한국전력연구원 전략기술연구소) ;
  • 최하옥 (한국기초과학지원연구원 연구장비개발부) ;
  • 이병섭 (한국기초과학지원연구원 연구장비개발부) ;
  • 최연석 (한국기초과학지원연구원 연구장비개발부) ;
  • 류희석 (한국전기연구원) ;
  • 황시돌 (한국전력연구원 전략기술연구소)
  • Published : 2007.05.30
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Abstract

As a power transmission line supplying power to a densely populated city, the high temperature superconducting (HTS) cable is expected to one of the most effective cables with a compact size because of its high current density. The verification of HTS power cable system have been progressed by KEPRI. A cooling system for a 3-phase 100m HTS power cable with 22.9kV/1.25kA was installed and tested at KEPCO's Gochang power testing center in Korea. The system consists of a liquid nitrogen decompression cooling system with a cooling capacity of 3kW and a closed circulation system of subcooled liquid nitrogen. Several performance tests of the cable system with respect to the cooling such as cooling capacity, heat load and temperature stability, were performed at several temperatures. Thermal cycle test, cool-down to liquid nitrogen temperature and warm-up to room temperature, was also performed to investigate thermal cycle influences. The outline of the installed cooling system and performance test results are presented in this paper.

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