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YBCO 박막을 이용한 배전급 저항형 초전도 한류기
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  • YBCO 박막을 이용한 배전급 저항형 초전도 한류기
  • Resistive Superconducting Fault Current Limiters for Distribution systems using YBCO thin films
저자명
이방욱,박권배,강종성,김호민,오일성,심정욱,현옥배,Lee. B.W.,Park. K.B.,Kang. J.S.,Kim. H.M.,Oh. I.S.,Shim. J.W.,Hyun. O.B.
간행물명
Progress in superconductivity
권/호정보
2006년|7권 2호|pp.114-119 (6 pages)
발행정보
한국초전도학회
파일정보
정기간행물|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

High critical current density, high n value, multiple faults endurances, and fast recovery characteristics of YBCO thin films are very attractive characteristics for developing resistive type superconducting fault current limiters. But due to the limited current and voltage ratings of one YBCO module, it is needed to construct series and parallel module connections for high capacity electric networks. Especially for distribution network, more than 30 units should be connected in series to meet voltage level. So in order to construct distribution-level superconducting fault current limiter, simultaneous quench in one YBCO thin films should be realized, and furthermore, quench should be occurred in all fault current limiting units equally to avoid local heating and failures. In this paper, we proposed optimum design of YBCO thin films for fault current limiting module and technical method using shunt resistor to achieve simultaneous quench between multi current limiting units. From the analytical and the experimental results, optimal current path and thickness of shunt material was determined for YBCO thin films and shunt resistor between modules was developed. Finally, 14 kV one phase resistive fault current limiter using multi YBCO thin films was constructed and it was possible to get satisfactory test results.