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변류기(p-CT)를 적용한 YBCO 초전도 저항형 한류기의 ?치 특성
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취소
  • 변류기(p-CT)를 적용한 YBCO 초전도 저항형 한류기의 ?치 특성
  • Quench Behaviors of Superconducting YBCO film for Fault Current Limiters applying Protective Current Transformer
저자명
박권배,이방욱,강종성,오일성,현옥배
간행물명
Progress in superconductivity
권/호정보
2004년|5권 2호|pp.128-131 (4 pages)
발행정보
한국초전도학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

The resistive superconducting fault current limiters (SFCLs) are very attractive devices for the electric power network. But they have some serious problems when the YBCO thin films were used for the current limiting materials due to the in homogeneities caused by manufacturing process. When the YBCO films have some inhomogeneities, simultaneous quenches are difficult to achieve when the fault current limiting units are connected in series for increasing operating voltage ratings. Magnetic field application is one of the prospective way of inducing simultaneous quenches far the series-connected resistive FCL components. Magnetic field was typically generated by the fault current thorough a coil, which is connected to components of the fault current limiter in series, leaving the problem, which provides significant inductance to the power line and suppresses critical current density of the superconducting components. In this article we investigated the possible application of the protective current transformer (p-CT), which is available current source to the magnetic coil. This system inductively coupled to the circuit, therefore, remarkably reducing impedance to the circuit. The current by the protective current transformer was directly fed to the coil, generating magnetic field large enough to reduce critical current density of the components. This successfully induced simultaneous quenches of the series-connected resistive FCL components.