Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference (한국초전도저온공학회:학술대회논문집)
- 2002.02a
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- Pages.365-367
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- 2002
Quench Behaviors of Superconducting YBCO Films for Fault Current Limiter Using Magnetic Fields
자기장이 인가된 YBCO 박막형 한류기의 ?치 특성
Abstract
A serious problem in using YBCO films for fault current limiter is inhomogeneities caused by imperpect manufacturing. So simultaneous quenches are a difficult problem which elements for current limiting are connected in series for increasing voltage ratings. We investigated extended electric field - current characteristics for current limiting element of YBCO film when 0-130mT magnetic field is applied. And quench characteristics were investigated in over all element and between elements of YBCO films. From the experiments, it was shown that applied magnetic fields using solenoid coil induced uniform quench distribution for over all stripes and simultaneous quench in all elements for current limiting of YBCO film was realized.
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