자속구속형 고온초전도 사고전류 제한기의 사고제거 후 회복특성

Since the recovery characteristics of superconducting element in the flux-lock type SFCL are dependent on the winding direction of two coils, the analysis for the recovery characteristics of this type SFCL together with the current limiting characteristics is needed to apply it to power system. In this paper, the experiments of the current limiting and the recovery characteristics of the flux-lock type SFCL with YBCO thin film were performed. Through the analysis on the experimental results due to the winding direction of two coils, the recovery time in case of the additive polarity winding was confirmed to be shorter than that in case of the subtractive polarity winding.