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논문 기본 정보

자료유형
학술대회자료
저자정보
저널정보
대한전기학회 대한전기학회 학술대회 논문집 대한전기학회 전문대학교육위원회 2006년도 학술대회 논문집
발행연도
2006.10
수록면
208 - 211 (4page)

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We have analyzed operating characteristics of hybrid-type superconducting fault current limiter (SFCL) according to the parallel connection of secondary windings with YBa₂Cu₃O? (YBCO) films. The tum ratio between the primary and secondary windings of each reactor was 63:21. Hybrid-type SFCL using a transformer with parallel reactors could reduce the unbalanced quench caused by differences of the critical current density between YBCO films. We found that hybrid-type SFCL having parallel connection induced simultaneous quench between the superconducting elements. The quench-starting point at this time was almost same. When the applied voltage was 200V, the limiting current in the hybrid-type SFCL with a serial connection was lowered to 34 percent than that in the SFCL with a parallel connection. In the meantime, when the voltage generated in the superconducting elements was the same, the current value in the parallel connection was 60 percent less than in the serial connection. The voltage generated In the primary winding also showed the similar behavior. In conclusion, we found that the fault current was limited more effectively in the SFCL with the serial connection but the power burden of the superconducting elements was reduced in the parallel connection.

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UCI(KEPA) : I410-ECN-0101-2010-560-001951668