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한태희(Tea-hee Han),조용선(Yong-Sun Cho),박형민(Hyoung-Min Park),이나영(Na-Young Lee),남긍현(Goung-Hyun Nam),최효상(Hyo-Sang Choi),임성훈(Sung-Hun Lim),정동철(Dong-Chul Chung) 한국조명·전기설비학회 2006 한국조명·전기설비학회 학술대회논문집 Vol.2006 No.11월
The flux-lock type superconducting fault current limiter (SFCL) can be divided into the subtractive polarity winding and additive polarity winding according to the winding between the coil 1 and coil 2. We investigated quench and recovery characteristics of flux-lock type SFCL The quench time and recovery time for the superconductivity in the subtractive polarity winding became longer that of additive polarity winding under the same conditions. The quench and recovery characteristics of a superconducting element in the flux-lock type SFCL were dependent on winding direction.
2차 권선을 직?병렬연결한 자속구속형 전류제한기의 퀜치특성
박형민(Hyoung-Min Park),조용선(Yong-Sun Cho),최효상(Hyo-Sang Choi),오금곤(Geum-Kon Oh),한태희(Tea-hee Han),임성훈(Sung-Hun Lim),황종선(Jong-Sun Hwang) 한국조명·전기설비학회 2006 한국조명·전기설비학회 학술대회논문집 Vol.2006 No.5월
We investigated the quench characteristics of a flux-lock type superconducting fault current limiter (SFCL) according to the number of the superconducting elements at the subtractive polarity winding of a transformer. The flux-lock type SFCL consists of the transformer with a primary winding and two secondary windings connected in parallel, and the superconducting element was connected with secondary winding in series, respectively. The applied voltage at that time was 200V. when two superconducting elements of the secondary winding was connected in parallel, the peak lie current increased up to 99A, while that flowing in a superconducting element in conventional flux-lock type SFCL showed 50A under the same conditions. the impedance of secondary winding under the same situation showed the opposite behavior. This enabled the parallel structure to be easy to increase the capacity of power system. in the meantime, The quench between two superconducting elements in the SFCL with two secondary windings connected in parallel was achieved simultaneously. While the quench-starting point was slightly different in the SFCL with two superconducting elements connected in series. We found that the parallel connection between the secondary windings increased the power capacity and let quench characteristics improve through their mutual linkage.