首页|Operational characteristics of hybrid-type SFCL with closed and open cores
Operational characteristics of hybrid-type SFCL with closed and open cores
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We investigated the operational characteristics of the hybrid-type superconducting fault current limiter (SFCL) with the closed and the open cores, which induced the variation of the magnetic flux between the primary and the secondary windings. The experimental setup of the hybrid-type SFCL with the closed and the open cores were prepared and the experimental analyses for the current limiting characteristics were performed. The peak value of the fault current in the hybrid-type SFCL with the open core was higher than that of the closed core at the first cycle after fault occurrence. However, in the case of the hybrid-type SFCL with the open core, the limiting current level after fault occurrence was decreased less than that of the hybrid-type SFCL with the closed core, because the magnetic leakage reluctance of the open core was higher than that of the closed core. The quench time (T-q) and the arrival time (T-a) for the peak voltage (V-SC) in the hybrid-type SFCL with the closed core were faster than that of the hybrid-type SFCL with the open core due to the increase of the mutual flux. We verified that the consumption power in the hybrid-type SFCL with the open core was larger owing to the increase of leakage flux by the reduction of mutual inductance between primary and secondary windings. (C) 2007 Elsevier B.V. All rights reserved.
hybrid-type superconducting fault current limiterthe closed and the open coresFAULT CURRENT LIMITERFILMS
Cho YS、Lee NY、Choi HS、Chung DC、Lim SH
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Chosun Univ, Dept Elect Engn, Kwangju 501759, South Korea
Woosuk Univ, Dept Elect Engn, Jeonbuk 565701, South Korea
Soongsil Univ, Dept Elect Engn, Seoul 156743, South Korea
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