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온민귀(Min-Gwi On),김명후(Myoung-Hoo Kim),김진석(Jin-Seok Kim),유일경(Il-Kyoung You),임성훈(Sung-Hun Lim),김재철(Jae-Chul Kim) 대한전기학회 2011 전기학회논문지 Vol.60 No.1
This paper analyzed the application of Superconducting Fault Current Limiter (SFCL) on 22.9 [㎸] bus tie in a power distribution system. Commonly, the parallel operations of power main transformers offer a lot of merits. However, when a fault occurs in the parallel operation of power main transformer, the fault currents might exceed the interruption capacity of existing protective devices. To resolve this problem, thus, the SFCL has been studied as the fascinating device. In case that, Particularly, the SFCL could be installed to parallel operation of various power main transformers in power distribution system of the Korea Electric Power Corporation (KEPCO) on 22.9 [㎸] bus tie, the effect of the resistance of SFCL could reduce the increased fault currents and meet the interruption capacity of existing protective devices by them. Therefore, we analyzed the effect of application and proposed the proper impedance of the R-type SFCL on 22.9 [㎸] bus tie in a power distribution system using PSCAD/EMTDC.
배전계통의 고장전류 제한을 위한 초전도 한류기 적용시 선로거리별 영향 분석
김명현(Myong-Hyon Kim),김진석(Jin-Seok Kim),임성훈(Sung-Hun Lim),김재철(Jae-Chul Kim),온민귀(Min-Gwi On),황승욱(Seung-Wook Hwang) 한국조명·전기설비학회 2011 한국조명·전기설비학회 학술대회논문집 Vol.2011 No.5월
Due to increase of fault current, various superconducting fault current limiter (SFCL) are researched. We studied a power distribution system with SFCL. Along the way, we knew characteristics of fault current according to a distance from substation to fault point. Fault current is reduced by distance’s increase from substation. Also, SFCL’s effects are decreased by distance too. Therefore, we analyzed the fault current by a distance from substation to fault point when a SFCL was applied into a power distribution system.