비절연 2차권선을 이용한 삼상 변압기형 초전도한류기의 고장전류제한 동작 분석Analysis on Fault Current Limiting Operations of Three-Phase Transformer Type SFCL Using Secondary Windings with Non-Isolation
- Other Titles
- Analysis on Fault Current Limiting Operations of Three-Phase Transformer Type SFCL Using Secondary Windings with Non-Isolation
- Authors
- 한태희; 고석철; 임성훈
- Issue Date
- Oct-2023
- Publisher
- 한국조명.전기설비학회
- Keywords
- Three-phase transformer type superconducting fault current limiter(SFCL); Superconducting modules (SCMs); Fault current limiting operations; Non-isolation; Unsymmetrical ground fault
- Citation
- 조명.전기설비학회논문지, v.37, no.5, pp.62 - 69
- Journal Title
- 조명.전기설비학회논문지
- Volume
- 37
- Number
- 5
- Start Page
- 62
- End Page
- 69
- URI
- https://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/44571
- DOI
- 10.5207/JIEIE.2023.37.5.062
- ISSN
- 1229-4691
- Abstract
- Three-phase transformer type superconducting fault current limiter(SFCL) using secondary windings with non-isolation, which consisted of three-phase transformer windings wound on three legs of E-I iron core and three superconducting modules(SCMs), were suggested and its fault current limiting operations according to ground-fault types were analyzed. To verify the effective operation of three-phase transformer type SFCL using secondary windings with non-isolation, the unsymmetrical ground and the symmetrical ground faults were applied into three-phase power simulated system with the suggested SFCL. From the analysis on the experiment, three-phase transformer type SFCL using secondary windings with non-isolation showed lower power burden of three SCMs compared to the SFCL using secondary winding with isolation, especially in case of an unsymmetrical ground fault occurrence.
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