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Analysis on the Protective Coordination on Neutral Line of Main Transformer in Power Distribution Substation with Superconducting Fault Current Limiter  

Kim, Jin-Seok (숭실대 공대 전기공학부)
Lim, Sung-Hun (숭실대 공대 전기공학부)
Moon, Jong-Fil (충주대 공대 전기공학부)
Kim, Jae-Chul (숭실대 공대 전기공학부)
Hyun, Ok-Bae (한국전력연구원)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.11, 2009 , pp. 2089-2094 More about this Journal
Abstract
The fault current has increased due to growth of distributed generations for the large power demand in power distribution system. To solve some problem such as excess of the circuit breaker's cut-off ratings, the superconducting fault current limiter(SFCL) has been progressed. However, the operational characteristics of the relay is changed by SFCL. Therefore, the proper impedance for the SFCL should be selected to keep protective coordination with the SFCL when SFCL is introduced on the neutral line of main transformer in distribution system. In this paper, the proper normal conducting resistance was suggested to solve the problem in case of the protection coordination with SFCL.
Keywords
Superconducting Fault Current Limiter; Power System, Neutral Line; Protective Coordination;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 6
연도 인용수 순위
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