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http://dx.doi.org/10.5207/JIEIE.2009.23.12.090

Current Limiting Characteristics due to Application Location of a Superconducting Fault Current Limiter in a Simulated Power Distribution System  

You, Il-Kyoung (숭실대학교 대학원 전기공학과)
Kim, Jin-Seok (숭실대학교 대학원 전기공학과)
Kim, Myoung-Hoo (숭실대학교 대학원 전기공학과)
Kim, Jae-Chul (숭실대학교 전기공학부)
Lim, Sung-Hun (숭실대학교 전기공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.23, no.12, 2009 , pp. 90-95 More about this Journal
Abstract
The application of a large power transformer into a power distribution system was inevitable due to the increase of power demand and distributed generation. However, the decrease of the power transformer‘s impedance causes the short-circuit current of the power distribution system to increase and thus, the higher short-circuit current exceeds the cut-off ratings of the protective devices such as a circuit breaker. To solve these problems, several countermeasures have been proposed to protect the power system effectively from the higher fault current and the superconducting fault current limiter (SFCL) has been expected to be the promising countermeasure. However, the current limiting effect of SFCL including its bus voltage drop compensation depends on SFCL's application location in a distributed power system. In this paper, the current limiting and the bus-voltage drop compensating characteristics of the SFCL applied into a power distribution system were studied. In addition, the quench and the recovery characteristics of the SFCLs in each location of the power distribution system were compared each other.
Keywords
Superconducting Fault Current Limiter (SFCL); Power Distribution System; Short-Circuit Current; Bus Voltage Drop Compensation;
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