• Title/Summary/Keyword: Critical Flux

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Analysis of Operational Characteristics of Separated Three-Phase Flux-Lock SFCL (삼상 분리형 자속구속형 전류제한기의 동작 특성 분석)

  • Doo, Seung-Gyu;Du, Ho-Ik;Park, Chung-Ryul;Kim, Min-Ju;Kim, Yong-Jin;Han, Byoung-Sung
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.06a
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    • pp.289-289
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    • 2008

  • We investigated the operational characteristics of the separated three-phase flux-lock type superconducting fault current limiter (SFCL). The single-phase lock type SFCL consist of two coils, which are wound in parallel through an iron core. The high-$T_c$ superconducting(HSTC) thin film connected in series with secondary coil. The separated three-phase flux-lock type SFCL consist of three single-phase flux-lock type SFCL. In a normal condition, the SFCL is not operate. When a fault occurs, the current of a HSTC thin film exceeds its critical current by fault current, the resistance of the HSTC thin film generated. Therefore fault current was limited by SFCL. The separated three-phase flux-lock type SFCL are operated in fault condition such as the the single line-to-ground fault, the double line-to-ground fault and the triple line-to-ground fault. The experimental results, the SFCL operational characteristics was dependent on fault condition.

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