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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title Improvement of Current Limiting and Recovery Characteristics in Series Connection Type SFCL with Added Third Winding
Authors Seok-Cheol Ko ; Tae-Hee Han ; Sung-Hun Lim
DOI http://dx.doi.org/10.5207/JIEIE.2014.28.8.062
Page pp.62-68
ISSN 1225-1135
Keywords Current limiting and Recovery Characteristics ; Series Connection Type ; Superconducting Fault Current Limiter(SFCL) ; Third Winding
Abstract The series connection type superconducting fault current limiter (SFCL) with added third winding, which was magnetically coupled in one iron core, was proposed. The proposed SFCL was expected to be more improved by just adding third winding into the conventional series connection type SFCL with two coils. To analyze the contribution of the third winding for the current limiting and the recovery characteristics of the SFCL, the short-circuit tests for the series connection type SFCL with the added third winding were performed together with the analysis on its electrical equivalent circuit. From the comparative analysis on the amplitude of the limited fault current and the power burden of the high-TC superconducting (HTSC) element comprising this SFCL, the improved current limiting and recovery characteristics of the series connection type SFCL using the third winding could be confirmed.