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Magnetization Characteristics Due to Fault Angle of Transformer Type SFCL with Two Isolated Secondary Windings

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Abstract

In this paper, a transformer type superconducting fault current limiter (SFCL) with two isolated secondary windings was fabricated to increase the current limiting capacity. As the magnetization current increased due to the large transient fault current immediately after the fault, the magnetization force variation, the operating range of the flux linkage, and the voltage region variation were compared at fault angles of 0° and 90°, respectively. The short-circuit test analyzed the current limiting operation, power consumption, and energy consumption characteristics according to the fault angle immediately after the fault occurrence. The results showed that the fault angle of 0° could limit the fault current much more than the fault angle of 90°. In addition, it was confirmed that the magnetization force variation, the operating range of the flux linkage, and the voltage induced in the primary winding were all much larger at the fault angle of 0° than at the fault angle of 90°.

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Acknowledgements

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of education (2018R1D1A1B07040471) and funded by the Ministry of education (2018R1D1A1B09083558).

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Authors and Affiliations

  1. Department of Aero Materials Engineering, Jungwon University, Goesan, Chungbuk, Republic of Korea

    Tae-Hee Han

  2. Department of Electrical Engineering, Soongsil University, Seoul, Republic of Korea

    Sung-Hun Lim

  3. Industry-University Cooperation Foundation and Regional-Industrial Application Research Institute, Kongju National University, Gongju, Chungnam, Republic of Korea

    Seok-Cheol Ko

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  1. Tae-Hee Han
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  2. Sung-Hun Lim
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  3. Seok-Cheol Ko
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Correspondence to Seok-Cheol Ko.

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Han, TH., Lim, SH. & Ko, SC. Magnetization Characteristics Due to Fault Angle of Transformer Type SFCL with Two Isolated Secondary Windings. J. Electr. Eng. Technol. 15, 2501–2508 (2020). https://doi.org/10.1007/s42835-020-00534-2

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  • DOI: https://doi.org/10.1007/s42835-020-00534-2

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