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논문 기본 정보

자료유형
학술저널
저자정보
Park Dong-Keun (Yonsei University) Ahn Min-Cheol (Korea Electrical Engineering & Science Research Institute) Yang Seong-Eun (Yonsei University) Lee Chan-Joo (Hyundai Heavy Industries) Seok Bok-Yeol (Hyundai Heavy Industries) Yoon Yong-Soo (Ansan College of Technology) Ko Tae-Kuk (Yonsei University)
저널정보
한국초전도저온학회 한국초전도·저온공학회논문지 한국초전도·저온공학회논문지 제8권 제2호
발행연도
2006.1
수록면
29 - 32 (4page)

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An advanced superconducting fault current limiter (SFCL) using $high-T_c$ superconducting (HTS) wire has been developed. The SFCL has a non-inductively wound magnet for reducing loss in normal state. Two types of non-inductively wound magnets, the solenoid type and the pancake type, were designed and manufactured by using Bi-2223 wire in this research. Short-circuit tests of the magnets were performed in sub-cooled $LN_2$ cooling system of 65 K. The magnets are thermally more stable and have a higher critical current in 65 K sub-cooled $LN_2$ cooling system than in 77 K saturated one. Because the resistivity of matrix at 65 K is lower than the resistivity at 77 K, the magnets generate a small resistance to reduce the fault current when the quench occurs. The magnets could limit the fault current to low current level with such a small resistance. The current limiting characteristic of the magnets was analyzed from the test result. The solenoid type was wound in parallel to make it non-inductive. The pancake type was also connected in parallel to be compared with the solenoid type in the same condition. The solenoid type was found to have a good thermal stability compared with the pancake type. It also had as large resistance as the pancake type to limit the fault current in sub-cooled $LN_2$ cooling system.

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