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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Woo-Seok (Electrical Engineering and Science Research Institute) Kim, Sung-Hoon (School of Electrical Engineering, Seoul National University) Hahn, Song-yop (School of Electrical Engineering, Seoul National University) Park, Kyeong-Dal (Graduate School of Energy, Korea Polytechnic University) Joo, Hyeong-Gil (Graduate School of Energy, Korea Polytechnic University) Hong, Gye-Won (Graduate School of Energy, Korea Polytechnic University) Han, Jin-Ho (Graduate School of Energy, Korea Polytechnic University) Lee, Don-Kun (Graduate School of Energy, Korea Polytechnic University) Park, Yeon-Suk (National High Magnetic Field Laboratory)
저널정보
한국초전도저온학회 한국초전도·저온공학회논문지 한국초전도·저온공학회논문지 제5권 제3호
발행연도
2003.1
수록면
34 - 37 (4page)

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A 1 MVA single-phase high temperature superconducting (HTS) transformer with BSCCO-2223 wire was designed in this paper. The rated voltages of each sides of the transformer are 22.9 kV and 6.6 kV respectively. Double pancake HTS windings arranged reciprocally will be used for the transformer windings, because of the advantages of insulation and distribution of surge voltage in case of a large power and high voltage transformer. Single HTS wire was used for the primary windings and four parallel wires were used for the secondary windings of the transformer with transposition. A core of the transformer was designed as a shell type core separated with the windings by a cryostat made of GFRP with a room temperature bore. The operating temperature of the HTS windings will be about 65K with sub-cooled liquid nitrogen. A cryogenic cooling system using a GM-cryocooler for this HTS transformer by natural convection of liquid nitrogen was designed. This type of cooling system can be a good option for compactness, efficiency, and reliability of the HTS transformer.

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