Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on Stability of Ag sheathed Bi-2229 tape and Cylindrical Stacking Conductor for HTS Cable

고온초전도 케이블용 은시스 Bi-2223 테이프 및 적층 도체의 안정성연구

  • Lee, B.S. (Dept. of Electrical Engineering, Gyeongsang Nat'1 Univ. (RIIT)) ;
  • Kim, Y.S. (Dept. of Electrical Engineering, Gyeongsang Nat'1 Univ. (RIIT)) ;
  • Jang, H.M. (Dept. of Electrical Engineering, Gyeongsang Nat'1 Univ. (RIIT)) ;
  • Back, S.M. (Dept. of Electrical Engineering, Gyeongsang Nat'1 Univ. (RIIT)) ;
  • Kim, S.H. (Dept. of Electrical Engineering, Gyeongsang Nat'1 Univ. (RIIT))
  • 이병성 (경상대학교 공과대학 전기공학과(생산 기술 연구소)) ;
  • 김영석 (경상대학교 공과대학 전기공학과(생산 기술 연구소)) ;
  • 장현만 (경상대학교 공과대학 전기공학과(생산 기술 연구소)) ;
  • 백승명 (경상대학교 공과대학 전기공학과(생산 기술 연구소)) ;
  • 김상현 (경상대학교 공과대학 전기공학과(생산 기술 연구소))
  • Published : 2000.07.17
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Abstract

Normal zone propagation(NZP) characteristics were investigated on Ag sheathed multi filamentary Bi-2223 tape and cylindrical stacking conductor. The critical current($I_c$) of Ag sheathed Bi-2223 tape and cylindrical stacking conductor were 12 A, 63 A at 77 K, 0 T. Normal zone propagation(NZP) experiments with tape were conducted with refrigerator in temperature from 45 K to 77 K, 0 T. Cylindrical stacking conductor was molding with epoxy and experiments were conducted with adiabatic condition in $LN_2$. NZP velocities of tape with two condition of DC and AC were almost same at each temperature. Temperature ($T_1$) of tape with distance of 0.5 cm from heater was strongly climbed up to 95K and slowly decreased. NZP velocities of cylindrical stacking conductor were 1.9-2.4 cm/sec in $LN_2$.

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