Design, fabrication and testing of a high-Tc superconducting power supply with the Bi-2223 load

Ho Min Kim, Yong Soo Yoon, Min Cheol Ahn, Tae Kuk Ko, Sang Jin Lee, Tae Su Han

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2 Citations (Scopus)


This paper presents the design and fabrication of a high-Tc superconducting (HTS) power supply. Its characteristics have been analyzed through experiments. A HTS power supply consists of two heaters, an electromagnet, and a Bi-2223 solenoid and a Bi-2223 pancake load. The timing sequential control of two heaters and an electromagnet is an important factor to generate pumping-current in the Bi-2223 load. The thermal analysis of switching parts of the Bi-2223 solenoid according to the heater input was carried out. Based upon the analysis, the 331 mH electromagnet and the 0.8 A dc heater current were optimally derived, and 8.5 sec and 17 sec for the pumping period were selected in this experiment. In the experiment, the maximum pumping current reached 1.7 A.

Original languageEnglish
Pages (from-to)837-841
Number of pages5
JournalIEEE Transactions on Applied Superconductivity
Issue number1
Publication statusPublished - 2002 Mar
Event17th Annual Conference on Magnet Technology - Geneva, Switzerland
Duration: 2001 Sept 242001 Sept 28

Bibliographical note

Funding Information:
Manuscript received September 24, 2001. This work was supported by Grant 2001-1-30200-027-3 from the Basic Research Program of the Korea Science and Engineering Foundation. H. M. Kim, M. C. Ahn, and T. K. Ko are with the Department of Electrical and Electronic Engineering, Yonsei University, Seoul, 120-749, Korea (e-mail: Y. S. Yoon is with the Department of Electrical Engineering, Ansan College of Technology, Ansan, 425-792, Korea (e-mail: S.-J. Lee is with the Department of Electrical Engineering, Uiduk University, Kyongju, 780-713, Korea (e-mail: T.-S. Han is with the Agency for Technology and Standards, Gwachun, 427-010, Korea (e-mail: Publisher Item Identifier S 1051-8223(02)03691-6.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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