Determination of heater triggering parameters of superconducting power supply with series-connected double-pancake load

Yeong Sik Kim, Yong Soo Yoon, Min Cheol Kim, Duck Kweon Bae, Min Cheol Ahn, Woo Yong Cheon, Tae Kuk Ko

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Abstract

This paper presents determination of heater triggering parameters of high-Tc superconducting (HTS) power supply with series-connected double-pancake load, as well as analysis of its characteristics as determined through experiments. A HTS power supply consists of two heaters, an electromagnet, a Bi-2223 solenoid, and a Bi-2223 series-connected double-pancake load of 6.0 mH. The timing sequential control of two heaters and an electromagnet is an important factor to generate pumping-current in the pancake 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 8 A electromagnet current and the 1.5 A dc heater current were optimally derived, and 8 s and 20 s for the pumping period were selected in this experiment. In the experiment, the maximum pumping current reached about 24 A.

Original languageEnglish
Pages (from-to)650-653
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume14
Issue number2
DOIs
Publication statusPublished - 2004 Jun 1

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All Science Journal Classification (ASJC) codes

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

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