The Effect of Bobbin Material on the Thermal Stability of a Conduction-Cooled HTS Racetrack Coil

Oh Jun Kwon, Dong Gyu Yang, Jongseok Lee, Jung Bin Song, Jiho Lee, Tae Kuk Ko, Haigun Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The quench and recovery characteristics of two GdBCO-coated conductor racetrack coils, one wound onto a high-strength aluminum (AL 6061-T6) bobbin and the other wound onto an oxygen-free high-conductivity (OFHC) copper bobbin, were evaluated to investigate the effect of bobbin material on the thermal stability of the HTS racetrack coil. The test results show that the minimum quench energy values of the coil wound onto the OFHC copper bobbin were larger than those of the coil wound onto the AL 6061-T6 bobbin. Furthermore, in the case of the coil wound onto the OFHC copper bobbin, the voltage signals increased more slowly compared to the coil wound onto the AL bobbin, and the recovery time was much shorter after a hot spot was generated by a heater. Overall, the coil wound onto the OFHC copper bobbin exhibited better thermal stability due to its superior thermal diffusivity.

Original languageEnglish
Article number4602505
JournalIEEE Transactions on Applied Superconductivity
Volume24
Issue number3
DOIs
Publication statusPublished - 2014 Jun 1

Fingerprint

Bobbins
Thermodynamic stability
thermal stability
coils
conduction
Copper
copper
conductivity
Oxygen
oxygen
recovery
Recovery
thermal diffusivity
high strength
Thermal diffusivity
heaters
Aluminum
conductors
aluminum
electric potential

All Science Journal Classification (ASJC) codes

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

Cite this

Kwon, Oh Jun ; Yang, Dong Gyu ; Lee, Jongseok ; Song, Jung Bin ; Lee, Jiho ; Ko, Tae Kuk ; Lee, Haigun. / The Effect of Bobbin Material on the Thermal Stability of a Conduction-Cooled HTS Racetrack Coil. In: IEEE Transactions on Applied Superconductivity. 2014 ; Vol. 24, No. 3.
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The Effect of Bobbin Material on the Thermal Stability of a Conduction-Cooled HTS Racetrack Coil. / Kwon, Oh Jun; Yang, Dong Gyu; Lee, Jongseok; Song, Jung Bin; Lee, Jiho; Ko, Tae Kuk; Lee, Haigun.

In: IEEE Transactions on Applied Superconductivity, Vol. 24, No. 3, 4602505, 01.06.2014.

Research output: Contribution to journalArticle

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