Quench and recovery characteristics of the Zr-doped (Gd,Y) BCO coated conductor pancake coils insulated with copper and Kapton tapes

D. G. Yang, J. B. Song, Y. H. Choi, M. C. Ahn, J. B. Na, T. K. Ko, H. G. Lee

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19 Citations (Scopus)

Abstract

Quench protection is one of the most important issues for magnet applications using 2 G HTS tapes because of their non-self-protecting properties. Although many researchers have examined the quench/recovery characteristics of HTS magnets to establish the required stability, new information on the quench/recovery characteristics of the recently commercialized HTS magnet with GdBCO CC is needed. In this study, the quench/recovery characteristics of Zr-doped (Gd,Y)BCO CC pancake coils that were insulated with various materials, such as copper and Kapton tapes, were examined in a liquid nitrogen (LN2) bath. The minimum quench energy (MQE) and normal zone propagation (NZP) velocity of the Zr-doped (Gd,Y)BCO CC pancake coils are discussed in terms of the quench/recovery test results.

Original languageEnglish
Article number5659975
Pages (from-to)2415-2419
Number of pages5
JournalIEEE Transactions on Applied Superconductivity
Volume21
Issue number3 PART 2
DOIs
Publication statusPublished - 2011 Jun

Bibliographical note

Funding Information:
Manuscript received August 02, 2010; accepted October 22, 2010. Date of publication December 10, 2010; date of current version May 27, 2011. This study was supported by the Mid-career Researcher Program through an NRF Grant funded by the MEST (2009-0085369). D. G. Yang, J. B. Song, Y. H. Choi, and H. G. Lee are with the Department of Material Science and Engineering, Korea University, Seoul, Korea (e-mail: haigunlee@korea.ac.kr). M. C. Ahn is with the Department of Electrical Engineering, Gunsan National University, Gunsan, Korea. J. B. Na and T. K. Ko are with the Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2010.2090323

All Science Journal Classification (ASJC) codes

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

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