Thermal quench behaviors of no-insulation coils wound using gdbco coated conductor tapes with various lamination materials

Yoon Hyuck Choi, Oh Jun Kwon, Young Gyun Kim, Jung Bin Song, Ji Hyung Kim, Ho Min Kim, Haigun Lee

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

This paper presents the quench initiation and propagation characteristics of no-insulation racetrack coils wound using three types of Cu-stabilized GdBCO coated conductors (CCs), with SUS and brass laminations, and without lamination. The test results show that the minimum quench energy values of the brass-laminated GdBCO CC coil were larger than those of the SUS-laminated one. Moreover, the normal zone propagation velocities of the brass-laminated GdBCO CC coil were greater than those of the SUS-laminated one due to the higher thermal conductivity of brass. Moreover, the nonlaminated GdBCO CC coil exhibited greatly improved thermal stability compared to the brass/SUS-laminated GdBCO CC coils, because the local heat in the event of quenching was easily dissipated due to the absence of lamination.

Original languageEnglish
Article number6606859
JournalIEEE Transactions on Applied Superconductivity
Volume24
Issue number3
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • Lamination
  • minimum quench energy (MQE)
  • no-insulation (NI)
  • normal zone propagation velocity (NZPV)
  • thermal stability

ASJC Scopus subject areas

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

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