A study on normal zone propagation behavior of partially insulated GdBCO coil

Hyun Jin Shin, Kwang Lok Kim, Yoon Hyuck Choi, Donggyu Yang, Young Gyun Kim, Haigun Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper reports the quench initiation and propagation characteristics of two GdBCO single-pancake coils, one wound with Kapton tape every two turns and the other completely wound with Kapton tape, to investigate the effect of a partial insulation (PI) winding technique. The thermal/electrical stabilities of the PI coil were improved by turn-to-turn contacts between the partially uninsulated turns, leading to an increased minimum quench energy. Furthermore, transverse normal zone propagation velocities of the PI coil increased because local heat was well transferred through uninsulated turns during quench events.

Original languageEnglish
Article number6922490
JournalIEEE Transactions on Applied Superconductivity
Volume25
Issue number3
DOIs
Publication statusPublished - 2015 Jun 1

Keywords

  • GdBCO
  • minimum quench energy
  • normal zone propagation velocity
  • partial insulation

ASJC Scopus subject areas

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

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