Heat propagation and stability in a small high Tc superconductor coil

Takanobu Kiss, V. S. Vysotsky, H. Yuge, H. Saho, Yu A. Ilyin, M. Takeo, K. Watanabe, F. Irie

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Abstract

Using a Bi-based small high Tc superconductor (HTSC) coil, we have studied its stability against a local disturbance and current-induced quench in the helium gas cooling condition. While the stability margin of HTSC coil against a local disturbance was very large, quench current was limited by a catastrophic temperature rise which originated from the nonlinear characteristic of the Joule heating. The crucial parameter for the quench becomes the nonlinear resistance in HTSC as a function of temperature and transport current. It has been shown that the dynamic characteristics of the quench can be described quantitatively by the simplified one-dimensional heat balance equation.

Original languageEnglish
Pages (from-to)372-376
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume310
Issue number1-4
DOIs
Publication statusPublished - Jan 1 1998

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All Science Journal Classification (ASJC) codes

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

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