Quench protection system for two-layer superconducting coils by an active power method

T. Inoue, N. Nanato, K. Sasaki, S. Murase

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

When the quench occurs in the superconducting coil, the excessive joule heating in the normal region may damage the coil. It is necessary to detect the quench in the coil as soon as possible and discharge the magnetic energy stored in the coil. We have presented a quench protection system based on the active power method which detects a quench regardless of the self-inductive and mutual-inductive voltage for multi-layer superconducting coils. In this paper, the usefulness of the developed system is confirmed for two-layer superconducting coils wound with Bi2Sr2Ca 2Cu3Ox HTS tapes.

Original languageEnglish
Pages (from-to)1870-1873
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume470
Issue number20
DOIs
Publication statusPublished - Nov 1 2010

Keywords

  • Active power method
  • Magnetically coupled superconducting coils
  • Mutual-inductive voltage
  • Quench protection

ASJC Scopus subject areas

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

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