Switching reaction of Nb3Sn persistent current switch with a high current capacity

M. Tomita, K. Nemoto, Masato Murakami, K. Sugawara

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We designed a persistent current switch (PCS) consisting of Nb3Sn superconducting wire for superconducting magneto-hydrodynamic propulsion ship. Nb3Sn has Tc higher than NbTi, which is commonly used for the conventional PCS, and thus Nb3Sn is expected to show a higher stability against disturbance. We performed numerical simulations for the heat transfer in a 3-kA-class Nb3Sn PCS by using a finite element method. We then constructed a 3 kA-6 Ω Nb3Sn PCS and measured its switching performance. The results obtained in 3-kA PCS are utilized for the simulation of 10-kA-class switching performance including numerical simulations for the heat transfer. The results of switching performance will be presented based on the computer simulation for temperature distribution during the heating and cooling cycles. We also present the estimated time for the transition from the superconducting to normal state (off-state) and vice versa (on-state).

Original languageEnglish
Pages (from-to)1336-1341
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume357-360
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2001 Sep
Externally publishedYes

Fingerprint

high current
switches
Switches
Computer simulation
heat transfer
Heat transfer
Ship propulsion
Superconducting wire
simulation
ships
propulsion
finite element method
Temperature distribution
temperature distribution
disturbances
Hydrodynamics
computerized simulation
hydrodynamics
wire
Cooling

Keywords

  • Finite element method
  • Heat transfer
  • NbSn
  • Persistent current switch
  • Superconducting magnet

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Switching reaction of Nb3Sn persistent current switch with a high current capacity. / Tomita, M.; Nemoto, K.; Murakami, Masato; Sugawara, K.

In: Physica C: Superconductivity and its Applications, Vol. 357-360, No. SUPPL. 1, 09.2001, p. 1336-1341.

Research output: Contribution to journalArticle

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