Partager

Caractéristiques d'un interrupteur à constant persistant en NbTi et mécanisme de liaison supraconductrice au contact.

Characteristics of NbTi mechanical persistent current switch and mechanism of superconducting connection at contact.

Auteurs : OHTSUKA S., OHTSUBO H., NAKAMURA T., et al.

Type d'article : Article

Résumé

Case studies on energy losses due to the ON resistance of a mechanical switch and OFF resistance of a superconducting switch are carried out so as to show the necessity of a mechanical switch as a persistent current switch (PCS) in a large-scale SMES system. The contact resistance characteristics of a mechanical switch with NbTi bulk contact pieces are experimentally investigated as a function of switch driving force, switch pressing force, and ON-OFF operation number. The developed mechanical PCS, which has zero contact resistance, supports a superconducting current flow of more than 200 A. The formation mechanism of the superconducting connection at contact is modelled and analyzed based on theoretical considerations.

Détails

  • Titre original : Characteristics of NbTi mechanical persistent current switch and mechanism of superconducting connection at contact.
  • Identifiant de la fiche : 2000-1690
  • Langues : Anglais
  • Source : Cryogenics - vol. 38 - n. 9
  • Date d'édition : 09/1998

Liens


Voir d'autres articles du même numéro (1)
Voir la source

Indexation