Partager

Document IIF

Cryogénie pour les jeux de barres à courant élevé : solutions et contraintes.

Cryogenics in high-current busbars – Solutions and requirements.

Numéro : pap. n. 41

Auteurs : HANEBECK C., HUWER S., SCHREINER F., et al.

Résumé

In superconducting high-current busbars the major cooling demand is generated in the current leads. To minimize these current lead losses we developed a novel multistage cooled current lead. Depending on the amperage from 20 kA in chlorine electrolysis up to 500 kA in aluminium plants one can choose from a limited variety of cooling machines. Most effective are refrigeration plants based on the Claude-cycle providing cooling power on different temperature levels. But these systems are only available for higher cooling demands i. e. amperages around and above 200 kA. To reduce the required quantity of high-temperature superconductor, the superconductor inside the busbar should be cooled by sub-cooled liquid nitrogen at a temperature between 65 and 70 K. For long-distance transmission lines it is recommended to reduce the busbar temperature down to 20 K and to use helium gas as coolant.

Documents disponibles

Format PDF

Pages : 5

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Cryogenics in high-current busbars – Solutions and requirements.
  • Identifiant de la fiche : 30021720
  • Langues : Anglais
  • Source : Cryogenics 2017. Proceedings of the 14th IIR International Conference: Dresden, Germany, Mai 15-19, 2017.
  • Date d'édition : 15/05/2017
  • DOI : http://dx.doi.org/10.18462/iir.cryo.2017.0041

Liens


Voir d'autres communications du même compte rendu (71)
Voir le compte rendu de la conférence

Indexation