High temperature superconducting rotor power leads

Details High temperature superconducting rotor power leads High temperature superconducting rotor power leads

H - Electricity

02

K

H02K 13/00 (2006.01) H02K 55/04 (2006.01) H01F 6/06 (2006.01)

Patent

CA 2384481

The resistive power leads of a high temperature superconducting (HTS) rotor field coil are located in vacuum near the rotor axis and are cooled by thermal conduction to the return flow path (20) by bonding the leads to the tubing bulkhead (18) through ceramic insulators (22). The lead length, cross-section and electrical resistivity are optimized for minimum heat conduction and ohmic resistance heat transfer to the cold gas. Thermal expansion or contraction of the leads is accommodated by flexible sections at the warm and cold end of the leads.

Les fils de puissance résistifs d'une bobine de champ rotorique supraconducteur a haute température, sont situés dans une dépression, près de l'axe du rotor, et sont refroidis par conduction thermique, jusqu'au trajet de retour de circulation (20) par liaison électrique des fils à la cloison de tubage (18), à travers des isolateurs en céramique (22). La longueur des fils, las section et la résistivité sont optimisées pour que le transfert de chaleur au gaz froid présente une conduction thermique et une résistance ohmique minimales. La dilatation thermique ou la contraction des fils est adaptée par des sections souples, aux extrémités chaudes et froides des fils.

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