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1. WO2020117985 - CÂBLES À AIMANTS SUPRACONDUCTEURS CONNECTÉS EN SÉRIE

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[ EN ]

WHAT IS CLAIMED IS:

1. A superconducting device, comprising:

a superconducting cable having first and second ends and a plurality of

superconducting tapes in a plurality of phases extending between the first and second ends of the cable, the plurality of phases including a first phase, and at least one further phase, each phase having one or more of the superconducting tapes;

wherein the one or more superconducting tapes of the first phase is in electrical contact with one or more superconducting tapes of the at least one further phase through at least one resistive barrier that prevents current from passing between the first phase and the at least one further phase in the absence of a voltage between one or more of the

superconducting tapes of the first phase or the at least one further phase; and

wherein the first phase on the first end of the superconducting cable is electrically connected in series to the at least one further phase on the second end of the superconducting cable.

2. A superconducting device of claim 1, wherein the first end of the superconducting cable has a tapered configuration that exposes the one or more of the superconducting tapes of the first phase; wherein the second end of the superconducting cable has a tapered configuration that exposes one or more of the superconducting tapes of the at least one further phase, and wherein a connector electrically connects the one or more superconducting tapes of the first phase on the first end of the superconducting cable to the one or more superconducting tapes of the at least one further phase on the second end of the

superconducting cable in series.

3. A superconducting device of claim 1, wherein the plurality of superconducting tapes are wound around a former in a plurality of layers, wherein the first phase includes one or more of the plurality of layers, and wherein the at least one further phase includes a further one or more of the plurality of layers.

4. A superconducting device of claim 1, further comprising the resistive barrier, wherein the resistive barrier includes at least one layer of one or more metal tapes located between the first phase and the at least one further phase.

5. A superconducting device of claim 1, further comprising the resistive barrier, wherein the resistive barrier includes one or more of a metal, insulating, ceramic or organic coating or interface between the first phase and the at least one further phase.

6. A superconducting device of claim 1, wherein the first phase comprises a plurality of phases that are connected together in parallel, the at least one further phase comprises a plurality of further phases that are connected together in parallel.

7. A superconducting device of claim 6, wherein the series connection between the first phase and the at least one further phase is converted to a parallel connection during operation of the cable.

8. A superconducting device of claim 1, wherein the series connection between the first phase and the at least one further phase is converted to a parallel connection during operation of the cable.

9. A superconducting device of claim 1, wherein at least two of the further phases are electrically insulated from each other.

10. A superconducting device of claim 9, wherein the first phase comprises a plurality of phases that are connected together in parallel, the at least one further phase comprises a plurality of the further phases that are connected together in parallel.

11. A superconducting device of claim 10, wherein the series connection between the first phase and the at least one further phase is converted to a parallel connection during operation of the cable.

12. A superconducting device of claim 1, wherein the at least one further phase comprises a second phase and a third phase, and wherein the first phase is in electrical contact with the at least one second phase through a first resistive barrier of the at least one resistive barriers, and wherein the at least one second phase is in electrical contact with the at least one third phase through a second resistive barrier of the at least one resistive barriers.

13. A superconducting device comprising a superconducting cable having a plurality of layers of superconducting material arranged in a plurality of phases, and at least one insulating barrier electrically separating the phases from each other; and a connector structure connecting first and second ends of the superconducting cable, the connector structure electrically connecting at least two of the phases in parallel and connecting the two parallel-connected phases in series with at least another two of the phases that are also connected in parallel.

14. A superconducting device of claim 13 wherein each of the first and second ends of the superconducting cable are tapered to expose the plurality of phases at each end, for connection through the connector structure.

15. A superconducting device of claim 13, wherein the series connection is converted to parallel connections during operation of the cable.