초록 ▼

Superconductive cables are disclosed including wires containing filaments of a superconductive material embedded in a matrix material which is normally conductive at low temperature. Undesirable inductive currents are created within the matrix material which partially flow along the filaments due to

Superconductive cables are disclosed including wires containing filaments of a superconductive material embedded in a matrix material which is normally conductive at low temperature. Undesirable inductive currents are created within the matrix material which partially flow along the filaments due to flucuations or changes in the magnetic field or due to variations in an external magnetic field. In order to suppress such undesirable currents and the losses connected therewith, the wires are twisted and cabled to form twisted strands of wires. The strands of wires are additionally twisted or entwined into bundles of twisted wire strands. This additional measure permits a systematic transposition of the wires and thus a suppression of the interference currents heretofore unattainable. In a preferred embodiment of the disclosed superconductive cable, the conductor wire strands are twisted or entwined with cooling pipes which permit an even cooling of the cable across its entire cross section.

대표청구항 ▼

An electrical superconductive cable, comprising: a plurality of bundles of wire strands, said plurality of bundles of wire strands being disposed such that said cable is divided by said bundles into one of a plurality of concentric annular sections and a plurality of radial sections, each of said pl

An electrical superconductive cable, comprising: a plurality of bundles of wire strands, said plurality of bundles of wire strands being disposed such that said cable is divided by said bundles into one of a plurality of concentric annular sections and a plurality of radial sections, each of said plurality of bundles of wire strands including a plurality of wire strands, each of said plurality of wire strands being covered by a sheath, each of said plurality of bundles of wire strands being covered by a sheath, each of said sheaths being formed from a highly electrically resistive, non-magnetic, heat conductive material, each of said plurality of wire strands including a plurality of wires, each of said plurality of wires including a plurality of superconductive filaments embedded in a matrix material; housing means for at least partially enclosing said cable; and cooling means integral with said cable for cooling said cable.