Abstract A compensation arrangement for accommodating the contraction occurring in superconducting cables as they are cooled down to the operating temperature. The superconducting cable is of the type wherein the superconducting material is applied as a layer on coaxial carrier tubes of electrically normal-conducting material, and the carrier tubes are inserted into a protective tube. The cable is movably guided in the protective tube, and a cover plate is located at an end of the cable and adapted for carrying the current connections and the coolant feed lines to the cable. A corrugated tube is provided for connecting the cover plate with the protective tube. Also, the cover plate is movable relative to the protective tube by means of a servo control in such manner that the connections to the cable remain essentially free of mechanical stresses under the thermal movements that occur.
Compensation arrangement for superconducting cables, wherein a superconducting material is applied as a layer on coaxial carrier tubes of electrically normal-conducting material, and the carrier tubes are inserted into a protective tube, comprising: means for movably guiding the cable in the protective tube; a cover plate located at an end of said cable, said cover plate carrying the current connections and the coolant feed lines to said cable; a corrugated tube connected between said cover plate and said protective tube, said corrugated tube encircling said current connections and said feed lines; and a servo control adapted for moving said cover plate relative to said protective tube, whereby the connections to said cable remain essentially free of mechanical stresses for the thermal movements that occur.
Claim 2
Dependent Claim
124 words
Compensation arrangement for superconducting cables, wherein a superconducting material is applied as a layer on coaxial carrier tubes of electrically normal-conducting material, and the carrier tubes are inserted into a protective tube, comprising: means for movably guiding the cable in the protective tube; a cover plate located at an end of said cable, said cover plate carrying the current connections and the coolant feed lines to said cable; a corrugated tube connected between said cover plate and said protective tube, said corrugated tube encircling said current connections and said feed lines; and a servo control adapted for moving said cover plate relative to said protective tube, whereby the connections to said cable remain essentially free of mechanical stresses for the thermal movements that occur.
Claim 3
Dependent Claim
36 words
Compensation arrangement as recited in claim 1, wherein said servo control for moving said cover plate comprises spindle drives which are controlled by distance measuring transducers in dependence on the thermal movement of the carrier tubes.
Claim 4
Dependent Claim
20 words
Compensation arrangement as recited in claim 1, also comprising a tubular radiation shield arranged to encircle said coaxial carrier tubes.
Claim 5
Dependent Claim
25 words
Compensation arrangement as recited in claim 3, wherein said radiation shield comprises a corrugated body which compensates for the thermal movement of the carrier tubes.