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AC-losses in Bi2Sr2Ca2Cu3O10+x tapes and a 3.15 meters long single phase cable

Cross section of the superconducting cable used.

By Jeppe Juul, Esben Mølgaard, Jens Jensen, Niels Hessel Andersen, Asger Bech Abrahamsen, Dag Willen, Chresten Træholt, Carsten Thidemann, Heidi Lentge

The AC losses in superconducting multifilament BiSCCO-2223 tapes and a 3.15 m single phase test cable were measured at 77 K using an electrical transport method. The cable had an inner diameter of 42 mm, it was composed of a single layer of 31 multifilament tapes and had a critical current of Ic=4.1 kA. The measured losses of the tapes were found to be in good agreement with the Norris ellipse model. The losses of the cable were, for high currents, found to be bounded by the monoblock and independent Norris ellipse models.

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