Coil performances of superconducting cables of AC applications

Multifilamentary superconducting wires with a greatly reduced level of losses have been produced with unit lengths of several tens of kilometers. Three industrial wires named 'L', 'T', and 'S', have been manufactured, comprising, respectively, 377982, 597102, and 920304 filaments, 0.14 mu m in diameter with a 0.13 mu m spacing between filaments. Coils made with (6+1) cables of each kind of strand have been tested. The results of coil tests performed with a (6+1) of 'L' strand from 0 to 100 Hz are given, as well as the first results of tests of coils made with two-stage cables (6+1)/sup 2/ with 'L', 'T', and 'S' strands.<
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