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Experiments were performed to measure directly the current in each strand of a 12-strand Nb 3 Sn cable-in-conduit superconductor during current and/or external magnetic field ramps. The goal of the experiment was to get straightforward evidence of current maldistribution in a cable-in-conduit conductor (CICC). A heavily instrumented sample coil from Nb 3 Sn TPX-TF strands was specially...
The quench development process was studied with two six-strand superconducting cable samples with insulated strands and different cabling design. One sample was the traditional six-around-one cable, the other was of the round-braid type. Quench was initiated by a heating pulse applied to a single strand. A significant difference was observed in the current redistribution among strands due...
The stability margin was measured for a sample of a 6.3 m long cable-in-conduit conductor composed of 27 strands at various transport currents ranging from 1200 to 2800 A with heating periods of 10 and 40 ms using an approximately 80 mm inductive heater. The measured stability is classified into well cooled and poorly cooled regions. A numerical simulation was also performed to investigate the heat...
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