Abstract
A 176 A/mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> , compactness racetrack NbTi superconducting coil has been developed in Institute of Plasma Physics, Chinese Academy of Sciences. The purpose of this research is to further enhance the levitate and guide force for superconducting maglev. The coil was wound monolith rectangle NbTi/Cu superconducting wire, insulated by fiberglass and polyimide, and cured by epoxy with vacuum pressure impregnation technology. This article pays attention to the coil design, fabrication, and “training” test effect associated with the use of epoxy impregnates. The coil performed the quench training fourteen times and the current increase to 330A@5.9T under 4.6 K. The test process will be outlined in detail, the “training” results will be discussed in this article.
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