Bi-2223 silver sheathed tapes are currently used in prototypes of HTS power devices, where they generally carry an electrical ac current and are exposed to an alternating magnetic field that may have different orientation with respect to the tape. In this work we describe the experimental set-up for measuring ac losses of HTS tapes due to the simultaneous presence of ac current and ac magnetic field. The experimental results have been compared and contrasted with a numerical model purposely developed for the evaluation of current distribution and ac loss in HTS tapes.
AC losses in transport current regime in applied AC magnetic field: experimental analysis and modeling [superconducting cables]
Grenci, G.;
2001
Abstract
Bi-2223 silver sheathed tapes are currently used in prototypes of HTS power devices, where they generally carry an electrical ac current and are exposed to an alternating magnetic field that may have different orientation with respect to the tape. In this work we describe the experimental set-up for measuring ac losses of HTS tapes due to the simultaneous presence of ac current and ac magnetic field. The experimental results have been compared and contrasted with a numerical model purposely developed for the evaluation of current distribution and ac loss in HTS tapes.
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