Enhancement of the critical current of BSCCO tapes in stacked conductors with ferromagnetic sheets
小原 久人, 山内 健吾, TALLOULI Mohamed, 孫 建, 浜辺 誠, 渡辺 裕文, 河原 敏男, 山口 作太郎 （中部大）
Abstract:The critical current of HTS tape has been extensively studied with respect to their layout in the cable to improve the performance of the HTS tapes in the cable. In the stacked tape conductors, the critical current of BSCCO tapes shows strong dependence on the current feeding directions between the tapes. The critical current is improved when the opposite-direction current applied to them and diminished for the same-direction current feeding mode because of strong magnetic field interaction between them. By using the ferromagnetic sheets, the self-field distribution of HTS tapes will be affected and may improve their critical current in the cable. This technical paper will present the measurements of the critical currents of BSCCO tape in the stacked conductors with the ferromagnetic sheets under different current feeding mode. We will present effects on the critical current of HTS tape of the magnetic field from the currents applied to the neighboring tapes and the ferromagnetic sheets through the magnetic field analysis.