AC transport current loss of assembled conductor of HTS tapes

We study experimentally and theoretically the AC transport current loss cha racteristics of a tape in multiple tapes assembled in single layer and subj ect to external field produced by transport currents of adjacent tapes. We measured the AC transport current losses of a Bi2223 silver-sheathed tape i n a single layer arrangement of three tapes using our newly developed poten tial leads arrangement to avoid spurious loss components caused by the magn etization in the adjacent tapes. In the paper, the influence of the externa l AC field produced by adjacent tapes on the loss characteristics is studie d based on the experimental results and theoretical analysis. (C) 1998 Else vier Science B.V. All rights reserved.