Total AC loss of Ag-Bi2223 tapes with various filament arrangements in parallel transverse magnetic field

Abstract

In this paper, we experimentally investigated the total AC loss characteristics under AC parallel transverse field for Bi2223 tapes with various filament arrangements in their cross section. The tapes with different filament arrangements in final tape sections were prepared by standard powder-in-tube (PIT) process with drawing using round dice and rectangular deformation process using two-axial rolling (TAR) technique. Total AC losses in the tapes carrying AC transport current in AC parallel transverse field were measured by means of the electromagnetic method. The measured loss values in the tapes were compared with the several analytical models. Based on the experimental results, the influence of filament arrangements on total AC loss behaviors is discussed, under the different operating conditions with various amplitude of current and applied field.