Power Current Leads Using Ag-Sheathed High-Tc Superconducting Tapes

To investigate a feasibility of Power current lead using High-Tc superconducting tapes, the assembled conductors stacking Ag-sheathed High-Tc superconducting tapes were fabricated and V-I characteristics were measured. The fabricated conductors had the electrically stable against aging and over current test, whose properties corresponded to that of tape itself considering self-magnetic field resulting from transport current. Calculated results as a function of Current Leads indicate that these conductors can efficiently reduce loss of Liquid He during operation of superconducting facilities.