Dependence of AC transport current losses of HTS wires on their structuresand synthesizing processes

HTS wires of various structures and synthesizing processes are being develo ped for power apparatus applications in Super-CM project. AC transport curr ent losses of four of those wires were measured by an electric method using a lock-in amplifier, Measured wires are a Bi2212 rod fabricated by the las er pedestal growth method, a Y123 tape fabricated by the pulsed laser depos ition and multilayered Bi2223/Ag sheathed wires of square and tape shapes. In this paper, based on measured data, dependence of AC transport current l osses of HTS wires on their structures and synthesizing processes is discus sed.