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AC loss is one of the major topics in large AC power applications using high temperature superconductor such as power transformers, transmission cables and fault current limiters because it is closely related to operation efficiency. Multi-stacked tape conductors should be used to transport the large current in those power applications. A research of various arrangements of HTS tapes for multi-stacked tapes has been performed to increase the capacity of transport current in HTS power applications. In this paper, we studied magnetization loss and shield effect from several different arrangements of BSCCO tapes such as Face-to-Face type, regular matrix type (m 2) and irregular matrix type. The results show that the magnetization loss of the Face-to-Face arrangement was lower than those of the other matrix types for the same stacking numbers. We think that the result was due to the shield effect by demagnetization of adjacent HTS tapes which were located as face to face.

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One of the major issues in power application of the HTS transmission cable is the AC loss as it is related with power transmission capacity and efficiency. Although the HTS transmission cable has only transport current without external magnetic field, the magnetization loss as well as the transport current loss is generated because any tape constituting transmission cable is exposed to magnetic fields given by currents flowing in other tapes of cable. The magnetic field induced by layer flowing current in the transmission cable have two components, that is, axial component magnetic fields at inner region and azimuthal component at outer region of each layer for transmission cable axis due to winding structure of cable. Therefore, any tape in the cable experience parallel and axial component magnetic field for tape wide face. So, the magnetization loss must be calculated in consideration of this field configuration.Index Terms-HTS transmission cable, magnetic field component, magnetization loss, SC tape.