AC losses of Ag-sheathed (Bi, Pb)2Sr2Ca2Cu3Ox monofilamentary and multifilamentary tapes
作者： A. Oota , T. Fukunaga , M. Matsui , S. Yuhya , M. Hiraoka
DOI: 10.1016/0921-4534(95)00293-6
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摘要: Abstract The AC losses are investigated at 77 K on the Ag-sheathed (Bi, Pb) 2 Sr Ca Cu 3 O x monofilamentary tape and multifilamentary tapes with filament numbers equal to 7, 19, 37 61, through an transport method under self-fields magnetic longitudinal fields. Although main contribution around a commercial frequency of 50 Hz comes from hysteresis loss independent measuring methods, for larger than by about one order magnitude. Such discrepancy is explained large aspect ratio superconductor core, which lowers only losses. subdivision in causes no notable influence ascribed loss. This compared result that suppresses while enhancing eddy current density distribution obtained numerical calculations based critical state model shows resemblance between tapes, conforms experimental results
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