Total AC loss of Ag-sheathed Bi2223 tapes with various filament arrangements carrying AC transport current in AC parallel transverse magnetic field
Total AC loss of Ag-sheathed Bi2223 tapes with various filament arrangements carrying AC transport current in AC parallel transverse magnetic field
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DOI：
10.1088/0953-2048/20/3/005
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发表时间：
2007-01
影响因子：
3.6
通讯作者：
R. Inada;Kazunori Tateyama;Yuichi Nakamura;A. Oota;Chengshan Li;Ping-xiang Zhang
中科院分区：
文献类型：
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作者：
R. Inada;Kazunori Tateyama;Yuichi Nakamura;A. Oota;Chengshan Li;Ping-xiang Zhang
对于Bi2223带材作为多层结构电力电缆绞线的应用，带材必须在交流平行横场中携带交流输运电流，且场幅随层的位置而异。在本研究中，我们实验研究了Bi2223带材在平行横场下的总交流损耗特性，这些带材具有不同的横截面排列。采用圆模拉伸的传统管内粉末(PIT)工艺和双轴轧制(TAR)技术的矩形变形工艺制备了在最终带段中具有不同长丝排列的带。用电磁法测量了交流平行横场中传输交流电流的带材的交流总损耗。用几种分析模型对带材中的损耗值进行了比较。根据实验结果，讨论了在不同电流幅值和外加磁场的不同工作条件下，灯丝排列对交流总损耗行为的影响。
For the applications of Bi2223 tapes as the strands to power cables with multilayer structures, the tapes must carry the AC transport current in an AC parallel transverse field with various field amplitudes depending on the layer positions. In this study, we experimentally investigated the total AC loss characteristics under parallel transverse field for Bi2223 tapes with various filament arrangements in their cross sections. The tapes with different filament arrangements in the final tape sections were prepared by a conventional powder-in-tube (PIT) process with drawing using round dies and a rectangular deformation process using a two-axial rolling (TAR) technique. Total AC losses in the tapes carrying AC transport current in an AC parallel transverse field were measured by means of the electromagnetic method. The measured loss values in the tapes were compared with several analytical models. Based on the experimental results, the influence of filament arrangements on total AC loss behaviour is discussed, under the different operating conditions with various amplitudes of current and applied field.