Residual Magnetic Field Measurement of BSCCO and YBCO Tapes by a Hall Probe
Residual Magnetic Field Measurement of BSCCO and YBCO Tapes by a Hall Probe
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DOI：
10.1109/tasc.2014.2372632
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发表时间：
2015-06-01
影响因子：
1.8
通讯作者：
Yamaguchi, Sataro
中科院分区：
文献类型：
--
作者：
Tallouli, Mohamed;Sun, Jian;Yamaguchi, Sataro
由于过流情况或电缆组装过程中的技术错误，由高温超导 (HTS) 胶带制造的电力电缆可能会发生严重损坏。为了避免在任何紧急情况下电缆损坏，必须快速中断传输电流。需要全面了解高温超导带的电流切断时间，才能重新启动输电线路的运行。在本文中，我们对 BSCCO 和 YBCO 磁带应用 100A 传输电流。中断电流后，我们测量了每个高温超导带的磁场分布。我们比较电流快速和慢速切断的磁场分布。快切的截止时间为 0.15 ms，慢切的截止时间为 100 s。通过求解反问题获得电流密度分布。我们的结果表明，每个实验条件和高温超导带的磁场分布有很大不同，这与高温超导带特性的磁滞有关。
A serious damage can happen to the power cable manufactured from the high-temperature superconducting (HTS) tapes due to overcurrent conditions or because of technical errors during the cable assembling. To avoid the cable damage in any urgent case, a quick interruption of the transport current is necessary. Comprehensive understanding of the current cutoff time of the HTS tape is required to restart the operation of the power transmission line. In this paper, we applied 100-A transport current to BSCCO and YBCO tapes. After interrupting the current, we measured themagnetic field profiles of each HTS tape. We compare themagnetic field profiles for the fast and slow cuts of the current. The cutoff time is 0.15 ms for the fast cut and 100 s for the slow one. The current density profiles are obtained by solving the inverse problem. Our results show that the magnetic field profiles are quite different from each experimental condition and HTS tape, which are related to the hysteresis of HTS tape characteristics.