AC transport characteristics of QMG elements for fault current limiting devices

被引：5
|
作者：
Yang, C [1 ]
Miura, O
Ito, D
Morita, M
Tokunaga, T
机构：
[1] Tokyo Metropolitan Univ, Tokyo 158, Japan
[2] Nippon Steel Corp Ltd, Adv Technol Res Lab, Kawasaki, Kanagawa 2110035, Japan
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1999年 / 9卷 / 02期
关键词：
D O I：
10.1109/77.783550
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
To study the quenching behavior of a HTC YBa2Cu3O7-sigma pseudo single crystal bulk superconductor (QMG) as a resistive type fault current limiting device, the E-J characteristics, n-value and propagation velocity of the flux flow state and the resistive state of the QMG elements at 87 K were measured. The n-values, which varied from 5.4 to 73 at 87 It, were obtained for the QMG which has 1.6x10(3) A/cm(2) critical current densities at 87 K in 250 G. Based on the heat transfer characteristics between the QMG elements and coolant, the quench propagating velocity of the element in liquid argon is discussed.
引用
收藏
页码：1339 / 1342
页数：4
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