Optimum reduction of self field effects in a Bi-2223 stacked superconducting bus bar

被引：7

作者：

Nah, W

Kang, H

Park, IH

Joo, J

Oh, SS

Ryu, KS

Yoo, J

机构：

[1] Sungkyunkwan Univ, Dept Elect Engn, Suwon 440746, Kyunggi Do, South Korea

[2] Sungkyunkwan Univ, Dept Engn Met, Suwon 440746, Kyunggi Do, South Korea

[3] Korea Electrotechnol Res Inst, Appl Superconduct Lab, Chang Won, South Korea

[4] Korea Inst Mach & Mat, Dept Mat Proc, Chang Won, South Korea

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1999年 / 9卷 / 02期

关键词：

D O I：

10.1109/77.783457

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：

High Tc Superconductors, such as Bi-2223, have been promising candidates for an electrical bus bar because bus bar has relatively low self magnetic field. It has been found that the critical current of Bi-2223 stacked tapes is much less than the total summation of critical currents of each tape, which is mainly attributed to the self magnetic fields. Furthermore, since the critical current degradation of Bi-2223 tape is greater in the normal magnetic field (to the tape surface) than in the parallel one, detailed magnetic field configurations are required to reduce the self field effects. Conceptually, by rearranging each stacked tape properly, the self field effects could be minimized. In this paper, we calculate the self field effects of a stacked conductor, defining self field factors of normal and parallel magnetic fields to the tape surface. And we propose an optimum shape of octagonal structured bus bar which has minimum self field effects.

引用

页码：960 / 963

页数：4