AC loss properties of Bi-2212 Rutherford-type cables

被引:1
|
作者
Fukuda, Y
Matsumura, M
Kajikawa, K
Iwakuma, M
Funaki, K
Hasegawa, T
Kasahara, H
Akita, S
Sakaguchi, H
机构
[1] Kyushu Univ, Grad Sch Informat Sci & Elect Engn, Higashi Ku, Fukuoka 8128581, Japan
[2] Showa Elect Wire & Cable Co Ltd, Kawasaki, Kanagawa 2108660, Japan
[3] Cent Res Inst Elect Power Ind, Tokyo 2018511, Japan
[4] ISTEC, Tokyo 1350062, Japan
来源
PHYSICA C | 2001年 / 357卷 / 357-360期
关键词
Bi-2212; Rutherford cable; AC loss; pick-up coil method;
D O I
10.1016/S0921-4534(01)00490-7
中图分类号
O59 [应用物理学];
学科分类号
摘要
We investigated the AC loss properties of a Bi-2212 Rutherford-type cable with large current capacity for future SMES. The cable is composed of 20 strands with a diameter of 0.8 nim and reinforced by Ni based alloy, which is located in the center of the cable. The width and thickness of cable are 9.05 and 2.25 nun respectively. The strand has 61 x 7 filaments and the average diameter of the 61 filament bundle is about 0.2 nun. The critical current of the cable is about 2.9 kA at 4.2 K and 0 T. We measured the AC losses in the strand and the cable at 4.2 K by pick-up coil method. The AC loss in the strand was scarcely dependent on frequency since it was not twisted. On the other hand, the AC losses in the cable had remarkable frequency dependence. It may be due to the coupling current between strands. We quantitatively discuss the AC loss of the cable in comparison with theoretical evaluation. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1263 / 1266
页数:4
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