AC losses in multifilamentary Bi-2223/Ag superconducting tapes

被引：10

作者：

Paasi, J ^{[1
]}

Lahtinen, M ^{[1
]}

Aized, D ^{[1
]}

Fleshler, S ^{[1
]}

Snitchler, G ^{[1
]}

Malozemoff, AP ^{[1
]}

机构：

[1] AMER SUPERCOND CORP,WESTBOROUGH,MA 01581

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1996年 / 32卷 / 04期

关键词：

D O I：

10.1109/20.511454

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：

In this study we examined ac losses in a multi-filamentary Bi-2223/Ag superconducting tape carrying sc transport current. The tape consisting of 85 filaments was helically wound to a single-layer coil, The losses were measured at 77 K in the frequency range from 1 Hz up to 250 Hz Current amplitudes I-p were ranging from i=I-p/I-c=0.6 to 1.5, critical current I-c=15.4 A determined by the standard 1 mu V/cm static electric field criterion, The roles of special loss component were considered: hysteresis, flux-creep, coupling and eddy current losses. Hysteresis losses due to the self-field of the ac transport current were found to dominate when i less than or equal to 1.1. Resistive losses dominated when i>1.2. In the hysteretic regime, the higher the frequency, the smaller the losses per cycle.

引用

页码：2792 / 2795

页数：4

共 14 条

[1] MEASUREMENTS OF AC LOSSES DUE TO TRANSPORT CURRENTS IN BISMUTH SUPERCONDUCTORS [J].