DESIGN AND TESTING OF A HIGH-TEMPERATURE SUPERCONDUCTING CURRENT LEAD

被引：37

作者：

WU, JL ^{[1
]}

DEDERER, JT ^{[1
]}

HULL, JR ^{[1
]}

POEPPEL, RB ^{[1
]}

YOUNGDAHL, CA ^{[1
]}

ECKELS, PW ^{[1
]}

SINGH, SK ^{[1
]}

SINGH, JP ^{[1
]}

LANAGAN, MT ^{[1
]}

BALACHANDRAN, U ^{[1
]}

机构：

[1] ARGONNE NATL LAB,ARGONNE,IL 60439

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 02期

关键词：

D O I：

10.1109/20.133559

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：

The high critical temperature and low thermal conductivity of the ceramic superconductor Y-Ba-Cu-O were utilized to reduce the Joule heating and the heat leak in a vapor-cooled current lead design of nominally 1-kA capacity. The lead consists of a lower superconducting part and an upper normal metal (copper) part. The superconducting part is an assembly of twenty rectangular bars fabricated from a composite of Y-Ba-Cu-O and Ag (15% vol.) This part is designed to operate below the critical temperature of the ceramic superconductor. The copper part, consisting of twenty copper wires, extends outside of the cryostat and interfaces to the room temperature power supply. The lead was successfully tested in a liquid helium cryostat for currents up to 2 kA. At the optimum operating currents of 1.7 - 1.8 kA, the helium boil-off measurements show a heat leak reduction of approximately 40% from the conventional designs. Details of the design, fabrication issues, and the testing are presented.

引用

页码：1861 / 1865

页数：5

共 9 条

[1]

DEDERER JT, IN PRESS THERMAL ANA

[2] HIGH-CAPACITY SUPERCONDUCTING CURRENT LEADS OF Y1BA2CU3O7-X [J].