Result: The influence of tape arrangements on the critical current of Bi-2223 superconducting current leads

Title:
The influence of tape arrangements on the critical current of Bi-2223 superconducting current leads
Authors:
QU, T.-M, GU, C, LI, X.-F, ZHAO, L, LI, P, ZHANG, H.-J, HAN, Z
Source:
The 2006 applied superconductivity conference, Seattle, WA, August 27-September 1, 2006. Part II of three partsIEEE transactions on applied superconductivity. 17(2):2232-2235
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2007.
Publication Year:
2007
Physical Description:
print, 7 ref 2
Original Material:
INIST-CNRS
Subject Terms:
Electronics, Electronique, Electrical engineering, Electrotechnique, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Electronique, Electronics, Electronique des semiconducteurs. Microélectronique. Optoélectronique. Dispositifs à l'état solide, Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices, Dispositifs supraconducteurs, Superconducting devices, Electrotechnique. Electroenergetique, Electrical engineering. Electrical power engineering, Matériaux, Materials, Matériel électrique divers, Various equipment and components, Eléments de connexion. Câblage. Filerie, Electric connection. Cables. Wiring, Bande supraconductrice, Superconducting tapes, Circuit protection, Protection circuit, Circuito protección, Conducteur électrique, Electrical conductor, Conductor eléctrico, Couche épaisse, Thick film, Capa espesa, Courant critique, Critical current, Corriente crítica, Dispositif supraconducteur, Superconductor device, Dispositivo supraconductor, Distribution champ, Field distribution, Distribución campo, Essai en place, In situ test, Ensayo en sitio, Etude comparative, Comparative study, Estudio comparativo, In situ, Méthode analyse, Analysis method, Método análisis, Supraconducteur haute température, High temperature superconductor, Supraconductor alta temperatura, Arrangement, Bi-2223, critical current, current lead, self field
Document Type:
Conference Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Applied Superconductivity Research Center, Department of Physics, Tsinghua University, Beijing 100084, China
Innova Superconductor Technology Co., Ltd, Beijing, China
ISSN:
1051-8223
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=19016718
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Electrical engineering. Electroenergetics

Electronics
Accession Number:
edscal.19016718
Database:
PASCAL Archive

Further Information

The current lead is an important application of high temperature superconductors. In this work, superconducting current leads are assembled by using Bi-2223 tapes with Jc = 32000 A/cm2 at 77 K under self-field. The influence of self field on the critical current (Ic) is studied by changing the distance (d) between neighboring tapes. With our in-situ d changing device, Ic values of current leads with 2 and 3 tapes are measured as a function of d (0.5-15 mm). It is found that the total Ic decreases greatly if d < 1.0 mm due to the influence of self-field. An analysis method concerning the field dependent property and self-field distribution of the current lead is suggested and compared with the experimental data. Finally 6-tape current leads are prepared. Copper layers are added as protection circuits, which are put between neighboring tapes. The total Ic is about 0.681 of the sum of Ic of each individual tape when d = 0.26 mm. This ratio increases to 0.835 if 1 mm thick copper layers are put between two adjacent tapes (d = 1.26 mm). It agrees with our calculation quite well. This knowledge helps us to design tape arrangements in current leads and other HTS devices using large current.