Design and construction of LN/sub 2/-cooled prototype superconducting transmission cable

Author

Sinha, U. ; Hughey, R.L. ; Hesterlee, J. ; Lue, J.W. ; Lubell, M.S. ; Hawsey, R.A. ; Martin, P.M. ; Demko, J.A.

Author_Institution

Southwire Co., Carrollton, GA, USA

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

351

Lastpage

354

Abstract

The Southwire Company (USA) has initiated an R&D project to develop superconducting underground power transmission cables using newly developed high-temperature superconductors (HTS). In collaboration with Oak Ridge National Laboratory, two 500 A and one 2000 A prototype cables have been designed, constructed and tested. The cables were wound with Bi-2223/Ag HTS tapes acquired from Intermagnetics General Corporation and tested with both DC and AC currents in liquid nitrogen (LN/sub 2/). Critical currents of 900 A DC or better were achieved for the first two cables. The third cable was tested to an AC current over 2200 A/sub RMS/. This paper describes the design rationale, the construction process and the highlights of the test results.

Keywords

bismuth compounds; calcium compounds; cooling; copper compounds; high-temperature superconductors; power cable testing; power cables; silver; strontium compounds; superconducting cables; superconducting tapes; underground cables; 2000 A; 500 A; 900 A; AC current; Bi-2223/Ag HTSC tapes; BiSrCaCuO-Ag; DC current; R&D project; construction process; design rationale; high-temperature superconductors; liquid nitrogen cooling; performance test results; superconducting underground power transmission cables; Collaboration; High temperature superconductors; Laboratories; Power transmission; Prototypes; Superconducting cables; Superconducting films; Superconducting transmission lines; Testing; Underground power cables;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.614501

Filename

614501