Title :
Tests of tri-axial HTS cables
Author :
Gouge, M.J. ; Lindsay, D.T. ; Demko, J.A. ; Duckworth, R.C. ; Ellis, A.R. ; Fisher, P.W. ; James, D.R. ; Lue, J.W. ; Roden, M.L. ; Sauers, I. ; Tolbert, J.C. ; Træholt, Chresten ; Willén, Dag
Author_Institution :
Oak Ridge Nat. Lab., TN, USA
fDate :
6/1/2005 12:00:00 AM
Abstract :
The Ultera/ORNL team have built and tested 3-m and 5-m triaxial cables rated at 3 and 1.3 kA-rms, respectively. The three concentric superconducting phases are made of BSCCO-2223 HTS tapes, separated by layers of cold-dielectric tapes. A copper braid is added as the grounding shield on the outside of the three active phases. Tests of these cables were performed at temperatures ranging from 70 to 84 K. AC loss data reconfirmed the previous result on a 1.5-m prototype cable that the total 3-phase ac loss is about the sum of the calculated ac losses of the three concentric phases. These and other test results of the 1.3 and 3 kA cables will be used to construct a second 5-m triaxial cable rated at 3 kA-rms, 15 kV. Preliminary test results supporting this new cable and the associated termination are summarized.
Keywords :
high-temperature superconductors; power cable testing; power transmission; superconducting cables; superconducting tapes; 15 kV; 3 m; 5 m; 70 to 84 K; BSCCO-2223 tapes; BiSrCaCuO; ORNL team; Ultera; cold-dielectric tapes; concentric superconducting phases; copper braid; cryogenic terminations; high-temperature superconductivity; power transmission lines; superconducting tapes; total 3-phase ac loss; triaxial HTS cables; Copper; Grounding; High temperature superconductors; Performance evaluation; Prototypes; Superconducting cables; Superconducting epitaxial layers; Superconducting films; Temperature distribution; Testing; Cryogenic terminations; high-temperature superconductivity; power transmission lines;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.849304
