Eur. Phys. J. AP
Volume 7, Number 2, August 1999
|Page(s)||119 - 125|
|Published online||15 August 1999|
Evaluation of coupling losses in RTD-superconducting cables using OPIT and IBAD tapes
Laboratoire de Génie Électrique de Paris, ESE, CNRS, Universités Paris VI et XI,
plateau du Moulon, 91192 Gif-sur-Yvette Cedex, France
2 Électricité de France, DER, 1 avenue du Général de Gaulle, 92141 Clamart Cedex, France
Corresponding author: email@example.com
Revised: 2 April 1999
Accepted: 21 May 1999
Published online: 15 August 1999
Models are proposed for two major components of the coupling eddy currents, induced in RTD- HTSC power transmission cables by a time varying transverse magnetic field. We consider multi-layer, multi-tape cable designs in which the winding direction alternates with each layer. By assuming unsaturated operation in the tapes we calculate resistive losses for a wide range of possible inter-tape contact resistances. Specific results are given for two hypothetical tape models corresponding to multi-filamentary OPIT (Oxyde-Powder In Tube) and thin film IBAD (Ion Beam Assisted Deposition) elaboration processes. Conclusions are made on the constraints that the results may take place on the future designs: particularly, on the decision whether or not to insulate the winding layers.
PACS: 84.70.+p – High-current and high-voltage technology: power systems; power transmission lines and cables (including superconducting cables) / 85.25.Kx – Superconducting wires, fibers, and tapes
© EDP Sciences, 1999
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