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conference paper

Modelling the magnetic field effects in a high-Tc superconducting transformer

Stavrev, S.  
•
Grilli, F.  
•
Dutoit, B.  
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2003
Applied Superconductivity 2003 (Proceedings of the 6th European Conference on Applied Superconductivity)
6th European Conference on Applied Superconductivity

This paper describes quantitatively the magnetic field inside the windings of a HTS transformer. The results are obtained by means of finite element method simulations, using the electromagnetic software package Flux2D. The transformer design has been made by ŠKODA in the European project BIG-POWA. The ratings of the transformer are U1 = 400 V, I1 = 47 A, U2 = 133 V, I2 = 140 A (rms values). The magnetic field in the superconducting windings has been calculated in the steady state regime at 50 Hz. It is non-uniformly distributed along the width of the windings and reaches a magnitude of 80-100 mT. It is shown that the field near the end of the windings can be reduced by using ferromagnetic rings, placed in the lower and upper part of the transformer. The effect of the magnetic field on the critical current density in the Bi-2223/Ag tapes, with which the windings are made of, has been evaluated.

  • Details
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Type
conference paper
Author(s)
Stavrev, S.  
Grilli, F.  
Dutoit, B.  
Jelinek, Z.
Lombard, P.
Date Issued

2003

Published in
Applied Superconductivity 2003 (Proceedings of the 6th European Conference on Applied Superconductivity)
Volume

1

Start page

1083

End page

1090

Subjects

Non-Linear Modelling

•

Superconductivity

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LANOS  
SUPRA  
Event nameEvent placeEvent date
6th European Conference on Applied Superconductivity

Sorrento Italy

14-18 september 2003

Available on Infoscience
December 3, 2004
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/184296
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