New Transformer for Powering Superconducting Magnets

  • O. A. Shevchenko
  • H. J. G. Krooshoop
  • H. G. Knoopers
  • H. H. J. ten Kate
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 43)


A new method to increase the efficiency of powering a superconducting magnet is presented. The powering system links a superconducting magnet and the mains. It contains both room and low temperature electrical components.

The use of a conventional power supply with a pair of high current leads or application of rectifier schemes based on superconductors or cold semiconductors shows certain limits. We propose to introduce an iron-core superconducting transformer between the conventional power supply and the magnet. This step leads to an optimized operation of the powering system and it is applicable with both low and high Tc superconductors.

In order to demonstrate the approach, a model of the proposed powering unit has been developed. The performance of the unit is demonstrated while ramping a current of a small SC magnet operating at 4.2 K. The characteristic in- and output currents are ± 20 A and ± 1 kA respectively.


Iron Core Superconducting Magnet Magnet Current Secondary Coil Primary Coil 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • O. A. Shevchenko
    • 1
  • H. J. G. Krooshoop
    • 1
  • H. G. Knoopers
    • 1
  • H. H. J. ten Kate
    • 1
  1. 1.Faculty of Applied PhysicsUniversity of TwenteEnschedeThe Netherlands

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