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Influence of longitudinal magnetic field on thermomagnetic instabilities in alternating-current superconducting cables.

Author(s) : AMEMIYA N., HLASNIK I., TSUKAMOTO O.

Type of article: Article

Summary

As the critical current of a single alternating-current superconducting wire cannot be more than several tens of amperes, such single wires (strands) are bundled and twisted to make cables with a large current capacity. It is shown theoretically and experimentally that the alternating-current longitudinal magnetic field due to the twisting and bundling, influences the current distribution with an alternating-current transport current and can induce thermomagnetic instabilities in them. These instabilities cause alternating-current quench current degradation. A way of twisting to decrease these instabilities is also proposed.

Details

  • Original title: Influence of longitudinal magnetic field on thermomagnetic instabilities in alternating-current superconducting cables.
  • Record ID : 1994-2747
  • Languages: English
  • Source: Cryogenics - vol. 33 - n. 9
  • Publication date: 1993/09

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