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STUDY OF NIOBIUM-TIN SUPERCONDUCTING COIL FOR ALTERNATING CURRENT USE.

[In Japanese. / En japonais.]

Author(s) : KISHIDA T.

Type of article: Article

Summary

THE SUPERCONDUCTORS WERE MANUFACTURED USING THE INTERNAL TIN DIFFUSION PROCESS. TO REDUCE ALTERNATING CURRENT LOSSES, THE SPACING BETWEEN NIOBIUM FILAMENTS WAS DESIGNED TO BE 0.5 MICROMETER AND, SEQUENTIALLY, THE SPACE FACTOR OF NIOBIUM FILAMENTS WAS 6 %. ALTERNATING CURRENT LOSSES IN THE STRAND WERE 180 KILOWATTS/M3 AT 0.5 T AND 18 KILOWATTS/M3 AT 0.1 T (60 HERTZ PEAK VALUE). A COIL WAS MADE BY THE WIND AND REACT METHOD USING CONDUCTORS COMPOSED OF 7 X 7 STRANDS. TO REDUCE WIRE MOTIONS, THE COIL IS IMPREGNATED WITH EPOXY RESIN. THE FIRST QUENCH CURRENT FOR DIRECT CURRENT OPERATION WAS 1,130 A. THE THIRD QUENCH CURRENT WAS 1,280 A, AND THE MAXIMUMMAGNETIC FIELD OF CONDUCTORS WAS 1.6 T.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1992-1522
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 26 - n. 3
  • Publication date: 1991
  • Document available for consultation in the library of the IIR headquarters only.

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