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DEVELOPMENT OF 5 MICRONS NBTI FILAMENT CABLE WITH A COPPER AND COPPER-NICKEL MATRIX FOR SUPERCONDUCTING GENERATOR.

Author(s) : DUBOTS P.

Summary

A SUPERCONDUCTING CABLE FOR A 250 MW GENERATOR MUST BE ABLE TO CARRY A HIGH CURRENT (HIGHER THAN 5,000 A) IN A MAGNETIC INDUCTION OF ABOUT 4 T AT 4.2 K. TO AVOID QUENCHING UNDER SHORT CIRCUIT CONDITIONS, THE CABLE IS MADE OF COMPOSITES CONTAINING SEVERAL THOUSANDS OF NBTI FILAMENTS WHOSE DIAMETER IS SMALLER THAN 10 MICRONS, IN A COPPER AND COPPER NICKEL MATRIX. NEVERTHELESS, TO ALLOW FOR AN UNEXPECTED QUENCHING, THE CABLE CONTAINS AN ADEQUATE AMOUNT OF PURE COPPER TO PREVENT ANY DEGRADATION BY HEATING. IN THIS PAPER THE AA. REVIEW THE MAIN PROBLEMS WHICH HAVE BEEN STUDIED FOR MANUFACTURING SUCH A CABLE IN KILOMETRIC UNIT LENGTH WITH GOOD ELECTRICAL AND SUPERCONDUCTING PROPERTIES. A TEST COIL MADE OF A SEVEN COMPOSITE CABLES HAS BEEN ENERGISED AT 14 T / S WITHOUT QUENCHING UP TO 90% OF THE CABLE CRITICAL CURRENT.

Details

  • Original title: DEVELOPMENT OF 5 MICRONS NBTI FILAMENT CABLE WITH A COPPER AND COPPER-NICKEL MATRIX FOR SUPERCONDUCTING GENERATOR.
  • Record ID : 1981-1094
  • Languages: English
  • Publication date: 1980/06/03
  • Source: Source: Proc. ICEC 8, Genes
    505-508; 4 fig.; 4 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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