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EXPERIMENTAL INVESTIGATION OF ALTERNATING CURRENT LOSSES IN CABLED SUPERCONDUCTORS.

Author(s) : MOWER T. M., IWASA Y.

Type of article: Article

Summary

MEASUREMENTS WERE PERFORMED ON NIOBIUM-TITANIUM AND NIOBIUM-TIN CONDUCTORS OF SEVERAL CONFIGURATIONS AND SURFACE PREPARATIONS. THE EXPERIMENTAL DATA AGREE WELL WITH LOSS MODELS WHICH ARE CHARACTERIZED IN TERMS OF EFFECTIVE COUPLING CURRENT TIME CONSTANTS. IT HAS BEEN DETERMINED THAT CHROME PLATING ON STRANDS CAN REDUCE THE COUPLING LOSS IN HIGHLY COMPACTED CABLES TO AS LITTLE AS 20%. AS COMPACTION IS INCREASED BELOW 50% VOID THE STRAND COUPLING QUICKLY INCREASES AND BECOMES THE DOMINANT LOSS MECHANISM. THE DATA SUGGEST THAT THE TOTAL CABLE LOSS GROWS AS ABOUT 1/(VOID)3 BELOW VOID FRACTIONS OF 40%.

Details

  • Original title: EXPERIMENTAL INVESTIGATION OF ALTERNATING CURRENT LOSSES IN CABLED SUPERCONDUCTORS.
  • Record ID : 1987-0431
  • Languages: English
  • Source: Cryogenics - vol. 26 - n. 5
  • Publication date: 1986

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