• DocumentCode
    2786044
  • Title

    Sparks in SF6 and SF6/CF4 atmospheres: impact on metallic and insulating surfaces [in HV circuit breakers]

  • Author

    Trudeau, M.L. ; Fréchette, M.F. ; Larocque, R.Y.

  • Author_Institution
    IREQ, Varennes, Que., Canada
  • Volume
    2
  • fYear
    1996
  • fDate
    16-19 Jun 1996
  • Firstpage
    844
  • Abstract
    Solid materials (copper and Teflon) used in HV circuit breakers were exposed to a closely spark discharge in SF6 and SF6 /CF4 mixtures. The surface of the different samples was studied using X-ray photoelectron spectroscopy to reveal possible interactions with the by-products. Results show that discharging in SF 6 and SF6/CF4 mixtures produces active species, mainly F-groups, which exhibit strong interactions with metallic surfaces. The surface modification due to the discharge processes was found to be less apparent in the case of insulating materials
  • Keywords
    SF6 insulation; X-ray photoelectron spectra; circuit breakers; electric breakdown; insulation testing; sparks; surface discharges; switchgear testing; Cu; F-groups; HV circuit breakers; SF6; SF6 atmosphere; SF6/CF4 atmosphere; Teflon; X-ray photoelectron spectroscopy; active species; by-products interaction; discharge processes; insulating materials; insulating surfaces; metallic surfaces; surface modification; Atmosphere; Circuit breakers; Copper; Insulation; Sparks; Sulfur hexafluoride; Surface charging; Surface cleaning; Surface discharges; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on
  • Conference_Location
    Montreal, Que.
  • ISSN
    1089-084X
  • Print_ISBN
    0-7803-3531-7
  • Type

    conf

  • DOI
    10.1109/ELINSL.1996.549474
  • Filename
    549474
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2786044