• DocumentCode
    2783813
  • Title

    Investigation of SF6-N2, SF6-CO 2 and SF6-air as substitutes for SF6 insulation

  • Author

    Qiu, Y. ; Feng, Y.P.

  • Author_Institution
    High Voltage Div., Xi´´an Jiaotong Univ., China
  • Volume
    2
  • fYear
    1996
  • fDate
    16-19 Jun 1996
  • Firstpage
    766
  • Abstract
    The dielectric strength of SF6-N2 is slightly higher than that of SF6-CO2 in slightly nonuniform fields encountered in gas-insulated switchgear (GIS) and gas-insulated cables, but the opposite is true in the cases of highly nonuniform fields and gas/film insulation existing in gas-insulated transformers. Experiments also show that the SF6-air mixture with the SF6 concentration being 0.8 can be used in cubicle type GIS, where the impulse dielectric strength of the gas mixture is apparently higher than that of SF6 gas
  • Keywords
    SF6 insulation; air insulation; carbon compounds; electric breakdown; electric strength; gas insulated switchgear; gas insulated transformers; insulation testing; nitrogen; power cable insulation; power cable testing; power transformer insulation; power transformer testing; switchgear testing; SF6; SF6-CO2; SF6-CO2 insulation; SF6-N2; SF6-N2 insulation; SF6-air insulation; dielectric strength; gas-insulated cables; gas-insulated switchgear; gas-insulated transformers; insulation breakdown testing; nonuniform fields; Coaxial components; Dielectric breakdown; Distributed computing; Electric breakdown; Electrodes; Equations; Rough surfaces; Steady-state; Sulfur hexafluoride; Surface roughness;
  • 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.1996.549457
  • Filename
    549457
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2783813