• DocumentCode
    3494140
  • Title

    Corona at negative impulse stress in SF6 and SF6 -N2-mixtures

  • Author

    Pfeiffer, W. ; Welke, H.

  • Author_Institution
    Tech. Hochschule, Darmstadt, West Germany
  • fYear
    1988
  • fDate
    16-20 Oct 1988
  • Firstpage
    232
  • Lastpage
    237
  • Abstract
    Measurements of the corona onset voltage for negative impulse stress, single and repeating pulses, in SF6-N2 mixtures are compared with the DC-corona onset voltage. It is shown that the impulse corona onset voltage is some percent lower. Exceptions to this behaviour have been detected only for higher pressures (0.28-0.3 MPa) and a high content of SF6 (above 75%). Whenever impulse corona could be detected, it started always during the first pulse. The first detectable corona pulse started 30 ns after the beginning of the voltage stress
  • Keywords
    corona; electric breakdown of gases; gaseous insulation; mixtures; nitrogen; sulphur compounds; SF6; SF6-N2 mixtures; corona onset voltage; negative impulse stress; Cathodes; Corona; Delay; Pulse generation; Q measurement; Space vector pulse width modulation; Stress; Sulfur hexafluoride; Testing; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electrical Insulation and Dielectric Phenomena, 1988. Annual Report., Conference on
  • Conference_Location
    Ottawa, Ont.
  • Type

    conf

  • DOI
    10.1109/CEIDP.1988.26338
  • Filename
    26338
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3494140