• DocumentCode
    3497472
  • Title

    PD measurements in N2-SF6 gas mixtures with the UHF method

  • Author

    Schöffner, G. ; Boeck, W.

  • Author_Institution
    Inst. of High Voltage Eng. & Power Transmission, Tech. Univ. Munchen, Germany
  • Volume
    5
  • fYear
    1999
  • fDate
    1999
  • Firstpage
    86
  • Abstract
    Highly stressed gas insulated systems are very sensitive to small defects like particles or sharp protrusions. For the detection of such defects in gas insulated substations (GIS) with pure SF6 insulation several PD measuring methods, the conventional method according to IEC 60270, the acoustical or the UHF method are in use. Especially the UHF method proved to be very sensitive. For N2-SF6 mixtures, it still has to be proved that the UHF method is applicable for sensitive PD measurements. Therefore PD measurements were carried out on different mixtures to examine whether the UHF method can be used for diagnostics in gas-insulated transmission lines (GIL). In addition, measurements of the PD currents in the time domain also were made to gain comprehensive results
  • Keywords
    gas insulated substations; IEC 60270; N2-SF6; N2-SF6 gas mixtures; UHF PD measurement methods; gas insulated substations; gas-insulated transmission lines; sensitive PD measurements; time domain PD currents measurement;
  • fLanguage
    English
  • Publisher
    iet
  • Conference_Titel
    High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
  • Conference_Location
    London
  • ISSN
    0537-9989
  • Print_ISBN
    0-85296-719-5
  • Type

    conf

  • DOI
    10.1049/cp:19990892
  • Filename
    818244
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3497472