• DocumentCode
    1478973
  • Title

    The pollution flashover of ac energized post type insulators

  • Author

    Holtzhausen, J.P. ; Vosloo, W.L.

  • Author_Institution
    Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa
  • Volume
    8
  • Issue
    2
  • fYear
    2001
  • fDate
    4/1/2001 12:00:00 AM
  • Firstpage
    191
  • Lastpage
    194
  • Abstract
    This paper investigates the application of a theoretical model to predict the flashover of practical post type insulators. In particular, the model is applied to two 132 kV designs with different profiles and leakage path lengths. It is found that arc shortening due to inter-shed and inter-rib flashover and arc movement results in a significant deterioration of the pollution performance of the insulator. The theoretical results are confirmed by salt fog tests and field experience
  • Keywords
    flashover; insulator contamination; insulator testing; 132 kV; ac energized post type insulators; arc shortening; inter-rib flashover; inter-shed flashover; leakage path lengths; pollution flashover; salt fog tests; Africa; Flashover; Insulation; Leakage current; Pollution; Shape; Stress; Surface contamination; Surface resistance; Voltage;
  • fLanguage
    English
  • Journal_Title
    Dielectrics and Electrical Insulation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1070-9878
  • Type

    jour

  • DOI
    10.1109/94.919925
  • Filename
    919925
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1478973