• DocumentCode
    1069460
  • Title

    Initial Tree Growth in PMMA

  • Author

    Watson, D.B. ; Morrin, P.C.

  • Author_Institution
    Department of Electrical Engineering University of Canterbury Christchurch, New Zealand
  • Issue
    5
  • fYear
    1980
  • Firstpage
    394
  • Lastpage
    397
  • Abstract
    This paper describes a study of tree growth in polymethylmethacrylate (PMMA) at the inception voltage under surge and dc conditions. Inception voltage and initial tree penetration are sensitive to polarity, a consequence of space charge injection. All trees are composed of similar branch segments. Results are discussed in terms of the PMMA structure.
  • Keywords
    Coils; Dielectrics; Electrodes; Heating; Microscopy; Space charge; Surges; Testing; Voltage; Wire;
  • fLanguage
    English
  • Journal_Title
    Electrical Insulation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9367
  • Type

    jour

  • DOI
    10.1109/TEI.1980.298332
  • Filename
    4080764