• DocumentCode
    1324326
  • Title

    Studies of impulse creepage discharge in transformer oil

  • Author

    Nakao, Y. ; Itoh, Hayato ; Sakai, Y. ; Tagashira, H.

  • Author_Institution
    Dept. of Electr. & Electron. Eng., Muroran Inst. of Technol., Japan
  • Volume
    26
  • Issue
    4
  • fYear
    1991
  • fDate
    8/1/1991 12:00:00 AM
  • Firstpage
    732
  • Lastpage
    738
  • Abstract
    The propagation process of a creepage discharge on the surface of a solid insulator in transformer oil was investigated in detail when impulse voltages with various rates of rise Tf of the wave front are applied to a point electrode. The shape and size of the Schlieren figures agree well with dust figures. The propagation of density changes (steamer-like density changes) corresponds to the current and the charge waveform. The effect of Tf on their propagation is also discussed
  • Keywords
    electric breakdown of liquids; impulse testing; insulating oils; insulation testing; schlieren systems; surface discharges; Schlieren figures; charge waveform; creepage discharge; current waveform; dust figures; impulse voltages; insulating surface; point electrode; solid insulator; steamer-like density changes; transformer oil; wave front; Delay effects; Dielectrics and electrical insulation; Electrodes; Oil insulation; Optical surface waves; Power transformer insulation; Pulse amplifiers; Solids; Surface discharges; Voltage;
  • fLanguage
    English
  • Journal_Title
    Electrical Insulation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9367
  • Type

    jour

  • DOI
    10.1109/14.83696
  • Filename
    83696
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1324326