Velocity and electric field of the arc root propagating over an ice surface

S. Farokhi, A. Nekahi, M. Farzaneh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Power outage caused by flashovers of ice-covered insulators is a challenging problem in cold climate regions. In order to investigate the physical mechanisms and factors which influence arc propagation over ice surface, a simplified ice model is used. A model was developed to calculate the electric field of the arc head and the velocity of arc propagation. In order to validate the model, high-speed photography using an ultra-high speed camera was employed. A simplified physical setup which enables us to observe the movement of arc head over an ice surface was used. Arc velocity over the ice surface was measured experimentally from the captured images and the results have been compared to the calculated value from mathematical model.
Original languageEnglish
Title of host publication2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena
PublisherIEEE
Pages32-34
Number of pages3
ISBN (Electronic)9781479925971
DOIs
Publication statusPublished - 31 Oct 2013

Publication series

Name
ISSN (Print)0084-9162

Keywords

  • ice surface
  • electric fields
  • force
  • films
  • electrodes
  • insulators

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