Computation of ac wet flashover voltage of ceramic and composite insulators

L. Lan, R. S. Gorur

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

This paper presents a theoretical method for calculating the flashover voltage of ceramic and composite insulators under wet conditions. The insulator surface is assumed to be clean. A 3-Dimensional computer package (Coulomb) was used to calculate the electric field of wet surfaces. The surface wettability has been varied from hydrophobic to hydrophilic using the Swedish Transmission Research Institute (STRI) method of classification. The calculated results are in good agreement with published data.

Original languageEnglish (US)
Article number4656243
Pages (from-to)1346-1352
Number of pages7
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Volume15
Issue number5
DOIs
StatePublished - Oct 1 2008

Keywords

  • Arc
  • Ceramic insulators
  • Composite (nonceramic, polymeric) insulators
  • E-field simulation
  • Residual resistance
  • Wet flashover

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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