Dynamic arc modeling of DC flashover under contaminated conditions

R. Sundararajan, R. S. Gorur

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

Abstract

A dynamic model which explains the contamination flashover of insulators is developed. It takes into account the instantaneous changes in the parameters of arc propagation. This model is based on the concepts summarized in the review paper by F. A. M. Rizk (1981) and the dynamic features reported in a paper by S. Anjana and C. S. Lakshminarasimha (1989), where Mayr's equation is used to calculate the instantaneous change in the arc parameters. The arc propagates when the net input energy to the arc is sufficient to sustain it. The arc gradient E arc is calculated either from analog models, such as the electrolytic tank, or from the relationship E arc = I arc × R arc. The flashover voltage is computed for a post and suspension insulator with uniform pollution layer (worst-case condition). The influence of arc parameters such as arc density, initial arc length, and arc resistance is discussed.

Original languageEnglish (US)
Title of host publicationConference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report
PublisherPubl by IEEE
Pages557-562
Number of pages6
StatePublished - Oct 1990
Event1990 Conference on Electrical Insulation and Dielectric Phenomena - Pocono Manor, PA, USA
Duration: Oct 28 1990Oct 31 1990

Other

Other1990 Conference on Electrical Insulation and Dielectric Phenomena
CityPocono Manor, PA, USA
Period10/28/9010/31/90

    Fingerprint

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Building and Construction

Cite this

Sundararajan, R., & Gorur, R. S. (1990). Dynamic arc modeling of DC flashover under contaminated conditions. In Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report (pp. 557-562). Publ by IEEE.