Ac and transient electric field distributions along a 380 kV V-string insulator

Suat Ilhan*, Aydogan Ozdemir, Shesha H. Jayaram, Edward A. Cherney

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

21 Citations (Scopus)

Abstract

This paper presents the results of a study of the ac and the transient electric field distributions along a 380 kV V-string of glass cap-and-pin suspension insulators. The transmission tower, conductors and insulators are modeled in 3D, and COMSOL 4.2 is used for the finite element simulations. The insulators are modeled both for clean and for the polluted cases. The pollution layer is modeled by a wet conductive layer of 2 mm thickness on the insulator surface and the conductivity of the layer is varied between 10 8 to 1.0 S/m. The permittivity of the pollution layer is assumed to be 81. Clean, full pollution and partial pollution cases are taken into consideration. The effects of corona rings on the field distributions are also investigated by 3D simulations.

Original languageEnglish
Title of host publicationConference Record of the 2012 IEEE International Symposium on Electrical Insulation, ISEI 2012
Pages399-403
Number of pages5
DOIs
Publication statusPublished - 2012
Event2012 19th IEEE International Symposium on Electrical Insulation, ISEI 2012 - San Juan, PR, United States
Duration: 10 Jun 201213 Jun 2012

Publication series

NameConference Record of IEEE International Symposium on Electrical Insulation
ISSN (Print)0164-2006

Conference

Conference2012 19th IEEE International Symposium on Electrical Insulation, ISEI 2012
Country/TerritoryUnited States
CitySan Juan, PR
Period10/06/1213/06/12

Keywords

  • 380 kV
  • Corona rings
  • electric field distributions
  • FEM
  • impulse voltage
  • insulator string
  • pollution
  • potential distributions

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