Electric field distribution on the outer surface of lower porcelain of an OIP transformer bushing-accumulation of metal-contained colloid

A. Nekahi, B.G. Stewart, S.G. McMeekin

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

1 Citation (Scopus)

Abstract

The Finite Element Method (FEM) is commonly used for electric field simulation. This paper presents, for the first time, the calculation of the electric field intensity on one phase of a 245-kV OIP condenser bushing by FEM considering the effect of metallic-contained colloids deposition on the outer surface of lower porcelain. The distribution of the electric field on the surface of the bushing is calculated and the location of maximum electric field intensity of the bushing is determined. The spots having the maximum electric field intensity are the vulnerable areas from which the partial discharge may initiate. The extension of stained area due to the trapping effect of electric field is been considered.
Original languageEnglish
Title of host publication2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials (ICPADM)
Place of Publication[Piscataway, NJ]
PublisherIEEE
Pages632-635
Number of pages4
ISBN (Print)9781479989041
DOIs
Publication statusPublished - 15 Oct 2015
Externally publishedYes
Event2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials - University of New South Wales, Sydney, Australia
Duration: 19 Jul 201522 Jul 2015

Conference

Conference2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials
Abbreviated titleICPADM 2015
CountryAustralia
CitySydney
Period19/07/1522/07/15

Keywords

  • bushings
  • colloids
  • electric discharges
  • electric fields
  • finite element method
  • partial discharges
  • porcelain, electric field distributions
  • electric field intensities
  • electric field simulation
  • HV transformers
  • maximum electric field
  • simulation
  • transformer bushings
  • trapping effects, dielectric materials

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  • Cite this

    Nekahi, A., Stewart, B. G., & McMeekin, S. G. (2015). Electric field distribution on the outer surface of lower porcelain of an OIP transformer bushing-accumulation of metal-contained colloid. In 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials (ICPADM) (pp. 632-635). IEEE. https://doi.org/10.1109/ICPADM.2015.7295351