Transformer bushings: modelling of electric field and potential distributions within oil impregnated paper with single and multiple spherical cavities

Donald J. Smith; Scott G. McMeekin; Brian Stewart; Peter A. Wallace

Transformer bushings: modelling of electric field and potential distributions within oil impregnated paper with single and multiple spherical cavities

Donald J. Smith, Scott G. McMeekin, Brian Stewart, Peter A. Wallace

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

Abstract

The majority of power transformer high voltage bushings today are of the condenser oil impregnated paper (OIP) type. These bushings have a series of dielectric layers with conductive foils in between each layer, which improve electric field uniformity. This paper studies the electric field and potential distributions within an OIP system containing single and multiple air filled spherical cavities. Simulations are made using the finite element method (FEM) for a plate-to-plate and a cylindrical geometry. The numerical models studied use typical parameters from OIP condenser bushings. The results show the distribution variation with cavity size, cavity location and the effects of clustered cavities. It is expected that the results will provide an improved understanding of how to model faults within OIP bushings.

Original language	English
Title of host publication	2010 45th International Universities Power Engineering Conference (UPEC)
Place of Publication	Piscataway, NJ
Publisher	IEEE
ISBN (Print)	9781424476671
Publication status	Published - 1 Jan 2010
Externally published	Yes

Keywords

transformer busings
electricity
high voltage

Cite this

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title = "Transformer bushings: modelling of electric field and potential distributions within oil impregnated paper with single and multiple spherical cavities",

abstract = "The majority of power transformer high voltage bushings today are of the condenser oil impregnated paper (OIP) type. These bushings have a series of dielectric layers with conductive foils in between each layer, which improve electric field uniformity. This paper studies the electric field and potential distributions within an OIP system containing single and multiple air filled spherical cavities. Simulations are made using the finite element method (FEM) for a plate-to-plate and a cylindrical geometry. The numerical models studied use typical parameters from OIP condenser bushings. The results show the distribution variation with cavity size, cavity location and the effects of clustered cavities. It is expected that the results will provide an improved understanding of how to model faults within OIP bushings.",

keywords = "transformer busings, electricity, high voltage",

author = "Smith, {Donald J.} and McMeekin, {Scott G.} and Brian Stewart and Wallace, {Peter A.}",

year = "2010",

month = jan,

day = "1",

language = "English",

isbn = "9781424476671",

booktitle = "2010 45th International Universities Power Engineering Conference (UPEC)",

publisher = "IEEE",

}

Transformer bushings: modelling of electric field and potential distributions within oil impregnated paper with single and multiple spherical cavities. / Smith, Donald J.; McMeekin, Scott G.; Stewart, Brian et al.
2010 45th International Universities Power Engineering Conference (UPEC). Piscataway, NJ: IEEE, 2010.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

TY - GEN

T1 - Transformer bushings

T2 - modelling of electric field and potential distributions within oil impregnated paper with single and multiple spherical cavities

AU - Smith, Donald J.

AU - McMeekin, Scott G.

AU - Stewart, Brian

AU - Wallace, Peter A.

PY - 2010/1/1

Y1 - 2010/1/1

N2 - The majority of power transformer high voltage bushings today are of the condenser oil impregnated paper (OIP) type. These bushings have a series of dielectric layers with conductive foils in between each layer, which improve electric field uniformity. This paper studies the electric field and potential distributions within an OIP system containing single and multiple air filled spherical cavities. Simulations are made using the finite element method (FEM) for a plate-to-plate and a cylindrical geometry. The numerical models studied use typical parameters from OIP condenser bushings. The results show the distribution variation with cavity size, cavity location and the effects of clustered cavities. It is expected that the results will provide an improved understanding of how to model faults within OIP bushings.

AB - The majority of power transformer high voltage bushings today are of the condenser oil impregnated paper (OIP) type. These bushings have a series of dielectric layers with conductive foils in between each layer, which improve electric field uniformity. This paper studies the electric field and potential distributions within an OIP system containing single and multiple air filled spherical cavities. Simulations are made using the finite element method (FEM) for a plate-to-plate and a cylindrical geometry. The numerical models studied use typical parameters from OIP condenser bushings. The results show the distribution variation with cavity size, cavity location and the effects of clustered cavities. It is expected that the results will provide an improved understanding of how to model faults within OIP bushings.

KW - transformer busings

KW - electricity

KW - high voltage

UR - http://ieeexplore.ieee.org/document/5649398/

M3 - Conference contribution book

SN - 9781424476671

BT - 2010 45th International Universities Power Engineering Conference (UPEC)

PB - IEEE

CY - Piscataway, NJ

ER -

Transformer bushings: modelling of electric field and potential distributions within oil impregnated paper with single and multiple spherical cavities

Abstract

Keywords

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