Calculation of the electric field on an insulator string using the finite elements method

Kontargyri, VT; Gonos, IF; Stathopulos, IA; Michaelides, AM

dc.contributor.author	Kontargyri, VT	en
dc.contributor.author	Gonos, IF	en
dc.contributor.author	Stathopulos, IA	en
dc.contributor.author	Michaelides, AM	en
dc.date.accessioned	2014-03-01T02:49:23Z
dc.date.available	2014-03-01T02:49:23Z
dc.date.issued	2003	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34565
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-1442278653&partnerID=40&md5=732bc9dc5a89e6fc84988c5fbd2eb57a	en
dc.subject.other	Boundary conditions	en
dc.subject.other	Computer simulation	en
dc.subject.other	Dielectric materials	en
dc.subject.other	Electric field effects	en
dc.subject.other	Electric lines	en
dc.subject.other	Electric transformers	en
dc.subject.other	Electromagnetic waves	en
dc.subject.other	Finite element method	en
dc.subject.other	Maxwell equations	en
dc.subject.other	Partial differential equations	en
dc.subject.other	Insulator strings	en
dc.subject.other	Power frequency voltage	en
dc.subject.other	Electric insulators	en
dc.title	Calculation of the electric field on an insulator string using the finite elements method	en
heal.type	conferenceItem	en
heal.publicationDate	2003	en
heal.abstract	In this paper the authors attempt to study the electric field on an insulator string. Essentially, the problem is to calculate the electric field distribution around the insulator and inside the insulator when it is stressed by power frequency voltage. The Finite Element Analysis (FEA) program OPERA was used to carry out the electromagnetic analysis on the insulator. This program uses the finite element method to solve the partial differential equations that describe the field. The OPERA-2d/ST & ADETEC programs return field parameters, including the electric field intensity distribution as well the distribution of the potential on the surface of the insulator. The simulation results have been compared with experimental results, which have been obtained in the High Voltage Laboratory of National Technical University of Athens. Furthermore, an attempt to simulate the pollution on the surface of the insulator has been carried out. For this analysis the wet pollutant on the insulator surface has been approached with a thin layer, which has specific properties of the pollutants. It has been ascertained that the dielectric stress of the insulator under pollution is significantly higher than under normal conditions. The aim of this work is to study the behaviour of an insulator, which is usually used, and to verify the surface pollution influence on its dielectric behaviour.	en
heal.journalName	Proceedings of the Universities Power Engineering Conference	en
dc.identifier.volume	38	en
dc.identifier.spage	450	en
dc.identifier.epage	453	en