Dielectric behaviour of polluted porcelain insulators

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dc.contributor.author Topalis, FV en
dc.contributor.author Gonos, IF en
dc.contributor.author Stathopulos, IA en
dc.date.accessioned 2014-03-01T02:41:51Z
dc.date.available 2014-03-01T02:41:51Z
dc.date.issued 2001 en
dc.identifier.issn 1350-2360 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/30630
dc.subject.classification Engineering, Electrical & Electronic en
dc.subject.other Air pollution en
dc.subject.other Computer simulation en
dc.subject.other Density (specific gravity) en
dc.subject.other Dielectric properties en
dc.subject.other Flashover en
dc.subject.other Mathematical models en
dc.subject.other Porcelain en
dc.subject.other Polluted porcelain insulators en
dc.subject.other Electric insulators en
dc.title Dielectric behaviour of polluted porcelain insulators en
heal.type conferenceItem en
heal.identifier.primary 10.1049/ip-gtd:20010258 en
heal.identifier.secondary http://dx.doi.org/10.1049/ip-gtd:20010258 en
heal.language English en
heal.publicationDate 2001 en
heal.abstract The dielectric behaviour of polluted porcelain insulators is investigated by means of experimental tests and simulation methods. The elaboration of the experimental results, using well known mathematical models of polluted insulators, leads to the identification of the arc constants. It was found out that the arc constants are independent of the insulator type and of the experimental pollution procedure (salt fog or solid layer cool fog method). This allows the formulation of a generalised simulation model of polluted insulators. The critical parameters for the flashover (voltage, current and gradient) are computed by means of the developed model, using only the geometric dimensions of the insulator, the pollution severity and the arc constants. Different types of porcelain insulators are investigated and the variation of the critical parameters upon the density of the pollution layer is determined. The influence of the geometrical dimensions and of the shape of the insulator to the critical parameters is also investigated. Furthermore, analytical relations are defined, between the computed critical parameters and the salt deposit density as well as the dimensions, the shape and the type of the insulator. en
heal.publisher IEE-INST ELEC ENG en
heal.journalName IEE Proceedings: Generation, Transmission and Distribution en
dc.identifier.doi 10.1049/ip-gtd:20010258 en
dc.identifier.isi ISI:000170552200001 en
dc.identifier.volume 148 en
dc.identifier.issue 4 en
dc.identifier.spage 269 en
dc.identifier.epage 274 en

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