Dielectric behaviour of polluted porcelain insulators

Topalis, FV; Gonos, IF; Stathopulos, IA

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