The ground effect influence to rod-plate air gaps with or without dielectric barrier, at breakdown

Maglaras, A; Maglaras, L

dc.contributor.author	Maglaras, A	en
dc.contributor.author	Maglaras, L	en
dc.date.accessioned	2014-03-01T01:54:30Z
dc.date.available	2014-03-01T01:54:30Z
dc.date.issued	2005	en
dc.identifier.issn	11092777	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/27425
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-33645278386&partnerID=40&md5=441bc7d764e75cee637d01eec1f9aedf	en
dc.subject	Air gaps	en
dc.subject	Barrier effect	en
dc.subject	FEM	en
dc.subject	Field strength	en
dc.subject	Ground effect	en
dc.subject	Simulation	en
dc.subject.other	Computer simulation	en
dc.subject.other	Dielectric properties	en
dc.subject.other	Electric breakdown	en
dc.subject.other	Electric corona	en
dc.subject.other	Electric current distribution	en
dc.subject.other	Finite element method	en
dc.subject.other	Ground effect	en
dc.subject.other	Grounding electrodes	en
dc.subject.other	Leakage currents	en
dc.subject.other	Charged barrier	en
dc.subject.other	Corona space charges	en
dc.subject.other	Dielectric barrier	en
dc.subject.other	Field strength	en
dc.subject.other	Rod-plate air gaps	en
dc.subject.other	Electric field effects	en
dc.title	The ground effect influence to rod-plate air gaps with or without dielectric barrier, at breakdown	en
heal.type	journalArticle	en
heal.publicationDate	2005	en
heal.abstract	The breakdown of the air gaps is of great importance for the high voltage applications. One of the most determinant factors of the dielelectric strength of the air gaps is the field strength distribution in the gap. The corona space charges in the gap influence the distribution of the field strongly, and the breakdown voltage of the gap. In the present paper the arrangements of a rod-plate air gap with or without a barrier for the two different cases with the rod or the plate grounded are experimentally investigated and analyzed, using the Finite Element Method. Values of the field strength in the gap, when stressed by the breakdown voltage, are recorded and analyzed. The results show that the distribution of the field along the axis of the gap is strongly affected by the geometry of the gap, and especially by the grounded electrode (Ground Effect). The values of the breakdown voltage depend on the maximum value of the field strength in the gap and the value of the corona leakage current through the gap. A charged barrier between the electrodes influences the distribution of the field significantly as well as the breakdown voltage.	en
heal.journalName	WSEAS Transactions on Systems	en
dc.identifier.volume	4	en
dc.identifier.issue	11	en
dc.identifier.spage	2031	en
dc.identifier.epage	2038	en