Measurement of the resistive leakage current in surge arresters under artificial rain test and impulse voltage subjection

Christodoulou, CA; Avgerinos, MV; Ekonomou, L; Gonos, IF; Stathopulos, IA

dc.contributor.author	Christodoulou, CA	en
dc.contributor.author	Avgerinos, MV	en
dc.contributor.author	Ekonomou, L	en
dc.contributor.author	Gonos, IF	en
dc.contributor.author	Stathopulos, IA	en
dc.date.accessioned	2014-03-01T01:31:04Z
dc.date.available	2014-03-01T01:31:04Z
dc.date.issued	2009	en
dc.identifier.issn	1751-8822	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19730
dc.subject	Leakage Current	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Electrical networks	en
dc.subject.other	Failure rates	en
dc.subject.other	High energies	en
dc.subject.other	Impulse voltages	en
dc.subject.other	Lightning performance	en
dc.subject.other	Resistive components	en
dc.subject.other	Resistive leakage currents	en
dc.subject.other	Surge arresters	en
dc.subject.other	Transmission and distributions	en
dc.subject.other	ZnO surge arresters	en
dc.subject.other	Ability testing	en
dc.subject.other	Deterioration	en
dc.subject.other	Rain	en
dc.subject.other	Repair	en
dc.subject.other	Voltage dividers	en
dc.subject.other	Zinc oxide	en
dc.subject.other	Leakage currents	en
dc.title	Measurement of the resistive leakage current in surge arresters under artificial rain test and impulse voltage subjection	en
heal.type	journalArticle	en
heal.identifier.primary	10.1049/iet-smt:20080123	en
heal.identifier.secondary	http://dx.doi.org/10.1049/iet-smt:20080123	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Surge arresters are installed on transmission and distribution lines and in substations between phase and earth in order to improve the lightning performance and reduce the failure rates. High-energy stresses and housing deterioration are the main factors of degradation and damage of surge arresters. Thus, there is need for testing and monitoring the electrical network's arresters, in order to verify their good condition and their ability to effectively protect the lines. The most common method used, is the measurement of the arresters' total leakage current (with the isolation of the resistive part), which is an indicator of the arrester's condition, since every change, deterioration or damage leads to an increase of the resistive leakage current. In the current work, the total leakage current of two 20kV ZnO surge arresters without gaps is measured and the resistive component for three different cases (brand new arresters, measurements under artificial rain and measurements after impulse voltage subjection) is computed. The analysis of the produced results can be useful in correct diagnosis of arresters' condition and in more effective schedule maintenance, since any recorded high-resistive currents do not necessarily result arrester's repair or replacement. © 2009 The Institution of Engineering and Technology.	en
heal.publisher	INST ENGINEERING TECHNOLOGY-IET	en
heal.journalName	IET Science, Measurement and Technology	en
dc.identifier.doi	10.1049/iet-smt:20080123	en
dc.identifier.isi	ISI:000266405800008	en
dc.identifier.volume	3	en
dc.identifier.issue	3	en
dc.identifier.spage	256	en
dc.identifier.epage	262	en