Thermal coefficient measurements of the insulation in distribution transformers of a 20 kv network

Koufakis, EI; Karagiannopoulos, CG; Bourkas, PD

dc.contributor.author	Koufakis, EI	en
dc.contributor.author	Karagiannopoulos, CG	en
dc.contributor.author	Bourkas, PD	en
dc.date.accessioned	2014-03-01T01:29:21Z
dc.date.available	2014-03-01T01:29:21Z
dc.date.issued	2008	en
dc.identifier.issn	0263-2241	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19238
dc.subject	Ageing	en
dc.subject	Distribution transformer	en
dc.subject	Insulating resistance	en
dc.subject	Insulation thermal coefficient	en
dc.subject	Life cycle prediction	en
dc.subject	Transformer insulating system	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.other	Electric transformers	en
dc.subject.other	Life cycle	en
dc.subject.other	Maintenance	en
dc.subject.other	Reliability theory	en
dc.subject.other	Distribution transformer	en
dc.subject.other	Insulating resistance	en
dc.subject.other	Insulation thermal coefficient	en
dc.subject.other	Life cycle prediction	en
dc.subject.other	Transformer insulating system	en
dc.subject.other	Electric insulation	en
dc.title	Thermal coefficient measurements of the insulation in distribution transformers of a 20 kv network	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.measurement.2007.02.002	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.measurement.2007.02.002	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	An endless supply of electricity is taken for granted in today's world of commerce and business. Our dependence on a continuous supply of power, drives the search and development of reliable methods for the preventive diagnosis and maintenance of transformers. This paper primarily refers to measurements of insulating resistance in distribution transformers, at several temperatures, and thereafter to calculations of the thermal coefficient of the transformers. It overhauls the above characteristic magnitudes of 24 distribution transformers and indicates the observations and comments on ageing and remnant life of the insulation system of the transformers. A method for transformer life cycle prediction is suggested. (c) 2007 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Measurement: Journal of the International Measurement Confederation	en
dc.identifier.doi	10.1016/j.measurement.2007.02.002	en
dc.identifier.isi	ISI:000252747700002	en
dc.identifier.volume	41	en
dc.identifier.issue	1	en
dc.identifier.spage	10	en
dc.identifier.epage	19	en