<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0379-3982</journal-id>
<journal-title><![CDATA[Revista Tecnología en Marcha]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnología en Marcha]]></abbrev-journal-title>
<issn>0379-3982</issn>
<publisher>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0379-39822015000300116</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Metodología para el análisis y retiro de activos: transformadores de potencia]]></article-title>
<article-title xml:lang="en"><![CDATA[Methodology for the analysis and retirement of assets: Power transformers]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Ramírez]]></surname>
<given-names><![CDATA[Gustavo Adolfo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de Costa Rica Escuela de Ingeniería Electromecánica ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>CR</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2015</year>
</pub-date>
<volume>28</volume>
<numero>3</numero>
<fpage>116</fpage>
<lpage>126</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0379-39822015000300116&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0379-39822015000300116&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0379-39822015000300116&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[ResumenEl siguiente artículo consiste en el desarrollo de una metodología en el ámbito de la ingeniería de alta tensión para el análisis y retiro de transformadores de potencia reparados, fundamentado en criterios ingenieriles, a fin de establecer una correlación entre el estado de la condición del transformador desde varios puntos de vista: eléctrico, mecánico, dieléctrico y térmico. Realizando un análisis del estado de la cuestión, se tienen dos situaciones de gran trascendencia, primeramente las normas internacionales son una "guía" para la aceptación de transformadores nuevos por lo que no pueden aplicarse al pie de la letra para transformadores reparados, debido al proceso mismo de degradación que el transformador ha sufrido con el paso de los años y todos los factores que conllevaran a una posible reparación. Segundo, con base en la literatura técnica más reciente, se han analizado artículos, los cuales analizan el aceite dieléctrico y el papel, lo cual se establecen correlaciones entre la calidad del papel aislante y la concentración de furanos en aceites. Para finalizar, gran parte de la investigación hasta ahora realizada, se ha enfocado en el análisis del transformador, a partir de la condición del aceite dieléctrico pues, en la mayoría de los casos, no se tiene la posibilidad de realizar una ingeniería forense dentro del transformador en operación y poder así, analizar las componentes de diseño que pueden comprometer la integridad y operatividad de este.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[AbstractThe following article consists of the development of a methodology of the area of the engineering of high voltage for the analysis and retirement of repaired power transformers, based on engineering criteria, in order to establish a correlation between the conditions of the transformer from several points of view: electrical, mechanical, dielectrics and thermal. Realizing an analysis of the condition of the question, there are two situations of great transcendency, first one, the international procedure are a "guide" for the acceptance of new transformers, by what they cannot be applied to the letter for repaired transformers, due to the process itself of degradation that the transformer has suffered with to happen of the years and all the factors that they were carrying to a possible repair. Second one, with base in the most recent technical literature, there have been analyzed articles, which analyze the oil dielectrics and the paper, which correlations are established between the quality of the insulating paper and the furan concentrations in the oils. To finish, great part of the investigation till now realized, it has focused in the analysis of the transformer, from the condition of the dielectric oil, so in most cases, there is not had the possibility of realizing a forensic engineering inside the transformer in operation and of being able this way, of analyzing the components of design who can compromise the integrity and operability of the same one.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Índices de condición]]></kwd>
<kwd lng="es"><![CDATA[retiro de activos]]></kwd>
<kwd lng="es"><![CDATA[transformadores de potencia]]></kwd>
<kwd lng="en"><![CDATA[Indexes of condition]]></kwd>
<kwd lng="en"><![CDATA[retirement of assets]]></kwd>
<kwd lng="en"><![CDATA[power transformers]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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