<?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>1815-5901</journal-id>
<journal-title><![CDATA[Ingeniería Energética]]></journal-title>
<abbrev-journal-title><![CDATA[Energética]]></abbrev-journal-title>
<issn>1815-5901</issn>
<publisher>
<publisher-name><![CDATA[Universidad Tecnológica de La Habana José Antonio Echeverría, Cujae]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1815-59012019000300245</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Avances en evaluación del estado y la vida remanente de transformadores de fuerza]]></article-title>
<article-title xml:lang="en"><![CDATA[Advances in the assessment of the state and the remnant life of power transformers]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montané García]]></surname>
<given-names><![CDATA[Jorge Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dorrbercker Drake]]></surname>
<given-names><![CDATA[Santiago Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[del Castillo Serpa]]></surname>
<given-names><![CDATA[Alfredo Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Termoeléctrica Ernesto Ché Guevara  ]]></institution>
<addr-line><![CDATA[ Mayabeque]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Tecnológica de la Habana José A. Echeverría, Cujae  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>40</volume>
<numero>3</numero>
<fpage>245</fpage>
<lpage>256</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1815-59012019000300245&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1815-59012019000300245&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1815-59012019000300245&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Como los transformadores de fuerza (TF) son parte principal de los costos de un sistema electroenergético, debe controlarse su estado, envejecimiento y vida remanente, para valorar su condición actual y futura, algo importante en la toma de decisiones de operación, mantenimiento o inversiones, que favorecen un uso óptimo de las finanzas y aseguran la confiabilidad y calidad. Un fallo de aislamiento de un TF implica daños sensibles, genera altos costos de reparación y pérdidas financieras. Al sistema de aislamiento papel-aceite es imposible realizarle mantenimientos, por lo que debe evaluarse su condición, para minimizar el riesgo de fallas y salidas de servicio. Se reseña la importancia de evaluar la probabilidad de vida remanente de TF y se analizan la trayectoria y los resultados conseguidos para su realización. Como resultado final, se establece la necesidad de encontrar un método, en que se pueda utilizar toda la información disponible sobre el estado de los TF, considerándose los factores de degradación.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Power transformers (PT) represent an extensive part of the costs structure in an electrical system, so it must to control its state, its ageing and its remnant life, in order to estimate its present and future condition, which is very important to take decisions in operation, maintenance or investments, stimulating an optimal use of financial resources and ensuring reliability and quality. A failure in the PT isolation causes big troubles, produces high repair costs and important financial losses. It is impossible to take maintenance actions on paper-oil isolation, so it is very important to assess its condition, in order to minimize the risk of failures and outages. The work presents a review of the importance of assess the probability of remnant life of PT and an analysis of state-of-the-art concerning methods for implementation of the assessment of that probability. Authors also express the necessity to find out a method to estimate the remnant life of PT, which allow using all the available information about its state, considering different degradation factors.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[aislamiento]]></kwd>
<kwd lng="es"><![CDATA[envejecimiento]]></kwd>
<kwd lng="es"><![CDATA[transformadores de fuerza]]></kwd>
<kwd lng="es"><![CDATA[vida remanente]]></kwd>
<kwd lng="en"><![CDATA[ageing]]></kwd>
<kwd lng="en"><![CDATA[isolation]]></kwd>
<kwd lng="en"><![CDATA[power transformers]]></kwd>
<kwd lng="en"><![CDATA[remnant life]]></kwd>
</kwd-group>
</article-meta>
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