<?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>S1815-59012023000300056</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Determinación de la causa raíz de fallas en transformadores de distribución]]></article-title>
<article-title xml:lang="en"><![CDATA[Determining the root cause of distribution transformer failures]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montejo Sivilla]]></surname>
<given-names><![CDATA[José Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sierra Gil]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Contreras Barrera]]></surname>
<given-names><![CDATA[René]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Camagüey &#8220;Ignacio Agramonte Loynaz&#8221;  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Empresa Eléctrica Provincial Ciego de Ávila  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>44</volume>
<numero>3</numero>
<fpage>56</fpage>
<lpage>65</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1815-59012023000300056&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1815-59012023000300056&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1815-59012023000300056&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El transformador de distribución es un dispositivo de gran importancia, de su confiabilidad depende la disponibilidad de energía eléctrica en determinada área y la operación económica de la empresa eléctrica. El presente trabajo propone una metodología para determinar los modos y efectos de falla e identificar la causa raíz de diferentes modos de falla en los transformadores de distribución. Se combinaron métodos cómo el análisis de criticidad, el de modos y efecto de fallas y el análisis causa raíz, utilizando herramientas estadísticas. Se aplicó la metodología tomando como caso de estudio el registro del control de operaciones de transformadores de distribución en el taller Planta Maceo, de la provincia de Ciego de Ávila durante el año 2022 identificando las cusas raíces dominantes en cada uno de los modos de fallas graves del transformador y brindando información fundamental para la toma de decisionesa las empresas de distribución de energía eléctrica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The transformer is a device of great importance in an electrical network, its reliability depends not only on the availability of electrical energy in a certain area, but also affects the economic operation of the electric company. The most common failures in a transformer can occur in different parts or components due to mechanical and electrical problems or thermal stress caused by different conditions, can eventually cause a short circuit and be catastrophic and costly. In the present work, a study of the most common failures that occur in the distribution transformer is carried out, taking as a case study the distribution transformer operations control record in the workshop Planta Maceo, in the province of Ciego de Avila during the year 2022. A methodology will also be used to determine the failure modes and the root cause of the failures in these distribution transformers, based on different analyses; which will allow perfecting the diagnosis of their technical condition to reduce the high failure rate of transformers and the increase of their useful life.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[análisis causa raíz, estado técnico, modos de falla]]></kwd>
<kwd lng="es"><![CDATA[transformadores de distribución]]></kwd>
<kwd lng="en"><![CDATA[root cause analysis, technical condition, failure modes]]></kwd>
<kwd lng="en"><![CDATA[distribution transformers]]></kwd>
</kwd-group>
</article-meta>
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