<?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>S1815-59012019000200094</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización de variaciones de tensión de corta duración en circuitos de distribución]]></article-title>
<article-title xml:lang="en"><![CDATA[Characterization of Short-Duration Voltage Variations on distribution networks]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[HerreraCasanova]]></surname>
<given-names><![CDATA[Reinier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[MarreroRodríguez]]></surname>
<given-names><![CDATA[Lester Julio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de Las Villas  ]]></institution>
<addr-line><![CDATA[ Santa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Concepción  ]]></institution>
<addr-line><![CDATA[ Concepción]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<volume>40</volume>
<numero>2</numero>
<fpage>94</fpage>
<lpage>102</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1815-59012019000200094&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1815-59012019000200094&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1815-59012019000200094&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En los últimos años se ha producido de manera acelerada la introducción de equipos de tecnología digital avanzada en los sectores residencial, comercial e industrial, lo que garantiza una mayor automatización de los procesos y calidad de vida del hombre. Sin embargo, la operación eficiente de estos dispositivos manifiesta alta dependencia de la calidad de la energía eléctrica, por lo que resulta indispensable para evitar altas pérdidas monetarias el chequeo sistemático de las redes de distribución. En el trabajo se caracteriza el comportamiento de parámetros discretos de calidad de la energía en circuitos de distribución, específicamente sags y swells. Para ello se emplean curvas de tolerancia y diferentes herramientas estadísticas. Son utilizadas como ejemplo las lecturas recopiladas durante 2016 en el nodo 1200 de Sagua La Grande, provincia Villa Clara. Los resultados obtenidos reflejan la presencia de variaciones de tensión nocivas para equipos sensibles.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Over the last years it has been producing an accelerated introduction of advanced digital technology devices in the residential, commercial and industrial sectors, which has brought a better performance of process and quality of human life, but, at the same time, it has affected the electric power quality. These sectors obtain the electric energy from distribution networks, so it is essential to check them systematically to avoid high monetary losses. In this paper, the characterization of the behavior of power quality discrete parameters is done, specifically the case of sags and swells. To achieve that, a set of statistical techniques and the tolerance curves are employed. These methods are applied to the measurements at the 1200 node placed in Sagua La Grande municipality, in Villa Clara province. The results show the presence of dangerous voltage variations for sensible equipment.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Variaciones de tensión de corta duración]]></kwd>
<kwd lng="es"><![CDATA[calidad de la energía]]></kwd>
<kwd lng="es"><![CDATA[redes de distribución]]></kwd>
<kwd lng="es"><![CDATA[curvas de tolerancia]]></kwd>
<kwd lng="en"><![CDATA[Short-Duration Voltage Variations]]></kwd>
<kwd lng="en"><![CDATA[power quality]]></kwd>
<kwd lng="en"><![CDATA[distribution networks]]></kwd>
<kwd lng="en"><![CDATA[tolerance curves]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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