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	<title>Ver Pangonilo - Filipino Engineer &#187; Harmonics</title>
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	<description>Professional Electrical Engineer</description>
	<lastBuildDate>Tue, 07 Feb 2012 18:33:36 +0000</lastBuildDate>
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		<title>Transformer K-factor Rating and Variable Speed Drives</title>
		<link>http://s.pangonilo.com/index.php/2011/07/transformer-k-factor-rating-and-variable-speed-drives.html</link>
		<comments>http://s.pangonilo.com/index.php/2011/07/transformer-k-factor-rating-and-variable-speed-drives.html#comments</comments>
		<pubDate>Wed, 13 Jul 2011 03:24:42 +0000</pubDate>
		<dc:creator>Ver</dc:creator>
				<category><![CDATA[Design]]></category>
		<category><![CDATA[Harmonics]]></category>
		<category><![CDATA[harmonics]]></category>
		<category><![CDATA[Standards]]></category>
		<category><![CDATA[VSD]]></category>

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		<description><![CDATA[In this article, I have discussed the difference between a conventional transformer and a K-factor rated transformer. In modern day plants, Variable Speed Drives (VSD) are widely used. The project I am working with now have more that a hundred units VSD ranging from fractional kilowatt up to several hundred kilowatts. Just imagine how much [...]]]></description>
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		<title>Phase Shifting Transformers to Cancel Harmonics</title>
		<link>http://s.pangonilo.com/index.php/2010/03/phase-shifting-transformers-to-cancel-harmonics.html</link>
		<comments>http://s.pangonilo.com/index.php/2010/03/phase-shifting-transformers-to-cancel-harmonics.html#comments</comments>
		<pubDate>Wed, 17 Mar 2010 09:23:17 +0000</pubDate>
		<dc:creator>Ver</dc:creator>
				<category><![CDATA[Design]]></category>
		<category><![CDATA[Harmonics]]></category>
		<category><![CDATA[harmonics]]></category>
		<category><![CDATA[phase shifting transformer]]></category>

		<guid isPermaLink="false">http://s.pangonilo.com/?p=1182</guid>
		<description><![CDATA[When there are several non-linear loads of equal ratings in a power systems, the use of phase shifting transformers could help cancel harmonics. After harmonic filters, phase shifting transformers are one of the simplest solution to reduce harmonics in a power system. To provide an example, let us assume that there are six equal size [...]]]></description>
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