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	<title>CsanyiGroup &#187; high impedance</title>
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		<title>ABB Feeder Protection REF615 ANSI</title>
		<link>http://www.csanyigroup.com/abb-feeder-protection-ref615-ansi</link>
		<comments>http://www.csanyigroup.com/abb-feeder-protection-ref615-ansi#comments</comments>
		<pubDate>Wed, 16 Jun 2010 20:31:37 +0000</pubDate>
		<dc:creator>ecsanyi</dc:creator>
				<category><![CDATA[Protection Relays]]></category>
		<category><![CDATA[Technical Articles]]></category>
		<category><![CDATA[abb]]></category>
		<category><![CDATA[breaker]]></category>
		<category><![CDATA[bus]]></category>
		<category><![CDATA[discontinuity]]></category>
		<category><![CDATA[failure]]></category>
		<category><![CDATA[fault]]></category>
		<category><![CDATA[feeder]]></category>
		<category><![CDATA[goose]]></category>
		<category><![CDATA[high impedance]]></category>
		<category><![CDATA[instantaneous]]></category>
		<category><![CDATA[negative sequence]]></category>
		<category><![CDATA[overcurrent]]></category>
		<category><![CDATA[phase]]></category>
		<category><![CDATA[protection]]></category>
		<category><![CDATA[ref]]></category>
		<category><![CDATA[ref615]]></category>
		<category><![CDATA[relay]]></category>
		<category><![CDATA[thermal overload]]></category>
		<guid isPermaLink="false">http://www.csanyigroup.com/?p=4508</guid>
		<description><![CDATA[The REF615 is powerful, most advanced and simplest feeder protection relay in its class, perfectly offering time and instantaneous overcurrent, negative sequence overcurrent, phase discontinuity, breaker failure and thermal overload protection. The relay also features optional high impedance fault (HIZ) and sensitive earth fault (SEF) protection for grounded and ungrounded distribution systems. Also, the relay [...]]]></description>
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		<title>Grounded or Ungrounded Systems</title>
		<link>http://www.csanyigroup.com/grounded-or-ungrounded-systems</link>
		<comments>http://www.csanyigroup.com/grounded-or-ungrounded-systems#comments</comments>
		<pubDate>Sun, 22 Nov 2009 16:02:15 +0000</pubDate>
		<dc:creator>ecsanyi</dc:creator>
				<category><![CDATA[Energy And Power]]></category>
		<category><![CDATA[Power Substations]]></category>
		<category><![CDATA[Technical Articles]]></category>
		<category><![CDATA[conductor]]></category>
		<category><![CDATA[detector]]></category>
		<category><![CDATA[grounded]]></category>
		<category><![CDATA[grounding]]></category>
		<category><![CDATA[high impedance]]></category>
		<category><![CDATA[NEC section]]></category>
		<category><![CDATA[protect]]></category>
		<category><![CDATA[protection]]></category>
		<category><![CDATA[safety]]></category>
		<category><![CDATA[system]]></category>
		<category><![CDATA[ungrounded]]></category>
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		<description><![CDATA[Ungrounded systems may provide greater continuity of operations in the event of a ground fault. However, the second fault will most likely be more catastrophic than a grounded system fault. Whenever ungrounded systems are used in a facility, the maintenance personnel should receive training in how to detect and troubleshoot the first ground on an [...]]]></description>
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