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> <channel><title>CsanyiGroup &#187; Protection Relays</title> <atom:link href="http://www.csanyigroup.com/category/strucni-tekstovi/protection-relays/feed" rel="self" type="application/rss+xml" /><link>http://www.csanyigroup.com</link> <description>Electrical engineering portal</description> <lastBuildDate>Tue, 24 Apr 2012 07:43:28 +0000</lastBuildDate> <language>en</language> <sy:updatePeriod>hourly</sy:updatePeriod> <sy:updateFrequency>1</sy:updateFrequency> <generator>http://wordpress.org/?v=3.0.3</generator> <item><title>Line Protection With Distance Relays</title><link>http://www.csanyigroup.com/line-protection-with-distance-relays</link> <comments>http://www.csanyigroup.com/line-protection-with-distance-relays#comments</comments> <pubDate>Mon, 01 Nov 2010 17:59:17 +0000</pubDate> <dc:creator>ecsanyi</dc:creator> <category><![CDATA[Protection Relays]]></category> <category><![CDATA[Technical Articles]]></category> <category><![CDATA[distance]]></category> <category><![CDATA[ground]]></category> <category><![CDATA[impedance]]></category> <category><![CDATA[line]]></category> <category><![CDATA[mho]]></category> <category><![CDATA[overcurrent]]></category> <category><![CDATA[phase-fault]]></category> <category><![CDATA[protection]]></category> <category><![CDATA[reactance]]></category> <category><![CDATA[relaying]]></category> <category><![CDATA[relays]]></category> <category><![CDATA[resistance]]></category> <guid
isPermaLink="false">http://www.csanyigroup.com/?p=5785</guid> <description><![CDATA[Distance relaying should be considered when overcurrent relaying is too slow or is not selective. Distance relays are generally used for phase-fault primary and back-up protection on subtransmission lines, and on transmission lines where high-speed automatic reclosing is not necessary to maintain stability and where the short time delay for end-zone faults can be tolerated. [...]]]></description> <wfw:commentRss>http://www.csanyigroup.com/line-protection-with-distance-relays/feed</wfw:commentRss> <slash:comments>0</slash:comments> </item> <item><title>Field Test Procedure For Protective Relays</title><link>http://www.csanyigroup.com/field-test-procedure-for-protective-relays</link> <comments>http://www.csanyigroup.com/field-test-procedure-for-protective-relays#comments</comments> <pubDate>Thu, 15 Jul 2010 17:33:40 +0000</pubDate> <dc:creator>ecsanyi</dc:creator> <category><![CDATA[Protection Relays]]></category> <category><![CDATA[Technical Articles]]></category> <category><![CDATA[auxiliary]]></category> <category><![CDATA[field test]]></category> <category><![CDATA[inspection]]></category> <category><![CDATA[overcurrent]]></category> <category><![CDATA[procedure]]></category> <category><![CDATA[protective]]></category> <category><![CDATA[relays]]></category> <category><![CDATA[settings]]></category> <category><![CDATA[testing]]></category> <guid
isPermaLink="false">http://www.csanyigroup.com/?p=5100</guid> <description><![CDATA[1. Relay Settings At all new protective relay installations, the relays should be adjusted in accordance with the settings given in the relay data sheets, after which, tests should be made to determine if the actual operating characteristics check with the adjustments made. The Denver Office, Facilities Engineering Branch, must be advised of field changes [...]]]></description> <wfw:commentRss>http://www.csanyigroup.com/field-test-procedure-for-protective-relays/feed</wfw:commentRss> <slash:comments>1</slash:comments> </item> <item><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> <wfw:commentRss>http://www.csanyigroup.com/abb-feeder-protection-ref615-ansi/feed</wfw:commentRss> <slash:comments>2</slash:comments> </item> <item><title>Protection relays &#8211; important informations</title><link>http://www.csanyigroup.com/protection-relays-important-informations</link> <comments>http://www.csanyigroup.com/protection-relays-important-informations#comments</comments> <pubDate>Mon, 14 Sep 2009 21:29:10 +0000</pubDate> <dc:creator>ecsanyi</dc:creator> <category><![CDATA[Protection Relays]]></category> <category><![CDATA[Technical Articles]]></category> <category><![CDATA[ansi]]></category> <category><![CDATA[current transformer]]></category> <category><![CDATA[electromechanical]]></category> <category><![CDATA[overcurrent]]></category> <category><![CDATA[protection relay]]></category> <category><![CDATA[relay]]></category> <category><![CDATA[sepam]]></category> <category><![CDATA[solid state]]></category> <guid
isPermaLink="false">http://www.csanyigroup.com/?p=1088</guid> <description><![CDATA[The successful operation of an MV distribution system depends on the proper selection and setting of switchgear relays. Protective relays are arguably the least understood component of medium voltage (MV) circuit protection. In fact, somebelieve that MV circuit breakers operate by themselves, without direct initiation by protective relays. Others think that the operation and coordination [...]]]></description> <wfw:commentRss>http://www.csanyigroup.com/protection-relays-important-informations/feed</wfw:commentRss> <slash:comments>4</slash:comments> </item> <item><title>ANSI standards for protection devices</title><link>http://www.csanyigroup.com/ansi-standards-for-protection-devices</link> <comments>http://www.csanyigroup.com/ansi-standards-for-protection-devices#comments</comments> <pubDate>Sun, 13 Sep 2009 14:13:10 +0000</pubDate> <dc:creator>ecsanyi</dc:creator> <category><![CDATA[ANSI Standards]]></category> <category><![CDATA[Protection Relays]]></category> <category><![CDATA[Technical Articles]]></category> <category><![CDATA[ansi]]></category> <category><![CDATA[breaker]]></category> <category><![CDATA[earth fault]]></category> <category><![CDATA[overpower]]></category> <category><![CDATA[phase overcurrent]]></category> <category><![CDATA[protection]]></category> <category><![CDATA[relay]]></category> <category><![CDATA[standard]]></category> <category><![CDATA[thermostat]]></category> <category><![CDATA[unbalance]]></category> <category><![CDATA[underpower]]></category> <guid
isPermaLink="false">http://www.csanyigroup.com/?p=1001</guid> <description><![CDATA[In the design of electrical power systems, the ANSI Standard Device Numbers denote what features a protective device supports (such as a relay or circuit breaker). These types of devices protect electrical systems and components from damage when an unwanted event occurs, such as an electrical fault. ANSI numbers are used to identify the functions [...]]]></description> <wfw:commentRss>http://www.csanyigroup.com/ansi-standards-for-protection-devices/feed</wfw:commentRss> <slash:comments>4</slash:comments> </item> </channel> </rss>
