CR4 - Thread: Difference Between ES and FES

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timothyme Participant Join Date: May 2012 Posts: 4	Difference Between ES and FES 05/23/2012 2:42 AM
	Can anyone tell what the differences between ES and FES in a GIS? Thanks for your help.
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	Pathfinder Tags: ES FES GIS

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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing. Kettle's on. Posts: 19574 Good Answers: 469	#1 Re: Difference between ES and FES 05/23/2012 3:13 AM
	Without knowing what the abbreviations mean, the difference is 'F'. __________________ There was a time, not long ago, when people were smarter than their phones... (tips hat to CR4 user Harley.)
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timothyme Participant Join Date: May 2012 Posts: 4	#2 In reply to #1 Re: Difference between ES and FES 05/23/2012 3:32 AM
	Sorry, ES is "earthing switch" and FES is "fault making earthing switch". Thanks.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing. Kettle's on. Posts: 19574 Good Answers: 469	#3 In reply to #2 Re: Difference between ES and FES 05/23/2012 4:48 AM
	"GIS"? __________________ There was a time, not long ago, when people were smarter than their phones... (tips hat to CR4 user Harley.)
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RAMConsult Guru Join Date: May 2007 Location: NYC metropolitan area. Posts: 811 Good Answers: 100	#4 Re: Difference Between ES and FES 05/23/2012 5:09 PM
	An earthing switch is for safety grounding an already dead section of bus, a fault earthing switch can be closed while the bus is energized. From the web and ABB... http://www05.abb.com/global/scot/scot235.nsf/veritydisplay/a7ac155ec428b022c2256e53002d3aad/$file/34ojwn3gb_installation_and_operating.pdf "...These earthing switches are equipped with a snap action spring device which ensures an independent closing speed. They can make and withstand short-circuit currents from both feeding directions without a latching operating mechanism..." I assume that GIS means Gas Insulated System. __________________ Curious minds want to know, engineering minds get answers....
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amnakhan1245 Active Contributor Join Date: Jun 2012 Posts: 22	#5 Re: Difference Between ES and FES 06/07/2012 1:37 PM
	CR4 ADMIN: Deleted Post Spam: This post was deleted because it contained advertising outside the Commercial Space forum. Please review Section 14 of the CR4 Site FAQ about advertising.
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