how interposing ct worked

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Anonymous Poster	how interposing ct worked 02/14/2008 9:07 AM
	how the interposing ct worked and what is need to use this ct
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Electroman Guru Join Date: Jul 2006 Location: Dunstable, England Posts: 2821 Good Answers: 45	#1 Re: how interposing ct worked 02/14/2008 9:44 AM
	You will need to be a little more specific about what you are asking... explain 'interposing' and 'ct'? John. __________________ A little knowledge is a dangerous thing - Googling is far worse!
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ramvinod Guru Join Date: Jun 2007 Location: chennai,India Posts: 592 Good Answers: 19	#2 Re: how interposing ct worked 02/16/2008 9:58 AM
	The interposin CTs are used for Power transformer Differential Protection circuit.In a delta/Star Power tranformer, the cts will be connected star and delta formation, for eliminating Zero seqence current on star side.There will be mismatch of secondary current , to maintain equilibrium, interposing Cts will be connected to Delta formed CTs. But now a days for numerical relays these interposing CTs are not used and current mismatch is offset in software settings of numerical relays. __________________ Ramesh,Freelance Electrical/automation Consultant
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biswanath.das Power-User Join Date: Oct 2006 Location: Kolkata, India Posts: 447	#3 In reply to #2 Re: how interposing ct worked 02/21/2008 10:26 PM
	Actually they converts AC parameter to DC parameter in numerical relay. __________________ BNDas
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Anonymous Poster	#4 In reply to #2 Re: how interposing ct worked 06/05/2009 9:33 AM
	Will you please give some detail how calculations are made for interposing CTs
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Anonymous Poster (1); biswanath.das (1); Electroman (1); ramvinod (1)

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