control applications

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sustainergy Active Contributor Join Date: Nov 2007 Location: Sydney, Australia Posts: 23	control applications 10/23/2008 8:15 PM
	Hi guys, What's the best way to sense electrical current for control applications? Thanks
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	Pathfinder Tags: applications control current electric

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Kilgore Trout Power-User Join Date: Jun 2008 Posts: 440 Good Answers: 7	#1 Re: control applications 10/23/2008 8:54 PM
	Pretty vague question-- Current transformers and an overload relay. Current transformers and an analog input card for a PLC. Current transformers and a digital or analog readout. ???? What is it that you want to do???? __________________ Those who believe in telekinetics, raise my hand --Kurt Vonnegut Jr.
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Substation 15 Active Contributor Join Date: Oct 2008 Location: Surat, India. Posts: 14	#2 Re: control applications 10/24/2008 2:18 AM
	Dear, Sensing current in control applications?? Why?? Be specific in your question. Kind regards, __________________ Stay foolish to learn..
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garth Guru Join Date: Sep 2006 Location: NSW Australia Posts: 1101 Good Answers: 23	#4 Re: control applications 10/25/2008 10:07 AM
	Try using Hall effect transducers there is a massive range covering AC & DC from milliamps to hundreds of amps. Also current shunts will give you millivolt output for a given amount of amps passing through them. __________________ Dont get on to the roundabout if you dont know how to get off
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Snave Power-User Join Date: Oct 2007 Location: S. California, USA Posts: 279 Good Answers: 12	#5 Re: control applications 10/27/2008 11:53 AM
	For a precise measurement of DC current, I use a current shunt.
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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, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#6 Re: control applications 11/03/2008 9:51 AM
	How about an ammeter? __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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Anonymous Poster (1); garth (1); Kilgore Trout (1); PWSlack (1); Snave (1); Substation 15 (1)

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