Motors

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Anonymous Poster #1	Motors 09/17/2015 12:26 AM
	how can set a overload relay for any motor >5h.p
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IdeaSmith Guru Join Date: Mar 2012 Location: Out of your mind! Not in sight! Posts: 4424 Good Answers: 108	#1 Re: motors 09/17/2015 1:10 AM
	Read the manual! Learn how to search the internet! __________________ Common Sense Dictates
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#2 Re: motors 09/17/2015 3:41 AM
	You can't.
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Crabtree Guru Join Date: Jul 2007 Location: Commissariat de Police, Nouvions, occupied France, 1942. Posts: 2599 Good Answers: 77	#3 Re: motors 09/17/2015 4:44 AM
	If you don't know how, then get someone else to show you. __________________ Good moaning!
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JRaef Guru Join Date: Sep 2006 Location: California, USA, where the Godless live next door to God. Posts: 4665 Good Answers: 804	#4 Re: motors 09/17/2015 5:49 AM
	The only valid answer that is inclusive of "any" motor overload, is RTFM, Read The Factory Manual. Some have you factor in a pickup point, others do it for you. __________________ All I every really wanted to be, was... A LUMBERJACK!.
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Fredski Guru Join Date: Feb 2011 Posts: 7025 Good Answers: 207	#5 In reply to #4 Re: motors 09/17/2015 8:07 AM
	factory??
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JRaef Guru Join Date: Sep 2006 Location: California, USA, where the Godless live next door to God. Posts: 4665 Good Answers: 804	#6 In reply to #5 Re: motors 09/17/2015 10:21 AM
	Trying to be polite... __________________ All I every really wanted to be, was... A LUMBERJACK!.
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kvsridhar Guru Join Date: Sep 2009 Location: Temporarily at Ashburn, VA Posts: 2744 Good Answers: 164	#7 Re: Motors 09/18/2015 9:39 PM
	Amplifying your question - how to set (a) when the starter is DOL (b) when it is Star-delta with the relay in the line and (c) when it is star-delta with the relay being within the delta (d) when the relay is as per IEC or NEMA with a 1.15 service factor.... If someone answers, you will have a wealth of (useless) information. Eliminates the need to post on CR4 again and again. __________________ Nothing worthwhile can ever be taught, it can only be learnt.
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Simon Wan Guru Join Date: Apr 2007 Posts: 577 Good Answers: 10	#8 Re: Motors 09/25/2015 12:36 AM
	Your question is un-understandable. __________________ Management is just like a bunch of Monkey sitting on a tall tree. Some climb to the highest branch and some at the lowest branch. The highest Monkey look down and see a lot of happy faces but the lower Monkey looks up and see nothing but all the....
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Electrikals Member Join Date: Nov 2015 Posts: 7	#9 Re: Motors 11/04/2015 1:45 AM
	The procedure for setting depends on the relay type. Pls specify which type of relay you are using. Lets say for 3-ph 5hp motor running on 420V ac supply, it takes around 9A current on full load, the relay rating has to be set around 11A for overload taking into 10-15% of normal current.
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Crabtree (1); Electrikals (1); Fredski (1); IdeaSmith (1); JRaef (2); kvsridhar (1); lyn (1); Simon Wan (1)

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