Induction Motor

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nitihravate Participant Join Date: Jul 2012 Posts: 2	Induction Motor 08/13/2012 7:35 AM
	I require one 3 phase induction motor of 2HP (4pole). Meanwhile i have found one motor in spare of 2HP (2pole). can i used 2 pole motor of same hp in place of 4 pole motor? what electrical parameters will get affected?
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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	#1 Re: Induction motor 08/13/2012 8:22 AM
	It depends on whether the mechanical load can hack it. A 2-pole motor runs at a higher speed. Most loads' torque requirements increase with speed. Power is the product of the torque and the speed. So if the 4 pole motor was running close to its overload trip setting, then the trip will probably operate with the 2-pole one. However, it cannot be seen from here. __________________ "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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bigg Guru Join Date: Jun 2010 Posts: 1296 Good Answers: 104	#2 Re: Induction Motor 08/13/2012 10:07 AM
	I think you need to consider the mechanical side of this. I can't think of any device which will accept a driver of twice the speed and half the torque. Unless it's belt or gear driven, in which case sheaves, belts, and/or gear boxes will have to be replaced.
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