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shagungarg
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Join Date: Jun 2011
Posts: 12

Pull Out Torque (POT) of Induction Motors

05/02/2012 7:13 AM

hi!!!

How do we select the value of POT?

Is the value of inductn motor POT depends on motor's application e.g. for lifting, for motion ????
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redfred
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Engineering Fields - Electrical Engineering - Been there, done that. Engineering Fields - Control Engineering - New Member

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#1

Re: Pull out torque (POT) of induction motors

05/02/2012 8:48 AM

Of course the selection of any motor should depend on the job that motor should accomplish. At the same time we've all been in the situation where time and other resources are limited so we must settle for what components and funding are readily available.

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RAMConsult
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#2

Re: Pull Out Torque (POT) of Induction Motors

05/02/2012 10:30 AM

Time to attend the University of Google...

Check out figure 11 in this paper:

http://ww1.microchip.com/downloads/en/appnotes/00887a.pdf

It's the maximum torque that the motor can develop without an abrupt drop in speed. You select it by superimposing the load's speed-torque curve on the motor's speed-torque curve. If the load torque (including the effects of load inertia) is ever greater than the motor's developed torque at any speed, the motor will not be capable of accelerating the load above that speed.

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