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rockraiden
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Engineering Fields - Power Engineering - New Member

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Internal Resistance of 3 Phase Motors Level

11/29/2010 2:55 AM

could somebody help us out...we are looking for sites and links that would aide us regarding internal resistance of 3 phase motors...from 1 hp to 600 hp..any useful sites/links would be very much appreciated..

thanks....

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Anonymous Poster
#1

Re: internal resistance of 3 phase motors lv level

11/29/2010 6:15 AM

is it ok if i give you the details of motor I have??......
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rockraiden
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#4
In reply to #1

Re: internal resistance of 3 phase motors lv level

11/29/2010 8:37 PM

it'll be much appreciated..we just wanted to have references to we could go on with a case study..it might not be the exact..but it could be some kind of guide..

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PWSlack
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#2

Re: Internal Resistance of 3 Phase Motors Level

11/29/2010 12:28 PM

If all else fails, contact the manufacturer.

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JRaef
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#3

Re: Internal Resistance of 3 Phase Motors Level

11/29/2010 2:13 PM

I doubt there is anything approaching a "universal" formula or reference guide at all. It is going to vary from one manufacturer to another, even from one motor design to another from the same mfr.

Maybe you could tell us why you want to know this.

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Tornado
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#5

Re: Internal Resistance of 3 Phase Motors Level

11/29/2010 8:46 PM

You might get somewhat close by considering the FLA times the multiplier corresponding to the starting current code letter, and then using Ohm's Law.

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