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How much pole motor can be desion for 415 volt ,50 hz.Power
supply. in pratical condition .

Prakash veer singh

Answer Posted / uttam kumar sarkar

Motor pole dipenda upon Speed(N),Frequency(f).
Now we know the Syschronous Speed N=120f/P,
where P is No. of pole,
If synchronous Speed N=1500,
then P=120f/N, where,N=1500rpm,f=50.
P=(120*50)/1500
=4

So the No. of pole will be 4.


thanks to all
Uttam kumar Sarkar
email; engrutm@yahoo.com

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