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It is from Electric Machines by Charles Hubert 2nd Edition.

Problem 4-4 is attached.
It is from Electric Machines by Charles Hubert 2nd Edition.
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Electrical Engineering - 8369609.doc

A) Given Shaft speed at rated load is 1775 and slip speed is 25 r/m
Therefore Synchronous speed = 1775 + 25 = 1800 r/m
We know
f = PN/120 P = (60x120)/1800 P= 4 Therefore no. Of poles is 4.
B) Slip...

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