Answer / nilkanth tailor

bY KEEPING FREQUENCY CONSTANT, THIER IS ONLY ONE WAY TO
INCREASE OR DECRASE THE SPEED...SUPPOSE WE HAVE f=50Hz and
N=9000...thean no pole equlas to P=120*f/N...but we got
answer is 0.66pole which is not possible...so i think we
have to incraese freq to get speed high...up to 9000...

Answer / meenakshi

u gotta increase the frequency from 50Hz to greater than
150Hz. am telling for 2 pole.but i dont think this is
practically possible.

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