why in america the supply frequency is applied as 60 HZ.
but in india we use 50 HZ.



why in america the supply frequency is applied as 60 HZ. but in india we use 50 HZ...

Answer / eee16247

becoz the speed of alternator in u.s is 3600r.p.m
whereas in india is 3000r.p.m
F=(Ns*p)/120
mostly we prefer 2 pole machine,so p=2

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