10 Dec
2004
10 Dec
'04
10:24 a.m.
Jules Richardson wrote:
Out of interest, why do we use 50Hz power in the UK
and 60Hz in the US?
(I don't mean why are they different, I mean why those numbers)
I saw yesterday a claim that the 60Hz in the US was a Tesla invention,
but the info didn't elaborate on why he chose that figure if so...
It has to deal with big heavy rotating machines, so that works out to
3000 rpm in the UK and 3600 rpm in the USA for a typical motor.
What telsa did invent was a better electric motor.
Ben.