I always thought it was 60hz for ever!, but (googling) 25 -> 60 in 1949+/-, (in canada) you're no spring chicken!! :) -tl On Tue, Jun 14, 2016 at 9:56 PM, Peter Hiscocks via talk <talk@gtalug.org> wrote:
Modern motor controllers can be quite tolerant of significant voltage variation. However, I doubt they're changing the voltage.
I'm not a power systems engineer, but it could be that changing the supply voltage would be a matter of changing taps on a transformer.
As for flag day - I remember as a kid when there was a changeover to 60Hz in the hydro system. (Was it 20Hz before that? Something much lower.) Anyway, every electric motor in the house had to be changed. Must have cost a fortune.
P.
-- Peter Hiscocks Syscomp Electronic Design Limited, Toronto http://www.syscompdesign.com USB Oscilloscope and Waveform Generator 647-839-0325
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