> 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 --- Talk Mailing List talk@gtalug.org https://gtalug.org/mailman/listinfo/talk
