On 06/15/2016 10:12 AM, Lennart Sorensen wrote: > On Tue, Jun 14, 2016 at 10:15:43PM -0400, James Knott via talk wrote: >> A few years ago, I read a book about power systems in Ontario. There >> were a few different frequencies, other than 25 & 60 Hz. There were >> even rotary converters (combination motor & alternator in one unit) to >> change the frequency. I seem to recall there was still one to convert >> to 25 Hz for industrial users in the Buffalo area. > Apparently there was 25Hz produced at Niagara for industrial users > until 2009. The cost to change all that equipment was considered too > high and not worth it. >
IIRC, it was produced at the plant upstream from the falls, which is now a museum. Also, 25 Hz power was still running the Fort Erie area, until 1966. https://en.wikipedia.org/wiki/Ontario_Hydro --- Talk Mailing List talk@gtalug.org https://gtalug.org/mailman/listinfo/talk