3 ms·
There was 25 Hz infrastructure in Ontario until the 1950s https://www.lifebynumbers.ca/history/the-rise-and-fall-of-25-cycle-hz-electricity-in-ontario/ https:/
by applied_heat 2y ago
There was 25 Hz infrastructure in Ontario until the 1950s
https://www.lifebynumbers.ca/history/the-rise-and-fall-of-25-cycle-hz-electricity-in-ontario/ https://www.lifebynumbers.ca/history/the-rise-and-fall-of-25...
- cf100clunk 2y agoYep, the government had to go house-by-house, building-by-building replacing all electrically powered devices that could not be adapted. Thankfully it also happened early in the era of electronic devices.
- sidewndr46 2y agoit's substantially easier to run modern electronics off random frequency power than other stuff like an induction motor. A typical power supply is rated for 47 Hz- 63 Hz. But it'll happily run off almost anything higher than 10 hz and lower than 1000 hz. universal motors in particular do not care at all about frequency
- sidewndr46 2y agooh wow, 25 Hz was supplied to homes? I know New Orleans still has some pumps that run on some oddball frequency. It's part of the reason why they never work during the storms (when you need them). The "grid" is just a set of colocated generation sets
- throw0101d 2y agoFrom the above link: Sir Adam Beck #1 ten 25 Hz generating units were converted to 60 Hz or modified as follows: Units 9 and 10 to 60 Hz in 1956 Unit 3 to 60 Hz in 1970 Unit 4 to 60 Hz in 1984 Unit 5 to 60 Hz in 1985 Unit 8 to 60 Hz in 1990 Unit 6 to 60 Hz in 1996 Unit 7 to 60 Hz in 2009 2009! Talk about legacy support. * https://en.wikipedia.org/wiki/Sir_Adam_Beck_Hydroelectric_Generating_Stations https://en.wikipedia.org/wiki/Sir_Adam_Beck_Hydroelectric_Ge... * https://www.opg.com/stories/opgs-sir-adam-beck-i-hydro-station-celebrates-a-century-of-clean-power/ https://www.opg.com/stories/opgs-sir-adam-beck-i-hydro-stati...