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280V motor on 230V circuit
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David Lesher
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uWave ovens, was: 280V motor on 230V circuit
(Michael Moroney) writes:
Rather, it's the ready market of consumer appliances that would take
advantage of them. That would require many houses to have them.
Yes the inability to go to the nearest WallyWorld and buy a 240V 4kW
cooker/microwave/whatever is a big problem. European appliance could be
got, but I'd worry about anything with a motor (50 Hz), clock (do their
electronic clocks operate off the line frequency like some in the US?),
microwaves (don't they use frequency-dependent constant voltage
transformers?).
I don't know if microwave ovens still use ferroresonant transformer
supplies. I'd heard that they'd moved to switchers but have not
worked on any with same. It would make sense: good transformer iron
& copper ain't cheap... and a switcher would also save shipping weight.
And yes, the clock would run fast.
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