Old E.E. has forgotten his power chops; 'need some opinions/options on crossing an old/failed 1/2 HP 277v (1650 rpm) ac motor: This unit - from an aged UPS blower subsystem - looks to have used a leg of the 408 for power, yet now that it's failed...and not the capacitor, unfortunately...is apparently irreplaceable at a sufficiently high rpm. There are 1075 rpm units in abundance, but I don't want to suffer the CFM drop associated with the reduced speed.
'Any chance a single-phase 208v unit would survive at the 30+% increased voltage - stop laughing! - or am I relegated to a 5-6A buck-boost xformer to make a 208v motor happy? I'm surprised that none of the manufacturers cannot cross to the faster speed requirement, but it seems that I can either have 277v (1075rpm) or 1625rpm (208v), but not both!
Thanks Paul
P.S. - were it not an emergency, I'd already have the frame to my local motor rewinding shop...yet that may be in the cards nonetheless...