|Forum topic by srzsrz||posted 05-01-2013 06:07 PM||2555 views||0 times favorited||21 replies|
05-01-2013 06:07 PM
A Maggi power feeder showed up on local craigslist for a very reasonable price… but it comes with a funny motor. More specifically, it’s an IEC (metric) dual-speed 1hp 440V 3ϕ Dahlander (YY/Δ) motor. I understand that this particular type of motor is common on European equipment and cannot readily be rewired for a different voltage.
I think I figured out how to deal with this, but it’s all complex enough, and new enough to me, that I’d really appreciate if somebody could check to make sure I’ve understood it.
Looking around the internet, it seems that I need
I understand that the last option is supposedly not very good for the motor, and that it’s going to require understanding the possibly rather complex Dahlander 2-stage starter and its wiring, and that one really ought to get some sort of 1ϕ→3ϕ converter, which could be
Furthermore, in my understanding…
So… am I missing something? What do other people do to run 440V/3ϕ motors that cannot be rewired?
It seems that even if I manage to cobble this together from used parts, I’ll spend about as much on the power supply as on the tool. But given the price of the tool new and used, that might actually make sense, and besides, I’d end up with a source of 440V/3ϕ power allowing me to operate future craigslist acquisitions that nobody else wants because they come with such wacky motors…