Agreed 3-phase would not require a starter capacitor, but a 440V single-phase motor would. As I just replied to Harry, it seems odd that a low-power lathe would use a 440V motor. A 240V AC capacitor is rated to handle the peaks associated with that voltage.
By the look of the wiring it was made of bits which happened to be around. It's an Emco Unimat lathe and would originally have used a sewing machine motor.
Its not much different from normal operation - just the alternate polarity cycle will come a bit quicker.
(note many are setup with a bleed resistor to drain off any charge after power down anyway)
He did, in effect. The photo in the original post included a view of the cap label.
I cant see the point in unbalancing a three phase network with a single motor across two phases. I doubt there were any ever.
It might have dome, but it was gone before I could read it.
Imgur is now effecteiively ususable
Thanks to all for the replies it has been very useful.
fwliw I'm using ff, it reports itself as 1.0 but obviously isn't, so dunno what version.
Ss's google link didn't work either, 404.
NT
The Pale Moon forum is working again. FYI:
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