I've sifted and sorted through all the information that my brain can hold.
I think I have a grasp of what's needed to power this on 220 3 phase.
Give me reassurance, please.
1) The motor tag confirms 220/440 is an option. Simple enough.
2) I checked the starting coil/contactor to confirm it was 440, and needs replaced.
3) I checked the overload heaters and confirmed that H1367 is undersized for 220, and needs replaced
by a H1372B or H1373B
**Note also my shop is supplied with 3ph via a 15hp VFD rated at 40 amps. 13.2 should not be a problem considering the
derating for single phase input. But, I may have read that these old motors prefer RFC over VFD's...
Any problems feeding it with a modern AC drive? Should I use L1 and L3 as real phases, and L2 for the created?
Thanks in advance,
Luke
I think I have a grasp of what's needed to power this on 220 3 phase.
Give me reassurance, please.
1) The motor tag confirms 220/440 is an option. Simple enough.
2) I checked the starting coil/contactor to confirm it was 440, and needs replaced.
3) I checked the overload heaters and confirmed that H1367 is undersized for 220, and needs replaced
by a H1372B or H1373B
**Note also my shop is supplied with 3ph via a 15hp VFD rated at 40 amps. 13.2 should not be a problem considering the
derating for single phase input. But, I may have read that these old motors prefer RFC over VFD's...
Any problems feeding it with a modern AC drive? Should I use L1 and L3 as real phases, and L2 for the created?
Thanks in advance,
Luke