Cant quite read the va rating on the transformer, but more than likely the
transformer is just for all of the control circuitry. This would include any
pilot lights, coils for contactors, etc.I doubt that it is inteded for
anything else. When you say rewire the transformer, I am assuming that it is
on the primary side to convert you rew input voltage to the 220 volt you
have at your place. If you can successfully change the control transformer
primary to still have the same output it now requires, and rewire the motor
to accept 220 volt, you should be in good shape.


"Greg Deputy" wrote in message
...
Thanks in advance for any advice on my questions below.

I'm in the process of wiring up a new (to me) lathe, which is currently
set
up with a 7.5hp 3 phase 440v motor. It also has a coolant system, if that
makes any difference.

I have a new 220v circuit in place, and a 10hp phase converter. I'm under
the impression that the motor works at 220v as well as 440v with just a
wiring change, due to the motor placard on the lathe and from what the
seller told me.

What i'm unsure about is how the wiring is changed when going from 440v to
220v. I opened up the electrical panel and was at first somewhat worried
about all the 'stuff'' in there. Picture at

www.blastzone.com/newlathe/102_1645.jpg

After looking at it for a while I found what I believe needs to be changed
to go from 440v to 220v. The transformer, pictured at

www.blastzone.com/newlathe/102_1646.jpg

On the transformer face are 2 diagrams for how to wire it for 220v and
440v
(as seen in the picture above).

My question is this. Is re-wiring this transformer the only thing I need
to
change? What is going to be damaged if there's something else? I'm a
little hesitant to power it all up since i'm not 100% sure on what i'm
doing
here.

I did look inside where the motor itself is, but there isnt much to be
seen
the

www.blastzone.com/newlathe/102_1649.jpg

Also, the actual wiring point on the outside has some pretty small wires
compared to what the 200v circuit and wiring from the phase converter is,
which also has me wondering.

www.blastzone.com/newlathe/102_1655.jpg

I appreciate the help i've gotten here so far, and look forward to what
you
have to say. Thanks.

Greg Deputy
Bonney Lake, WA