Pullmax wiring question...3 phase...

Ok so we have a european 440 Volt 3 phase motor on the pullmax and we need to wire it up for a north american style 208 volt 3 phase system. Wondering if switching the wires on the motor will work?? Any suggestions??

 

Depends on wether the motor is wired in the Star or Delta configuration and if you can get to the connections easily. I've forgotten a lot of this ****, and somebody here may know a whole lot more, but this link may help.

If you cant get to the connections, the only other option I can think of is a step up transformer.

http://www.patchn.com/index.php?option=com_content&task=view&id=42&Itemid=74

 

One of my nibblers was 440V and SMV in Sweden gave me a diagram to switch it to 220V. How many wires do you have? I think that the number of wires is the key.

I'll look through my stuff and get you the contact that I had in Sweden.

Do you have 3phase? or are you going to use a static/rotary converter or VFD. I run both of my nibblers on VFD's, and they can be had for a couple hunded dollars.

What is nice about VFD's, you can wire in a potentiometer and variably control the speed.

 

If the motor is dual voltage it will say so on the motor data plate. If it is 440/220, it's usually OK to run it on 208. The diagram to connect the motor leads properly will also be on the data plate.

 

The motor on my nibbler didn't give you an option on the data plate. I contacted SMV in Sweden and they gave me the following information:

To connect the motor (if you have 400 V AC):
o---o---o
o o o
/ / /
L1 L2 L3


To connect the motor (if you have 220 V):
o o o
/ / /
o o o
/ / /
L1 L2 L3

After switching the wiring and hooking up a VFD, it worked great.

Here is another source for wiring information:

<cite>bowlinengineering.net/Do***ents/motor-tutor.pdf</cite>

 

some of the european machines are 380v 3 phase,
Can you convert them to USA 220v single phase ?

Beaulieu

 

I think that you would need a step up transformer to get from 220V to 380V.

 

I think it depends on the motor.

I have a 3 speed 480 volt on my P20.

Ended up with a Acme step up converter to jump my 3PH 240 to 480 3PH.

 

Multiple speed motor are almost never dual voltage - takes way too many sets of windings. I say almost because I heard of one, but never saw one.