Hi everyone, I have been lurking around here for the past few months reading up on the Haas-Kamp welder conversion after having purchased a Cigweld Transmig 330 welder at an auction for the grand ole price of $20. I knew it was 3 phase at the time and did not know if there was any way I could convert it to run off single phase power, but for $20 I thought I would take the chance.
I have read just about every thread I could find a dozen times over trying to understand the process as much as possible, so I could apply it to my welder. I think I've come to the point now where I need to ask a few questions before I jump in and get it done.
So I live in Australia and need the welder to run off 240v single phase power. It is designed to run off 220/380/415V. My model is the remote one - due to the remote wire feeder. Here are the specs:
Inside Electronics
The welder isn't as old as a lot of the other conversions performed and has a few extra basic electronics inside, including the remote wire feeder. From what I can tell, these all run off a single phase and only need to have a jumper set to 220/380/415V. I plan to set it to the 220V jumper.
Circuit Diagram
Below is the original circuit diagram, and a new circuit diagram that I modified based on what I believe needs to be done to run the welder off single phase.
NEW
OLD
So I feel confident with the adjustments I've made to the circuit diagram, however I have no background in any of this, and only weld as a hobby so I really need someone to pull me into line, or confirm for me what I'm planning is correct.
Capacitor Value
I calculated the total value of the capacitors required to be about 80uF. This doesn't seem right. It's nowhere near the value any of the other conversions required. Can someone please check my calculations?
C=(21/3)/2*3.14*60*240
C=7/90432
C=77.4uF (Round up to 80uF)
So would this mean that I need 40uF either side of the centre transformer?
Input requirements
This is the part that confuses me. Once the conversion happens, what will be the input electricity requirements to run the welder without any issue? Obviously 240V, but will the amps required be those shown in the machine specs under 220V? Should I make sure to use to 25A outlet on a 40A circuit breaker?
These may seem like basic questions, but I hope someone can help me if you are able to.
I plan to post the instructions once I can confirm the conversion was successful.
Thank you for your help!
Sam
I have read just about every thread I could find a dozen times over trying to understand the process as much as possible, so I could apply it to my welder. I think I've come to the point now where I need to ask a few questions before I jump in and get it done.
So I live in Australia and need the welder to run off 240v single phase power. It is designed to run off 220/380/415V. My model is the remote one - due to the remote wire feeder. Here are the specs:
Inside Electronics
The welder isn't as old as a lot of the other conversions performed and has a few extra basic electronics inside, including the remote wire feeder. From what I can tell, these all run off a single phase and only need to have a jumper set to 220/380/415V. I plan to set it to the 220V jumper.
Circuit Diagram
Below is the original circuit diagram, and a new circuit diagram that I modified based on what I believe needs to be done to run the welder off single phase.
NEW
OLD
So I feel confident with the adjustments I've made to the circuit diagram, however I have no background in any of this, and only weld as a hobby so I really need someone to pull me into line, or confirm for me what I'm planning is correct.
Capacitor Value
I calculated the total value of the capacitors required to be about 80uF. This doesn't seem right. It's nowhere near the value any of the other conversions required. Can someone please check my calculations?
C=(21/3)/2*3.14*60*240
C=7/90432
C=77.4uF (Round up to 80uF)
So would this mean that I need 40uF either side of the centre transformer?
Input requirements
This is the part that confuses me. Once the conversion happens, what will be the input electricity requirements to run the welder without any issue? Obviously 240V, but will the amps required be those shown in the machine specs under 220V? Should I make sure to use to 25A outlet on a 40A circuit breaker?
These may seem like basic questions, but I hope someone can help me if you are able to.
I plan to post the instructions once I can confirm the conversion was successful.
Thank you for your help!
Sam