Theoretically yes, but it would be a great deal of work and would draw a little over 6 times the current it did when on three phase power.
It would entail replacing the fan motors, connecting the 6 windings of the 3 phase primary in phase and in parallel. Plus adding a 115 circuit " tapping off half of the 220 single phase" incoming power for some aspects.
The control board would also need modifications as well. because it uses 3 current sense transformers and you would need to rework that circuit to compensate.
The short answer if you were wanting to set one up for home use- just invest in a "Sidekick" They did have a 240 volt single phase version, and if you consider the time invested to change something over that could trip the 200 amp service breaker, if you value your time- the money for a Sidekick would be well worth it.
If you want proof- open up the primary side of the Deltaweld and look at all of those connections you have before you- you would not be using 1/3 of them, and you would need to take the time to make sure the 6 windings were in phase otherise the transformer burns out- it may burn out anyway because the current draw increase beacause all the low impedance windings are now in parallel on a nominally lower voltage- just the potential of fire from that arrangement makes the money spent for a Sidekick to be considered "cheap insurance."
SOURCE: I have a miller cp 300. It is wired for 3 phase
You cannot do this... 3 phase and single phase cannot be inter used... see 3 phase is 440 V AC, single phase is 230 Vots AC. This is unless the unit has Dual capability, in this case the wiring could only be wired to a Single Phase. of the unit. You will need a slow blow breaker of the correct rating and also the cable must be similarly CURRENT rated. If it IS only 3 phase, you can purchase after market single phase to 3 phase converters, that will allow you to plug the 3 phase into a single phase circuit and work, they quite costly though.
SOURCE: my welder a murex 245 single phase you be welding
wrong size fusses or breakers,if the right size breaker it could be getting weak.
SOURCE: Miller Delta Weld 450 Manual
Hi:
Follow the link for the owner's manual.
http://www.millerwelds.com/service/locate_om.php
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