Three Phase Power and Welding

[Sodo]

They also told me $48k to string wire down the road for 3 phase several years ago.

3-phase will save you $7 the first year.
$48,000 paid off in 6,857 years

 

[3Ts]

3-phase will save you $7 the first year.
$48,000 paid off in 6,857 years

yeah! I also talked to my neighbor who also wanted 3 phase power, but even together we could not justify the cost.

 

[aczlan]

Hmmm, you're correct, but I'm sure the coop told me 26 kw. I'm wondering now if that was a coop imposed limit? They also told me $48k to string wire down the road for 3 phase several years ago.

That is likely their limit based on the wires coming down your road and the rransformer that you're on.

Aaron Z

 

[dstig1]

My XMT 304 is an inverter and has a significantly higher output limit on 3 phase.

 

[Big Barn]

My XMT 304 is an inverter and has a significantly higher output limit on 3 phase.

View attachment 660404

I have 3 phase on the farm but I choose to operate my XMT350 on single phase for convenience as I have 50 amp 220v welder outlets throughout the shop.

 

[dragoneggs]

I have 3 phase on the farm but I choose to operate my XMT350 on single phase for convenience as I have 50 amp 220v welder outlets throughout the shop.

And probably a well kept secret of a nuclear power generator.

 

[chim]

My XMT 304 is an inverter and has a significantly higher output limit on 3 phase.

View attachment 660404

Actually, what the graph shows is a lower output at a lower voltage. The top line is 3 phase and 460v SINGLE PHASE. The lower line is 230v single phase.

 

[Industrial Toys]

I wonder if it's just the higher power associated with three phase machines and not the AC. After all, they are DC output.

I bought this machine by accident at an auction for $1000 CDN years ago. Looked at nameplate and saw one option of 220 or something, not realizing it was three phase.

Built a 10 hp Rotocon to run it but the computer in the welder never liked the fake phase and would do odd things.

I do miss the pizazz of the bigger machine. NOTHING like industrial equipment! No Silly NASCAR stickers either!



I also ran it on 600 VOLTS which allowed for nice long extension cords and feeds to other buildings.

 

[yomax4]

Anyone run a phase converter? I have some equipment that would have a lot more output on 3ph. Not sure if it's worth it.

 

[dstig1]

Actually, what the graph shows is a lower output at a lower voltage. The top line is 3 phase and 460v SINGLE PHASE. The lower line is 230v single phase.

...Which would include 208 3 phase on the higher line...thus my point.