robert-shetland
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Looks like this may fit the bill?
https://www.rapidwelding.com/dynamic/DisplayItem.aspx?c=029015507AP&zl=3
https://www.rapidwelding.com/dynamic/DisplayItem.aspx?c=029015507AP&zl=3
No european machines work like the Miller because we use either 230V single or 400v three phase. Whereas in America voltage and phases vary state to state.here is a link to a miller one that can be configured to my supply and is advertised as such.
Just wondered if any of the big ones in the UK are the same
https://www.millerwelds.com/equipment/welders/mig-gmaw/millermatic-350p-aluminum-mig-welder-m00398
Looking at the wiring diagrams of these machines in the usa, what they seem to have there is what they call 230v single phase, 460v single phase, and then 230, 460, 570 in 3 phase.No european machines work like the Miller because we use either 230V single or 400v three phase. Whereas in America voltage and phases vary state to state.
I’m guessing you want to try and run your two phases together to get 480V line to line. Not sure the Miller can accept that. It can do it 480v single phase, but it doesn’t do two phase as far as I know.
Thanks for the reply.IF (big IF) it soesn't have phase-loss detection the 3-phase welder should run from two phases, that then takes us to "will the rectifier and capacitor take it" - a three-phase rectifier is expecting (and designed for) each phase to be conducting in each direction about 1/3 the time, and you'll instead have one not in use, the other two having a longer on time PLUS the capacitors experiencing a higher ripple voltage and current - this applies to VFDs as well when run from single-phase supplies with the voltage-doubler mod to the input stage (which I've done on a few) - it does reduce the capacitor lifespan a bit and with VFDs it's sensible to de-rate them a bit, usually going for one 50% heftier than the motor suggests.
I have a 3-phase (inverter) TIG running from a phase converter so it's fed three fairly-equal voltages in the range it expects (between 400 and 420v depending which phases you measure across), might be a way around it as having 480 already you could put that across two phases of a star-wound motor (with a bit of jiggery-pokery) to make the third phase, wthout having to run a step-up transformer like I have to? It could have a neutral taken from the star point, if you need one.
Dave H. (the other one)
Thanks for the reply.
I understand it could be done using a phase converter but was trying to avoid that (just another machine to run)
To balance it out in the case of the inverter welder, you mention 1 phase not being connected.
Wouldnt it work if you just put a link from L2 to L3 to make the welder think it had 3 phases connected?
My mind is nowhere near set, just pondering the options. may have to look at importing a machine set to run on this voltage. might be expensive but may be the only way i can get what im looking for without a converter of some sort.Sounds like you’ve got your mind set anyway, but don’t be surprised when you trash a board.
ESAB certainly wouldn’t cover your warranty, doubt anyone else would either.
That does seem to be the problem, communications are usually ok for the first email or two then it just dies. That is why I decided to get the Jasic Plasma and then either sell the TecArc as it is or because I can now investigate at my leisure, see if I can find the problem with it.If Tec Arc doesn't have anything I am sure they could build something to suit your application, the biggest problem I have had is getting a response from them. if only there admin was as good as the machines.
Ok just took a phase out of the Phoenix 330 plug and it powered up without errors, I don't have a torch on it so I just put a bit of wire over the pins and it basically just rebooted. Put the phase back in and tried with the wire again and it is as it should, gas valve opens, fan comes one etc.
So safe to say the Phoenix at least can not be used with 2 phases.