Ray Singh
Posted a lot
More German exotica in my garage now
Posts: 1,984
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Oct 18, 2018 10:10:55 GMT
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A friend wants to run his welder from a generator as he has no power in his unit. He has sent me the data sheet from his welder, but wondered what should be considered and what is possible. Can anyone advise?   Will it work? Rav |
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Oct 18, 2018 11:29:46 GMT
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Hi, It's not really advisable to do it because on striking the arc there's a sudden high load and the generator may not pick the revs up quick enough to cover it and it can end up damaging either the generator, the welder or both. However a rule of thumb to mitigate some of the risk is for the generator to be more than twice the size needed and for it to have AVR (Automatic Voltage Regulation).
Colin
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Oct 18, 2018 11:59:43 GMT
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You can do it, I posted a restoration thread about one of my Carltons on here and that was done using a 150a welder and a £100 second hand generator, I think 3.8kva.
I did a vast amount of welding on the car.
Frankly it's a risk though if you don't oversize the generator a lot more than I did.
I knowingly started with a too small 2.3kva generator and cooked it, very silly but I was desperate to get started.
Definitely possible is the answer, but with care.
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If you ask on the Migwelding forum loads of info on it, generally you need a bigger generator
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It will come in handy even if you never use it
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