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Well it is car related and too technical for me......
I want to use a generator to power a mig as I have a workspace with no power. What output would I need to power a Clarke 135 mig welder and would it have to be one of these inverter generators?
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14 Audi A3 Sportback - Easy driver
05 Audi TT MK1 3.2 DSG - Damn quick
73 Triumph 2000 - Needs work
03 Range Rover 4.4 V8 petrol. Had to get it out of my system.
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Hi, Don't do it! A generator would need to be more than twice the size you would think and then still not ideal. The problem is when you pull the trigger to start welding the load is instant and reasonably high the generator can't pick the revs up quick enough to cover it and ends up being overloaded and the welder operating on reduced power. It usually ends with either the generator or the welder being damaged and in some cases both.
Colin
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Last Edit: May 6, 2017 23:19:19 GMT by colnerov
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rude
Part of things
Posts: 537
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At my old work I had trouble powering my kettle with a generator. Then I got hooked to the grid. At work now I have a generator that comes inside its own container with a 2000 litre fuel tank. That does 2 kettles with ease. It smokes like hell eventually though as there is no load on it so if you have a lead long enough, your welcome to plug in.
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1986 Haunted BMW E24 635CSi
1999 Povo spec BMW E36 1.8i Touring Work Hack
2001 Petrol annihilating Discovery V8
2000 Jaguar S Type 3.0 V6 ~NEW~
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Mig running off a generatorslater
@slater
Club Retro Rides Member 78
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To be honest I'm not sure there are many specs you can look at that will guarantee it will work. Depends if you want to use it on full 135amp too ofcourse. I do know you will need a big one however ;-)
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i don't know the calculations offhand but a friend runs an agri mobile mechanical business from his transit and has a 220 amp sip arc/mig setup running off the biggest non tow along unit that Pramac make, which is 12 KVA. IIRC powered by a 630cc honda v twin. www.directexports.co.uk/pramac-s12000-12kva-83-p.aspthis one I think! if you only have a 135 amp unit then maybe 6-7 kva will do? |
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Thanks for the replies chaps. Ok so its not going to happen. Did think I'd need a huge output but didn't realise it would be so big.
Mark
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Last Edit: May 6, 2017 17:29:21 GMT by fastblatt
14 Audi A3 Sportback - Easy driver
05 Audi TT MK1 3.2 DSG - Damn quick
73 Triumph 2000 - Needs work
03 Range Rover 4.4 V8 petrol. Had to get it out of my system.
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A lot will depend on the power factor of the welder. I suspect they are pretty poor. A 12KVA would be 9.6Kwatts at a Power Factor of 0.8 which is around 42amps @ 230VAC. Running a gen set with such a spiked load will not do it any good.
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93fxdl
Posted a lot
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Posts: 2,000
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For stick or tig welding you can modify a car alternator to provide the power, and that could be driven by a small engine. Or how about readywelder.com/ Ttfn Glenn |
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Last Edit: May 6, 2017 20:35:11 GMT by 93fxdl
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