will home generator run welder?????

[zonta223]

remember.. the wattage for a genny is half on each leg of 220.. thus a large load like a 20a load on 120 is big. and some large motors can take 2-5x their run rating to start.

Very true if the Alternator is a 2 phase 110 volt unit....However if it a straight single phase 220 unit and has no 110 volt outlets then both active and neutral should support that load easily.
There are many possible combinations of what is causing the PTO driven Alternator not to run the compressor such as voltage control....speed control when the alternator loads up......cable size etc etc, need a couple of meters on it during operation to find the exact problem

 

[JB4310]

Very true if the Alternator is a 2 phase 110 volt unit....However if it a straight single phase 220 unit and has no 110 volt outlets then both active and neutral should support that load easily.
There are many possible combinations of what is causing the PTO driven Alternator not to run the compressor such as voltage control....speed control when the alternator loads up......cable size etc etc, need a couple of meters on it during operation to find the exact problem

I'm pretty sure it is split or 2 phase, it does have 110 outlets as well as 220 outlet on the generator. There is HZ and volt meters on the genny to monitor, they stay within spec.
And I am certain that the cable size should be good at 6 gauge from genny to panel and 12 gauge from panel to outlet.

This compressor has an option to wire it 220 volt, never looked inside but I don't think its that complicated, maybe that would solve the problem, more a inconvenience, but seems on paper it shouldn't be happening.

Sorry for the hijack swnge

As far as welding off the generator, I have a Honda portable welder/generator.
The welder is capable of 175 amps DC but the generator is only ~4000 watts ac and only 120 volts, no 220 outlet.

Not sure if that all means anything???

JB

 

[Soundguy]

Very true if the Alternator is a 2 phase 110 volt unit....However if it a straight single phase 220 unit and has no 110 volt outlets then both active and neutral should support that load easily.
There are many possible combinations of what is causing the PTO driven Alternator not to run the compressor such as voltage control....speed control when the alternator loads up......cable size etc etc, need a couple of meters on it during operation to find the exact problem

considering jb4310 said this:

It's plugged into a 120 volt 20 amp outlet and never tripped the breaker.

I think it's plainly obvious.

soundguy

 

[Soundguy]

This compressor has an option to wire it 220 volt, never looked inside but I don't think its that complicated, maybe that would solve the problem, more a inconvenience, but seems on paper it shouldn't be happening.
JB

it would likely help.

again, however.. if that motor simply has a super high start load vs it's run, it may not be enough genny.

we were powering a well with a 5500w genny.. or trying anyway. pump was rated at 1.5k it would not start on a 5500/6500 ( run/peak) genny, however would start on a 6500/7200 genny.

soundguy