I've got a tiny Lincoln Invertec V100-S welder as a backup unit for my house, and I am having problems with it.
The documentation says it requires a 20 Amp 110V circuit, and it has a 100 Amp output maximum at 15% duty cycle, or 100A/24V/15%, 85A/23.5V/20% and70A/23V/20%.
The 100A output requires an input current of 32A on a 30 Amp branch circuit;85A output requires 25A input on a 20 Amp circuit, and 70A output requires 20A input (no note on the circuit).
I'm trying to use an 1/8th inch E6011 on DC+ with the dial on the little unit set at 70A.
I know the 6011 should be run a little hotter than this, but every time I try getting up higher, it trips one of the 20 Amp breakers in my house.
Here's the problem: Set at 70 Amps, the arc flares on, sputters nearly out, then cycles back to on. An entire cycle takes maybe 2 seconds with me having just about as much "go time" as I have "sputter time." My wife reports that the inside of the house also seems to be experiencing a Brown Out at about the same frequency.
Is this Invertec machine bad?
Do I desperately need to use smaller rods?
Is the house wired that bad? (it was built in 1955)
Any suggestions on which way to approach this problem?