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Generators / Re: Welding off the Lister
« on: August 10, 2022, 10:03:45 AM »
With every step of the thing, you incur more losses. Trying to run a spinny thing, to a generaty thing, to a con/in-iverter thing, to a transformer thing... And a "standard" of conversion efficiency is 80% So... 80% of 80% of 80% of 80%....
A 6/1 running at nominal is 6HP = 4474W or 4.7kW. (*0.80) You can tap the motor out another few hundred RPM for more power. (minus the losses)
I think an extra 50 RPM gave the 3/1 another 50HP but sorry I can't remember the maths behind that.
I don't know what the stamford head will do, or how it's coupled.
Personally, with that engine I'd be looking to the hell rectifier setup (skipping inversion/reversion/conversion) and running DC welds straight off. I'd be surprised if you could stall it on 2.5mm rods.
A 6/1 running at nominal is 6HP = 4474W or 4.7kW. (*0.80) You can tap the motor out another few hundred RPM for more power. (minus the losses)
I think an extra 50 RPM gave the 3/1 another 50HP but sorry I can't remember the maths behind that.
I don't know what the stamford head will do, or how it's coupled.
Personally, with that engine I'd be looking to the hell rectifier setup (skipping inversion/reversion/conversion) and running DC welds straight off. I'd be surprised if you could stall it on 2.5mm rods.