Converter Size and Generator Size, Etc
Some useful info here about choosing converters and what generator needed in the Q and As, plus some example specs. Although it is for boats, much of it also applies to RVs (they don't explain VA an...
Forum Discussion
Stealing stuff from the other thread on 108 vs 124 and applying it to here about gen/converter matching---
It was suggested earlier that the whole thing is not linear so that you could not just take the VA at 108v and it would be the same at 124v. The current at the VA at 124 is less than at 108, but the VA is not necessarily the same either.
In the above interpretation of the Iota guy's figures, the 55 amper would be pulling 1336 VA at 120v and 1447 at 108v. Salvo's calculations are a little different but same trend. He gets 12amps at 120 while I got 11 using the Iota guy's numbers.
So anyway, if the VA is less by however much at 124 than at 108, then we can return to the burning question--can you run a bigger charger with the Honda (124) than you would think you could if you used the charger's spec (at 108 where they take the "max amps" ) to match the Honda's rated VA?
It looks like you could, but not clear how much bigger without more exact specifications for the chargers
So the converter's spec sheet should give the "max amps" at 108 for the safety issue of whether it needs a 20a circuit or just a 15a, but we should not use that for matching to the Generator's rated output VA.
What we want is the converter's VA requirement at the generator's voltage (not all gens being the same, and some not even being "clean 120" )
Somehow, I doubt we are going to see that in their spec sheets :(
It was suggested earlier that the whole thing is not linear so that you could not just take the VA at 108v and it would be the same at 124v. The current at the VA at 124 is less than at 108, but the VA is not necessarily the same either.
In the above interpretation of the Iota guy's figures, the 55 amper would be pulling 1336 VA at 120v and 1447 at 108v. Salvo's calculations are a little different but same trend. He gets 12amps at 120 while I got 11 using the Iota guy's numbers.
So anyway, if the VA is less by however much at 124 than at 108, then we can return to the burning question--can you run a bigger charger with the Honda (124) than you would think you could if you used the charger's spec (at 108 where they take the "max amps" ) to match the Honda's rated VA?
It looks like you could, but not clear how much bigger without more exact specifications for the chargers
So the converter's spec sheet should give the "max amps" at 108 for the safety issue of whether it needs a 20a circuit or just a 15a, but we should not use that for matching to the Generator's rated output VA.
What we want is the converter's VA requirement at the generator's voltage (not all gens being the same, and some not even being "clean 120" )
Somehow, I doubt we are going to see that in their spec sheets :(
