AC voltage and line loss
Hey guys, I have a 96 Bounder 34j with two brand new Coleman 13,500BTU AC units.. the weather is extremely hot right now and everyone is running their AC’s... even with my Hughes Autoformer I’m runnin...
Forum Discussion
who said anything about the genny only doing 20amps
i think you got confused someplace
i did say the rear a/c is on a 20amp breaker in the the panel with the rest of the 30amp house
and the front a/c is on the 20amp breaker of the onan
the onan 5000 has (2) breakers a 30 for the house and (1)a/c
and a 20 for the second a/c
this is common in almost all 30amp rvs with a generator
i also think it should be done differently
the onan is rated for 41.7 amps, but it is not (1) 40 amp breaker into the RV
which is the way i think they should be wired
generators are not built with mis-matched stator output windings
but they ship RV gensets with centered tapped wiring and expect to split an imbalanced load, at approx 27/14
when the windings are built do 20 on each winding separated or 40 when wired combined
so you get an RV with 50amps of combined CBs on a 41amp generator
and the load is NOT balanced across the generator output windings
unless you turn off everything except the (2) A/C units
lets say each A/C is drawing 13amps, everything else is off
theoretically you have 7amps extra on each circuit breaker 14amps total
put you can't pull that 14 amps thru only one side, say the house side to power the MW, that one winding won't do it you get a voltage drop
i think you got confused someplace
i did say the rear a/c is on a 20amp breaker in the the panel with the rest of the 30amp house
and the front a/c is on the 20amp breaker of the onan
the onan 5000 has (2) breakers a 30 for the house and (1)a/c
and a 20 for the second a/c
this is common in almost all 30amp rvs with a generator
i also think it should be done differently
the onan is rated for 41.7 amps, but it is not (1) 40 amp breaker into the RV
which is the way i think they should be wired
generators are not built with mis-matched stator output windings
but they ship RV gensets with centered tapped wiring and expect to split an imbalanced load, at approx 27/14
when the windings are built do 20 on each winding separated or 40 when wired combined
so you get an RV with 50amps of combined CBs on a 41amp generator
and the load is NOT balanced across the generator output windings
unless you turn off everything except the (2) A/C units
lets say each A/C is drawing 13amps, everything else is off
theoretically you have 7amps extra on each circuit breaker 14amps total
put you can't pull that 14 amps thru only one side, say the house side to power the MW, that one winding won't do it you get a voltage drop
