RVs are all 120 volts, 15 amp or 20 amps or 30 amps or 50 amps. My 5500 watt generator has 2 outlets that are both 120 volts 20 amps each. The 240 volt outlet is 20 amp. There is no way I can run my RV on any of the generator outlets the RV has a 120v/30a male plug. I need a 240v to 120v step down transformer 5KW to convert 240v/20a to 120v/40a. Maybe this is what the guy is talking about, I never seen a generator that comes with a 30amp 120 volt outlet????
OK Gary,some math:
240*20 = 2 * 120 * 20 Units are Watts.
Your limited to 20 A because the output is split phase or 240 V center tapped.
You would have to get a 30 A 240 V generator. The 240 20A conversion can really get weird because it may not be isolated sitting on the ground.
This
https://www.tripplite.com/5kva-5kw-...k-mount-l6-30p-5-15-20r-l6-30r~SU5000XFMRT2U/ SAY NOT SUITABLE FOR MOBILE APPLICATIONS and it's also 208V and 60 lbs. So, it's a BIG suitcase. Just using it to illustrate size and weight.
And just looking at an RV pedistal:
https://www.rvparksupplies.com/p/503020AMPPEDPOWER/ you get 120 V 20 A, 120 v 30 A or 240/120 50A here the 50 A version is 240/120. So, you either bought the wrong RV or a generator that is undersized for your RV. The generator breaker will keep the current from exceeding the generators capacity.
Remember in the US, we call it single phase which it is and it isn't. Those trying to explain stuff will call it 240 split-phase. It's a center-tapped transformer where the center-tap is ground. The primary is single phase (maybe 9.6 kV) with one side grounded.
With 240/120, the two 120's delivered is 180 degrees out of phase from each other, therefore when you put them in effective series, the voltages add and you get 240 VAC.
They supply L1, L2, N and ground.
There is no way I can run my RV on any of the generator outlets the RV has a 120v/30a male plug
Well, you make an adapter that adapts your RV (30 A 120 V) to your generator at (20 A 120 V). The generators breaker limits the current to 20 A. The plug configuration does too. It's OK to provide the RV with less, but you will have to do some load shedding. Maybe the AC has to be off when doing some tasks. Maybe you have to prevent the water heater from coming on.