AC voltage and line loss

rgatijnet1 wrote:
There are several things happening that you do not show with your meter readings. What you do not show is the increase in amperage, and voltage drop, when one of your AC units is first starting the compressor. This can add several more amps as well as drop the voltage 2-5 volts for a short period of time until the compressor is up and running.
Another things is that as the voltage drops, your amps used will increase for all electrical items in your coach.
If you hear your AC compressors struggling to come on, that is the best indication that the voltage is too low. This is especially true if the AC compressor cannot get started and drops back in to a fan only mode.
Volt meters are fine but they only give you an instantaneous voltage reading on a power supply that is constantly changing.

Thank you for the info, I also have a killawat I can use which gives me more stats. What would you recommend? It seems like 90% is the places I go to here in SoCal, even plugging into my house has not so great power. Even with the Autoformer I’m struggling but I need to be able to run both of these AC units continuously and safely. This rig was designed to do just that so I am not sure what I need to do. I understand what you mean about turning the AC’s on.. I accidentally turned my new AC off yesterday and turned it back on about 15 seconds later and the compressor seemed to struggle so it went back to fan mode and about 20 seconds later it kicked back in just fine.. I think that was without my Autoformer though. Also I don’t really notice a big drop when turning them on that then goes away, only about a 4v line loss per unit.