The vehicle I'm currently sat in at the moment has a 32A electrical cable running in the back, currently pulling 2881W into a magic box provided by victron inve

The vehicle I'm currently sat in at the moment has a 32A electrical cable running in the back, currently pulling 2881W into a magic box provided by victron inverter/charger, that is used to charge a battery (which is currently fully charged). That battery is currently being drained at a rate of 2881W to run the equipment (via the inverter back to 230V) If I pull the 32A cable, everything carries on working (I believe it's a sub-20ms switchover). If the power goes for some other reason it carries on working. The truck can run on a 230V/13A source just as well (although when the aircon is on - not needed currently - we'll be pulling more than 13A so the battery will slowly drain). I can even plug into two different inputs. Now this is a mobile vehicle, and I'm no electrician, but my understanding is this is perfectly fine -- the victron presumably switches from the grid if the input is lost and doesn't feed anything back into the grid. Presumably the same setup could be used to power a home instead of several racks of equipment in the back of a truck.