Dear conversion friends,
When the engine is running, we operate the MultiPlus-1600VA directly from the generator (buffered by starter battery). As soon as the engine is switched off, we switch to the body-battery with a high-power changeover contact (relay). How fast must the switchover take place so that the voltage drop on the AC side of the MultiPlus-1600VA is a maximum of -10%? Assume that the AC side is loaded with 80%.