Adding VAs Gen Running Things Question

If that B&S generator reacts to non-resistive loads in the same way as the eu2000i, the converter should be very "happy" with it. You can't equate the microwave (or a motor) as a load with the converter as a load. The microwave (assuming a "conventional" microwave) will be a combination of a reactive/linear and distortion/non-linear load, both which are unfortunately (IMO) stated in terms of power factor. The converter should be a total distortion power factor load, with no reactive element. The generator will respond differently to the two different types of power factor. An added resistive load might help in one case, and do nothing in the other. Back to the first post, I concluded that you measured with each device operating one at a time, and then again with both operating. I think a better measurement would be measure them individually with both running (i.e. at each device's plug), then measure the combination of both (at the outlet strip's plug). I'd expect the readings to be more consistent than what you originally saw. If you're not tired of it by then, another interesting thing would be to do the same thing with shore power, where you won't have the load changing the waveform of the power source. I've always thought that the reactive PF of a microwave was a nit compared to the distortion PF, but maybe that's a bad assumption.