breakshift;929511
I forgot to mention - I need to measure the power without drawing any power away from the gen load. A transformer would draw a significant amount of power... right?[/QUOTE said:
As already posted the power drain for a 2VA 230v/6v will be insignificant....
BTW: 6Vrms when full wave rectified and smoothed, this will give approx [6v * 1.414] = 8.5Vdc less two diode drops, say about 1.3V, so thats approx 7.2Vdc,,, thats for a 230Vac input.
So at 200Vac with an ideal transformer step ratio of 38.34, they will become 5.2Vac, rectified/smoothed etc.. will give 7.38V - 1.3 = 6.0Vdc
This means that a 30Vac drop in gen output will only be a 1.2Vdc drop,, thats only 0.4Vdc change in DC output for a 10Vac change in gen output.....OK.