Bjarney,
Thanks for the pointer to the relay and the link to the paper. I am aware of the general concepts of using resistance grounded systems; but for some reason I was having tunnel vision in this case, and only thinking in terms of a solidly grounded system and then using some sort of current transformer based ground fault detection. I will be pointing the engineer who is selecting the generator to this; this would seem to be a perfect application for an impedance grounded system
-Jon
