Great question, Bill...
In fact, I was going to ask that myself...
Ya beat me to it.

What could happen if the generator and grid tried to occupy the same system?

Would the timing of the phases be critical in this? I realize that any timing would be short-lived with the flucuations of a portable generator...

And if so, would the potential be anywhere from 0 to 480V (given a 120/240V system) depending upon how the phases lined up?

Thanks again for your input guys...and thanks for taking the time to "spell it out" for me...


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI