I am having a problem with an ATS that is tied in to a corner grounded delta system from utility power. When 1 pump is running, generator works like a champ. When 2 pumps are running, the ATS is constantly switching between utility and generator power. I am new to this kind of wiring system and am, first off, wondering exactly how and why it is set up like that. Also, I am wondering if it would have any effect on our control panel. Our readings were A-N 480 B-N 42 C-N 480. From my understanding, it should read 0 at B-N. However, we are getting some ghost voltage from a random source. Would this have any effect on our control panel as far as the sensing and maintaining the power source? Any help would be greatly appreciated. Thanks in advance.