Thanks for all the input guys! My customer is playing a "progressive disclosure" game - I'll be back with more details....
All my loads are Delta - no L-N loads. No utility power - I have a couple of dry transformers for power when the gensets are off at night - manual transfer switches to connect those loads to PoCo. No corner grounds either.
One genset feeds a SquareD panelboard; the other feeds an A-B MCC.
Grov
