Sorry for not getting back. The tripping, as far as we can tell is definitely inrush overload. The recorder shows almost 200 a on inrush. We do "assume" that is what's tripping the 100A main. With 2 separate mains we're hoping to split the inrush into 2 parts, each going thru a separate 100A main. Hopefully this will get it to a manageable level so neither main trips.
