Re: 3 phase rectangular pole mounted transformers..
Ya usually the PoCo will use 3 separate cans for a 3 phase service drop to a large building but it is NOT uncommon to see a single 3phase transformer of 150 KVA or less on a pole. Usually I have seen them where a building is an older one and had a separate 3 phase service strictly for an elevator or other motor driven equipment.
Don't worry fellas, I am working on those pix still. I know where there is a nice brand-new installation of one of these transformers, right outside my friends 7'th floor balcony.. I will have them in the next few days!
A.D