paul— On the pole-mounted unit, how far would you have to travel to disconnect the transformer’s [11kV?] high side? Inclusion of primary fused cutouts here look like the only significant difference. In the US, there have been “CSP” transformers in service, but tend to be fading in popularity. {Completely Self-Protected…}
The second “padmount” image would be real common where feeding a building or two on a college campus, but it would not likely be utility-owned.
Having semi-universal 415Y/240V would simplify things a bit. Here, you can get 120/240V 3w [~10-50kVA 1ø] 208Y/120V 4w [>45-500kVA 3ø] or 480Y/277V 4w [~75-3750kVA 3ø] for likely the same range of loads. In a lot of the US, the relative need for air conditioning most typically drives transformer sizes.
Utilities often install 1ø or 3ø “low-rise” padmount transformers, but with thousands of separate utilities, practices vary widely.
On the nosey neighbors, I would be tempted to knock on the door and apologize for the inconvenience, but you are merely conducting a recently mandated preliminary assessment of inhabited structures that would need to be rebuilt following a tank rupture.
