If a transformer is described as pole-mounted, where is it typically located?

• A. On a utility pole
• B. Underground vault
• C. Inside a building
• D. In a substation yard

Answer: (A)

Pole-mounted transformers sit along overhead power lines as part of the distribution system, stepping voltage down right where it will be used. They are physically mounted on a utility pole, usually attached to the pole or cross-arm, so they sit above ground along streets. This arrangement brings the high-voltage distribution feeder down to a lower service voltage for nearby homes and small businesses, with the equipment accessible to line crews. They aren’t placed underground in a vault, inside a building, or in a substation yard, which are locations for other types of transformers or larger electrical equipment. So the typical location is on a utility pole.