Where are distribution transformers typically located?

• A. In generating stations
• B. In distribution substations
• C. In consumer homes
• D. In vehicles

Answer: (B)

Distribution transformers sit where the power shifts from the high-voltage distribution network to the lower voltages used by homes and businesses. They’re placed in distribution substations and, in many areas, on utility poles or in street-level enclosures. This location lets the grid deliver power at the right voltage close to where it’s consumed, reducing losses and maintaining voltage quality as power flows from the network to customers.

At generating stations, the transformers you’d see are large step-up units that raise voltage for efficient long-distance transmission—different stage of the system altogether. The final step-down for consumers isn’t done inside homes or vehicles; it happens at the distribution transformer in the street or substation before the power enters the service equipment of buildings.