Where are oil filled pad mounted transformers commonly installed?

Oil filled pad mounted transformers are commonly installed in underground distribution systems serving residential neighborhoods, commercial buildings, campuses, and industrial parks. They sit on concrete pads at ground level and are used where overhead lines are restricted or aesthetics and reliability favor underground feeders. They are also used near shopping centers, hospitals, and data centers where compact footprint and vandal resistant enclosures are needed. Containment and drainage provisions are often included to manage potential oil leakage.