Pad Mounted Transformer for Underground Utility Distribution

Single phase pad mounted transformers are used with underground electric power distribution lines at service drops to step down the primary voltage on the line to the lower secondary voltage supplied to utility customers. A single phase pad mounted transformer may serve one large building or many homes.

Like most electricity distribution equipment, single phase pad mounted transformers don't last forever and need replacing. Residential single phase pad mounted transformers have an expected life span of about 30 years, but factors such as weather and salt can shorten it.

When the use of the crane is restricted, the single phase pad mounted transformer can be moved using a rolling device. During the movement, the transformer should be kept in a vertical state and moved horizontally.

Combustible structures like houses, garages, and other buildings must be at least 10 feet from single phase pad mounted transformers. For non-combustible structures, this clearance can be reduced to three feet.

Some of the advantages of single phase pad mounted transformers include reduced installation costs, lower maintenance requirements, improved aesthetics, increased safety, and flexibility in space utilization.