In the US, it is common for a small transformer hung from a utility pole to service a single house.

How much power does a small transformer consume when plugged in but not doing anything?

The company manufactured small transformers, electrical motors and appliances.

The small transformer would explode first, in 2 or 3 minutes.

The company also cut power in some locations after several small pole-top transformers failed.

The high frequency used permits the use of a much smaller transformer.

Some small transformers are used for isolation in pulse circuits.

For small transformers, resistance heating by injection of current into the windings is used.

In this photo you can see three small transformers (yellow) in the center.

For these, each fixture requires a small transformer to operate it.