Transformer

Our pole mounted transformers are electric utility distribution transformers that are mounted on an electrical service pole (wood or concrete) and are usually at the level of the overhead cables. Pole mounted transformers are the common breadbox transformers used for converting distribution voltage to the 120/240 volt power used by homes and low-volume commercial installations.

Pole mounted electrical transformers are used in extensive rural area. These transformers range from 16 kVA to 100kVA and transform 11,000 to 33,000 volts down to a low voltage of 400 volts. Pole mounted transformers are reasonably small in size and mass so that it is easy to install them on single pole structures, and larger units on two-pole structures, approximately 5 meters above the ground. This makes the transformers inaccessible, reducing the risk of injury to animals and people and minimizing vandalism.

With exposure to harsh climate conditions and situated in remote areas, reliability has been built into the specification of these electrical transformers. Tanks are shaped to reduce accumulation of water and corrosive materials. Protective coatings are applied to tanks to reduce corrosion. In the coastal regions tanks are zinc sprayed. In highly corrosive areas tanks are made from Stainless or 3CR12 steel.

Pole mounted transformers are typically single-phase. However, vector designations determine the number of primary bushings and how the transformers can be connected in a three-phase bank.