Ungrounded Transformer Uses

Pad-Mount Transformers

• There are many ways to configure an underground transformer and pad mount transformers are one type that is used to power homes and businesses. Pad-mount transformers are metal shaped boxes that contain step-down voltage reducing equipment and they are mounted on a large concrete pad. These particular units are mounted on the ground near homes and business and they are also located inside of specially designed rooms within buildings. Most pad-mount equipment is connected to a set of distribution wires that are located underground. This system gets its name because it is mounted on a concrete slab.

Submersible Transformers

• Submersible transformers are designed for repeated flooding or immersion, and they're typically placed underground. These types of transformers provide power to industrial, commercial and residential buildings. Submersible transformers are usually manufactured with a circular shape as opposed to the traditional box-shape of most transformers. Customers can have submersible transformers customized to meet their specific powering needs.

Direct Burial Transformers

• Direct burial transformers are used for commercial and residential projects where concealing the power source is necessary. Direct-buried transformers provide light to residential neighborhoods and concert and sporting events at stadiums, among other applications. Direct burial units are situated underground, and they are manufactured to be water and corrosion proof.

Vault Type Transformers

• Vault transformers can either be located above or under ground and they are mounted inside of vaults that are typically made of concrete. Vault transformers provide power to highly densely populated areas within large cities and they act as a secondary power source within grid systems. Vault transformers have to be designed in such a way to protect against submersion though they are located in places that typically remain free from moisture.