FR3™ Retrofills

FR3™ Retrofills

Native American Transformer Services, Inc. was one of the first to embrace FR3™

Our equipment and American Philosophy are geared to provide dielectric fluid for almost any substation-size transformer within your grid.

NATS can advise on the suitability of a unit for retrofilling, suggest other alterations and repairs you may want us to make at the same time and take care of disposing of your non-PCB oil. NATS has several FR3™ fluid retrofills successfully completed, and we have the training, expertise, and knowledge to meet or exceed your environmental needs.

Envirotemp™ FR3™ fluid is a biodegradable dielectric coolant made from a formulation which includes vegetable oils and is proven to add value to new and retrofilled power equipment.

Envirotemp™ FR3™ retrofills possibly SAVES YOU MONEY in several ways:


In addition to FR3™ Retrofills, NATS has the equipment, experience and capability to complete repairs, upgrades, insulation dryouts, bushing replacements, and LTC repairs/upgrades. 

These are but a few services we perform, please call or email for a complete list.