Properly Vacuum, Degas, Dehydrate and Prepare New or Used Oil for Installation
Setting and dressing out a new power transformer for successful operation requires a team well-versed in proper installation techniques, especially one with a keen understanding of oil processing. Dielectric fluid or oil processing service dries transformers and prepares mineral and ester-based insulating fluids. This oil process is a critical stage in taking a transformer online.

Expanse’s oil processing team is prepared and equipped to respond to take and keep your power transformer online. We thoroughly evaluate each system’s specifications to properly pull a vacuum, degas, dehydrate and remove particles.
Equipped to Respond
Expanse owns and operates self-contained, state-of-the-art mobile oil processing rigs and equipment with oil processing capabilities at rates up to 2000 gal/hour.
Routine Oil Testing
As transformer oil deteriorates, its ability to provide the required dielectric and cooling properties is diminished. Expanse’s routine oil testing services help determine the condition of the oil as well as other physical and chemical properties. The test results identifying any required maintenance needs to help prolong equipment life.
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Power Transformer Oil Processing Services
- Oil hauling
- Oil draining
- On-site oil storage
- Degas
- Dehydrate
- Remove Particles