An oil-field transformer is a rugged, oil-immersed electrical unit engineered to step down high transmission voltages (e.g., 24.9 kV or 34.5 kV) to lower operational levels (like 480V) for remote drilling rigs, pump jacks, and field processing equipment. It uses specialized mineral or ester oil for internal insulation and cooling.
Key Design and Core Features
Submerged Core and Coils: The iron core and copper or aluminum windings are completely submerged in a sealed, heavy-duty steel tank filled with dielectric transformer fluid.
Thermal Management: The circulating oil absorbs operational heat via convection and dissipates it through external cooling fins or radiators.
Corrosion and Weather Resistance: Built to withstand harsh outdoor elements, featuring heavy-gauge coated steel, sealed gaskets, and corrosion-resistant hardware.
