Alex Barberá

Oil volume is determined from tank geometry, radiator or cooler volume, conservator volume where used, and internal free space around active parts. Manufacturers provide nameplate or drawing values for total oil volume and sometimes separate “oil in main tank” vs “oil in radiators.” For retrofits or field estimation, technicians use dimensional calculations and calibration tables, accounting for thermal expansion and required headspace. Accurate capacity matters for logistics, spill planning, and correct filling level settings.

Generally, no. Transformer oil is formulated for sealed electrical apparatus and controlled insulation systems, not as a general purpose coolant or lubricant. Using it in improvised ways raises fire, contamination, and health risks, and it may degrade insulation if the system is not designed for oil immersion. Some specialized equipment can be oil cooled by design, but that uses engineered sealing, compatible materials, and safety controls rather than ad hoc filling.

Repair kits are required for gasket leaks, flange seepage, valve leaks, or minor tank cracks detected during inspection. They provide temporary sealing until permanent repair or shutdown can be scheduled.

Yes. Used transformer oil can be restored via vacuum dehydration, degassing, filtration, and regeneration (acid removal, sludge breakdown). Fluidex systems achieve BDV > 65 kV and TAN < 0.05, meeting IEC 60296. Great alternative to full oil replacement - more sustainable and cost-effective.

Transformer oil is typically changed every 10-15 years, but this depends on load, environment, and oil test results. Instead of full replacement, many companies now use purification systems from Fluidex or GlobeCore to extend oil life. Regular filtration, degassing, and analysis help delay expensive oil changes while maintaining performance.

Yes – Fluidex supplies waste oil filter machines suited for industrial oils contaminated with water, sludge, or metal particles. These machines are used in mining, steel production, and power plants to filter hydraulic and lubrication oils for reuse. Units are available in fixed or mobile configurations and meet ISO cleanliness codes.

Yes – Fluidex manufactures industrial vacuum dryers designed specifically for drying transformer insulation (cellulose, pressboard, paper). These dryers are used before oil filling or after repairs to remove bound moisture. Their systems offer programmable heating, deep vacuum (? 1 mbar), and cycle monitoring. A must-have for transformer OEMs or large-scale repair shops that need precise drying without risking insulation degradation.

Hermetically sealed transformer oil sampling prevents contamination and gas exchange before lab diagnostics. Fluidex supplies complete oil sampling kits, including vacuum-tight glass syringes and bottles, for DGA and moisture testing. These are widely used before sending samples for dissolved gas analysis. Following the correct procedure is vital to ensure test accuracy and avoid misleading results due to air ingress.