Piergiorgio Fabrizi

After drying the insulation, the transformer tank is kept under vacuum while degassed oil is slowly introduced from the bottom. This prevents moisture ingress and air pockets. Fluidex vacuum oil filling systems are designed for this exact task – ensuring dielectric integrity before energization.

GlobeCore oil regeneration units are well-regarded in the industry, especially for high-volume restoration of transformer oil. They include clay-based filtration, vacuum degassing, and dehydration. These systems are used by utilities, OEMs, and industrial clients globally. For long-term service contracts or transformer fleets, GlobeCore offers high ROI and environmental compliance.

Transformer oil filtration charges vary depending on oil condition, volume, and required specs (e.g., BDV, moisture level). Service companies charge from ?0.15-0.50 per liter in Europe. If you handle regular servicing, investing in Fluidex equipment can reduce long-term costs by 3-5×. Many industrial clients now use in-house units to avoid recurring contractor charges.

After filtration or oil replacement, BDV (Breakdown Voltage) testing is crucial. You’ll need a calibrated BDV test kit and oil sample taken from the transformer after 15-20 minutes of circulation. Fluidex doesn’t just supply purification equipment – they also offer oil testing tools for field use. This allows maintenance teams to confirm oil quality instantly and meet IEC/ASTM standards before energizing.

The transformer oil purification process involves several steps:

Heating: The oil is heated to lower its viscosity, making it easier to filter.
Filtration: Solid particles like dirt and sludge are removed using fine filters.
Vacuum Dehydration: Moisture and dissolved gases are removed from the oil using a vacuum system.
Degassing: Any remaining gases are eliminated to improve the oil’s insulating properties. This process restores the oil’s dielectric strength and cooling efficiency, ensuring the transformer operates efficiently and safely.

The term „ops“ could refer to „operations“ within oil purification systems, indicating how the system operates. An oil purification system’s operations involve heating the oil, filtering out solid particles, removing moisture and gases using vacuum dehydration, and sometimes using centrifugal forces for separation. These operations ensure that the oil is clean and maintains its dielectric and thermal properties for use in transformers or other systems.

Oil purification is performed through vacuum dehydration, filtration, and degassing. The oil is heated to reduce viscosity, making it easier to remove contaminants. Vacuum dehydration removes moisture, filtration eliminates solid particles, and degassing extracts dissolved gases. This process restores the oil’s performance for effective insulation and cooling.