CMM-R6 unit (transformer oil regeneration with sorbent reactivation capability)
When regenerating operational transformer oil with this process, the dissipation factor of the oil is significantly reduced and corresponds to that if fresh transformer oil.
This equipment allows to reduce acid number of transformer oil to the regulated values. A special feature of the process is the reduction of soluble and insoluble sediment. This sediment is harmful in that it deposits in the cellulose insulation, being much more acidic than the oil.The oil has a tendency to precipitate acidic products which then concentrate in the paper insulation. The acidity of the oil then changes very slowly. Further growth of oil acidity accelerates and is accompanied by formation of insoluble sediment and water-soluble acids.
The unit is based on a frame supporting vessels, tanks and pumps.
The regeneration unit consists of sorbent columns, buffer tanks and sorbent reactivation system.
The regeneration unit restores the chemical composition of the oil. Oil is restored by the sorbent. The sorbent can capture oil decomposition products, improving its color and dielectric performance.