Tan Delta Electric Corporation vacuum oil purification and regeneration rigs can be used to process oil on online or offline transformers. Our rigs can process up to 6000 Liters Per Hour, and because the transformer is energized, the customer never has to take an outageWe offer oil regeneration where oil is being restored to its original properties and to be used equally “as new” so replacement is not necessary. Regenerated transformer oil is the best quality, environmental and economic choice for transformer installation and maintenance.