Transformer oil regeneration system

Transformer oil regeneration system

The HERING EOK-TORS transformer oil regeneration product line brings your transformer's insulating fluids back to life and restores them to their optimum condition.

The HERING EOK-TORS transformer oil regeneration systems give you the best of transformer oil regeneration and purification in one high-performance system
The proper treatment of transformer insulating oil involves the regeneration, dehydration and degasification of the oil. The HERING EOK-TORS transformer oil regeneration systems perform all three tasks in the highest efficient and most effective manner. Using our transformer oil regeneration equipment provides you with the all the benefits of our best-in-class EOK oil purification technology and the added power of the TORS regeneration columns. All our systems are made in Germany and powered by German Engineering to provide you with the highest quality possible.

There are typically two ways to regenerate deteriorated transformer oil to as-new or even better-than-new state: single-use Fullers Earth regeneration and multiple-use reactivation regeneration. Our HERING EOK-TORS transformer oil regeneration plants are reactivation systems that combine higher efficiency, longer lifetime and increased flexibility when compared to single-use Fullers Earth units. The HERING EOK-TORS transformer oil regeneration systems first strain, heat and filter the oil before sending it through a series of regeneration columns.

In these columns, our special highly adsorbent HERING PHÖNIX regeneration medium restores the oil’s properties in an initial step. Then, our HERING EOK oil purification system performs a full dehydration and degasification of the transformer oil. The quality of this process is higher than that used by most transformer oil producers. Therefore, your transformer oil will – in most cases – be restored to better-than-new conditions and at least to as-new conditions. Throughout the operation of the HERING EOK-TORS transformer regeneration system, our sophisticated reactivation process reactivates the absorbent medium in parallel to normal operation. Hence, you can use the HERING EOK-TORS to continuously regenerate transformer oil without the plant shutting down.

Regeneration systems typically remove the by-products of aging from used transformer oil. Transformer oil mainly consists of a mixture of hydrocarbons which deteriorate over time. Deterioration is mainly due to contamination, overheating, electrical stress, and oxidation. This causes byproducts to form in the oil which increase acidity (neutralization number) and decrease the interfacial tension of the oil. The sludge that forms during this process and the other by-products lead to a loss in dielectric properties. At this point, the transformer oil must be replaced or fully regenerated to ensure the efficient and safe operation of the transformer. There are traditionally two approaches to the removal of these contaminants, either approach will result in the used oil being restored to ‘as new’ state: Reactivation or single-use fullers earth application.

Our EOK-TORS® Series powered by Redragon reactivation type oil regeneration systems combine higher efficiency, longer lifetime and increased flexibility when compared to single-use fullers earth

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Transformer oil regeneration system

Recycling transformer oil - Therefore, the transformer oils in today’s transformers need to be at their optimum working conditions to ensure the safety of the equipment.

Transformer oil acidity removal - Utility companies constantly have to maintain their transformer oil, so that it has the right dielectric strength, low residual water content, low acidity, low IFT and no sulphur.

Transformer oil treatment - The transformer oil deteriorate over time as it draws in moisture and changes its chemical structure. As air slowly leaks into the transformer during its lifetime, the insulating fluid gets in contact with water and oxygen.