Module24 EOS Solarpark Transformator Oi Service EN

Increased Lifespan through Transformer Oil Services


The reliability and performance of renewable energy power systems are largely dependent on the availability of their transformers. The transformer ensures that the electricity generated is fed into the electricity grid at the expected voltage. In order to fulfil these tasks it is important that the high quality of the transformer oil used is maintained. During operation, however, the transformer oil degrades. Contact with oxygen causes the oil to oxidise and increased temperatures accelerate this process. The formation of acidic ingredients or sludge finally leads to the dielectric and, in extreme cases, also the thermal properties deteriorating. The worst case scenario is the complete failure of the entire transformer.


Also the aspect of environmental friendliness and sustainability, increasingly stringent regulations and international standards, increased cost pressure and the desire to deal with assets responsibly also mean that stakeholders in the energy supply industry are considering all available options. The extension of transformer life and the economic management of transformer oil have become key factors in recent years. The treatment and reuse of used transformer oil is now regarded as a viable alternative to topping up with new, unused transformer oil. The EOS quality standards also allow used transformer oil to be treated in such a way that it meets the high requirements of IEC 60296:2012 for new, unused transformer oil. Regenerated transformer oil is therefore the ideal and sustainable solution for conserving valuable resources.

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Transformer oil:

– Replacement of transformer oil

– Regeneration of transformer oil 



– Waste oil recycling

– PCB waste oil disposal

– Transformer disposal


Emergency and Malfunction Management:

– Small repairs

– Large repairs

– Oil extraction and temporary storage

– Transformer replacement


Preventive Maintenance:

– Visual inspection

– Heat thermography

– Analysis of oil samples

– Oil collecting pans for transformers