Oil treatments are preventive maintenance and corrective operations which are fundamental for ensuring the reliability of machines with insulating fluids during their entire life cycle and in particular during the phases of:

• Impregnation, when the transformer is filled for the first time at the manufacturer (factory tests follow this phase)
• Pre-energisation, i.e. immediately after transportation, installation and subsequent filling (transformers of a certain size are transported free of charge without their oil load)
• Operation, the normal operational life, for example to give new life to oils with problems of corrosion or which are particularly acidic
• End of service life, to prolong the life of the machine with dehydration treatment in order to plan its replacement or, in case of contamination with PCBs, to transfer the oil (no longer contaminated) free of charge to the consortium of used oils and/or sale of the transformer's precious metals

Chemical-physical treatments are the solution to specific critical issues, such as the presence of DBDS and corrosive sulfur, the excessive presence of humidity in the oil and pressboards or the excessive presence of gases. In all these cases, it is fundamentally important for the owner to examine the methods used by the supplier and the operating procedures used to perform the activity.

Technical standards (CEI, IEC, CIGRE, CENELEC, etc.) are indispensable guidelines for identifying the best available techniques on the market.

Sea Marconi is able to offer exclusive treatments defined by the Ministry of the Environment as "best available techniques" (Min. Decree 29 January 2007) according to a technical and scientific, economic and environmental balance.