Company in the chemical business, 4 GSU transformer

Nameplate data of the transformer:

Manufatc: xxx
Year: 2000
Power [MVA]: 47
Voltage [KV]: 34
Oil mass [Kg]: 12.000
Oil type: naftenico

Last week, on 6^th March, the Seminar titled “Seminar on Best Solutions for the Problem of Corrosive Sulfur (DBDS) on Electrical Transformers” organized by Sea Marconi and Teyseer Motor was held in Doha (capital of Qatar) [Press review]. The event provided the participants a greater knowledge and awareness about the problem of corrosive sulfur and, most of all, the possible countermeasures. This problem is very sensitive in the Persian Gulf Countries, however, the knowledge on this matter not always reflects the technical and normative state of the art.
Sea Marconi clarified with the participants the origin of the problem of the corrosivity of oils, the evolution of the corrosion phenomenon and how the latter can degenerate in a failure.

The second part of the interventions outlined a panorama of possible countermeasures, clarifying that both the change of the insulating oil and passivation cannot be considered as definitive solutions for the corrosive sulfur problem. Currently, the selective Depolarisation Chedcos by Sea Marconi is the only really effective and definitive solution to the problem of oil corrosivity.
The event in Doha has gathered 80 participants representing the major industrial groups of Qatar, among them QAPCO, Qatalum (Globetrain ltd), Qatar gas, Qatar petrochemical Co. Ltd, Qatar steel company, Kahramaa, Oryx gtl, Peninsular Petrotech Engg.
The feedback collected during the meeting was very positive, with several requests for further deepening. The presence by Sea Marconi in the Persian Gulf continues with commitment and constancy: after the first depolarization job for corrosive sulfur at QVC (Qatar Vinyl Company Ltd.), important negotiations are almost concluded not only in Qatar, but also in other Countries in the Gulf.

At the eighth “Regional Conference for national committees of CIGRE in the Arab Countries” (www.gcc-cigre-power.com), in Doha (Qatar) from 18th through 20th October Sea Marconi provided really innovative solutions.

The most important is surely the kit SM-TCS (Total Corrosive Sulfur), the unique really effective response for the total quantitative determination of corrosive compounds of sulfur. These compounds are indeed the main culprits for catastrophic failures on transformers, reactors, under-load tap changers and bushes, occurred in the last ten years in several Countries around the World.

The Conference of the Gulf Countries involved hundreds of experts coming also from outside the Middle-East area, offering the opportunity to share the state of the art in the management of fleets of strategic equipment, in the generation, transportation and distribution of electric power, as well as in desalinating and making water drinkable.

Vander Tumiatti (Ass. Secretary IEC TC 10) presented “DBDS & Corrosion free” Programme 2010: diagnosis and countermeasures. Quantitative determination and selective depolarisation.