From 23 to 27 June 2019 in Rome, Sea Marconi will participate as speaker and silver sponsor at the ICDL – IEEE International Conference on Dielectric Liquids. The ICDL, at its twentieth edition, hosts the major experts in the sector and is undoubtedly the event of the year for all professionals engaged in various ways in the management of the life cycle (LCM) of electrical equipment and insulating fluids.
The intervention of Sea Marconi will be entitled “Corrosions & PCBs: Inventory, Diagnostics and Treatments of Oils and Transformers”, (see. abstract below)* and offers a Risk Management and Asset Management approach on equipment with insulating fluids such as transformers . In particular, the paper technically describes the solution to two important critical issues (“pathologies”): corrosion and PCBs contamination. Sea Marconi is able to provide a complete response by offering a service of absolute excellence in fluid analysis (thanks to Accredia accredited laboratory), in the diagnosis and prognosis of critical issues and in the treatment of oils and transformers.
At the ICDL Sea Marconi will also present a poster (click here to open) entitled: “Life Cycle Management of Natural Esters & Transformers according to IEC Standards: Case History of EnvirotempTM FR3TM Fluid & TransfoClean® Bio Solutions in Brasil.” This study, conducted in collaboration with Cargill, the Sapienza University of Rome and the University of Missouri (Rolla – USA) expresses the commitment and direction of Sea Marconi in being a pioneer also in the field of natural esters, a product that reflects the natural propensity of the company to look for environmentally sustainable solutions.
This paper describes the “State of the Art” for inventory, diagnostic, prognostic and integrated treatment of electrical equipment and insulating liquids containing DBDS/Corrosions & PCBs (Tech Pathologies). The Corrosions determine functional risks for transformers and equipment filled with mineral insulating oils: C1-DBDS &Corrosive Sulfur; C2-NOT DBDS &Corrosive Sulfur; C3-.SCBP & Corrosive Sulfur; C4-NOT Corrosive Sulfur &Metal Dissolution.
The PolyChlorinatedBiphenyls (PCBs) are a “Persistent Organic Pollutants” (POPS), as “Class 1.Cancerogenic to humans (IARC 2013) and determine risks for workers, public health and environment.
The oils & transformers integrated treatments, PCBs dehalogenation technique (“DMU & CDP Process” patented by Sea Marconi) and DBDS Selective Depolarization, in continuous mode through a closed circuit process are the sustainable solutions (Therapies) based on “circular economy”.
These solutions are based on the use of Smart Decontamination Modular Units (DMUs) and a solid reagent, consisting of a higher molecular weight glycol compounds, a mixture of bases and radical promoter or other catalyst on a high surface area particulate support. These processes normally run at 80-100 °C and have the capability to decontaminate equipment on-site through continuous circulation of the oil in a closed system (without draining the oil or using auxiliary tanks), using the solvent capability of the oil for continuous extraction of PCBs and DBDS from solid materials inside the equipment (according IEC 60422 art. 11.4.4).
International experience of diagnostic, prognostic and integrated treatments according to IEC & CENELEC include On-Load treatments in power transformers and shunt reactors, in several countries are presented.
Keywords — Transformer, Oil, Additives, PCBs, DBDS, Corrosive Sulfur, Total Corrosive Sulfur, Integrated Treatments, Selective Depolarization CDP Process, Dehalogenation.
Authors: Tumiatti, Vander; Tumiatti, Michela; Tumiatti, Cristina; Actis, Riccardo; Maina, Riccardo; Maina, Simone