On 13 May 2025, Milan hosted the CEI – CT10 Study Day “How to Extend the Life of Transformers“. More than 170 industry professionals — utilities, industries, manufacturers and laboratories — took part in a day of technical discussion dedicated to one of the most pressing challenges in energy network asset management.
SEA Marconi participated as official sponsor and technical speaker, presenting experimental data, innovative methodologies and real-world case histories.
TransfoCare: From Pathological Assessment to Integrated Treatment
Vander Tumiatti presented SEA Marconi’s approach to electrical asset life cycle management, built on the triad Diagnosis / Prognosis / Treatment. There is no real extension of service life without an integrated reading of the asset’s pathological profile. Insulating fluid, solid insulation, operational history — all contribute to defining the true health status of the transformer and the most effective actions to extend its life under safe and resilient conditions. In his presentation, Tumiatti noted that “a major European utility (RTE) has committed 100 billion euros over the next 15 years to grid resilience, and has selected SEA Marconi’s Apollo technology — with an initial order of 6 units and an option for 5 more — as the cornerstone of its transformer treatment strategy.”
The SRI Protocol: A New Tool for Assessing Fluid Impact on Cellulose Insulation
Giuseppe Pecoraro presented the results of a laboratory study conducted on six mineral insulating fluids taken from transformers in service. The study demonstrates that the insulating fluid is not neutral with respect to the ageing of kraft paper — the true biological clock of the transformer.
The SRI Protocol (Sustainable Resilience Impact), a new experimental diagnostic and prognostic method developed by SEA Marconi, enables measurement of fluid aggressiveness towards cellulose insulation through assessment of the degree of polymerisation (DP). Experimental results: following SEA Marconi integrated treatment, the average paper DP increased by +83.6%, with a direct impact on the extension of the asset’s thermal life.
Smart Nosy: The Monitoring System for Resin Transformers
In the exhibition area, significant attention was also drawn to Smart Nosy, the SEA Marconi system dedicated to health monitoring of resin transformers with preventive risk alert functionality. A solution designed to identify anomalies at an early stage, improving operational safety, plant reliability and continuity of service.
