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Terna presentation: Natural Ester-Filled Transformer TERNA Experience

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Mineral oil is a well-known fluid used in the insulation of power transformers, most frequently in large power applications.

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In recent years, the number of power transformers filled with natural ester has been increasing for its key benefits related to sustainability, biodegradability and fire protection. The presentation deals with Terna’s experience with natural ester-filled large power transformers.


See the slides here

Simone Sacco


Simone Sacco is the Head of Power Transformer Technology at TERNA. Simone is an electrical engineer with more than 15 years of experience in utility (the first being distribution and, since 2010, transmission system operator) and 10 years of experience in high voltage substation equipment. Since 2016, he has been employed in the Engineering Department as a power transformer specialist, becoming  Head of Power Transformer Technology in 2022.