View the agenda of
My Transfo 2025
Below is the list of scheduled presentations and the Focus Tables, thematic roundtables that promote personalized training and consultancy.
New in 2025: "FOCUS TABLE"
The Focus Tables offer participants an opportunity for technical training and direct discussion with industry experts. These are small thematic tables (max. 8 participants) where attendees can ask questions or discuss technical cases with the experts (who moderate the table).
Focus Tables will run in parallel with the Main Session, and every 30 minutes participants will be able to choose their preferred session.
Corrosion Phenomena
A focus on the main corrosion mechanisms in transformers, with particular attention to corrosive sulfur and its effects on copper and silver. Case studies, diagnostic techniques, and mitigation strategies will be presented. An essential deep dive for ensuring the reliability and maintenance of insulating fluids.
Moderated by: Laboratory Manager – Sea Marconi (Italy)
Moisture Care
Focus on how to prevent and control moisture presence in transformer oil
Moderated by:
COMEM (Italy)
Insulating Liquid Treatment
Focus on various techniques for treating insulating liquids and transformers. The session will showcase application cases and targeted solutions for specific “pathologies” of insulating liquids, aiming to extend transformer lifespan. A key topic for sustainability, asset, and risk management.
Moderato da: Riccardo Actis, On-site Services Director, Sea Marconi (Italy)
Transformer Diagnostics and Protection
Overview of advanced solutions for monitoring, early fault detection, and transformer protection The session will present sensors, algorithms, and integrated approaches to enhance reliability and extend asset lifespan.
Moderato da:
Schedule
"Università del dialogo" Room
REGISTRATION & Welcome coffee wth Sponsors
"Università del dialogo" Room
Welcome by SEA MARCONI and SERMIG
Main session (AUDITORIUM)
Introduction
Cristina Tumiatti
Global business development Director - Sea Marconi (Italy)
Main session (AUDITORIUM)
Welcome
#Asset #Risk #Resilience #Sustainability #R&D #Solution
Vander Tumiatti
General partner and Founder of Sea Marconi (Italy)
Main session (AUDITORIUM)
Insights or Assumptions Research-based data for informed decisions
#Asset #Sustainability
Mladen Banovic
Director, Editor-in-Chief of Transformer Magazine, Croatia
Main session (AUDITORIUM)
Standards are developed and used to reduce trade barriers and protect consumers and end-users who know specifically what they are purchasing. They are the minimum requirements, and the product must meet or exceed these requirements.
Electrical industry standards can be classified to three different categories as: specifications, guidelines, and test methods. In the electrical industry there are two main international standard organizations and one international institute responsible for development and maintenance of standards.
IEC, the International Electrotechnical Commission, traces its roots to the International Electrical Congress in St. Louis, in 1904. The IEC was founded in 1906 in London, UK. IEC TC10, Technical Committee 10 on Fluids for Electrotechnical Applications, is composed of 30 participating (voting) national committees (P-Members) and 12 observer national committees (O-Members). There are 22 subcommittees or working groups which have jurisdiction over 63 publications.
ASTM International, the American Society for Testing and Materials, traces its roots to the first meeting of 70 people in Philadelphia. The first standard, on steel rails, was issued in 1901. There are 148 Committees. ASTM Committee D27, the committee on Electrical Insulating Liquids and Gases, was formed in 1959. The committee has about 120 members (70 voting members) and meets twice a year. It has jurisdiction of over 50 approved standards specific to insulating liquids and gases.
IEEE, Institute of Electrical and Electronics Engineers, is an institute established in 1884. It has nearly 500,000 members in 39 societies. The Power & Energy Society (PES) has 39,000 in 17 technical committees, including the Transformer Committee which was established in 1918. The Transformer Committee has over 2,100 members and administers 115 standards and guidelines. These guidelines are related to the maintenance, condition monitoring, and acceptance of the supplied insulating liquids.
Standards are developed and used to reduce trade barriers and protect consumers and end-users who know specifically what they are purchasing. They are the minimum requirements, and the product must meet or exceed these requirements.
Electrical industry standards can be classified to three different categories as: specifications, guidelines, and test methods. In the electrical industry there are two main international standard organizations and one international institute responsible for development and maintenance of standards.
IEC, the International Electrotechnical Commission, traces its roots to the International Electrical Congress in St. Louis, in 1904. The IEC was founded in 1906 in London, UK. IEC TC10, Technical Committee 10 on Fluids for Electrotechnical Applications, is composed of 30 participating (voting) national committees (P-Members) and 12 observer national committees (O-Members). There are 22 subcommittees or working groups which have jurisdiction over 63 publications.
ASTM International, the American Society for Testing and Materials, traces its roots to the first meeting of 70 people in Philadelphia. The first standard, on steel rails, was issued in 1901. There are 148 Committees. ASTM Committee D27, the committee on Electrical Insulating Liquids and Gases, was formed in 1959. The committee has about 120 members (70 voting members) and meets twice a year. It has jurisdiction of over 50 approved standards specific to insulating liquids and gases.
IEEE, Institute of Electrical and Electronics Engineers, is an institute established in 1884. It has nearly 500,000 members in 39 societies. The Power & Energy Society (PES) has 39,000 in 17 technical committees, including the Transformer Committee which was established in 1918. The Transformer Committee has over 2,100 members and administers 115 standards and guidelines. These guidelines are related to the maintenance, condition monitoring, and acceptance of the supplied insulating liquids.
#Asset #Solutions
Dr Bruce Pahlavanpour
Senior consultant – Ergon International (UK)
Main session (AUDITORIUM)
#Asset #Risk #Sustainability #Solution
Agustín Harte
Programme Management Officer - Basel, Rotterdam and Stockholm Conventions Secretariat (CH)
Università del dialogo Room
Coffee & networking with sponsors
Main session (AUDITORIUM)
#Asset #Risk #Resilience
Franco Salomone
Operations Chief Engineer - FM Insurance Europe SA (Italy)
Main session (AUDITORIUM)
Now days, dielectric esters (natural and synthetic) are not only an alternative to mineral oils, but a primary choice for transformer owners sensitive to nullifying fire risk, extending transformer life, environmental friendliness and sustainability. The use of ester-immersed transformers goes back a few decades, so experience in monitoring and maintenance is increasing rapidly, as is testing for compatibility with transformer materials of construction.
Now days, dielectric esters (natural and synthetic) are not only an alternative to mineral oils, but a primary choice for transformer owners sensitive to nullifying fire risk, extending transformer life, environmental friendliness and sustainability. The use of ester-immersed transformers goes back a few decades, so experience in monitoring and maintenance is increasing rapidly, as is testing for compatibility with transformer materials of construction.
#Asset #Sustainability #Solutions
Fabio Scatiggio
Senior Technical Advisor – A&A Fratelli Parodi (Italy)
Main session (AUDITORIUM)
Power transformers play a crucial role in electric power transmission and distribution systems, being both expensive and strategically important. Their prolonged efficient operation is essential to prevent long-term power outages. With tens of thousands of transformers worldwide approaching the end of their typical 30-40 year lifespan, the question of recycling becomes significant. Remarkably, around 95% of a power transformer’s materials could potentially be recycled. |
Power transformers play a crucial role in electric power transmission and distribution systems, being both expensive and strategically important. Their prolonged efficient operation is essential to prevent long-term power outages. With tens of thousands of transformers worldwide approaching the end of their typical 30-40 year lifespan, the question of recycling becomes significant. Remarkably, around 95% of a power transformer’s materials could potentially be recycled. |
#Asset #Sustainability #Solutions #R&D
Alfredo Ortiz-Fernández
Professor at University of Cantabria (Spain)
Main session (AUDITORIUM)
Since its introduction to the market nearly thirty years ago, the use of natural ester liquids as an alternative to mineral oil as a dielectric insulating liquid in transformers has continued to grow. While mineral oil has been the most commonly used insulation liquid in transformers for many decades, certain characteristics of mineral oil, such as its relatively low fire point and risk of fire, have driven scientists to seek alternative solutions. Natural ester liquids, which are derived from vegetable oils, have become widely accepted as a reliable and sustainable alternative to mineral oil due, in part, to its significantly higher fire point, and therefore lower fire risk, as well as its more favorable environmental characteristics compared to mineral oil. The chemical nature of natural ester liquids is different than mineral oil, and as a result there are certain differences in performance characteristics as they relate to transformers. One such difference is the performance in cold weather. Some regions of the world expose transformers to temperatures below the low temperatures of -20 °C and -25 °C considered normal service conditions according to international standards such as IEEE Std C57.12.00™ and IEC 60076-1, respectively. This paper discusses the performance of natural ester liquids at low temperatures and compares and contrasts that behavior to the mineral oil characteristics with which many transformer users are familiar.
Since its introduction to the market nearly thirty years ago, the use of natural ester liquids as an alternative to mineral oil as a dielectric insulating liquid in transformers has continued to grow. While mineral oil has been the most commonly used insulation liquid in transformers for many decades, certain characteristics of mineral oil, such as its relatively low fire point and risk of fire, have driven scientists to seek alternative solutions. Natural ester liquids, which are derived from vegetable oils, have become widely accepted as a reliable and sustainable alternative to mineral oil due, in part, to its significantly higher fire point, and therefore lower fire risk, as well as its more favorable environmental characteristics compared to mineral oil. The chemical nature of natural ester liquids is different than mineral oil, and as a result there are certain differences in performance characteristics as they relate to transformers. One such difference is the performance in cold weather. Some regions of the world expose transformers to temperatures below the low temperatures of -20 °C and -25 °C considered normal service conditions according to international standards such as IEEE Std C57.12.00™ and IEC 60076-1, respectively. This paper discusses the performance of natural ester liquids at low temperatures and compares and contrasts that behavior to the mineral oil characteristics with which many transformer users are familiar.
#Asset #Sustainability #Resilience
Bruce Forsyth
Director, Global Application Eng. - Cargill (USA)
Università del dialogo Room
Q&A Session
Università del dialogo Room
Lunch
Main session (AUDITORIUM)
#Asset #Solutions #R&D
Fabrizio Ferrari
Senior advisor (Italy)
FOCUS TABLES & PARALLEL SESSIONS
EXXONMOBIL Slot
ExxonMobil is proud to announce the launch of its new transformer oil called UnivoltTM, an inhibited naphthenic oil, engineered to optimize transformer performance through excellent cooling, insulation and long-term stability. UnivoltTM is manufactured at one of ExxonMobil’s world-scale asset in Europe, bringing supply reliability and operational excellence to the transformer oil market
ExxonMobil is proud to announce the launch of its new transformer oil called UnivoltTM, an inhibited naphthenic oil, engineered to optimize transformer performance through excellent cooling, insulation and long-term stability. UnivoltTM is manufactured at one of ExxonMobil’s world-scale asset in Europe, bringing supply reliability and operational excellence to the transformer oil market
- Evert Feyaerts, Fluids Technology Associate – ExxonMobil
- Francois Sinechal, Market Development Manager, Transformer Oil – ExxonMobil
Main session (AUDITORIUM)
Digital twins are powerful tools to support decision making, but how will they help in a world of rapid system growth in electricity infrastructure: investment in data centers and renewables; increased use of automation and AI/ML; demands for increased reliability of supply? In this paper we look at what makes a ‘good’ digital twin, and what can lead to a poor implementation – an ‘evil twin’ – by looking at the construction of a twin, the automated analyses, and the connection between twin predictions and reality. We know that a digital twins is a model, and that all models are ‘wrong’, but how far wrong does it have to be before it becomes ‘unacceptably wrong’? Understanding why and how a digital twin is wrong is crucial to both its acceptability and its successful application: someone has to know what is going on!
Digital twins are powerful tools to support decision making, but how will they help in a world of rapid system growth in electricity infrastructure: investment in data centers and renewables; increased use of automation and AI/ML; demands for increased reliability of supply? In this paper we look at what makes a ‘good’ digital twin, and what can lead to a poor implementation – an ‘evil twin’ – by looking at the construction of a twin, the automated analyses, and the connection between twin predictions and reality. We know that a digital twins is a model, and that all models are ‘wrong’, but how far wrong does it have to be before it becomes ‘unacceptably wrong’? Understanding why and how a digital twin is wrong is crucial to both its acceptability and its successful application: someone has to know what is going on!
#Asset #Risk #Solutions
Dr Tony McGrail
Solutions Director - DOBLE Engineering (US)
FOCUS TABLES & PARALLEL SESSIONS
Control & prevent moisture presence
Enrico Cenghialta
Service Manager – COMEM (Italy)
Main session (AUDITORIUM)
Since voltage regulating distribution transformers (VRDT) have become a standard asset available for distribution systems operators, a various voltage regulation algorithms have been developed and have found their way into application. This article reviews the main algorithms, comparing them from both grid planning and operational perspectives, and provides a techno-economic analysis of single- versus three-phase power-independent, dynamic set-point regulation.
Since voltage regulating distribution transformers (VRDT) have become a standard asset available for distribution systems operators, a various voltage regulation algorithms have been developed and have found their way into application. This article reviews the main algorithms, comparing them from both grid planning and operational perspectives, and provides a techno-economic analysis of single- versus three-phase power-independent, dynamic set-point regulation.
# Risk #Solutions
Franco Pizzutto
Business Development Manager - Maschinenfabrik Reinhausen (Germany)
FOCUS TABLES & PARALLEL SESSIONS
Comprehensive Online Monitoring of Power Transformers DGA + PD
Stève Belin
Business Development Manager Europe for DGA – Megger
Università del dialogo Room
Coffee & networking with sponsors
Main session (AUDITORIUM)
EDF have its proper software to share diagnosis data for all the transformer fleet (nuclear, hydro and fossil thermal) named Cocpitt. It’s a web application, so all the edf user can access easily to their transformers (power plant, engineering, R&D, …).
It manage static information such manufacturer, power, voltage levels, … and also diagnosis data : electrical measurement, event during operation and dissolved gas measurements from lab for around 1 500 transformers.
Sea-Marconi is the official lab for EDF’s transformers, and a transfer data protocol has been implements between the lab and EDF to receive oil analysis every days. This presentation show the main aspects of this daily transfer (name, time, …) and the file content to identify transformers and associate the measurements.
EDF have its proper software to share diagnosis data for all the transformer fleet (nuclear, hydro and fossil thermal) named Cocpitt. It’s a web application, so all the edf user can access easily to their transformers (power plant, engineering, R&D, …).
It manage static information such manufacturer, power, voltage levels, … and also diagnosis data : electrical measurement, event during operation and dissolved gas measurements from lab for around 1 500 transformers.
Sea-Marconi is the official lab for EDF’s transformers, and a transfer data protocol has been implements between the lab and EDF to receive oil analysis every days. This presentation show the main aspects of this daily transfer (name, time, …) and the file content to identify transformers and associate the measurements.
#Asset #Solution
Frank Thomas
Power Transformer Diagnostics Expert - EDF (France)
FOCUS TABLES & PARALLEL SESSIONS
Focus Table: MOISTURE CARE
Focus on how to prevent and control moisture presence in transformer oil
Moderated by: COMEM
Main session (AUDITORIUM)
#Sustainability #R&D #Solution
Dr Luca Pezzini
AI & Storytelling Expert - Università di Torino (Italy)
FOCUS TABLES & PARALLEL SESSIONS
Focus Table: CORROSION PHENOMENA
A focus on the main corrosion mechanisms in transformers, with particular attention to corrosive sulfur and its effects on copper and silver. Case studies, diagnostic techniques, and mitigation strategies will be presented. An essential deep dive for ensuring the reliability and maintenance of insulating fluids.
Moderated by:
Riccardo Maina
Lab Manager - Sea Marconi (Italy)
Main session (AUDITORIUM)
Closing of the day
Networking with sponsors in Università del dialogo Room
Transfer by bus to the Madama Palace of Turin. Meeting in front of SERMIG entrance
Visit to Palazzo Madama by night
Transfer by bus to Circolo della Stampa (Palazzo Ceriana Mayneri) for dinner
Networking dinner
Transfer by bus to SERMIG (for participants)
Transfer by bus to Hotel Antica Dogana (for speakers)
"Università del dialogo" Room
Welcome coffee in "Università del dialogo" Room wth Sponsors
Main session (AUDITORIUM)
This study examines insulating oils, hereafter referred to as transformer oils, available in the Middle Eastern market, whether produced regionally or imported from global suppliers. These transformer oils are marketed and sold in accordance with the latest IEC 60296 standard, Edition 5 (2020), which specifies requirements for Fluids for Electrotechnical Applications – Mineral Insulating Oils for Electrical Equipment. The focus of this study is specifically on transformer oils classified and declared as compliant with IEC 60296 TVUB (T = Transformers, V = Virgin (new) oil, U = Uninhibited, and B = Type B) The investigation aims to determine whether any undeclared additives, including antioxidant inhibitors, are present in these transformer oils, despite being labelled and sold as “uninhibited transformer oil” containing “no undeclared additives.”
This study examines insulating oils, hereafter referred to as transformer oils, available in the Middle Eastern market, whether produced regionally or imported from global suppliers. These transformer oils are marketed and sold in accordance with the latest IEC 60296 standard, Edition 5 (2020), which specifies requirements for Fluids for Electrotechnical Applications – Mineral Insulating Oils for Electrical Equipment. The focus of this study is specifically on transformer oils classified and declared as compliant with IEC 60296 TVUB (T = Transformers, V = Virgin (new) oil, U = Uninhibited, and B = Type B) The investigation aims to determine whether any undeclared additives, including antioxidant inhibitors, are present in these transformer oils, despite being labelled and sold as “uninhibited transformer oil” containing “no undeclared additives.”
#Risk #Solution #R&D
Nils Herlenius
Senior Technical Consultant - FARABI PETROCHEMICALS (Saudi Arabia)
FOCUS TABLES & PARALLEL SESSIONS
Focus Table: Insulating Liquid Treatment Techniques
Focus on various techniques for treating insulating liquids and transformers to address specific “pathologies” of insulating liquids, with the aim of extending transformer lifespan. Methods and procedures such as replacing mineral oil with natural ester fluids or applying post-filling treatments to transformers will be discussed. The session will showcase application cases and targeted solutions.
Moderated by:
Riccardo Actis
On-site services Director - Sea Marconi (Italy)
Main session (AUDITORIUM)
#Asset #Risk #Solutions
Riccardo Maina
Lab Manager - Sea Marconi (Italy)
FOCUS TABLES & PARALLEL SESSIONS
Focus Table: TRANSFORMER DIAGNOSTIC AND PROTECTION
Overview of advanced solutions for monitoring, early fault detection, and transformer protection The session will present sensors, algorithms, and integrated approaches to enhance reliability and extend asset lifespan.
Fabrizio Ferrari
Senior advisor (Italy)
Main session (AUDITORIUM)
The issue of sulfur corrosion in transformers, long known for its impact on copper due to compounds like DBDS, now increasingly concerns silver. Although silver corrosion can pose severe risks, it has received less attention due to its lower frequency and limited detection methods. Recent incidents highlight gaps in understanding the sources and mechanisms of sulfur-induced corrosion, especially from elemental sulfur (S₈), found in both mineral and ester-based insulating liquids.
This paper investigates the kinetics and mechanisms of silver sulfide formation, emphasizing the critical influence of the oil-to-silver surface ratio. Even low ppm levels of S₈ may lead to significant deposits. Current standards and test methods (e.g., ASTM D1275, IEC 62697) often fail to replicate real transformer conditions or identify specific corrosive species.
The authors propose adaptations to test protocols and introduce innovative oil treatment solutions and silver-plated contact cleaning techniques developed by the Nikola Tesla Institute. These methods effectively remove elemental sulfur without stripping beneficial additives like antioxidants, offering promising short- and long-term mitigation strategies for the industry.
The issue of sulfur corrosion in transformers, long known for its impact on copper due to compounds like DBDS, now increasingly concerns silver. Although silver corrosion can pose severe risks, it has received less attention due to its lower frequency and limited detection methods. Recent incidents highlight gaps in understanding the sources and mechanisms of sulfur-induced corrosion, especially from elemental sulfur (S₈), found in both mineral and ester-based insulating liquids.
This paper investigates the kinetics and mechanisms of silver sulfide formation, emphasizing the critical influence of the oil-to-silver surface ratio. Even low ppm levels of S₈ may lead to significant deposits. Current standards and test methods (e.g., ASTM D1275, IEC 62697) often fail to replicate real transformer conditions or identify specific corrosive species.
The authors propose adaptations to test protocols and introduce innovative oil treatment solutions and silver-plated contact cleaning techniques developed by the Nikola Tesla Institute. These methods effectively remove elemental sulfur without stripping beneficial additives like antioxidants, offering promising short- and long-term mitigation strategies for the industry.
#Asset #Risk #R&D
Dr Jelena Lukic
Assist. dir. for science, innovations and technological development - NIkola Tesla Institute (Serbia)
FOCUS TABLES & PARALLEL SESSIONS
DOBLE Overview
Simone Piana
COO – Doble International
Main session (AUDITORIUM)
Q&A Session
FOCUS TABLES & PARALLEL SESSIONS
From Periodic Checks to Continuous Insight: Extending Transformer Life with Precise PD Localization
Marcelo Werneck, > Short CV
VP of Business Development – Optics11
Torino Room
Coffee & networking with sponsors
Main session (AUDITORIUM)
To date, the Capacity Market requires power producers to minimize generation unit unavailability. At the same time, lead times for spare parts procurement have significantly increased. As a result, a shift in maintenance strategy is necessary—from a corrective approach to a preventive one. This work examines the economic impact of a failure in the step-up transformer at the Sermide Power Plant, emphasizing the critical role of transformer oil analysis in preventive maintenance strategies. Transformer oil testing is an essential diagnostic tool that, together with electrical tests, allows early detection of insulation degradation and other faults, significantly reducing the risk of unexpected failures. Strategic recommendations are proposed to optimize maintenance approaches, aiming not only to enhance system reliability and reduce downtime but also to improve personnel safety, protect the environment, and maximize economic outcomes. This work provides valuable insights for energy operators and policymakers seeking to balance cost efficiency with operational resilience in an increasingly complex market environment.
To date, the Capacity Market requires power producers to minimize generation unit unavailability. At the same time, lead times for spare parts procurement have significantly increased. As a result, a shift in maintenance strategy is necessary—from a corrective approach to a preventive one. This work examines the economic impact of a failure in the step-up transformer at the Sermide Power Plant, emphasizing the critical role of transformer oil analysis in preventive maintenance strategies. Transformer oil testing is an essential diagnostic tool that, together with electrical tests, allows early detection of insulation degradation and other faults, significantly reducing the risk of unexpected failures. Strategic recommendations are proposed to optimize maintenance approaches, aiming not only to enhance system reliability and reduce downtime but also to improve personnel safety, protect the environment, and maximize economic outcomes. This work provides valuable insights for energy operators and policymakers seeking to balance cost efficiency with operational resilience in an increasingly complex market environment.
#Asset # Risk
Giulia Frattini
I&C, Electrical maintenance manager – A2A Gencogas (Italy)
FOCUS TABLES & PARALLEL SESSIONS
Transformer Innovation: advanced systems for more efficiency
Sergio Colombi – R&D Manager – Tecsystem (Italy)
Main session (AUDITORIUM)
Installing on-line monitoring systems can significantly improve the reliability of transformers and, more broadly, electrical networks. However, when applied to high-voltage bushings, it is crucial to recognize that these monitoring systems typically connect to the main insulation through the test or voltage tap. This requires disconnecting the original grounding cover, introducing new components and a measuring impedance, thereby altering the original mechanical and electrical design. Such modifications introduce potential risks that must be carefully evaluated and mitigated before implementing any monitoring solution. If the bushing is not solidly grounded, it is essential to maintain strict control over the voltage to ensure that neither operating nor transient voltages reach hazardous levels. This consideration is especially critical in environments subject to transient stress or frequent switching operations where it is essential to verify that the voltage protection responds quickly enough to safeguard the bushing and ensure long-term reliability. Additionally, the mechanical integration of monitoring equipment is of utmost importance. The design and sealing of monitoring components must effectively prevent contamination—such as moisture—from entering the tap or any connection points and the materials used in the monitoring equipment should be compatible with those of the bushing to avoid galvanic corrosion.
Installing on-line monitoring systems can significantly improve the reliability of transformers and, more broadly, electrical networks. However, when applied to high-voltage bushings, it is crucial to recognize that these monitoring systems typically connect to the main insulation through the test or voltage tap. This requires disconnecting the original grounding cover, introducing new components and a measuring impedance, thereby altering the original mechanical and electrical design. Such modifications introduce potential risks that must be carefully evaluated and mitigated before implementing any monitoring solution. If the bushing is not solidly grounded, it is essential to maintain strict control over the voltage to ensure that neither operating nor transient voltages reach hazardous levels. This consideration is especially critical in environments subject to transient stress or frequent switching operations where it is essential to verify that the voltage protection responds quickly enough to safeguard the bushing and ensure long-term reliability. Additionally, the mechanical integration of monitoring equipment is of utmost importance. The design and sealing of monitoring components must effectively prevent contamination—such as moisture—from entering the tap or any connection points and the materials used in the monitoring equipment should be compatible with those of the bushing to avoid galvanic corrosion.
#Asset #Risk #Solution
Flavio Tarallo
EU Transformers Digital Manager - Hitachi Energy SpA (Italy)
FOCUS TABLES & PARALLEL SESSIONS
Using Synthetic Ester in Distribution Transformers
James Reid – Technical Manager -Shell MIDEL & MIVOLT (UK)
Main session (AUDITORIUM)
A significant step toward broader adoption of Dielectric Frequency Response (DFR) for condition assessment of capacitance-graded bushings was the release of IEEE C57.12.200 in 2022. Since its publication, further operational experience has been gathered.
Baseline DFR testing on newly installed bushings is a well-established and recommended practice, as it supports more accurate assessments during service life. However, it is crucial to recognize the impact of fringing effects, which arise due to differences in the electrical environment when testing bushings in the field versus routine factory testing as specified in bushing standards.
While IEEE C57.12.200 includes examples of bushing degradation and corresponding analysis techniques, additional insights have emerged from extensive field application of DFR, applicable to both oil-impregnated and dry-type designs. These findings underscore the value of testing at 1400 V, which has been shown to yield more reliable results in evaluating bushing condition compared to tests conducted at lower voltages.
Keywords—Bushings, OIP, RIP, RIS, DFR, Capacitance, Dissipation Factor, Insulation Power Factor, tanδ
A significant step toward broader adoption of Dielectric Frequency Response (DFR) for condition assessment of capacitance-graded bushings was the release of IEEE C57.12.200 in 2022. Since its publication, further operational experience has been gathered.
Baseline DFR testing on newly installed bushings is a well-established and recommended practice, as it supports more accurate assessments during service life. However, it is crucial to recognize the impact of fringing effects, which arise due to differences in the electrical environment when testing bushings in the field versus routine factory testing as specified in bushing standards.
While IEEE C57.12.200 includes examples of bushing degradation and corresponding analysis techniques, additional insights have emerged from extensive field application of DFR, applicable to both oil-impregnated and dry-type designs. These findings underscore the value of testing at 1400 V, which has been shown to yield more reliable results in evaluating bushing condition compared to tests conducted at lower voltages.
Keywords—Bushings, OIP, RIP, RIS, DFR, Capacitance, Dissipation Factor, Insulation Power Factor, tanδ
#Asset #Risk #Solution
Dr. Peter Werelius
Senior Application Specialist - Megger Sweden AB (Sweden)
FOCUS TABLES & PARALLEL SESSIONS
A&A Fratelli Parodi Dielectric Esters : the frontrunner of sustainability
Giorgio Campi – Business and technical development – Fratelli Parodi (Italy)
Main session (AUDITORIUM)
#Asset #Risk #R&D
Letizia De Maria
Senior researcher - RSE( Italy)
FOCUS TABLES & PARALLEL SESSIONS
OMICRON Slot
Main session (AUDITORIUM)
Lunch
Main session (AUDITORIUM)
Objective: The degradation of cellulose-based solid insulation predominantly constrains the operational lifespan of power transformers. This presentation focuses on two critical aging accelerants—oxygen and moisture—detailing their ingress mechanisms, impact on dielectric performance, and long-term implications for asset reliability.
Methods: We will present a dual mitigation strategy that includes: (1) preventive measures using advanced oil preservation systems (e.g., self-regenerating breathers, membrane barriers), and (2) real-time diagnostics through embedded sensors and predictive algorithms. These algorithms estimate moisture in paper (MIP), forecast insulation aging, and detect critical thresholds, such as bubble formation and breakdown voltage decline. The integration of direct winding temperature monitoring via fiber optic sensors is emphasized as a prerequisite for accurate thermal modeling and algorithmic precision.
Results: We will showcase real case studies where the implementation of these combined strategies has led to measurable improvements in transformer reliability, including reduced total cost of ownership and extended operational life.
Conclusions: We will illustrate how combining physical barriers with intelligent monitoring enhances transformer resilience and supports condition-based maintenance strategies.
Objective: The degradation of cellulose-based solid insulation predominantly constrains the operational lifespan of power transformers. This presentation focuses on two critical aging accelerants—oxygen and moisture—detailing their ingress mechanisms, impact on dielectric performance, and long-term implications for asset reliability.
Methods: We will present a dual mitigation strategy that includes: (1) preventive measures using advanced oil preservation systems (e.g., self-regenerating breathers, membrane barriers), and (2) real-time diagnostics through embedded sensors and predictive algorithms. These algorithms estimate moisture in paper (MIP), forecast insulation aging, and detect critical thresholds, such as bubble formation and breakdown voltage decline. The integration of direct winding temperature monitoring via fiber optic sensors is emphasized as a prerequisite for accurate thermal modeling and algorithmic precision.
Results: We will showcase real case studies where the implementation of these combined strategies has led to measurable improvements in transformer reliability, including reduced total cost of ownership and extended operational life.
Conclusions: We will illustrate how combining physical barriers with intelligent monitoring enhances transformer resilience and supports condition-based maintenance strategies.
#Asset # Risk #Solution
Enrico Cenghialta
Service Manager - COMEM (Italy)
Fiorenzo Stevanato
Technical Consultant, COMEM (Italy)
FOCUS TABLES & PARALLEL SESSIONS
DASOTEC: products, services and solutions overview
David Somvi, President of DASOTEC (Italy)
Main session (AUDITORIUM)
#Asset #Risk #Solutions
Senja Leivo
Senior Industry expert - Vaisala Oyj (Finland)
Main session (AUDITORIUM)
Thermal imaging facilitates the identification of abnormal temperature patterns, which may indicate failure modes such as insulation degradation, loose connections, or component malfunctions. To accurately diagnose these issues, additional information from the transformer is required. By combining online thermal data with other transformer diagnostics, such as Dissolved Gas Analysis (DGA) and bushing monitoring, within a single device, events can be correlated for expedited diagnostics. Presentation will discuss the practical experiences of deploying the solution and what to consider for online application of Thermal imaging
Thermal imaging facilitates the identification of abnormal temperature patterns, which may indicate failure modes such as insulation degradation, loose connections, or component malfunctions. To accurately diagnose these issues, additional information from the transformer is required. By combining online thermal data with other transformer diagnostics, such as Dissolved Gas Analysis (DGA) and bushing monitoring, within a single device, events can be correlated for expedited diagnostics. Presentation will discuss the practical experiences of deploying the solution and what to consider for online application of Thermal imaging
# Risk #Solutions
Christopher O'Donnell
Technical Applications Engineer - GE Vernova (GB)
Main session (AUDITORIUM)
Q&A Session
Torino Room
Coffee & networking with sponsors
Main session (AUDITORIUM)
Dissolved Gas Analysis (DGA) has become the primary technique for transformer condition assessment because diagnostic reliability has increased in step with advances in measurement control. Early flame and Orsat-type tests, and later the Buchholz relay, provided qualitative indication only.
Mid-century mass spectrometry and thermal-conductivity detection enabled species identification, yet uncontrolled partitioning to tank headspace and variable sampling limited quantitative confidence. The inflection point was engineering the measurement chain: controlled extraction (vacuum degassing, gas stripping), traceable sampling procedures, and automated headspace gas chromatography (HS-GC) using dedicated, precision-filled, crimp-sealed vials with defined phase ratios.
Standardized methods (IEC 60567; ASTM D3612) translated this control into reproducible measurements and improved inter-laboratory comparability. Resulting datasets support multicomponent trending, ratio/graph diagnostics, and multivariate/statistical classifiers, enhancing discrimination among partial discharge, thermal, and arcing faults while reducing false alarms and enabling earlier interventions. The approach applies to mineral oils and alternative liquids (natural/synthetic esters, silicone) when procedures are adapted to fluid properties and solubility behavior. Overall, the transition from rudimentary to controlled headspace links sampling integrity and repeatability to quantitative DGA and defensible fault classification—explaining why DGA works and why it remains foundational to predictive maintenance for power transformers. Index Terms— Dissolved Gas Analysis (DGA), transformer diagnostics, headspace gas chromatography (HS-GC), sampling integrity, precision-filled vials, IEC 60567, ASTM D3612, predictive maintenance
Dissolved Gas Analysis (DGA) has become the primary technique for transformer condition assessment because diagnostic reliability has increased in step with advances in measurement control. Early flame and Orsat-type tests, and later the Buchholz relay, provided qualitative indication only.
Mid-century mass spectrometry and thermal-conductivity detection enabled species identification, yet uncontrolled partitioning to tank headspace and variable sampling limited quantitative confidence. The inflection point was engineering the measurement chain: controlled extraction (vacuum degassing, gas stripping), traceable sampling procedures, and automated headspace gas chromatography (HS-GC) using dedicated, precision-filled, crimp-sealed vials with defined phase ratios.
Standardized methods (IEC 60567; ASTM D3612) translated this control into reproducible measurements and improved inter-laboratory comparability. Resulting datasets support multicomponent trending, ratio/graph diagnostics, and multivariate/statistical classifiers, enhancing discrimination among partial discharge, thermal, and arcing faults while reducing false alarms and enabling earlier interventions. The approach applies to mineral oils and alternative liquids (natural/synthetic esters, silicone) when procedures are adapted to fluid properties and solubility behavior. Overall, the transition from rudimentary to controlled headspace links sampling integrity and repeatability to quantitative DGA and defensible fault classification—explaining why DGA works and why it remains foundational to predictive maintenance for power transformers. Index Terms— Dissolved Gas Analysis (DGA), transformer diagnostics, headspace gas chromatography (HS-GC), sampling integrity, precision-filled vials, IEC 60567, ASTM D3612, predictive maintenance
#R&D #Solution
Marius Grisaru
Senior transformer and oil global consultant - Marius Grisaru Oil & Transformer Solutions (Israel)
Main session (AUDITORIUM)
Dissolved Gas Analysis (DGA) is currently the most effective tool for assessing the condition of the active part of an oil-immersed transformer in operation. The primary objective for the operator is to evaluate the operational risk in order to implement appropriate corrective maintenance actions. A new method, developed jointly by IREQ and EDF, builds upon the work presented in CIGRE Technical Brochure 771. This approach is compared against existing interpretation schemes from IEC and IEEE, highlighting its potential advantages and practical relevance.
Dissolved Gas Analysis (DGA) is currently the most effective tool for assessing the condition of the active part of an oil-immersed transformer in operation. The primary objective for the operator is to evaluate the operational risk in order to implement appropriate corrective maintenance actions. A new method, developed jointly by IREQ and EDF, builds upon the work presented in CIGRE Technical Brochure 771. This approach is compared against existing interpretation schemes from IEC and IEEE, highlighting its potential advantages and practical relevance.
#Asset #Risk #Solution #R&D
Luc Paulhiac
Maintenance senior expert for the French Nuclear fleet - EDF (France)
Main session (AUDITORIUM)
Dissolved Gas Analysis (DGA) in the insulation oil of high-power, high-voltage electrical quipments has long been one of the most widely used and reliable diagnostic methods. Its purpose is to prevent failures that could even irreparably damage the equipment, rendering it unavailable. This analysis is based on the evaluation of the oil content of certain hydrocarbon, and non-hydrocarbon gases, which allows for the early diagnosis of dielectric or thermal anomalies and the determination of whether one or both anomalies affect the organic insulation (typically cellulose). However, the diagnostic framework provided by DGA alone is not enough to provide a definitive outcome, but it is essential in guiding subsequent electrical investigations, highlighting the importance of synergy between chemical specialists and electrical measurement specialists. This article discusses a real-world case in which, faced with a presumed thermal anomaly highlighted by DGA, a series of electrical measurements are identified to complete the diagnosis.
Dissolved Gas Analysis (DGA) in the insulation oil of high-power, high-voltage electrical quipments has long been one of the most widely used and reliable diagnostic methods. Its purpose is to prevent failures that could even irreparably damage the equipment, rendering it unavailable. This analysis is based on the evaluation of the oil content of certain hydrocarbon, and non-hydrocarbon gases, which allows for the early diagnosis of dielectric or thermal anomalies and the determination of whether one or both anomalies affect the organic insulation (typically cellulose). However, the diagnostic framework provided by DGA alone is not enough to provide a definitive outcome, but it is essential in guiding subsequent electrical investigations, highlighting the importance of synergy between chemical specialists and electrical measurement specialists. This article discusses a real-world case in which, faced with a presumed thermal anomaly highlighted by DGA, a series of electrical measurements are identified to complete the diagnosis.
#Asset #Risk #Solution
Claudio Serafino
Independent Consultant - ex Terna (Italy)
Giuseppe Inzirillo
Omicron (Italy)
Main session (AUDITORIUM)
Closing of the meeting
Visit to Sea Marconi Company Headquarter
Visit to the headquarters of the Sea Marconi (via Ungheria 20, Collegno – Turin)
Please note that transportation to the Sea Marconi venue is the responsibility of each participant
6 Thematic areas
Sustainability
Sustainability advancements throughout the product lifecycle will be a key focus of the event
Asset
Knowing the equipment means understanding its role, operational history, and differences with assets in the same or other fleet
Risk
In-depth knowledge of risks, with significant financial impacts, is crucial for informed asset management decisions
Solution
Understanding techniques, therapies, tools, and strategies for proper asset management and efficiency
R & D
Research and development are key to progressing, addressing new challenges, and finding innovative solutions
Resilience
My Transfo 2025 will explore strategies, technologies, and best practices to enhance asset resilience and optimize performance over time
Interventions divided by types
Choose at any time which intervention to attend (Piemonte room/Agnelli room) based on the title or type of the intervention
- MasterClass (high-level educational content)
- General session (cross-cutting and generalist content)
- Case study (real-life/research case presentations)
- Focus Tables (Interactive sessions where attendees engage directly with industry experts on specific topics)
- Round table (panel discussions)
- Sponsored (sponsored content)
- Q&A session
James Reid holds a MSc Reliability Engineering & Safety Management from Heriot Watt University and a BEng Chemical Engineering from University of Edinburgh. He has been a chartered Chemical Engineer with the IChemE since 2002 and is also a member of ASTM. Based in the UK, James leads the technical applications team providing global support for all the ester-based products manufactured by global specialty materials company M&I Materials, including the MIDEL range of dielectric liquids. Prior to joining the technical team at M&I Materials in 2019, James has over two decades experience in technical and operational management roles with major UK utility, leading international chemical, and specialist oil companies.
Jean SANCHEZ is senior transformer engineer at EDF, French main generation utility, mostly on investigations, tests and its associated diagnosis, Factory Acceptance Tests, HV bushings, fleet assessments. He’s involved in IEC and CIGRE working groups. He completed a PhD degree on power transformers fault diagnosis in 2011 with a French power transformer reparation factory, TSV.
Ufuk Kivrak has BS and MS degrees in mechanical engineering. He has more than 25 years of industrial experience in transformers and power grid industries. He has worked for ABB in several management positions in Turkey, Thailand and Switzerland. He has led Supply Chain Management organization of ABB Transformer business globally from 2003 to 2015, which included explosive growth of transformer market from 2003 to 2008, which was followed by a market collapse in 2009 and onwards. In 2015, he has joined Alstom Grid as VP-Strategic Sourcing and continued as Head of Strategic Sourcing in GE Grid Solutions after Alstom was acquired by GE. Currently he is Managing Director of SCM Consulting GmbH.
Armando Pastore received his mechanical engineering master’s degree from University of Naples Federico II. After the graduation he had different experiences in automotive and railway sectors. He joined the power grid business sector in 2012 working as R&D mechanical engineer and product industrialization with special focus on transformer and wall bushings for HVDC application. Since 2015 he has been working at GE Grid Solution covering different roles as engineering manufacturing, production, technical and product manager. In 2022 he has been appointed chair for Italy SC 36A – Insulated bushings.
Riccardo Actis was born in 1969 He holds a degree in mechanical engineering, obtained from Polytechnic University of Turin in 1995. Today he is the Global Operation Manager of the On-Site Service Department at Sea Marconi, with more than 25 years of experience in organization and follow-up of on-site work activities, in Italy, France, Spain, and other countries (KSA, Argentina, Uruguay, Japan). Riccardo has a deep knowledge of condition-based maintenance, as well as treatment and decontamination techniques of insulating liquids.
Vojko Mrdic has been working as applications engineer in transformer testing group at DV Power, a well-known manufacturer of test and measurement equipment for electric power industry. His responsibilities include development of new methods for transformer testing, providing technical support to DV Power customers, as well as performing on-site field testing. Before joining DV Power 13 years ago, he had been working at the large apparatus manufacturer Energoinvest RAOP for 1 year as a junior engineer in circuit breakers and instrument transformers development department. Vojko has a BSc diploma degree in electrical engineering from the University of East Sarajevo.
Roberto Fernández is an experienced Electrical Engineer who has spent most of his career on the transformer design field and R&D activities focused on the magneto-electric and thermal design for a wide range of transformer applications. He is member of the IEC, CIGRE and several national and international working groups. He is currently the Application Technical Leader at Cargill Bioindustrial.
Field Service engineer since 1976 working for Merlin-Gerin on GIS Switchgear, Schneider Electric Equipment, JST Tranformateurs , following in SIEMENS as African Aera sales Manager and JST Maintenance as business development
Dr. Sameera completed his Bachelor of Science in Engineering (Honors) and Master of Science in Electrical and Electronic Engineering at the University of Peradeniya, Sri Lanka. After graduating, he worked as a High Voltage Laboratory Instructor at the University of Peradeniya and as a Research Assistant in the Condition Monitoring Team at the Engineering Design Centre. He then pursued his PhD at the University of Queensland, Australia. Following that, he joined the same university as a postdoctoral research fellow, where he investigated the use of drone footage and Machine Learning technologies for detecting overhead conductor defects. After completing his fellowship, he became a consultant at EA Technology, one of the world’s leading asset management consultancy service providers. Currently, he works as an asset strategy engineer at Energy Queensland, the largest distribution network service provider in Australia.
Vander Tumiatti is the founder and owner of SEA MARCONI GROUP (since 1968 – www.seamarconi.com), Torino, Italy, an international company that is involved in research, technologies, products, and services for energy and environment. He has developed BAT and BEP Sustainable Solutions for Life Cycle Management (LCM) of insulating liquids and transformers focalized on inventory, control, diagnosis, decontamination, depolarization (DBDS, TCS, and polar compounds) and dehalogenation / detoxification (PCBs/POPs). He holds more than 40 international patents and is the author of many international technical and scientific publications. He has been the Assistant Secretary of IEC TC10 from 2000 to 2024. He is also a member of several international groups, with major participation in technical normative activities (CEN, IEC, CIGRE, IEEE). In 2009 June, he received – «1906 Award», the IEC’s award for “the precious contribution to the understanding of the potentially corrosive behaviour of mineral insulating oil used in power transformers and for his discoveries, recognized worldwide, in the development of diagnostic chemical analyses”. He also received the «Alessandro Volta» award as expert since 1978 in the standardization activities. He was the coordinator of European and national research projects in the field of circular and granular bioeconomy (BIOENPRO®). He also inventor of My Transfo Meeting since 2002 (www.mytransfo.com)
Dr Bruce Pahlavanpour BSC, DIC, PHD from Imperial College, London. Recently he joined Ergon International as consultant. Dr Pahlavanpour was Chief Specialist for the Electrical industry application group within Nynas TDMS.
Fabio Scatiggio was born in Venezia, Italy, in 1957.