Unlocked by Ergon – Transformer oil – e-lesson #16 – Dissolved gas analysis of mineral oils
Hosted by: CS Narasimhan / Master's level
Join us on May 28th at 2 pm CET at Transformers Academy!
This is lesson #16 in the Transformer oil course, authored and presented by Mr. C. S. Narasimhan. Here you can save your seat for an on-demand session.
Lesson provides an overview of DGA, a critical tool for transformer maintenance. It explains the significance of DGA in detecting faults and monitoring transformer health. The lesson covers the mechanisms and chemistry behind gas formation in transformers, highlighting the role of free radicals and the energetics involved. It then introduces various interpretation methodologies for DGA, including ratio-based methods and graphical techniques like the dual triangle approach. The lesson emphasizes the importance of considering transformer-specific factors when interpreting DGA data, as typical gas levels can vary. It also touches on the limitations of existing methods and the potential for AI-based algorithms to support fault diagnosis. The lesson concludes by discussing future directions in DGA, including the evolution of testing methods and the complementary role of other diagnostic techniques.
The content of this lesson is fully vendor agnostic but it is sponsored by Ergon.
The lesson is conducted on the Mater’s level and after the live broadcasting, it stays available on demand. It is intended for utility engineers/chemists, transformer and oil manufacturers, students and faculty of educational institutes, oil testing laboratories, utility staff, etc.
The lesson #16 deals with DGA of mineral oils – Chemistry of formation of different gases and principles of interpretation methods.
Join us and learn!
About the author
CS Narasimhan
Dr. Narasimhan holds PhD in chemistry from a premier institute IIT Madras, Chennai (India), with a long experience of about 40 years. He has been working in corporate R&D centers of multinational companies ever since he completed his PhD in 1978.
He was heading R&D at Savita Oil Technologies in Mumbai for 20 years, until his recent retirement.
His R&D work includes: developing a variety of grades of transformer oils based on paraffinic oils, naphthenic oils, natural esters and synthetic esters,
application development in transformers, developing additives for transformer oils, studying oxidation behavior, moisture dynamics in oil-filled transformers, studies on dielectric properties of mineral oils and esters (impulse & power frequency), insulation paper ageing studies in mineral oils and ester oils published papers in the recent ICDL conference in Rome and 9 papers in IEEE conferences on dielectric properties of ester oils and mineral oils, and more.
He has published more than 30 papers, of which 15 are on transformer oils, and is proud of his six patents.
He has been an invited speaker at conferences in India and abroad, as well as delivered lectures at seminars conducted by Weidman in Europe. He is a member of two IEC committees on oil standards and a member of two CIGRE committees on oils.
