Transformer oil course - e-lesson #4 - illustration

E-lesson: Transformer Oil Course – e-lesson #4 – Mineral Oils in Service

Course: Intermediate level

Storage, handling, testing oils for compatibility, filling into transformers, limits for parameters before energizing and oil sampling


This is the fourth e-lesson in the entire Transformer Oil Course, and also the first one conducted on Intermediate level.

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The lesson discusses aspects of unused mineral oil after its receipt by the end-user, such as storage, sampling, testing before and after filling into an equipment and the limits to parameters. The lesson also deals with the process and precautions for filling oil into a transformer.

Join us and learn how the oil should be stored and handled, about testing different oils for compatibility in case a new oil of a different vendor is used for topping up in an equipment and, finally, about the limits for oil parameters after filling and before energizing a transformer.

Keywords: storage, handling, filling, oil compatibility

Dr. Narasimhan is a Ph.D. in Chemistry with over 30 years of experience in Industrial R&D. While working as a technical director in a major oil company manufacturing transformer oils, he led project teams for developing and commercializing mineral oils for EHV applications and ester fluids. He is a member of several IEC and CIGRE committees dealing with transformer oils. He has several publications and patents to his credit.


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