Utilities and OEMs are used to working with mineral oil and therefore compare FR3™ fluid to mineral oil. The fact is, FR3 fluid is a vegetable oil which has different characteristics and will act different than mineral oil.
As Cargill have demonstrated in this article, there are many factors to consider in creating a fluid that not only meets standards but has the right combination of desired performance characteristics.
The article clearly justifies the development of FR3 by outlining the difference between oxidation of natural ester versus mineral oil (e.g. resulting in sludge), detailing the many advantages which remain with a natural ester, and how correct handling techniques negate any risks for end users with oxidation.
Insulect is distributing Envirotemp Esters to OEMs and Utilities Australia wide, and we are working together in addressing a wide range of needs with respect to transformer design and asset optimisation. If you want to be a part of this conversation,