How does transformer mineral oil compare to FR3 oil?
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September 12, 2024 at 7:06 am by Amir Khan
When comparing transformer mineral oil vs FR3 oil, it’s important to note that transformer mineral oil is a petroleum-based oil widely used for insulation and cooling in transformers, while FR3 oil is a natural ester-based fluid that offers improved biodegradability and fire resistance. Transformer mineral oil generally has a higher flash point than conventional fluids but is less environmentally friendly compared to FR3. FR3 oil not only provides excellent electrical properties but also has a lower environmental impact and better thermal conductivity, making it suitable for applications where environmental concerns and safety are paramount. Additionally, FR3 oil has better resistance to oxidation and, therefore, may require less frequent oil regeneration. Overall, the choice between transformer mineral oil vs FR3 largely depends on project-specific requirements, such as environmental regulations, operational safety, and maintenance philosophies.