What are the properties of Ergon transformer oil used in power transformers?

Ergon supplies mineral insulating oils typically formulated to meet utility performance needs such as high dielectric strength, low moisture content, low dielectric losses, good oxidation stability, and appropriate viscosity for cooling. Products may be inhibited or uninhibited depending on specification. In service, utilities value consistent quality, low gassing tendency, controlled sulfur behavior, and strong documentation such as certificates of analysis and SDS. Exact values depend on the specific Ergon product grade and the standard it claims compliance with.