What are the properties of Ergon HyVolt transformer oil?

Ergon HyVolt is a mineral insulating oil commonly specified for transformer insulation and cooling. Typical properties include high dielectric strength, controlled viscosity for heat transfer, good oxidation stability, low moisture content at delivery, and compliance with relevant insulating oil standards. Exact values depend on the product grade and datasheet, and utilities verify acceptance through incoming test certificates and baseline lab tests.