Optimus Transformer Oil is a highly refined un-inhibited mineral oil. It is designed forinsulating and cooling transformers, oil immersed switch-gear and other electricalinsulating application. It provides excellent dielectric (insulating) properties, effectivelyprevent discharge in an electric field. It has Low viscosity and low density lead to theoils having good cooling properties and good heat transfer characteristics at roomtemperature and below, and so ensure effective cooling of transformer core and coils.