Transformer oils  

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Univolt™ transformer oils – Formulated to improve performance and extend transformer life

Ready to experience a transformation? The next generation of Univolt transformer oils is formulated to improve performance and extend transformer life. Since ExxonMobil first developed a transformer oil in 1893, Univolt products have continued to redefine the industry standard.

Historically, naphthenic oils have provided generally acceptable properties as transformer oils. However, Univolt paraffinic oils surpass traditional naphthenic oil performance in many key areas, backed by more than 100 years of industry experience and supply reliability. Because the future begins with the current.

  • Greater oxidation stability to minimize sludge formation in the transformer*
  • Undetectable level of corrosive sulfur to help extend transformer life
  • Improved seal compatibility with less elastomer impact on PF100*
  • Lower aromatic content while providing consistent gassing tendency*
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Key benefits

  • Two times higher oxidative stability
  • One hundred Precent lower negative gassing with gear icons
  • Up to seventy five percent less aromatics with diamond icon
  • forty percent lower viscosity at zero degrees celsius with thermometer icon
  • over 5% improvement in thermal properties with hour glass icon
  • improved material compatibility with water tap icon

The benefits of Univolt vs. typical naphthenic oils

Historically, naphthenic oils have provided generally acceptable properties as transformer oils. However, Univolt is a paraffinic oil which surpasses traditional naphthenic oil performance in many key areas:

Industries and applications 

Featured resources

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  • ExxonMobil Chemical Library icon

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