Description & Applications:

PETROMER Transformer Oil is manufactured using special BIESNATE TM base oils which possess inherently high dielectric strength. It is manufactured under strict conditions to conform to IEC 60296 Edition 4.0 and BS 148 Class I & II requirements.
PETROMER Transformer Oil is recommended for oil filled power and distribution transformers, rectifiers, circuit breakers and switchgears where an uninhibited transformed oil or dielectric fluid is specified. It will dissipate heat, insulate windings and quench the spark between the opening contacts when tap changing.

Benefits & Advantages:

  • Excellent oxidation stability.
  • Excellent low temperature performance.
  • Excellent cooling properties.
  • High dielectric strength for electrical insulation


Performance Levels :

IEC 60296 Edition 4.0, IEC 62535, DIN 51353, ASTM D1275 Method B, BS 148 Class I & II, AS 1767-1975, ASTM D3487 Type

Product Name

Density @ 200c


Viscosity @ 400ccSt

Viscosity @ 1000ccSt

Breakdown voltage (kV)

Flash Point 0C

Polycyclic aromatic content (% weight)

Pour Point 0C






40 - 60