GH OIL TRANSFORMER
Transformer Oil is a premium-grade, highly refined mineral oil engineered specifically for use in oil-filled transformers, switchgear, and other electrical equipment. Formulated using carefully selected base stocks and an advanced refining process, it delivers exceptional thermal and oxidation stability, ensuring long service life without the formation of sludge or deposits. The oil provides excellent dielectric strength, efficient heat dissipation, and reliable insulation performance, making it ideal for demanding electrical applications.
Kinematic Viscosity, mm²/s
Test Method: GOST 33
at 50°C | Grade 1: 7.427
at 50°C | Grade 2: 7.418
at -30°C | Grade 1: 552
at -30°C | Grade 2: 534
Density, kg/m³
Test Method: GOST R 51069
at 50°C | Grade 1: 836.6
at 50°C | Grade 2: 836.2
at 15°C | Grade 1: 833.2
at 20°C | Grade 2: 832.8
Flash Point, °C (closed cup)
Test Method: GOST 6356
Grade 1: 836.6
Grade 2: 836.2
Pour point, °C
Test Method: GOST 20287 Method or ASTM D 97
Grade 1: Minus 45
Grade 2:Minus 45
Acid number, mg KOH/g
Test Method: GOST 5985 or ISO 6618
Grade 1: 0.01
Grade 2:0.01
Breakdown voltage, kV
Test Method: GOST 6581
Grade 1: 90
Grade 2: 90
Dielectric loss tangent at 90°C, %
Test Method: GOST 6581 p.2
Grade 1: 0.4
Grade 2:0.4
Oxidation stability (120°C, 500 h, 1.5L/min)
Sludge content, %
Test Method: GOST R IEC 61125 or IEC 61125 Method C
Grade 1: 0.1
Grade 2:0.1
Acid number, mg KOH/g
Test Method:GOST R IEC 61125 or IEC 61125 Method C
Grade 1:0.3
Grade 2:0.3
Dielectric loss tangent at 90°C, %
Test Method:GOST R IEC 61125 or IEC 61125 Method C
Grade 1:0.05
Grade 2:0.05
Oxidation stability (155°C, 164 h, 5L/min):
Mass of volatile low-molecular-weight acids, mg KOH/g
Test Method: GOST 981
Grade 1: 0.025
Grade 2: 0.025
Sludge content, %
Test Method: GOST 981
Grade 1: 0.005
Grade 2: 0.005
Acid number, mg KOH/g
Test Method:GOST 981
Grade 1:0.05
Grade 2:0.05
Aplication:
Inhibited Transformer Oil is used as an insulating oil in transformers, switch-gear, inductors, condensers, transducers and similar equipment, also for low temperature operation in outdoor use. It insulates current carrying parts from each other and from ground, carries away heat, prevents glow discharges, extinguishes electric arcs in switchgear, and impregnates insulating materials.
