PRISTA Trafo-A
Insulating Oils
Prista Trafo-A is an inhibited transformer oil formulated from highly refined naphthenic type mineral oil additized with phenolic type antioxidant. It is designated for use in high voltage electrical equipment such as transformers, circuit breakers (switches) etc., demanding a lubricant as insulating and heat-transfer media.
Specifications:
IEC 60296 Ed.4.0, 2012 Class I
VDE 0370 Part 1
Siemens TUN 901293
ASTM D 3487 Type II (excl. gassing tend.)
EN 61039 ISO-L-NTIО-2960131
Typical characteristics (as delivered):
Viscosity at 40 °C (104 °F): 9.6 mm2/sec
Viscosity at -30 °C (-22 °F): 1050 mm2/sec
Flash point, closed cup method: 148 °C (298 °F)
Breakdown voltage: 45 kV
Water content in drums: 35 mg/kg
Water content in bulk: 25 mg/kg
Acidity: 0.01 mg КOH/g
Aromatic hydrocarbon content: 5.2 % wt
Specifications:
IEC 60296 Ed.4.0, 2012 Class I
VDE 0370 Part 1
Siemens TUN 901293
ASTM D 3487 Type II (excl. gassing tend.)
EN 61039 ISO-L-NTIО-2960131
Typical characteristics (as delivered):
Viscosity at 40 °C (104 °F): 9.6 mm2/sec
Viscosity at -30 °C (-22 °F): 1050 mm2/sec
Flash point, closed cup method: 148 °C (298 °F)
Breakdown voltage: 45 kV
Water content in drums: 35 mg/kg
Water content in bulk: 25 mg/kg
Acidity: 0.01 mg КOH/g
Aromatic hydrocarbon content: 5.2 % wt
Substitutable products