HP Transformer Oil



Specifications

Number Of Items 210 ltr
Features Quality tested, Safe to use
Form Liquid
Packaging Type Drum
Appearance Clear and transparent
Brand HP


Physico-chemical Properties

- Test Method Typical
Appearance A representative sample of the oil shall be examined in a 100 mm thick layer at 27oC Clear and transparent  and free from suspended matter or sediments
Density at 29.5oC, g/cc IS 1448 [P : 16] : 1990 0.8279
Kinematic viscosity, 
at 27oC
at 40oC
IS 1448 [P : 25] : 1976 16.46
11.76
Interfacial tension at 27oC, IS 6104 : 1971 0.044
Flash point Pensky-Marten (closed),oC IS 1448 [P : 21] : 1992 148
Pour point, oC IS 1448 [P : 10] : 1970 -18
Neutralization value
a) Total acidity,
b) Inorganic acidity/alkalinity
IS 1448 [P : 2] : 1967 Nil
Nil
Corrosive sulphur Annex B of IS 335 - 1993 Non Corrosive
Electric strength 
(breakdown voltage)
a) New unfiltered oil,
b) After filtration, min
IS 6792 : 1992

Note 2
72
Dielectric dissipation factor (tan δ)
at 90oC,
IS 6262 : 1971 0.00025/2.05 DC
Specific resistance (resistivity)
a) At 90oC,
b) At 27oC,
IS 6103 : 1971 750 × 1012 ohm-cm
7650 × 1012 ohm-cm
Oxidation stability
a) Neutralization value
after oxidation,
b) Total sludge, after oxidation,
IS 12422 - 1988 Nil
Nil
Oxidation stability (Rotating
Bomb test), minutes
IS 12958 - 1990 210
Oxidation inhibitor, percent by, wt IS 13631 - 1993 0.26
Water content, ppm IS 13567 - 1992 9