Transformer Oil
Holding years of experience in this industry, our company is recognized as one of the well established manufacturers, exporters and suppliers of Transformer Oil. Our oil is formulated under the supervision of experienced personnel using advanced technology and best grade refined mineral oil without any additive and sufficiently free from moisture. Transformer Oil is known in the market due to its excellent electrical insulating properties, good oxidation stability, low volatility and resistance to sludge formation.
SPECIFICATION No. : IS: 335: 1993
CHARACTERISTICS:-
S.No. | Characteristics | Value | |
1. | Appearance | clear , transparent and free from suspended matter | |
2. | Density at 29.50C, g/cm3 (Max.) | 0.89 | |
3. | Kinematic viscosity at 27 0C, cSt, (Max.) | 27 | |
4. | Interfacial tension at 270C , N/m , (Min.) | 0.04 | |
5. | Flash Point , 0C , Pensky Marten(closed ) , (Min) | 140 | |
6. | Pour Point, 0C , (Max.) | -6 | |
7. | Neutralization value , mg KOH /g
|
0.03 | |
8. | Corrosive Sulphur | Non-corrosive | |
9. | Break Down Voltage(BDV) , kV (rms) , (Min.) | 30 | |
10. | Dielectric Dissipation factor (tan ) at 900C , (Max) | 0.002 | |
11. | Specific Resistance (Resistivity) , ohm-cm
|
35 x 1012 | |
12. | Oxidation Stability
|
0.4 | |
13 | Ageing characteristics after accelerated ageing (open beaker method with copper ) |
| |
a. | Specific resistance , ohm-cm
|
2.5 x 1012 | |
b. | Dielectric dissipation factor (tan ), at 900C, Max. | 0.20 | |
c. | Total acidity mg KOH/gm , Max | 0.05 | |
d. | Total sludge , % , Max | 0.05 | |
14. | Water content, Max. | 50 ppm |