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IPOL TRANSFORMER OILS
Description:
Transformer oil or insulating oil is usually a highly refined mineral oil that is stable and has excellent electrical insulating properties. These are used in oil filled transformer to insulate, suppress corona and arcing, and to serve as a coolant.
Salient Features:
- IPOL Transformer oils are marketed to meet different National and International specifications.
- IPOL Transformer oil is meeting IS 335-1993 specification.
Application:
- The selection of the IPOL Transformer Oils, with different specifications as mentioned above, is based on the recommendations of the Transformer manufacturer and the type of application desired by the user.
- In general they can be used in oil-filled transformers, some types of high voltage capacitors, fluorescent-lamp ballasts and a few type of high voltage switches, Circuit breaker etc.
Benefits:
- Helps cool the transformer.
- Serves as a part of the electrical insulation between internal live parts.
- Very stable at high temperature and high voltage.
Sr. No. |
Characteristics |
Test Method |
Specification |
Minimum |
Maximum |
1 |
Appearance |
A representative sample of the oil shall be examined in a 100-mm thick layer @27°C |
The oil shall be clear and transparent and free from suspended matter or sediment |
2 |
Density @ 29.5°C g/m3 |
IS 1448 (P:16) 1977 |
- |
0.89 |
3 |
Viscosity, Kinematic CSt 27°C |
IS 1448 (P:25) 1976 |
- |
27 |
4 |
Flash Point Pensky-Marten (closed), °C |
IS 1448 (P:21) 1970 |
140 |
|
5 |
Pour Point, °C |
IS 1448 (P:10) 1970 |
- |
(-) 6 |
6 |
Interfacial Tension N/m @ 27°C |
IS 6104-1971 |
0.04 |
- |
7 |
Neutralization Value |
IS 1448 (P:2) 1967 |
|
|
a)Total Acidity, mg KOH/gm |
0.03 |
b) Inorganic Acidity/ alkalinity |
Nil |
8 |
Corrosive Sulphur Copper Strip, 19hrs @ 140°C |
Annex.- B |
Non corrosive |
9 |
Electric strength (Breakdown voltage), KV (rms) |
IS:6792-1972 |
|
|
(a) New ( unfiltered oil) |
|
30 |
- |
(b) After filtration |
|
60 |
- |
10 |
Dielectric dissipation factor (tan Delta) @90°C |
IS 6262-1971 |
- |
0.002 |
11 |
Specific resistance (resistivity ohm-cm) |
IS 6103-1971 |
|
|
a) At 90°C |
|
|
b) At 27°C |
35 X 1012 |
- |
|
1500 X 1012 |
|
12 |
Oxidation Stability |
Annex – C |
|
|
|
(a) Neutralization value, after oxidation for 164 hrs @ 100°C.mg KOH/gm |
|
- |
0.4 |
(b) Total Sludge, after oxidation for 164 hrs @ 100°C. wt% |
|
- |
0.1 |
13 |
Accelerated ageing test (open beaker method with copper catalyst) 96 hrs @ 115°C |
IS:12177-1987 |
|
|
Method A |
a) Specific resistance (resistivity) ohm-cm@27°C |
IS:6103-1971 |
2.5 X 1012 |
- |
b) Specific resistance (resistivity) ohm-cm@90°C |
IS:6103-1971 |
0.2 X 1012 |
- |
c) Dielectric dissipation factor (tan Delta) @90°C |
IS:6262-1971 |
- |
0.2 |
d) Total acidity, mg, KOH/gm |
IS:1448 (P-2)-1967 |
- |
0.05 |
e) Total sludge value |
Annex A of 12177 |
- |
0.05 |
14 |
Presence of Oxidation inhibitor |
IS:13631-1992 |
The oil shall not contain antioxidant additives |
15 |
Water Content, ppm |
IS:13567-1992 |
- |
50 |
16 |
SK Value % WV. |
IS:335-Annex D |
- |
4 |
The above data is typical & does not constitute a specification. The information provided is not to be taken as a warranty or representation for which we assume legal responsibility, nor as permission or recommendation to practice any attended location or otherwise. It is solely offered for your consideration, investigation and verification.
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