Zeal Elect Oil N-42 Un-inhibited Transformer oils are severely refined hydro-cracked / hydro-treated virgin un-inhibited Naphthenic insulating oils with highest degree of purity and stability. It is manufactured from judiciously selected blend of latest technology feed stocks, which is highly suitable for all grades of Power & distribution Transformers, Circuit Breakers, Oil filled switches and X-ray equipment.
Product Description & Specifications
Features & Benefits
- Very low sulphur and no DBDS.
- Low Pour point.
- High dielectric strength.
- Non corrosive as tested by all present methods, DIN & ASTM tests & New IEC 62535 method.
- Low viscosity oils offering excellent and fast heat transfer.
- Higher Flash point, resulting on Low evaporation losses and better safety
- Remarkably low sludge and acidity formation, in both ageing and oxidation tests, results in longer life of oil and equipment
- Compatible with transformer construction material.
Specifications
Zeal Elect Oil N-42 Un-inhibited Transformer oils are highly suitable for all grades of
- Power Transformers, Distribution Transformers
- Circuit Breakers, Oil filled switches, X-ray equipment
Application
Zeal Elect Oil N-42 Un-inhibited Transformer oils conforms to and exceed the requirements of ASTM D 3487 Type I, IEC 60296:2012 (U) (superseding IEC 296:1982) & BS 148:1998
Typical Characteristics
|
Zeal Elect Oil N-42 Un-inhibited Transformer Oil |
||||
|
No. |
Characteristics |
Specification |
Method |
Results |
|
A |
FUNCTION | |||
|
1 |
Kinematic Viscosity @ 40°C, mm²/s |
12 (Max) |
ISO 3104 |
8.2 |
|
|
Kinematic Viscosity @ -30°C, mm²/s |
1800 (Max) |
ISO 3104 |
348.2 |
|
2 |
Pour Point, °C |
<= -40 |
ISO 3016 |
-42 |
|
3 |
Water Content ppm |
< 40 |
IEC 60814 |
|
|
|
Bulk Delivery |
30 (Max) |
|
|
|
|
Drum Delivery |
40 (Max) |
9.75 |
|
|
4 |
Break down voltage, KV(IEC -296) |
|
IEC 60156 |
|
|
|
(a) As Delivered (kv) |
30 (Min) |
75 |
|
|
|
(b) After Treatment (kv) (IEC-296) |
70 (Min) |
|
|
|
5 |
Density @20°C, kg/dm3 |
0.895 (Max) |
ISO 3675 |
0.8405 |
|
6 |
Dielectric dissipation factor (tan Delta)at 90°C |
0.005 (Max) |
IEC 60247 |
0.0006 |
The above figures are typical of blends with normal production tolerance and do not constitute a specification.
|
B |
REFINING / STABILITY |
|
||
|
1 |
Appearance |
Clear Odourless Liquid free from suspended impurities |
Visual |
Clear Odourless Liquid free from suspended impurities |
|
2 |
Neutralization value/ Acidity, mg KOH/g |
0.01 (Max) |
IEC:62021-1/ EC:62021-2 |
0.0015 |
|
3 |
Interfacial Tension, mN/m |
40 (Min) |
ISO 6295 |
48 |
|
4 |
Total Sulphur Content, % Max |
No general |
IP 373/ISO 14596 |
No general |
|
5 |
Corrosive Sulphur |
|
|
|
|
|
Corrosive Sulpher, Silver strip@100°C, 18hrs |
Non corrosive |
DIN 51353 |
Non corrosive |
|
|
Cu strip & Kraft paper@150°C, 72hrs |
Non corrosive |
IEC 62535 |
Non corrosive |
|
6 |
DBDS, mg/kg |
Not detectable |
IEC 62697-1 |
Not detectable |
|
7 |
Anti-oxidant Additives,% |
Not detectable |
IEC 60666 |
Not detectable |
|
|
Metal Passivators, mg/kg |
Not detectable |
Not detectable |
|
|
8 |
2-Furfural Content, mg/kg |
0.1 (Max) |
IEC 61198 |
Not detectable |
|
9 |
Carbon Type Analysis |
|
|
|
|
|
CA (Aromatic) |
To report |
IEC 590: 1977 |
0% |
|
|
CP (Paraffinic) |
To report |
55.45% |
|
|
|
CN (Naphthenic) |
42% Min |
44.55% |
|
|
C |
PERFORMANCE |
|
|
|
|
1 |
Oxidation Stability, 164hrs | IEC61125 METHOD – C |
|
|
| a)Total Acidity, mg KOH/g |
1.2 (Max) |
0.032 |
||
| b)Total sludge, % by mass |
0.8 (Max) |
0.023 |
||
| c)Dielectric Dissipation Factor (tan delta)@90°C |
0.5 (Max) |
IEC 60247 |
0.004 |
|
|
D |
HEALTH,SAFETY AND ENVIRONMENT(HSE) |
|
|
|
|
1 |
Flash Point,°C (PMCC) |
135 (Min) |
ISO 2719 |
156 |
|
2 |
Polycyclic Aromatics %mass |
3 (Max) |
IP: 346 |
0.35 |
|
3 |
Total PCB content, mg/kg |
Not Detectable |
IEC 61619 |
Not Detectable |
The above figures are typical of blends with normal production tolerance and do not constitute a specification.
Packaging Options:
Zeal Elect Oil N-42 Un-inhibited Transformer oils are offered in 200-210 litres of steel drums and also in bulk in Flexi bags or ISO tanks.
Storage Precautions::
Extreme care is taken while packing these products, including filling of drums in inert atmosphere, as Electrical Insulating oils / Transformer oils are very sensitive to very minute concentrations of contaminants, such as moisture, particulate matter, fibers, etc. Hence, care should be taken to store Zeal Elect Oil N-42 Un-inhibited Transformer oil in a clean and dry condition. It is strongly recommended that all storage tanks / drums be maintained such that oil is not in contact with atmospheric air. Also these oils should always be stored indoors in climate controlled environments.
