Transformer oil
Transformer oil
Component:
the product is modulated from the petroleum distillate as raw material, the depth of refining by adding antioxidants,with good insulation,oxidation stability and cooling of the transformer oil.
This product is suitable for 330KV (including 330KV) transformers and similar requirements of electrical equipment. This product is divided into low temperature
performance:10,25,45 three brands.
Quality index:
| Itme | Index | Test Method | ||
| Grade | 10 | 25 | 45 | |
| Exterior | Transparent, no suspended solids and mechanical impurities | Visual inspection | ||
| Density（20℃），kg/m³ no greater than | 895 |
GB/T 1884 |
||
|
Kinematic viscosity，mm2/s |
13 13 11 —— 200 —— —— —— 1800 |
GB/T 1885 | ||
| Pour point，℃ not higher than | －7 | －22 | report | GB/T 35352) |
| Freezing point，℃ not higher than | —— | —45 | GB/T 5102) | |
| Flash point,（closed),℃ not lower than | 140 | 135 | GB/T 261 | |
| Acid value，mgKOH/g no greater than | 0.03 | GB/T 264 | ||
| Corrosive sulfur | Non-corrosice | SH/T 0304 | ||
|
Oxidation stability3） |
0.2 0.05 |
SH/T 0206 | ||
| Water-soluble acid or alkali | 无 | GB/T 259 | ||
| Breakdown voltage（spacing 2.5mm delivery)4)，KV not less than | 35 | GB/T 5075) | ||
| Dielectric loss factor（90℃） no greater than | 0.005 | GB//T 5654 | ||
| Interfacial tension，mN/m not less than | 40 | 38 | GB//T 6541 | |
| Moisture，mg/kg | report | SH/T 0207 | ||
Note:Before using this product to be filtered , mixed with water is strtictly prohibited.
Packing and storage:mark, packaging, transportation, storage
Mark,packaging, transportation and delivery acceptance according to SH 0164
Fourth: Sampling according to GB/T 4756 , take 2L as a test and stay with samples.
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