Cycloalkane Based Transformer Oil T-20 Insulating Oil
The product should have a high compressive strength, the minimum compressive strength should be 30KV (kilovolt). No chemical salts and other dirt, no sulphur content, so as not to corrode the copper metal. The oil quality is uniform and consistent.
Product Details：Cycloalkane Based Transformer Oil T-20
The insulating oil has very high insulation resistance and breakdown voltage, which can effectively prevent the abnormal flow of current inside the equipment and ensure the safe operation of the equipment.
PARAMETER：
Sports Event | Quality Indicators | measured value | Test Methods |
Functional characteristics | |||
Pour Point/°C | -30 | -38.8 | ISO 3016 |
Kinematic viscosity (40℃)/(m㎡/s) | ≯12 | 9.20
| ISO 3104 |
Kinematic viscosity (-10°C)/(mm²/s) | ≯1800 | 1089 | ISO 3104 |
Water content/(mg/kg) | ≯30/40 | 7.5 | IEC 60814 |
Breakdown voltage/kV (untreated oil) | ≮30 | 63.0 | IEC 60156 |
Density (20°C)/(g/ml) | ≯895 | 886 | ISO 12185 |
Dielectric loss factor (90°C) | ≯0.005 | 0.00045 | IEC 60247 |
Refining/stabilizing properties | |||
exterior condition | Clear and transparent, free of sediment and suspension (of atmospheric pollution) | Clear and transparent, free of sediment and suspension (of atmospheric pollution) | visual assessment |
Acid value (mgKOH/g) | ≯0.01 | 0.0008 | IEC 62021- 1 |
Interfacial tension/(mN/m) | No general requirements | 46 | ISO 6295 |
Total sulfur content (mass fraction)/% | No general requirements | No general requirements | ISO 14596 |
corrosive sulfur | non-corrosive | non-corrosive | DIN 51353 |
Content of antioxidant additives (mass fraction)/percent Oil with antioxidant additives (U) | ≯0.08 | 0.042 | IEC 60666 |
2-Furfural content/(mg/kg) | ≯0.1 | 0.011 | IEC 61198 |
Operational characteristics | |||
Oxidation stability (120°C) Test time: 332h | - | - | - |
--Total acid value (in KOH)/(mg/g) | ≯1.2 | 0.04 | IEC 61125 Act C |
--Oil sludge (mass fraction)/% | ≯0.8 | 0.020 | IEC 61125 Act C |
--Dielectric loss factor (90°C) | ≯0.500 | 0.004 | IEC 60247 |
Gassing/(mm/min) | No general requirements | No general requirements | IEC 60628 |
Health Safety and Environmental Characteristics (HSE) | |||
Flash point (closed)/°C | ≮135 | 147.3 | ISO 2719 |
PCA content (mass fraction)/% | ≯3 | 0.8 | BS 2000 Part 346 |
Polychlorinated biphenyl (PCB) content/(mass fraction)(mg/kg) | undetectable | undetectable | IEC 61619 |
1. Classification: Transformer oil
2. Executive Standard: GB 2536-2011 T-20 ℃ (general).
3. Storage conditions
(1) Temperature and humidity: The ambient temperature for storing transformer oil should be controlled between 1535 degrees Celsius and relative humidity between 45%65%. This can avoid the transformer oil being exposed to high temperature, high humidity and other adverse environments, so as to maintain its good performance.
(2) Ventilation: The storage location should be well ventilated to prevent evaporation and oxidation of the oil. Ventilation facilities should be of explosion-proof type to ensure safety.
(3) Fire prevention: the storage place should be far away from fire source, heat source and oxidant to prevent the transformer oil from burning or exploding due to heat.
4. Testing methods for transformer insulation oil
(1) Appearance inspection: including observing the color, odor, transparency, etc. of the oil.
(2) Physical property testing: including measuring the density, flash point, spontaneous ignition point, pour point, etc. of oil.
(3) Chemical composition testing: including measuring the acid value, neutralization value, water content, gas content, etc. of the oil.
(4) Electrical performance testing: including measuring the dielectric loss, dielectric constant, dielectric strength, etc. of the oil.
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FAQ：
Q:What are the advantages of your company compared to other companies?
A:Our company focuses on long-term goals and treats every client with integrity. We offer high quality construction techniques and materials to ensure the quality and longevity of your project. Although prices may be slightly higher than some companies, the quality of our services and the standard of our materials are also significantly higher than other companies.
Q:Why are your company's quotes so much higher than others?
A:Our company's quotes are based on comprehensive operating costs. Although the price may be slightly higher, our construction techniques and material quality standards are also higher. The high standard of workmanship and material quality is directly proportional to the price.
Q:Why can some companies offer a lot of discounts while your company cannot?
A:Our company focuses on providing high-quality services and products, rather than competing by lowering prices. Our prices are already very reasonable, and we do not offer so-called "discounts" by lowering the quality of our services.
