Description
Transformer Oil GK is a high quality special insulating oil. It is produced from mineral oil with low sulfur content by using hydrocracking process, and contains 0.25-0.40% by weight. Oxidation inhibitor. The product is characterized by a long service life, and is non-aggressive with respect to most insulating materials. Rosneft GK fully complies with the requirements of the international standard IEC 60296: 12.
Application
Transformer Oil GK is intended to fill the power and instrument transformers and other high-voltage equipment. Recommended for use in electrical machinery of higher voltage classes.
Approvals and specifications
Approvals: IEC 60296:12, ART-TRA S.r.L Recommended for use by PJSC ROSSETI, Ural transformer plant LLP. Meets Requirements: IEC 60296:12; ART-TRA S.r.L; Recommended for use by PJSC ROSSETI
Benefits
• Unique oxidative stability, confirmed by industry operating experience, ensures oil life up to 30 years;
• The oil is gas-emitting, which allows to detect the hydrogen generated at an early stage in the development of transformer errors;
• Accurate quality control of production provides the highest level of performance properties.
Packaging
216.5 L, bulk (auto and railroad)
Typical physical and chemical properties
| Name of characteristic | Test method | Oil GK |
| Кинематическая вязкость при 50 °С, мм2/с при минус 30 °С, мм2/s | GOST 33 / ASTM D445 | 7 771 |
| Acid number, mg KOH/g | GOST 11362 / ASTM D4739 | 0,003 |
| Тангенс угла диэлектрических потерь при 90 °С, % | GOST 6581 | 0,1 |
| Напряжение пробоя после подготовки пробы, кВ | GOST 6581 | 70 |
| Стабильность против окисления — массовая доля осадка, % | GOST 981 | 0,007 |
| Flash point, COC °C | GOST 4333 / ASTM D92 | 141 |
| Pour Point, °C | GOST 20287 / ASTM D97 | -48 |
