Synthetic Ester Insulating Oil for Transformers
Transformer oil serves as a crucial insulating and heatdissipating medium for transformers in power transmission and transformation projects, playing a vital role in the safe operation of substations. Consequently, the fundamental functional requirements for transformer oil include effective insulation and heat dissipation, with high withstand voltage and low dielectric loss being essential electrical performance criteria. As highvoltage power transmission technology advances, transformer oils must exhibit excellent oxidation stability, thermal stability, and resistance to gas precipitation to meet the demands of highvoltage environments. Additionally, the presence of trace water and particulate impurities has become a critical parameter for control.
Product Details：Synthetic Ester Insulating Oil for Transformers
In the charged operation of a transformer, heat is generated due to "copper consumption" and "core loss." If this heat is not adequately expelled, it will accumulate, increasing the internal temperature of the iron core. This can damage the solid insulation surrounding the coil, leading to coil burnout. By using transformer oil, the heat produced inside the coil is first absorbed by the oil. The oil then circulates to dissipate this heat, ensuring the safe operation of the transformer equipment.
Parameter：
Sports Event | Quality Indicators | measured value | Test Methods |
Functional characteristics | |||
Pour Point/°C | -50 | -57.5 | ISO 3016 |
Kinematic viscosity (40℃)/(m㎡/s) | ≯12 | 9.52 | ISO 3104 |
Kinematic viscosity (-10°C)/(mm²/s) | ≯1800 | 1028 | ISO 3104 |
Water content/(mg/kg) | ≯30/40 | 9.0 | IEC 60814 |
Breakdown voltage/kV (untreated oil) | ≮30 | 64.5 | IEC 60156 |
Density (20°C)/(g/ml) | ≯895 | 886 | ISO 12185 |
Dielectric loss factor (90°C) | ≯0.005 | 0.0005 | 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 | 45.3 | 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 | 0.065 | IEC 60666 |
2-Furfural content/(mg/kg) | ≯0.1 | 0.012 | 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 | 148.2 | 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. Applicable Industry
Drilling equipment: Transformer oil acts as a lubricant that lessens friction and wear, while keeping equipment stable in elevated temperature environments.
Oilfield Electrical Equipment: In the realm of oilfield electrical gear, transformer oil provides necessary insulation and cooling, ensuring reliable operation in severe conditions.
Electric Locomotives: Transformer oil is integral to the electrical systems of electric locomotives, providing insulation, ensuring safe electric current flow, and helping to manage heat.
Signal Systems: In railroad signaling equipment, transformer oil is utilized for insulation, which is essential for the efficiency and safety of the signaling infrastructure.
2. Oil Change Inspection
To make informed decisions regarding a transformer, one must consider its operational condition and historical performance data. If the transformer has faced numerous failures or shows signs of degraded performance, checking the oil quality and contemplating a replacement is advisable. Moreover, the design life and age of the transformer should also be factored in. If the transformer is approaching or has surpassed its expected lifespan, it may be necessary to change the transformer oil to guarantee its continued safe operation.
Own Factory
The company, Haikun, is dedicated to providing reliable industrial lubricants.
Employees at Working
Laboratory specialists at Haikun use scientific methods for industrial oil testing. Their professional work ensures product reliability.
Canned Oil Products
Our company, Haikun, has a mature packing strategy. We pack transformer and insulating oils in 200L iron barrels and 20000L liquid bags for secure international sea freight.
Transportation
Haikun Petrochemical Technology Co., Ltd. has a mature sea - freight system. We ship transformer - related products to Russia, South America, and multiple African markets.
Enterprise Culture
Convinced that only continuous learning enables us to keep abreast of the times, we urge our employees to be enthusiastic about learning, actively assimilate new knowledge and skills, and continuously boost their overall qualities, in order to bring new energy to the development of the enterprise.
Customer Testimonials
I'm really happy with Haikun Petrochemical's transformer oil. Their product quality is unbeatable. They take customer needs seriously. The salesperson gave me a great product recommendation. - Russia, Petrov Nikolay
