Synthetic Ester Transformer Oil U-40 Variant
Transformer oil is an indispensable insulating medium for electrical equipment. It is mostly refined and extracted from petroleum, and its main components are alkanes and cycloalkanes. With excellent electrical insulation, it can effectively isolate the high voltage parts inside the transformer to prevent leakage and short circuit; good thermal conductivity, it can quickly transfer the heat generated during the operation of the transformer to avoid overheating and damage; it also has a certain arc extinguishing ability, and it can quickly quench the arc when the switching appliance cuts off the electric current to generate an arc.
Product Details：Synthetic Ester Transformer Oil U-40 Variant
The transformer is a highly important piece of equipment within the power grid framework. The normal operation of the transformer is essential for maintaining the safety of the power grid, and the transformer oil plays a pivotal role in the reliable operation of the transformer. Consequently, we have to conduct the selection, application, and management of transformer oil with great care to ensure the secure operation of the transformer. When selecting transformer oil, the primary principle is to assess the oil's performance. Its quality must meet the requirements imposed by factors including the voltage level of the equipment and the ambient temperature of the installation site. Besides, the compatibility between the oil and other related insulating materials cannot be ignored.
Parameter：
Sports Event | IEC60296:2020 TVAI (LCSET-40℃) Quality indicators | Typical properties | Test Methods |
Functional characteristics | |||
Pour Point/°C | ≯-50 | -63 | ISO 3016 |
Kinematic viscosity (40°C)/(mm²/s) | ≯12 | 7.0 | ISO 3104 |
Kinematic viscosity (-40°C)/(mm²/s) | ≯2500 | 1736 | IEC 61868 |
Water content/(mg/kg) | ≮30 | 68 | IEC 60814 |
Breakdown voltage/kV | - | IEC 60156 | |
--Untreated oil | ≮30 | 40-70 | |
--Treated oil | ≮70 | >70 | |
Density (20°C)/(kg/m³) | ≯895 | 865 | ISO 12185 |
Dielectric loss factor (90°C) | ≯0.005 | 0.0005 | IEC 60247 |
Refining/stabilizing properties | |||
saturation (color theory) | <0.5 | <0.5 | ISO 2049 |
exterior condition | clear and transparent | Clear and transparent, no precipitation | visual assessment |
Acid value/(mgKOH/g) | ≯0.01 | <0.01 | IEC 62021 |
Interfacial tension/(mN/m) | ≮43 | 47 | IEC 62961 |
Total sulfur content/% | ≯0.05 | 0.003 | ISO 14596 |
corrosive sulfur | non-corrosive | non-corrosive | DIN 51353 |
Potentially corrosive sulfur | non-corrosive | non-corrosive | IEC62535 |
DBDS/(mg/kg) | Not detectable (<5) | undetectable | IEC 62697-1 |
Antioxidant content/% | 0.08~0.4 | 0.37 | IEC 60666 |
Metal passivator/(mg/kg) | Not detectable (<5) | undetectable | IEC 60666 |
2-Furfural content and related substances (single component) (mg/kg) | Not detectable (<0.05) | undetectable | IEC 61198 |
Gas production characteristics (under thermal oxidation)/uI/L) | Hydrogen ≯ 50 | 9 | Appendix A4 Methodology (air-saturated, containing copper) |
Methane ≯ 50 | 1 | ||
Ethane ≯ 50 | 0.2 | ||
Operational characteristics | |||
Chlorine stability (500h) | - | - | IEC 61125 |
--Total acid value (mg (KOH)/g) | ≯0.3 | 0.02 | |
-- Oil sludge/% | ≯0.05 | <0.01 | |
--Dielectric loss factor (90°C) | ≯0.050 | 0.025 | IEC 60247 |
HSE Characteristics | |||
Flash point (closed)/°C | ≮135 | 145 | ISO 2719 |
PCA content/% | <3 | 1.2 | IP 346 |
Polyoxybiphenyl (PCB) content/(mg/kg) | Not detectable (<2) | undetectable | IEC 61619 |
1. Environmental Friendliness of Transformer Oil
Environmental monitoring: Ongoing environmental monitoring and the maintenance of transformers and other electrical equipment play a crucial role in minimizing leak risks.
Implementing an oil spill monitoring system allows for the quick detection of problems, leading to prompt corrective measures.
Spill contingency measures: It is important to develop and enforce a comprehensive spill contingency plan to ensure quick action in the event of a spill and to reduce environmental impacts. Additionally, training employees in emergency response strategies ensures they are ready to act efficiently during emergencies.
2. Factors Affecting Service Life
To ensure transformer oil remains effective over time, regular quality analysis and testing are necessary. This includes assessing insulation resistance, absorption ratio, polarization index, dielectric loss, winding leakage current, and microwater content. Analyzing these aspects thoroughly can help identify issues like moisture, impurities, or aging. If any problems are found, oil regeneration through filtration may be attempted first. However, if this is not feasible or the oil quality has deteriorated significantly, it is important to consider replacing the transformer oil with a fresh supply.
Own Factory
Haikun, with 10 20 - square - meter finished products tanks, stores products securely.
Employees at Working
Our employees at Haikun are dedicated to the industrial oil industry. They work with pleasure, building a positive work culture.
Canned Oil Products
We at Haikun are pros at packing for sea - freight logistics. We use 200L steel drums and 20000L flexitanks, and have reliable packing solutions for transformer - related products.
Transportation
Haikun Petrochemical Technology Co., Ltd. has efficient delivery procedures. We're experts in sea freight, sending transformer oils to African and South American markets.
Enterprise Culture
We pursue the "customer - oriented" business way of thinking. We make it a rule to put customers' needs first. Through deep exploration of customer needs, we continuously enhance our products and services, aiming to be prominent in the fierce market competition and gain customers' approval.
Customer Testimonials
The insulating oil I purchased from Haikun is of excellent quality. They respect customer needs and maintain product quality. The parameters match, and the assay is professional. The sales service was top - notch. - Central Asia, Tursunov Ulugbek
