Dependable Low - Temperature Insulating Oil for Transformers
Transformer oil, an indispensable insulating medium for electrical devices, is mainly refined from petroleum and mainly consists of alkanes and cycloalkanes. With great electrical insulation, it can effectively isolate the high-voltage parts inside the transformer, thus preventing leakage and short circuits. Its good thermal conductivity allows it to quickly transfer the heat generated during the transformer's operation, avoiding overheating and damage. It also has a certain arc-extinguishing capacity, which can quickly quench the arc when the switching device cuts off the current and causes an arc.
Product Details：Dependable Low - Temperature Insulating Oil for Transformers
A transformer is a critical piece of equipment for the power grid. The safe and stable operation of the power grid hinges on the normal operation of the transformer, and the transformer oil is of great significance for the reliable operation of the transformer. Thus, we should handle the selection, usage, and management of transformer oil meticulously to ensure the safety of the transformer's operation. When selecting transformer oil, the main principle is to consider the oil's performance. Its quality should meet the requirements from aspects such as the voltage level of the equipment and the ambient temperature of the installation location. Additionally, the compatibility between the oil and other relevant insulating materials needs to be evaluated.
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: In transformers and other power equipment, regular environmental monitoring and equipment maintenance can effectively reduce the risk of leakage.
The use of an oil spill monitoring system allows for timely detection of problems and remedial action.
Spill contingency measures: Develop and implement an effective spill contingency plan to ensure a rapid response in the event of a spill and to minimize the impact on the environment.
Train employees in emergency response skills to ensure that they can act quickly in the event of an emergency.
2. Factors Affecting Service Life
To guarantee the longevity of transformer oil, it is important to perform regular analyses and tests on its quality. This includes assessing insulation resistance, absorption ratio, polarization index, dielectric loss, winding leakage current, and the oil's microwater content. Analyzing these results comprehensively helps determine if the oil is contaminated, damp, or aging. If issues are found, one can first try regenerating the oil through filtration for further use. However, if filtration fails or the oil quality is critically poor, replacing the transformer oil with a new batch is required.
Own Factory
Specializing in special industrial lubricants, Haikun has a wide customer base.
Employees at Working
Our team at Haikun loves working in the industrial oil business. They cooperate efficiently, promoting the company's development.
Canned Oil Products
Our firm, Haikun, is experienced in packing for global sea - freight logistics. We use 200L steel barrels and 20000L flexitanks, and have well - developed packing methods for insulating oils.
Transportation
Our firm, Haikun, is experienced in sea freight. We use professional procedures to send transformer oils to Russia, South America, and Africa.
Enterprise Culture
We adhere to the "customer - oriented" business principle. We always put customers' needs first. Through comprehensive exploration of customer needs, we constantly enhance our product range and service quality, trying to stand out in the cut - throat market competition and obtain customers' preference.
Customer Testimonials
The insulating oil I got from Haikun is wonderful. They respect customers and have high - quality standards. The parameters are correct, and the assay sheets are professional. The buying process was seamless. - Central Asia, Aliev Rashid
