Excellent heat dissipation & insulation: Insulating oil serves as both cooling medium and dielectric material. It features high heat transfer efficiency for high voltage & large capacity applications and strong short-time overload capability.
High reliability & long service life: With proper maintenance, service life reaches 25–35 years. Strong short-circuit resistance for continuous long-term operation.
Cost-effective: Lower investment cost compared with dry-type transformers at the same rating, especially for large-capacity projects.
Adaptable to harsh outdoor conditions: Rainproof and dustproof, stable operation under high temperature, dusty and remote field environments.
Convenient condition monitoring: Internal faults can be predicted via oil sampling and gas analysis for predictive maintenance.
Notes: Insulating oil is flammable. Fire protection and anti-leakage measures are required during installation. Periodic inspection of oil level and oil quality is necessary.
Oil-Immersed Distribution Transformer | Three-Phase Transformer – Basic Parameters
| Maximum Rated Capacity | Up to 2500 kVA |
|---|---|
| Primary Voltage | Up to 35 kV |
| Transformer Oil | Mineral oil / Vegetable oil / Silicone oil |
| Transformer Core Material | Silicon steel laminations or amorphous alloy core |
| Transformer Winding Material | Copper or aluminum |
| Transformer Oil Tank | Fully sealed corrugated oil tank |
| Vector Group | Dyn11, Yyn0, or as specified by the customer |
| Reference Standard for Design, Manufacturing and Testing | IEC 60076 |
Power transmission & distribution substations, urban power grids and rural electrification projects
Solar farms, wind power plants and other renewable energy step-up / distribution projects
Heavy industry power supply for factories, mines, oil & gas plants
Large infrastructure: railway, water conservancy, airport, port and construction sites
Outdoor power distribution for residential communities and commercial parks
Independent outdoor distribution projects (Pad-mounted transformers adopt oil-immersed structure)
