S11/S13 100KVA 200KVA 250KVA 315KVA 400KVA 500KVA 630KVA 800KVA 1000KVA 1250KVA 1600KVA 2000KVA
Three Phase Oil Immersed Transformer is designed for reliable voltage transformation and power distribution in industrial facilities, substations, commercial buildings, renewable energy projects and other electrical systems. The transformer uses insulating oil for electrical insulation and heat dissipation, making it suitable for continuous operation and demanding power distribution applications. Rated capacity, HV/LV voltage, frequency, vector group, impedance, tap range and other specifications can be customized according to project requirements.
Sealed corrugated tank structure with excellent heat dissipation performance.
High-purity silicon steel core ensures low no-load loss and minimal heat generation.
Strong overload capacity and stable power output.
High-strength insulation paper provides excellent dielectric strength and moisture resistance.
Fully painted enclosure offers rust and corrosion resistance, making it suitable for outdoor installation.
Reliable Power Transformation for Industrial and Distribution Applications
Our Three Phase Oil Immersed Transformer is designed for reliable voltage transformation and power distribution in industrial facilities, substations, commercial buildings, utility networks and other medium-voltage applications.
The transformer uses insulating oil for electrical insulation and heat dissipation, making it suitable for continuous operation and high-load power distribution applications.
With customized voltage ratios, rated capacity, vector groups, impedance and accessories available, the transformer can be configured according to the requirements of different power systems and projects.

Looking for a transformer for your project? Send us your voltage, capacity and application requirements for a customized recommendation.
The Three Phase Oil Immersed Transformer can be configured for different power distribution requirements.
🏭 Industrial Plants
Provides voltage transformation for factories, production lines and heavy electrical equipment.
⚡ Substations
Suitable for medium-voltage distribution systems and substation applications.
🏢 Commercial Buildings
Provides reliable power transformation for large commercial and infrastructure facilities.
☀️ Renewable Energy Projects
Can be configured for suitable solar, energy storage and renewable power distribution applications.
⛏ Mining & Heavy Industry
Suitable for demanding environments where reliable power distribution and continuous operation are required.
Need a transformer for a specific project? Tell us the application and electrical requirements, and our engineers can recommend the appropriate configuration.
| Parameter | Specification |
|---|---|
| Product Type | Three Phase Oil Immersed Transformer |
| Rated Capacity | Customized according to project |
| HV Voltage | Customized |
| LV Voltage | Customized |
| Frequency | 50Hz / 60Hz |
| Phase | Three Phase |
| Cooling Method | ONAN / ONAF, according to design |
| Vector Group | Dyn11 / Yyn0 / Yd11 / Customized |
| Winding Material | Copper / Aluminum |
| Insulating Oil | Mineral oil / other options according to requirement |
| Impedance | Customized according to project |
| Tap Range | Customized |
| Installation | Indoor / Outdoor according to model |
| Standard | IEC / IE60076/ Customer Specification |
Typical Configuration
Depending on the project, configurations may include:
10kV / 0.4kV
11kV / 0.4kV
20kV / 0.4kV
35kV / 0.4kV
Other voltage ratios according to project requirements
Please note: Voltage, capacity, vector group and other parameters should be confirmed according to the actual electrical system before quotation.
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