220kV Oil-Immersed Power Transformer
The 220kV oil-immersed power transformer is designed for high-voltage transmission systems, large substations,
renewable energy facilities, and industrial power grids. With a primary voltage range of 220kV–230kV and a secondary
voltage range from 69kV to 13.2kV, this transformer provides outstanding insulation performance, low losses, and stable
long-term operation under demanding environments.
Key Features
- 220kV oil-immersed design with high dielectric strength and thermal stability
- Primary voltage: 220kV / 230kV or customized
- Secondary voltage: 69/35/37.5/24.4/11/10.5/6.6/13.2kV
- Tap changer range: ±8 × 1.25% for accurate voltage regulation
- Connection type: YNd11 or other requested configurations
- BIL rating up to 900kV
- Complies with IEEE, CSA, IEC international standards
- Rated capacity up to 200MVA
- Designed for transmission lines, substations, and large-scale power distribution
Applications
- High-voltage transmission substations
- Renewable energy power plants
- Industrial and mining power systems
- Long-distance transmission lines
- Large utility grids and infrastructure projects
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | Oil-immersed power transformer |
| Standard | IEC60076, IEEE, CSA |
| Rated Capacity | 63MVA |
| Frequency | 50Hz |
| Phase | Three-phase |
| Cooling Method | ONAN/ONAF forced air cooling |
| Primary Voltage | 220kV |
| Secondary Voltage | 35kV |
| Winding Material | Copper |
| Vector Group | YNd11 |
| Impedance | 10% |
| Tap Changer | On-load tap changer |
| No-load Loss | 4.5 |
| Load Loss | 38 |
Why Choose Our 220kV Transformer?
- High-voltage class up to 900kV BIL
- Advanced insulation and winding technology
- Suitable for harsh outdoor environments
- Custom HV/LV voltage combinations available
- Factory-direct supply with full type testing
Contact us for detailed drawings, pricing, and customized solutions for 220kV high voltage transformer projects.
