Powering Large-Scale Grids Across North America
As North America continues to upgrade its transmission infrastructure, the demand for ultra-high capacity transformers is rising—especially for utility-scale substations, renewable integration, and industrial power networks.
Yawei Transformer is proud to announce the completion of a 250MVA 345kV power transformer, custom-engineered for a North American project. The unit has entered the final stage of factory testing and will soon be shipped to its destination.
This project highlights our capability to deliver high-capacity, high-voltage transformer solutions that meet the strict requirements of the North American market.
Project Overview: 250MVA / 345kV Transformer
Key Technical Parameters
- Rated Capacity: 250 MVA
- Voltage Level: 345kV
- Frequency: 60 Hz
- Cooling Method: ONAN / ONAF
- Winding Material: Copper Windings
- Installation: Transmission Substation
- Standards: IEEE / ANSI / IEC compliant
Designed for long-term, high-load operation, this transformer ensures:
- Low no-load and load losses
- Excellent thermal performance
- Strong short-circuit withstand capability
Manufacturing Excellence for Large Power Transformers
Manufacturing a 250MVA 345kV transformer requires advanced equipment, strict process control, and deep engineering expertise.
Core Manufacturing Highlights
- High-quality silicon steel core for reduced losses and noise
- Precision copper windings for enhanced electrical performance
- Vacuum drying process to ensure insulation integrity
- Robust tank design for long-distance overseas transportation
Each transformer is built under a strict quality management system, ensuring reliability from factory to field operation.
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Rigorous Testing Before Shipment
Before delivery, the transformer undergoes a full set of routine, type, and special tests in accordance with IEEE standards.
Key Tests Include:
- Lightning impulse test (BIL verification)
- Temperature rise test
- Short-circuit impedance test
- Partial discharge measurement
- Turns ratio and winding resistance test
These tests ensure the transformer can operate safely and reliably within North America’s high-voltage transmission systems.
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Ready for Shipment: Secure Global Delivery
After successful testing, the transformer will be prepared for export with:
- Heavy-duty export packaging
- Anti-moisture and anti-corrosion protection
- Shock and tilt monitoring systems
- Complete documentation for customs and installation
We ensure safe, efficient delivery to North America, meeting project timelines and site requirements.
Why Choose Yawei Transformer for 250MVA Projects
✔ Large Capacity Manufacturing Capability
We produce transformers up to 1200 MVA / 500kV, supporting:
- Utility substations
- Renewable energy integration
- Industrial mega-projects
✔ North America Export Experience
Familiar with:
- IEEE standards
- 60Hz system requirements
- Project documentation and certification
✔ Reliable Performance
Our transformers are designed for:
- Long service life
- Low maintenance
- High operational stability
✔ Competitive Factory Pricing
Direct supply from manufacturer ensures:
- Better pricing
- Faster communication
- Custom engineering flexibility
Conclusion: 250MVA Transformer Ready to Power Your Grid
The successful production of this 250MVA 345kV power transformer demonstrates Yawei Transformer’s strength in delivering high-end, large-capacity solutions for the global energy market.
We are ready to support your next substation or transmission project with reliable and cost-effective transformer solutions.
Request a Quote Today
Looking for a 250MVA, 345kV transformer supplier for North America?
👉 Contact us now for:
- Technical consultation
- Customized design
- Competitive quotation
📩 Email: info@yawei-powertransformer.com
