20MVA Power Transformer for Solar & Wind Power Projects
01-13 2026 | By:
20MVA Power Transformer Application in T&D Networks
The 20MVA power transformer is widely used in transmission and distribution substations to ensure stable voltage conversion, reliable power flow, and efficient grid operation. It is an essential equipment for urban distribution networks, industrial power supply systems, and regional substations.
Designed and manufactured by Ztelec Yuguang Power Transformer Factory, this transformer is optimized for long-term continuous operation under varying load conditions and harsh outdoor environments.
20MVA Power Transformer Technical Advantages
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Low-loss silicon steel core design
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High-strength oil-paper insulation system
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Excellent short-circuit withstand capability
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Stable thermal performance under full load
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Low noise and low vibration structure
20MVA Power Transformer Testing & Quality Verification
Each 20MVA power transformer from Ztelec Yuguang undergoes strict factory testing, including:
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Winding resistance test
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Turns ratio and vector group test
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No-load and load loss test
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Insulation resistance and dielectric test
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Applied voltage and induced voltage test
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Oil breakdown voltage test
All test results comply with IEC 60076, IEEE, and GB standards, and complete test reports are provided with delivery.
20MVA Power Transformer Certifications
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ISO 9001 Quality Management System
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ISO 14001 Environmental Management System
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ISO 45001 Occupational Health & Safety
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IEC / ANSI Standard Compliance
20MVA Power Transformer Typical Technical Parameters
| Item | Specification |
|---|---|
| Rated Capacity | 20 MVA |
| Rated Voltage | 110kV / 35kV / 33kV / 11kV (customizable) |
| Frequency | 50 / 60 Hz |
| Phase | Three Phase |
| Cooling Method | ONAN / ONAF |
| Vector Group | Dyn11 / YNd11 |
| Impedance | 8% – 12% |
| Tap Changer | Off-load / On-load |
| Insulation Level | IEC / ANSI |
| Ambient Temperature | Up to 50°C |
| Standard | IEC 60076 / IEEE |
Why Choose Ztelec Yuguang
Ztelec Yuguang Power Transformer Factory is a professional manufacturer specializing in high-voltage and medium-voltage power transformers for global transmission and distribution projects. With advanced production equipment, strict testing laboratories, and rich export experience, we provide stable, reliable, and cost-effective transformer solutions.
Contact for Procurement
If you are looking for a reliable 20MVA power transformer supplier for transmission and distribution projects, Ztelec Yuguang is your trusted manufacturing partner.
📩 Contact us today for:
✔ Technical proposal
✔ Drawing confirmation
✔ Factory test report
✔ Competitive quotation
✔ Short delivery time
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