20 kV Up to 5000 kVA Three Phase Oil Immersed Distribution Transformer
Voltage: 20 kV
Rated Power: Up to 5000 kVA
Applications: Commercial Buildings, Hospitals, Airports, Factories, Residential Areas, Schools, Universities, Renewable Energy Projects, Data Centers, etc.
Production Standards: GB, IEC, IEEE, UL, CE, ASTA
Overview
| Voltage: | 20 kV |
| Rated Power: | Up to 5000kVA |
| Primary Voltage: | 20 kV, 22 kV, 24 kV |
| Secondary Voltage: | 220 V, 230 V, 240 V, 380 V, 400 V, 415 V, 480 V, 600 V, 690 V, 3.3 kV, 6 kV, 10 kV |
| Core material: | Copper/Aluminum |
| Cooling Methods: | ONAN/ONAF/KNAN/KNAF |
| Transformer Oils: | Mineral oil/FR3/Silicone oil |
| Operational Environment: | Heat/Cold/Earthquake/Corrosive |
| OEM & ODM: | Color & Logo |
Description
Our 20kV oil immersed distribution transformer is designed for high efficiency, reliability, and long service life in medium-voltage power networks. Its sealed corrugated oil tank prevents moisture absorption and oil oxidation, preserving insulation strength and ensuring stable performance over decades of operation. With compact dimensions, efficient cooling, and multiple oil options (mineral, FR3, silicone), this transformer is ideal for substations, renewable energy projects, industrial plants, and urban power distribution.
Applications
• Commercial & Residential Power Distribution - stable and safe electricity for buildings, schools, and hospitals.
• Industrial Plants & Factories - durable design for heavy-duty operations.
• Transportation Hubs & Airports - compact footprint for critical infrastructure.
• Renewable Energy Projects - optimized for wind, solar, and distributed energy systems.
• Data Centers & Medical Complexes - ensures high reliability for sensitive equipment.
Advantages
• Long Service Life: Fully sealed oil tank prevents contact with air, reducing oil oxidation and insulation aging.
• High Reliability: Advanced sealing technology and robust construction ensure stable and safe operation.
• Moisture Resistance: Sealed design prevents moisture absorption, maintaining insulation strength and performance.
• Efficient Cooling: Corrugated tank design functions as a built-in radiator, eliminating the need for a separate oil storage tank.
• Compact and Space-Saving: Small footprint and aesthetic design make installation flexible and convenient.
• Low Maintenance: Sealed design and durable materials reduce maintenance requirements.
• Structural Integrity: Tank and edges can be bolted or welded, ensuring long-term durability.
• Versatile Applications: Suitable for urban, industrial, commercial, and renewable energy power distribution systems.
Production Process
General Arrangement Drawing

Production Process of Oil Type Transformers

Finished Transformer
Certificates
FAQ
- Installation guidance & technical support available on-site or online.
- 30-minute response time to any customer inquiry.
- 2-hour commitment to provide a preliminary solution.
- 48-hour on-site dispatch if required.




