50kVA 10kv Oil Filled Three Phase Distribution Transformer
Jan 22, 2026
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Are you in need of a reliable power distribution solution for medium-voltage 10kV grids?
As a professional transformer manufacturer with years of industry experience, we specialize in producing the 50kVA Oil Filled Three Phase Transformer-a compact, efficient, and durable device designed for residential, commercial, and small industrial power supply needs. This transformer ensures stable voltage conversion from 10kV high voltage to low voltage (typically 0.4kV), supporting daily electricity demand with minimal energy loss.
Core Features of 50kVA Oil Filled Three Phase Transformer
Our 50kVA oil-filled three-phase transformer stands out for its optimized performance and user-friendly design, making it a top choice for medium-scale power distribution:
- Three-Phase Efficiency: Adopts a three-phase structure that delivers balanced power output, reducing voltage fluctuations and ensuring stable operation for multi-phase electrical equipment.
- Oil-Filled Cooling System: Uses high-quality mineral insulating oil to enhance heat dissipation, allowing the transformer to run continuously under full load without overheating (cooling method: ONAN - Oil Natural Air Natural).
- Compact Size: Designed with a space-saving structure, the transformer is easy to install in limited spaces such as residential transformer rooms or small industrial power stations.
- Low Noise Operation: Integrates noise-reduction technology, with an operating noise level below 50dB-suitable for noise-sensitive areas like residential communities and commercial districts.
- Corrosion Resistance: The outer tank is made of galvanized steel with anti-rust coating, protecting the transformer from harsh environmental factors (e.g., humidity, dust) and extending its service life.
Technical Specifications of 50kVA 10kV Oil Filled Three Phase Transformer
To meet standard 10kV power grid requirements, our transformer follows strict technical parameters. The table below details its key specifications:
| Parameter | Specification |
|---|---|
| Rated Capacity | 50kVA |
| Phase Configuration | Three Phase |
| Primary Voltage | 10kV (Customizable for 6kV/20kV if needed) |
| Secondary Voltage | 0.4kV (400V) |
| Frequency | 50Hz / 60Hz |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Insulation Class | Class A (Temperature resistance up to 105°C) |
| Temperature Rise | ≤55K (Top Oil), ≤80K (Winding) |
| Protection Level | IP23 (Suitable for indoor/outdoor installation) |
| No-Load Loss | ≤120W |
| Load Loss (at rated current) | ≤850W |
| Weight | Approximately 850kg |
| Dimensions (L×W×H) | 1500×1000×1400mm |
| Connection Group | Dyn11 (Standard; Yyn0 optional) |
Application Scenarios of 50kVA Oil Filled Three Phase Transformer
The 50kVA oil-filled three-phase transformer is highly versatile, catering to various medium-scale power distribution needs:
Residential Communities: Supplies stable power to 200-300 households, supporting daily electrical appliances (e.g., air conditioners, refrigerators, lighting).- Small Commercial Areas: Powers small shopping centers, convenience stores, and office buildings, handling mixed loads from lighting, HVAC systems, and POS equipment.
- Light Industry Factories: Supports small-scale production facilities (e.g., textile workshops, food processing plants) with power for low-voltage machinery.
- Rural Power Grids: Connects to 10kV rural power lines, converting high voltage to low voltage for villages and agricultural irrigation systems.
- Infrastructure Auxiliary Power: Provides backup power for road toll stations, small communication towers, and water pump stations.
Quality Assurance and Compliance
We prioritize reliability in every 50kVA Oil Filled Three Phase Transformer, with strict quality control throughout the production process:
- Raw Material Inspection: Key components (silicon steel sheets, copper windings, insulating oil) undergo third-party testing to ensure compliance with IEC standards.
- Production Monitoring: Uses automated winding machines and laser cutting equipment to ensure precision in component manufacturing.
- Post-Production Testing: Each transformer undergoes mandatory tests, including:
- Insulation resistance test (to verify electrical safety)
- Temperature rise test (to confirm heat dissipation performance)
- Short-circuit withstand test (to ensure structural durability)
- Certifications: Complies with international standards such as IEC 60076 (Power Transformers), CE, and GB/T 6451 (Chinese National Standard).
After-Sales Support and Maintenance
To ensure long-term stable operation of the transformer, we provide comprehensive after-sales services:
- Warranty: 5-year warranty for core components (windings, iron core) and 2-year warranty for the entire device.
- Installation Guidance: Professional engineers offer on-site or online guidance for transformer installation and commissioning.
- Maintenance Services: Regular maintenance reminders and on-site maintenance support (e.g., oil replacement, insulation testing) to extend service life.
- Spare Parts Supply: Fast delivery of genuine spare parts (e.g., pressure relief valves, temperature gauges) to minimize downtime.
Conclusion
The 50kVA Oil Filled Three Phase Transformer is a cost-effective, reliable solution for 10kV power distribution, meeting the needs of residential, commercial, and small industrial users. Its compact design, low energy loss, and durable structure ensure long-term value and stable power supply.
If you are planning a power distribution project and need a customized 50kVA transformer solution, please Contact us for the latest 50kVA oil filled three phase transformer price list and technical datasheet. Our team will tailor the product to your specific voltage and installation requirements.