Premium 2500 KVA Oil-Immersed Transformer for Power Distribution
The 2500 KVA Three Phase Oil Filled Distribution Transformer is a robust and high-performance solution designed for medium voltage distribution networks. It ensures efficient voltage transformation from 35kV to low voltage levels such as 380V, 400V, or 415V, making it suitable for industrial, commercial, and public utility applications.
Manufactured using high-quality copper windings, silicon steel or amorphous alloy cores, and advanced insulation materials, this Filled Distribution Transformer delivers low loss, high efficiency, and long service life. It meets international standards including IEC, ANSI, and IEEE, making it a reliable choice for global markets.
Key Features
- Rated Capacity: 2500 KVA
- Voltage Levels: 35kV / 0.4kV (customizable)
- Cooling: ONAN (Oil Natural Air Natural)
- Efficiency: Meets GB20052-2013 Level 1
- Overload Capacity: 120% for 2 hours
- Noise Level: ≤ 45 dB(A)
Its compact design and reliable thermal management make it ideal for indoor and outdoor installations, including hospitals, factories, data centers, and renewable energy plants.
Technical Specification Table
| Parameter | Value / Specification |
|---|---|
| Rated Power | 2500 KVA |
| Place of Origin | China |
| Brand Name | EverNew Transformer |
| Model | Oil Immersed Transformer |
| Number of Phase | Three Phase |
| Coil Number | Three |
| Winding Type | Multi-winding Transformer |
| Standard Compliance | IEC, ANSI, IEEE, CCC |
| Core Shape | Ring Core |
| Usage | Power Distribution |
| High Voltage | 35kV |
| Low Voltage | 380V / 400V / 415V / 440V (custom) |
| Tapping Range | ±2×2.5% |
| Impedance Voltage | 0.04 |
| Load Loss | 2.6 ~ 2.73 kW |
| No-load Loss | ≤ 0.1% of rated power |
| No-load Current | 0.6 |
| Frequency | 50Hz / 60Hz |
| Cooling Method | ONAN |
| Connection Group | Dyn11 / Yyn0 / Yd11 / YNd11 |
| Coil Material | 100% Copper (Aluminum optional) |
| Transformer Weight | 300 ~ 2000 kg (varies by configuration) |
Accessories & Optional Components
To enhance performance, safety, and serviceability, the transformer supports the following components:
- Buchholz Relay: Fault detection via gas and oil surge monitoring
- Oil Temperature Indicator (OTI): Real-time oil temperature feedback
- Winding Temperature Indicator (WTI): Overheating protection
- Pressure Relief Device: Explosion prevention via pressure release
- Magnetic Oil Level Gauge: Accurate oil level monitoring
- Radiators / Cooling Fins: Optional forced-air fans for heavy-duty cooling
- On-load / Off-load Tap Changer: Voltage regulation adaptability
- Earthing Terminals & Surge Arresters: Ensuring safety under faults or lightning
- Breather with Silica Gel: Moisture protection for the conservator tank
Application Scenarios
The 2500 KVA three phase oil filled transformer is suitable for:
- Hospitals (e.g., Mendoza Hospital Case Study in Argentina)
- Industrial factories and processing plants
- Commercial complexes and high-rise buildings
- Data centers and IT infrastructure
- Solar or wind energy hybrid grid stations
- Rural electrification and public utility grids
In one application, a large medical center in Argentina deployed this model with a forced-air cooling system and emergency switching. The transformer’s stability ensured uninterrupted power for critical care units and hospital operations.
Warranty & Service Life
- Standard Warranty: 2 years (extendable)
- Expected Lifespan: 25–40 years
- Maintenance Tip: Scheduled testing and thermal diagnostics can extend service life by 30%+
Price Factors for 2500 KVA Oil Transformers
Several variables influence the total cost:
| Component | Options & Impact on Price |
|---|---|
| Core Material | Amorphous Alloy (cost↑, efficiency↑), or Silicon Steel |
| Winding Material | Copper (durability↑, price↑) or Aluminum (budget-friendly) |
| Accessories | International Brands (ABB, Schneider) cost more |
| Efficiency Compliance | DOE 2016 & GB20052 compliance may increase cost 30% |
For a quote tailored to your project specifications, consult with EverNew Transformer.
Frequently Asked Questions
Q1: Can this transformer be used in coastal or high-humidity areas?
Yes, it can be equipped with anti-corrosion tanks, enhanced bushings, and moisture-resistant breathers.
Q2: What voltage can be customized?
HV side can be up to 35kV, and LV side can be 380V, 400V, 415V, or 440V based on your load.
Q3: Is an OLTC available?
Yes, both On-load and Off-load Tap Changers can be integrated.
Q4: What protection systems are included?
Standard: Buchholz Relay, PRD, OTI, WTI. Optional: SCADA integration, surge arresters.
Q5: How long does delivery take?
Standard units: 20–30 working days. Custom units: Negotiable upon order.
