Distribution Transformer 630 kVA Trafindo 20kV ONAN
The 630 kVA Trafindo distribution transformer is the ideal solution for 20 kV medium-voltage power networks. Equipped with a fanless ONAN (Oil Natural Air Natural) cooling system, it offers silent operation, low maintenance, and excellent performance for long-term use. This unit is designed for industrial and commercial applications requiring high efficiency and reliable power.
Manufactured by Trafindo, a top transformer brand in Indonesia, this product is SNI and IEC certified, ensuring it meets international quality and safety standards. Available in custom configurations, it can be tailored to meet specific project requirements.
Technical Specifications
- Rated Capacity: 630 kVA
- Primary / Secondary Voltage: 20 kV / 0.4 kV
- Cooling System: ONAN (Oil Natural Air Natural)
- Frequency: 50 Hz
- Impedance @ 75°C: 4.0%
- No Load Losses: 620 W
- Load Losses: 5800 W
- Exciting Current: 1.5%
- Voltage Regulation: 1.20% (cos φ = 1.0) / 3.24% (cos φ = 0.8)
- Dimensions (L × W × H): 1460 × 930 × 1555 mm
- Oil Volume: 370 Liters
- Total Weight: 1700 kg
Key Features
- High efficiency with only 5800 W load losses
- Heavy-duty construction using industrial-grade materials
- Natural fanless cooling—quiet and low maintenance
- SNI and IEC certified for safety and quality
- Custom configurations available for voltage, tapping, and connection types
Typical Applications
- Medium-scale factories and industrial facilities
- Office buildings, malls, and apartment towers
- PLN distribution substations at 20 kV
- Renewable energy projects (solar, wind)
- Large residential and infrastructure areas
About Sentra Elektrikal Prima
Sentra Elektrikal Prima is an official supplier of Trafindo distribution transformers. We provide expert support, product customization, and reliable service. View our full distribution transformer catalog or explore the industrial electrical section at SentraPrima.com.
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