10kV-35kV/0.4kV Oil-Immersed 3-Phase Transformer | 30-2500kVA | DYN11/YYN0 | IEC/IEEE Certified
High-efficiency hermetically sealed oil-immersed 3-phase transformers (30-2500kVA). 10kV-35kV primary, 400V secondary. Copper/aluminum windings, DYN11/YYN0/YND11 configurations. Ideal for industrial plants, solar farms, and grid infrastructure.
Core Advantages
✅ Zero-Leakage Design
- Hermetically sealed tank prevents oil degradation (IP67 protection).
- Maintenance-free for 15+ years (IEC 60076-1 compliant).
✅ Global Voltage Compatibility
- Primary: 6kV/10kV/11kV/15kV/20kV/33kV/35kV
- Secondary: 400V ±5% (50/60Hz)
- Winding Configurations: DYN11, YYN0, YD11, YND11
✅ Energy Efficiency
- 98.5% efficiency @ 75% load (DOE 2023 Tier 4 standards).
- Low no-load losses (<0.5% of rated power).
Technical Specifications
| Parameter | Details |
|---|---|
| Capacity Range | 30kVA – 2500kVA |
| Insulation Class | Class A (105°C) |
| Cooling Type | ONAN (Oil Natural Air Natural) |
| Bushing Standard | IEC 60137 / ANSI C57.19.00 |
| Certifications | IEC 60076, IEEE C57.12.00, CE |
Applications
🏭 Heavy Industry: Steel mills, chemical plants, mining operations
☀️ Renewable Energy: Solar/wind farm grid integration, substations
🏙️ Urban Infrastructure: Hospitals, data centers, commercial complexes
⚡ Utility Grids: Distribution networks, rural electrification
Customization Options
- Winding Material: Copper (low loss) / Aluminum (cost-optimized)
- Tap Changer: ±2×2.5% off-load taps (optional on-load tap changer)
- Seismic Rating: Zone 3/4 compliance (IBC 2021)
- Anti-Corrosion: Coastal-grade paint (C5-M ISO 12944)
