| Params | 1. **Rated Capacity**
Covers 20 standard ratings from 30 kVA to 4000 kVA: 30, 50, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150 and 4000 kVA.
2. **Voltage & Connection Configuration**
- High voltage side: Available in 6 kV, 6.3 kV, 6.6 kV, 10 kV, 10.5 kV and 11 kV.
- Low voltage side: Standard 0.4 kV.
- Voltage tapping ranges: Two options — ±2×2.5% / ±5%, and ±5/±2×2.5%.
- Connection symbols: Dyn11 and Ynyn0.
3. **Loss Performance**
- No-load loss: Ranges from 0.14 kW (30 kVA) to 4.3 kW (4000 kVA), with values decreasing proportionally as capacity rating increases.
- Load loss (Class B 155°C insulation system, referenced to 120°C): Ranges from 0.71 kW (30 kVA) to 27 kW (4000 kVA), scaling with rated capacity.
4. **Electrical Specifications**
- No-load current: Gradually drops from 2% at 30 kVA to 0.6% at 4000 kVA.
- Short-circuit impedance: 4% for units up to 630 kVA; 6% for units from 800 kVA to 4000 kVA.
5. **Weight**
Total product weight ranges from 270 kg for the 30 kVA model to 6300 kg for the 4000 kVA model, increasing in line with rated capacity. | Material | Core
High-quality grain-oriented electrical steel, optimized for low core loss and efficient magnetic performance.
Windings
High-purity copper or aluminum conductors, depending on project requirements.
Insulation System
High-performance epoxy resin, insulating paper, pressboard and other transformer-grade insulation materials.
Resin System
Vacuum-cast epoxy resin insulation provides strong mechanical strength, moisture resistance and reliable dielectric performance.
Enclosure
High-strength steel enclosure with protective coating, available in different IP ratings for indoor or outdoor applications.
Terminals & Conductive Components
High-quality copper or aluminum conductive components with appropriate insulation and connection structures. |
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