Factory Direct Sale Three Phase Step Down High Voltage Oil Transformers 400KVA 500KVA 630KVA
Factory Direct Sale Three Phase Step Down High Voltage Oil Transformers 400KVA 500KVA 630KVA Product Specifications Attribute Value Frequency 50Hz, 60Hz Phase Three Coil Number Multi Winding, Three Windings, Two Windings, Single Winding Application Distribution system Coil Structure Round coil ...
400kva oil immersed transformer
,400kva oil immersed electrical transformer
,500kva oil immersed transformer
| Attribute | Value |
|---|---|
| Frequency | 50Hz, 60Hz |
| Phase | Three |
| Coil Number | Multi Winding, Three Windings, Two Windings, Single Winding |
| Application | Distribution system |
| Coil Structure | Round coil |
| Output Voltage | 415V, 220V, 380V, 400V, 440V |
| Input Voltage | 10.5kV, 3kV, 6.6kV, 6.3kV |
| Type | Oil-Immersed Transformer |
| Winding Material | 100% Copper/Aluminum |
| Cooling Method | ONAN |
| Capacity | 400KVA, 500KVA, 630KVA |
| Vector Group | Dyn11 / Yyn0 |
| Temperature Rise | Less than 65°C |
| Efficiency | Up to 99% |
Oil-immersed transformers with optimized cooling channels using pressboard gaskets—supporting both ONAN and ONAF cooling for efficient heat management. Designed for low loss, high efficiency, and excellent cooling performance, our transformers are widely used in power grids, industrial zones, and renewable energy projects. Custom designs are available, fully compliant with IEC, ANSI, and other international standards.
- Significantly reduces operational costs and energy consumption
- Extended maintenance intervals with reduced upkeep costs
- Reduces no-load loss for improved efficiency
- Customization available to meet specific requirements
| Rated capacity (KVA) | Vector Group | Voltage Combination | No-load loss | Load loss | No-load current | Impedance |
|---|---|---|---|---|---|---|
| 30 | Yyn0 / Dyn11 | 10 6.3 6 | 80 | 630 | 1.5 | 4.0 |
| 50 | 100 | 910 | 1.3 | |||
| 63 | 110 | 1090 | 1.2 | |||
| 80 | 130 | 1310 | 1.2 | |||
| 100 | 150 | 1580 | 1.1 | |||
| 125 | 170 | 1890 | 1.1 | |||
| 160 | 200 | 2310 | 1.0 | |||
| 200 | 240 | 2730 | 1.0 | |||
| 250 | 290 | 3200 | 0.9 | |||
| 315 | 340 | 3830 | 0.9 | |||
| 400 | 410 | 4520 | 0.8 | |||
| 500 | 480 | 5410 | 0.8 | |||
| 630 | 570 | 6200 | 0.6 | 4.5 |
We respond within 1 hour with suitable transformer recommendations, competitive quotations, and payment terms. Our technical team will confirm all specifications within 7 days after payment, including technical data, weight, and parts list.
After finalizing production drawings, we prepare materials and conduct rigorous quality inspections. We provide QC reports and test certificates to guarantee product quality. Special accessory requirements can be accommodated.
Our professional team provides installation guidance and on-site support when needed. All products come with a minimum 2-year warranty for your peace of mind.
- In-house R&D and manufacturing ensures quality control
- Fast delivery with quick response to inquiries
- OEM/ODM customization available
- Comprehensive after-sales support
- Extensive export experience worldwide
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