11kV 20 0.4kv 3ph 50hz Double Winding Distribution Oil Type MVHV Transformers 630kva 750kva 1500 Kva
11kV 20 0.4kv 3ph 50hz Double-Winding Distribution Oil Type MVHV Transformers 630kva 750kva 1500 Kva
Engineered for medium and high voltage networks, these 630 kVA, 750 kVA, and 1500 kVA double-winding oil-immersed distribution transformers provide reliable step-down power from 11 kV or 20 kV to a 0.4 kV secondary output. Operating smoothly at 3-phase 50Hz, they deliver exceptional thermal efficiency and continuous performance for utility grids, manufacturing plants, and heavy-duty commercial substations.
Key Specifications
- Rated Capacity: 630 kVA, 750 kVA, and 1500 kVA options
- Primary Voltage (HV): 11 kV / 20 kV (MVHV)
- Secondary Voltage (LV): 0.4 kV (400 V)
- Transformer Type: Double-Winding Oil Immersed
- Phase & Frequency: 3-Phase, 50Hz
- Cooling Method: ONAN (Oil Natural Air Natural)
- Vector Group: Dyn11 (Standard for distribution networks)
- Compliance: IEC 60076 Standards
11kV 20 0.4kv 3ph 50hz Double-Winding Distribution Oil Type MVHV Transformers 630kva 750kva 1500 Kva
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Secure your energy supply with the 1000 KVA / 1250 KVA 11 KV Step Down Cast Resin Dry Type Power Transformer. Engineered with CRGO core and UL certification for maximum reliability. Get factory-direct pricing and professional engineering support today.
Technical Specifications
Comprehensive parameters for the 11kV 20 0.4kv 3ph 50hz Double-Winding Distribution Oil Type MVHV Transformers 630kva 750kva 1500 Kva
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Download our comprehensive product catalog and technical manual for full engineering data and installation guidelines.
Download PDF Manual| Parameter | Specification Details |
|---|---|
| Rated Capacity | 630 kVA, 750 kVA, 1500 kVA |
| Primary Voltage (HV) | 11 kV / 20 kV |
| Secondary Voltage (LV) | 0.4 kV (400 V) |
| Phase | 3-Phase |
| Frequency | 50Hz |
| Transformer Design | Double-Winding, Oil-Immersed Distribution |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Vector Group | Dyn11 |
| Insulation Class | Class A |
| Core Material | Cold-Rolled Grain-Oriented (CRGO) Silicon Steel |
| Enclosure Classification | IP54 / Hermetically Sealed |
| Design Standard | IEC 60076 |
| Application | Utility Substations, Industrial Plants, Commercial Grids |
| Warranty | 24 Months |
Get Your Customized Power Solution
Provide your project requirements and our technical engineers will generate a detailed, competitive quotation for the 1000 KVA / 1250 KVA Cast Resin Dry Type Transformer within 12 hours.
12470V / 11KV Step Down Cast Resin Transformer
- Cooling: AN/AF
- Standard: IEC 60076/ANSI
- Vector Group: Dyn11 / Yyn0
- Voltage: 415V / 400V Output
If you have urgent technical questions or bidding deadlines, feel free to contact our senior engineering sales team directly:
Tel / WhatsApp: +8617502139434
Email: sales@millenium-electric.com
Visit Contact Page →We offer full customization for voltage ratings, winding materials (Copper/Aluminum), and enclosure dimensions to seamlessly integrate with your existing power infrastructure and comply with local grid standards.
We provide secure, sea-worthy vacuum packing to prevent humidity and corrosion during transit to any global sea port. Backed by a standard 1-Year comprehensive warranty with lifetime remote technical support.
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