Oil Immersed Electrical HV/MV Transformer 400kVA - 1000kVA 3 Phase Ynd11 Vector Connection
Product Specifications
| Type | Distribution Transformer, Oil-filled Transformer |
| Material | Copper Winding |
| Frequency | 50Hz, 60Hz |
| Phase | Three |
| Input Voltage | 6kV, 10kV, 15kV, 35kV, 69kV, 100V, 110kV |
| Output Voltage | 400V, 208V, 200V, 415V, 127V, 9V |
| Insulation Class | Class F |
| Vector Connection | Ynd11 |
Key Features
- Compliance with IEC, ANSI, and IEEE standards for safety and performance
- Compact and robust construction for space-saving and long-lasting use
- Energy efficient design with reduced no-load losses and low noise operation
- De-energized tap-changer for flexible voltage regulation
- Hermetic sealing to prevent moisture ingress and maintain oil quality
Technical Advantages
- Optimized for 35kV medium voltage networks in industrial zones and utility substations
- Stable three-phase power supply for heavy-duty equipment
- Efficient oil-immersed cooling system using mineral/ester insulating oil
- Reduced carbon footprint through minimized energy losses
- Cost-effective solution with long lifespan and low maintenance
Technical Specifications (35kV Three-Phase Oil Immersed Transformer)
| Capacity (kVA) | HV (kV) | LV (kV) | No-load Loss (W) | On-load Loss (W) | No-load Current (%) | Short Circuit Impedance (%) |
| 630 | 35 | 3.15/6.3/10.5 | 830 | 7870 | 1.1 | 6.5 |
| 800 | 35 | 3.15/6.3/10.5 | 980 | 9410 | 1.0 | 6.5 |
| 1000 | 35 | 3.15/6.3/10.5 | 1150 | 11540 | 1.0 | 6.5 |
| 1250 | 35 | 3.15/6.3/10.5 | 1410 | 13940 | 0.9 | 6.5 |
| 1600 | 35 | 3.15/6.3/10.5 | 1700 | 16670 | 0.8 | 6.5 |
| 2000 | 35 | 3.15/6.3/10.5 | 2180 | 18380 | 0.7 | 6.5 |
| 2500 | 35 | 3.15/6.3/10.5 | 2560 | 19670 | 0.6 | 6.5 |
| 3150 | 35-38.5 | 3.15/6.3/10.5 | 3040 | 23090 | 0.56 | 7.0 |
| 4000 | 35-38.5 | 3.15/6.3/10.5 | 3620 | 27360 | 0.56 | 7.0 |
| 5000 | 35-38.5 | 3.15/6.3/10.5 | 4320 | 31380 | 0.48 | 7.0 |
Our Manufacturing Process
Step 1: Consultation & Design
Our technical team responds within 1 hour to recommend suitable transformers and provide quotations. After payment confirmation, we finalize production drawings within 7 days, including all technical specifications and parts lists.
Step 2: Production & Quality Control
Strict material screening followed by precision manufacturing. Comprehensive quality inspections include QC reports and test documentation. Factory Acceptance Tests (FAT) available upon request.
Step 3: Installation & Support
Professional installation guidance with optional on-site support. All transformers come with a minimum 2-year warranty and ongoing technical assistance from our global network.
About HENTG POWER
How do we guarantee quality?
Pre-production samples, final inspections before shipment, and comprehensive QC/test reports. We manufacture oil-type and dry-type transformers up to 500KV/480MVA, complying with ANSI/IEEE/DOE2016/CSA/IEC60076 standards.
Why choose us?
30+ senior engineers provide 24/7 technical support with 30-minute response times. Custom drawings confirmed within 7 days. Global installation and maintenance network.
What services do we provide?
OEM manufacturing, custom design solutions, and flexible payment terms. Complete power system solutions including GIS, switchgear, and substations.
