The S13 Three-phase Oil-immersed Transformer is a new generation of highly efficient and energy-saving three-phase oil-immersed power distribution transformer.
It adopts advanced amorphous alloy core technology, with extremely low no-load loss. It is one of the most energy-efficient oil-immersed transformers in the 10kV and below power distribution networks at present, and is particularly suitable for power distribution scenarios with low load rates and continuous operation.
1.Ultra-low loss characteristics
• No-load loss is extremely low: 60-70% lower than the S11 series, and 70-80% lower than the S9 series
• Load loss is optimized: comparable to or slightly lower than the S11 series
• Significant energy-saving effect: particularly suitable for operating conditions with low load rates and long no-load periods
2. Advanced Core Technology
• Amorphous alloy material: Utilizes iron-based amorphous alloy strip, with high magnetic permeability and low coercive force
• Unique core structure: Rectangular cross-section, seamless winding structure, reducing magnetic circuit loss
• Low temperature rise characteristic: Low operating temperature, delaying insulation aging
3. Structural and Process Characteristics
• Fully sealed design: Wave-shaped oil tank or expansion-type radiator, maintenance-free
• Low noise operation: Optimized magnetic circuit design, operating noise is 5-10 dB lower than that of S11
• Environmental performance: Compliant with RoHS environmental standards, with high recyclability rate
| Parameter Category | Technical Specifications |
|---|---|
| Rated Capacity | 30-1600kVA (typical capacity range) |
| Rated Voltage | High Voltage Side: 10kV, 10.5kV, 11kV Low Voltage Side: 0.4kV |
| No-Load Loss | 60-70% lower than S11 Example: 130W for 315kVA (450W for S11) |
| Load Loss | Comparable to or slightly better than S11 Example: 3600W for 315kVA |
| No-Load Current | 0.3-0.5% (significantly lower than S11) |
| Impedance Voltage | 4.0-4.5% |
| Insulation Class | Class A (105℃) |
| Temperature Rise Limit | Winding: 60K, Top Oil: 50K |
| Noise Level | ≤45-50dB(A) (measured at 0.3m distance) |
| Connection Symbol | Dyn11, Yyn0 |
| Protection Rating | IP54 (outdoor type) |
| Energy Efficiency Class | Complies with GB 20052 Grade 1 Energy Efficiency Standard |
1.High-efficiency requirement areas
• Urban core areas: commercial centers, financial districts, etc. (areas with high electricity costs)
• 24-hour operation facilities: hospitals, data centers, communication base stations
• Government energy-saving projects: energy-saving renovation demonstration projects for public institutions
2.Industry applications
• Commercial buildings: large shopping malls, hotels, office buildings
• Public utilities: water treatment plants, sewage treatment plants, gas stations
• Transportation: subway, airports, port power supply systems
We offer comprehensive OEM and ODM services tailored to your specific requirements. Should you require customized products, our professional team will provide full support to meet your needs.
