Technical Parameters
| Function | Description | |||
| Oil Volume Compensation | As temperature changes, insulating oil volume expands or contracts. The conservator provides buffer space to prevent excessive tank pressure or low oil level. | |||
| Prevents Oil Oxidation | The small oil-air contact area inside the conservator, combined with a breather (silica gel dryer), effectively reduces oil oxidation and moisture absorption. | |||
| Oil Level Indication | Equipped with an oil level gauge for直观 observation of oil level changes, facilitating daily inspection and maintenance. | |||
| Extends Service Life | Reduces insulating oil degradation, lowers maintenance frequency, and extends transformer service life to over 30 years. | |||
| Parameter | Specification | |||
| Rated Capacity Range | 50kVA ~ 100000kVA | |||
| Rated Voltage | High Voltage Side: 6kV / 10kV / 20kV / 35kV / 66kV / 110kV / 220kV | |||
| Low Voltage Side: 0.4kV / 0.69kV / 3.15kV / 6.3kV / 10.5kV | ||||
| Frequency | 50Hz / 60Hz | |||
| Phase | Three-Phase / Single-Phase | |||
| Connection Group | Dyn11 / Yyn0 / Yd11 / YNd11 | |||
| Cooling Method | ONAN / ONAF / OFAF | |||
| Insulation Class | Class A | |||
| Temperature Rise Limit | Top Oil: ≤ 65K | |||
| Winding: ≤ 65K | ||||
| Impedance Voltage | 4% ~ 12%（Depending on Capacity & Voltage Level） | |||
| Conservator Configuration | Standard Configuration | |||
| Breather | Silica Gel Dryer | |||
| Oil Level Gauge | Tube Type / Magnetic Type Optional | |||
| No. | Capacity (kVA) | No-Load Loss (W) | Load Loss (W) | Impedance (%) | No-Load Current (%) |
| 1 | 50 | 130 | 870 | 4 | 1.3 |
| 2 | 100 | 200 | 1500 | 4 | 1.1 |
| 3 | 160 | 280 | 2100 | 4 | 1 |
| 4 | 200 | 340 | 2500 | 4 | 0.9 |
| 5 | 250 | 400 | 3000 | 4 | 0.8 |
| 6 | 315 | 480 | 3600 | 4 | 0.8 |
| 7 | 400 | 570 | 4300 | 4 | 0.7 |
| 8 | 500 | 680 | 5100 | 4 | 0.7 |
| 9 | 630 | 810 | 6200 | 4.5 | 0.6 |
| 10 | 800 | 980 | 7500 | 4.5 | 0.6 |
| 11 | 1000 | 1150 | 8800 | 4.5 | 0.5 |
| 12 | 1250 | 1360 | 10500 | 4.5 | 0.5 |
| 13 | 1600 | 1640 | 12800 | 4.5 | 0.4 |
| 14 | 2000 | 1940 | 15600 | 5 | 0.4 |
| 15 | 2500 | 2300 | 18500 | 5 | 0.3 |
| 16 | 3150 | 2800 | 22000 | 5.5 | 0.3 |
| 17 | 4000 | 3400 | 26000 | 6 | 0.3 |
| 18 | 5000 | 4100 | 31000 | 6 | 0.3 |
| 19 | 6300 | 5000 | 38000 | 6.5 | 0.2 |
| 20 | 8000 | 6100 | 47000 | 7 | 0.2 |
| 21 | 10000 | 7300 | 57000 | 7 | 0.2 |
Note 1: Load loss values are based on a reference temperature of 75°C.
Note 2: Short-circuit impedance varies by capacity:
- 4% for 630kVA and below
- 4.5% for 800kVA–1250kVA
- 5% for 1600kVA–2500kVA
- 6% for 3150kVA–5000kVA
- 6.5%–7% for 6300kVA and above
| Capacity (kVA) | L / Length (mm) | W / Width (mm) | H / Height (mm) | Weight (kg) |
| 30 | 900 | 700 | 800 | 250 |
| 50 | 1000 | 750 | 850 | 320 |
| 80 | 1100 | 800 | 900 | 400 |
| 100 | 1150 | 850 | 950 | 460 |
| 125 | 1200 | 900 | 1000 | 530 |
| 160 | 1250 | 950 | 1050 | 610 |
| 200 | 1300 | 1000 | 1100 | 700 |
| 250 | 1350 | 1050 | 1150 | 800 |
| 315 | 1400 | 1100 | 1200 | 920 |
| 400 | 1450 | 1150 | 1250 | 1050 |
| 500 | 1500 | 1200 | 1300 | 1220 |
| 630 | 1550 | 1250 | 1350 | 1420 |
| 800 | 1650 | 1300 | 1450 | 1720 |
| 1000 | 1750 | 1350 | 1550 | 2060 |
| 1250 | 1850 | 1400 | 1650 | 2440 |
| 1600 | 1950 | 1450 | 1750 | 2900 |
| 2000 | 2050 | 1500 | 1850 | 3450 |
| 2500 | 2150 | 1550 | 1950 | 4100 |
Note: The above dimensions are reference values. Specific dimensions can be customized according to customer requirements.
Product Features
| Feature | Description | |||
| With Conservator Design | Conservator provides oil volume buffer space, prevents oil oxidation and moisture absorption, extending transformer service life. | |||
| High Efficiency | S13 series no-load loss reduced by approx. 25% compared to S11, delivering significant energy savings and reducing long-term operating costs.* | |||
| Excellent Heat Dissipation | Oil-immersed self-cooling or forced oil circulation cooling design provides high heat dissipation efficiency, suitable for continuous operation. | |||
| Strong Overload Capacity | Reasonable structural design allows for high overload capacity in short periods. | |||
| Stable Operation | High-quality materials and advanced processes ensure excellent insulation performance, strong short-circuit withstand capability, and high operational reliability. | |||
| Long Service Life | Robust construction, easy maintenance, and a design life of over 30 years. | |||
Applications
| Application | Recommended Capacity | Key Advantages | ||
| Substations | 1000-100000kVA | High reliability, large capacity transmission and distribution | ||
| Power Plants | 1000-100000kVA | Step-up grid connection, stable operation | ||
| Industrial Enterprises | 315-10000kVA | High overload capacity, suitable for industrial environments | ||
| Power Grid Distribution | 100-10000kVA | Stable operation, easy maintenance | ||
| New Energy Step-Up Substations | 1000-100000kVA | Adaptable to wide voltage fluctuation, efficient grid connection | ||
| Residential Communities | 315-2000kVA | Reliable operation, cost-effective | ||
Selection Guide
| HV Side Voltage | Applicable Scenario | ||
| 6kV / 10kV | Urban Distribution Network, Industrial Enterprises | ||
| 20kV / 35kV | Industrial Parks, New Energy Projects | ||
| 66kV / 110kV | Regional Substations | ||
| 220kV | Large Hub Substations | ||
| Cooling Method | Description | ||
| ONAN | Oil-immersed self-cooling, suitable for small to medium capacity | ||
| ONAF | Oil-immersed forced air cooling, suitable for large capacity | ||
| OFAF | Forced oil circulation forced air cooling, suitable for extra large capacity | ||
Customization Services
Sline provides comprehensive customization services for S13 series oil-immersed transformers based on your project requirements:
| Customization Option | Description | |||
| Capacity Customization | 50kVA ~ 100000kVA / Full range coverage | |||
| Voltage Customization | HV: 6kV-220kV, LV: 0.4kV-10.5kV and non-standard voltages | |||
| Connection Group | Dyn11 / Yyn0 / Yd11 / YNd11 / Optional | |||
| Cooling Method | ONAN / ONAF / OFAF / Optional | |||
| Conservator Type | Tube Type / Capsule Type / Diaphragm Type Optional | |||
| Breather | Standard / Maintenance-Free Optional | |||
| Special Environment | High altitude, coastal salt fog, explosion-proof, etc. | |||
For detailed technical drawings or customized solutions, please contact the Sline technical team. We will provide one-on-one engineer-led service throughout the process.
