Product Overview
The SC(B)12 dry-type transformer is an upgraded product of SC(B)11 type, adopting more advanced design concepts and manufacturing processes, featuring lower loss, higher efficiency, and better performance. This transformer uses epoxy resin casting technology, featuring fire resistance, explosion-proof, and pollution-free characteristics, suitable for places with high fire protection requirements.
Technical Parameters
| Rated Capacity | 30kVA – 2500kVA |
| High-voltage Side Voltage | 6kV, 10kV |
| Low-voltage Side Voltage | 0.4kV |
| Connection Group | Yyn0, Dyn11 |
| Cooling Method | AN (Air Natural Cooling), AF (Air Forced Cooling) |
| Insulation Class | Class F |
| Short-circuit Impedance | 4% – 6% |
Structural Features
- Core Structure: Uses high-quality high-permeability cold-rolled silicon steel sheets with full miter joint structure to reduce no-load loss and noise.
- Winding Structure: High-voltage windings adopt epoxy resin casting, while low-voltage windings adopt foil structure, with good insulation performance and mechanical strength.
- Shell Design: Uses corrugated steel plate shell, with good heat dissipation performance and protection performance.
- Insulation System: Uses epoxy resin as insulation material, with good heat resistance and insulation performance.
- Protection Devices: Equipped with temperature controller, fan control and other protection devices to ensure safe and reliable operation of the transformer.
Performance Advantages
- High Efficiency and Energy Saving: No-load loss is about 20% lower than SC(B)11 type, and load loss is about 15% lower, meeting national energy-saving standards.
- Safe and Reliable: Uses epoxy resin casting technology, featuring fire resistance, explosion-proof, and pollution-free characteristics.
- Low Noise: Through optimized core structure and winding design, operating noise is 5-10dB lower than SC(B)11 type.
- Easy Maintenance: Reasonable structure, simple inspection and maintenance, no need for regular replacement of insulation oil.
- Long Service Life: Under normal operating conditions, the service life can reach more than 25 years.
- Good Environmental Performance: No transformer oil is used, no pollution to the environment.
Application Scenarios
- High-rise buildings
- Commercial centers
- Hospitals
- Subways
- Airports
- Data centers
- Factory workshops
- Schools
Maintenance
- Regular Inspection: Regularly check the operating status of the transformer, including parameters such as temperature and noise.
- Cleaning Maintenance: Regularly clean the transformer surface and heat sinks to ensure good heat dissipation.
- Insulation Testing: Regularly conduct insulation resistance testing to ensure good insulation performance.
- Fan Maintenance: For air-cooled transformers, regularly check the fan operating status to ensure its normal operation.
- Temperature Controller Inspection: Regularly check the working status of the temperature controller to ensure its normal operation.
Safety Precautions
- The transformer should be installed in a well-ventilated, dry place without corrosive gases.
- Avoid overload operation when the transformer is running.
- Regularly check the grounding device to ensure good grounding.
- Strictly follow operating procedures when operating the transformer.
- When abnormal conditions occur in the transformer, immediately stop operation and conduct maintenance.
- Regularly check protection devices to ensure their normal operation.
