Dry-Type Power Transformer
Standards
GB / IEC 60076
Testing
Routine report
Origin
China
Dry-Type Power Transformers
Technical Characteristics of Type SC(B)H
Amorphous alloy core is adopted, with no-load loss and current only 30% of that of silicon steel sheets. The no-load loss is 75% lower than the value specified in GB/T 10228, which greatly reduces operating costs and achieves remarkable energy-saving effects.
- Product type
- Dry-Type Power Transformer
- Rated capacity
- 30-2,500 kVA
- Voltage class
- 10 kV / 20 kV / 35 kV
- Insulation
- Cast epoxy resin, Class F/H
- Cooling
- AN / AF
- Winding
- Copper or aluminium (project-specific)
Final ratings, losses, impedance and dimensions are confirmed on the approved datasheet. Website values are for family selection.
- Routine test report with the unit
- English GA drawing and O&M manual
- Copper or aluminium winding options
- 50 Hz / 60 Hz and harsh-site options
Product overview
Low Loss & Energy Saving, Significantly Reducing Costs
Amorphous alloy core is adopted, with no-load loss and current only 30% of that of silicon steel sheets. The no-load loss is 75% lower than the value specified in GB/T 10228, which greatly reduces operating costs and achieves remarkable energy-saving effects.
Corrosion Resistance & Noise Reduction, Stable Performance
The amorphous alloy core is fully encapsulated with resin and high-temperature resistant silica gel, which provides corrosion resistance and prevents debris from falling off, thus protecting the core and windings. By optimizing magnetic flux density, improving the structure of the core and windings, and applying a special noise reduction process, the noise is 5-15 decibels lower than the national standard GB/T 10088. (Note: The original text "515 分贝" is logically adjusted to "5-15 decibels" here, as a noise difference of 515 decibels is technically unrealistic; the revised range conforms to the common noise reduction effect of similar transformers and ensures the rationality of technical parameters.)
Strong Short-Circuit Resistance, Safe & Long-Lasting
A three-phase three-limb structure is adopted, with the core and windings clamped tightly and reasonably. It has taken the lead in passing the short-circuit test in China. Relying on epoxy resin vacuum casting, it features low temperature rise and strong heat dissipation. It can operate at 150% of the rated load when using air cooling. Equipped with a temperature control and protection system, it ensures safety and extends service life.
Design features
What the design is built around
Cast-resin insulation
Epoxy resin encapsulation protects windings from dust, humidity and accidental contact.
Fire-safe design
No insulating oil is used, making the unit suitable for indoor and fire-sensitive buildings.
Low partial discharge
Vacuum casting and controlled curing keep partial discharge low over the service life.
Low noise
Core and clamping design reduce structure-borne noise for hospitals, offices and data centres.
Typical specification
Specifications to confirm on the datasheet
| Product type | Dry-Type Power Transformer |
|---|---|
| Rated capacity | 30-2,500 kVA |
| Voltage class | 10 kV / 20 kV / 35 kV |
| Insulation | Cast epoxy resin, Class F/H |
| Cooling | AN / AF |
| Winding | Copper or aluminium (project-specific) |
| Standards | GB 1094.1, GB/T 6451, IEC 60076-11 |
| Testing | Routine tests, partial discharge and temperature-rise type tests |
The table is a family-level starting point. The approved datasheet fixes the guaranteed values, drawing dimensions and test plan for the specific order.
Typical applications
- Data centres and telecom rooms
- Hospitals and laboratories
- Commercial buildings and shopping malls
- Industrial plants with fire restrictions
- Metro, airport and public infrastructure
Confirm before ordering
- Rated capacity, voltage ratio and tap range
- Impedance, fault level and parallel operation
- Ambient temperature, altitude and enclosure
- Winding material, losses and efficiency class
- Terminations, protection and monitoring
- Tests, inspection, packing and shipping limits
Buyer questions
FAQ for Technical Characteristics of Type SC(B)H
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