| Brand | ROCKWILL |
| Model NO. | Amorphous alloy core dry-type transformer |
| Rated voltage | 11kV |
| Rated frequency | 50/60Hz |
| Series | SC(B)H |
SC(B)H/SCL(B)H-200-3150.Main application fields: power plants, substations, industrial and mining enterprises, user power distribution stations, and other level power and distribution systems at 35kV and below.
Classified as a high-efficiency, energy-saving product. Employing three-phase resin-insulated dry-type amorphous transformer technology, meeting the corresponding energy efficiency requirements, with features of high efficiency, energy savings, and stable reliability, suitable for 10kV-level power and distribution systems. Product parameters can be customized, such as capacity, voltage ratio, impedance, noise, losses, K-factor, etc.
| Feature | Description |
|---|---|
| Ultra-low No-load Loss | 70–75% lower than conventional silicon steel dry-type transformers; no-load loss is only ~1/3 of silicon steel core |
| Energy Saving | Significant reduction in operating cost; isotropic soft magnetic material with low magnetizing power |
| High Resistivity | 3–6× that of silicon steel; eddy current loss only 20–30% of silicon steel |
| Flame Retardant & Self-extinguishing | Epoxy resin cast winding, no oil, high fire safety |
| Low Noise | Reasonable magnetic flux density design, special noise reduction materials; well below JB/T 10088 |
| Strong Short-circuit Withstand | Three-phase three-limb / five-limb core structure, compact and robust |
| Moisture & Corrosion Resistance | Core fully encapsulated with resin and high-temperature silicone gel |
| Overload Capability | Can operate at 120–150% rated load with forced air cooling |
| Maintenance Free | No oil, no leakage, suitable for indoor and harsh environments |

| Type | Standard Number | Core Purpose |
|---|---|---|
| International | IEC 60076-11:2018 | Dry-type transformer general rules |
| China Special | GB/T 22072-2018 | Amorphous core dedicated standard |
| China General | GB/T 1094.11-2022 | Domestic dry-type transformer specification |