Epoxy Resin Cast Dry Type Transformers
Reliable, Safe, and Efficient Power Solutions
As one of the world’s leading dry-type transformer manufacturers, we have over 20 years of profound experience in transformer manufacturing, capable of meeting the global market’s urgent demand for energy-efficient, environmentally friendly, and high-performance transformers. Our company boasts strong technical capabilities and a well-structured, professionally diverse talent pool, including many senior experts in the transformer industry.
To cater to diverse user needs, we offer a wide range of dry-type transformer solutions, including energy-saving dry-type power transformers (SCB series), resin-impregnated dry-type transformers for wind power, photovoltaic, and energy storage industries, energy-saving amorphous alloy dry-type distribution transformers (SCBH series), dry-type transformers for rail transit traction rectification (ZQSCB series), dry-type transformers for polysilicon reduction furnaces (ZSCB series), 24-pulse rectifier transformers, isolation transformers, and more.
Our products are widely used in major industries such as new energy, airports, rail transit, power grids, data centers, petrochemicals, and papermaking. We can provide customized designs to meet the special requirements of different scenarios. Through efficient production and delivery processes, we can quickly respond to customer demands and provide key technical support for global energy transition and carbon neutrality goals.
Industry-Leading Lead Times
1-2 Weeks RFQ Response
2 - 3 Weeks Drawing Approval
5-6 Weeks SCB Dry-Type Transformers
5-6 Weeks Wind power and photovoltaic Transformers
Energy-Saving Dry-Type Power Transformer (SCB Series)
The energy-saving SCB series epoxy resin cast dry-type power transformer, with voltage levels of 10kV, 20kV, and 35kV and a maximum capacity of 5000–25000 kVA, is suitable for three-phase power supply systems with a frequency of 50/60 Hz. It is used for input on the primary side and output on the secondary side of the grid, enabling voltage conversion between the primary and secondary sides.
Additional Features and Benefits
- Compliance Standards: IEC 60076、EN 50588、UL & CE
- Strong overload capacity
- Excellent insulation performance
- Maintenance-free
- Vacuum epoxy resin casting technology
- Complete moisture and dust isolation
- Suitable for high safety and environmental requirements
Current Size Range and Rating Capability
| Parameter | Specification / Details |
|---|---|
| Usage Conditions | Indoor Installation |
| Model | SCB |
| Capacity Range | 30–5000 kVA |
| Rated Voltage | High Voltage: 6, 6.6, 10, 11, 12.47, 13.2, 13.8, 15, 20, 22, 25, 33, 34.5, 35 kV<br>Low Voltage: 0.38, 0.4, 0.415, 0.433, 0.48, 0.69, 0.72 kV<br>Non-standard customization supported |
| Impedance | 4–10% |
| Insulation Class | F, H |
| Vector Group | Dyn11, Yyn0 |
| Insulation Level | 10kV: LI75 AC35/AC5<br>20kV: LI125 AC50/AC5<br>35kV: LI170 AC70/AC5 |
| Standards Compliance | EN 50588, IEC 60076, UL, CE |
SCB Type Solution Advantages
- 1. The coils are vacuum-cast with high-quality flame-retardant Class H epoxy resin, resulting in a smooth and aesthetically pleasing coil surface.
- 2. High mechanical strength and strong short-circuit resistance; excellent moisture resistance, capable of operating at 100% humidity.
- 3. The core is manufactured using imported fully automatic cutting and stacking intelligent production lines. Compared with traditional manual stacking, transformer noise is reduced by 5 dB, and no-load losses are reduced by 5%.
- 4. No preheating is required before commissioning, and no moisture removal treatment is needed for intermittent operation.
- 5. Compact size, lightweight, crack-resistant, surface free of cracks, and low partial discharge.
- 6. High insulation level and excellent lightning impulse withstand performance.
- 7. Maintenance-free, strong heat dissipation capacity; capable of operating at 150% rated load under forced air cooling, significantly improving energy efficiency.
- 8. Flame-retardant, explosion-proof, and pollution-free, allowing direct installation at the load center.
- 9. Low no-load and load losses, delivering notable energy-saving effects.
Cast-Resin Dry-Type Transformers
Specialized power conversion core equipment adapted for new energy (wind power, photovoltaic) generation and energy storage systems. Its core functions include addressing voltage adaptation and ensuring safe power transmission in new energy generation, while meeting special requirements for equipment safety and environmental adaptability in new energy scenarios through unique structural designs.
Additional Features and Benefits
- High reliability in fluctuating wind conditions
- Low-noise operation suitable for turbine installations
- Epoxy resin insulation with high mechanical strength
- Overload capable with optional fan cooling
- Onshore and offshore wind farms
- Grid integration of wind energy
Wind Power Solution Advantages
- 1. Specially Designed Structure: High-voltage leads and low-voltage three-phase copper busbars are routed from the bottom of the coil, ensuring high reliability. This design guarantees stable operation under various working conditions, reduces the probability of failure, and lowers maintenance costs.
- 2. Energy-Efficient Transformer: Improves the overall efficiency of the new energy system by reducing losses during energy transmission.
- 3. Multi-Layer Air Channels in Windings: Increases the heat dissipation area, improves the heat dissipation coefficient, reduces temperature rise, and provides excellent overload capacity. It can withstand long-term operation at loads exceeding 30% of the rated capacity under forced air cooling conditions.
- 4. Compact Structure: Designed to fit the limited installation space in new energy systems. The transformer reduces volume and weight without compromising performance, making it more suitable for installation and layout in energy storage systems.
- 5. Intelligent monitoring function: Enables real-time monitoring and remote control of the transformer's operating status. By integrating intelligent sensors and monitoring devices, operational parameters such as voltage, current, and temperature are collected in real time and transmitted to the energy management system. This facilitates timely detection of potential faults and enables intelligent management and maintenance of the transformer.
Current Size Range and Rating Capability
| Parameter | Specification / Details |
|---|---|
| Usage Conditions | Indoor installation |
| Model | SCB, SC |
| Capacity | 800–25000 kVA |
| Rated Voltage | High Voltage: 10, 11, 13.2, 13.8, 15, 20, 33, 34.5, 35<br>Low Voltage: 0.69, 0.72, 1.14, 10<br>Non-standard customization supported |
| Impedance | 6–10% |
| Frequency | 50Hz, 60Hz |
| Insulation Class | F, H |
| Connection Group | Dy11, Yd11 |
| Insulation Level | 10kV: LI75 AC35<br>20kV: LI125 AC50<br>35kV: LI170 AC70<br>1kV: AC5 |
| Standards Compliance | EN 50588, IEC 60076 |
| Customized solutions | can be provided based on specific application requirements of different scenarios |
Other Transformers
- Energy-Saving Amorphous Alloy Dry-Type Distribution Transformer (SCBH Series)
- Rail Transit Traction Rectifier Dry-Type Transformer (ZQSCB Series)
- Polysilicon Reduction Furnace Dry-Type Transformer (ZSCB Series)
- 24-Pulse Rectifier Transformer
- Isolating Transformer
Transformer Configuration Options
Choose from a variety of enclosure options to meet your specific system needs. Our enclosures are designed to meet all CSA and UL 50 requirements.
Temperature Monitoring
Effective protection measures for overheating of transformer windings;
Standard temperature controller, with PT100 sensors installed at the hottest points of the low-voltage windings to achieve three-phase temperature monitoring function, outputting over-temperature alarm, ultra-high temperature trip, temperature control fault alarm signals and RS485 communication;
Rich non-standard customization functions such as fan operation status, fan fault alarm, core alarm, power loss alarm, Ethernet communication, etc.
Cooling System
In natural cooling mode (AN), it can continuously output 100% rated capacity. When equipped with a forced air cooling system (AF), it can operate at 150% capacity for a short period of time.
The temperature controller automatically controls the start and stop of the cooling fan based on the transformer’s operating temperature, achieving effective cooling.
The axial flow fan has the advantages of low noise, energy saving, uniform cooling, and easy installation.
Shell
Quality Certifications
Daqo Equipment fully meets ISO9001, ISO14001,and OHSAS18001 certifications and standards. Our products meet GB, IEC, IEEE, NEMA, CSA, JEC and other international and domestic electrical engineering standards including UL, CE, and EU.
