Your Professional Dry Transformer Supplier
Zhejiang GangHeng Electric Co., Ltd., founded in 2004, is a manufacturer of high- and low-voltage switchgear and transformers. Our team covers R&D, production, and quality control, with stable technical staff and experienced engineers. The factory is located in Jiangshan City, Zhejiang, in a major transport hub that supports fast delivery. We operate modern production lines with CNC punching, CNC bending, and laser cutting machines, along with dedicated copper busbar and testing equipment.
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GangHeng (2004-founded National High-Tech Enterprise, selected by State Grid) SCB14-Nx2 1250kVA 10kV Smart Forced Air Cooling Dry Transformer, compatible with cast coil dry type -
GangHeng (2004-founded National High-Tech Enterprise, selected by State Grid) SGB10 2500kVA 10kV IP54 Protection Dry Type Power Transformer, compatible with high voltage dry type
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Zhejiang GangHeng (2004-founded National High-Tech Enterprise, selected by State Grid) SCBH15 315kVA 10kV Solar PV Low No-Load Loss Dry Transformer, compatible with dry type
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GangHeng (founded 2004, National High-Tech Enterprise) SCB11 800kVA 10kV/0.4kV Power Distribution Dry Type Transformer, compatible with dry distribution transformer for
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GangHeng (founded 2004, National High-Tech Enterprise) SC(B)18 2000kVA 10kV Resin Insulated Industrial Dry Transformer, compatible with Epoxy Resin Cast Transformer, CQC/ISO
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GangHeng Electric (founded 2004, National High-Tech Enterprise) supplies SGB 10kV 500kVA Eco-Friendly Non-Encapsulated Dry Transformer, compatible with dry resin transformer for
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Zhejiang GangHeng (founded 2004, National High-Tech Enterprise, State Grid-selected) supplies SCBH15 1600kVA 10kV/0.4kV energy-saving amorphous alloy dry transformer, compatible
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Zhejiang GangHeng (founded 2004, National High-Tech Enterprise) provides SCB13 10kV 1000kVA epoxy cast copper winding dry transformer, compatible with 500kva dry type transformer,
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Gangheng SC(ZB)9/SC(ZB)10 Series 10kV Dry-type Transformer, relying on the company’s core technology of electric furnace/rectifier transformers, features strong short-circuit
Why choose us
Certifications
We are ISO9001、 ISO14001 、OHSAS18001、CQC product certification, high-voltage cabinet type test report and various patent certificates, etc.
Production Market
Our The products are sold to various provinces across the country as well as to countries such as Iran, Kyrgyzstan, Zimbabwe, and Tanzania
Custom Solutions
We offer tailored solutions for OEM/ODM projects. Whether adapting our switchgear or transformers for specific needs, our CNC production equipment ensures precise customization.
After-Sales Support & Warranty
We stand behind our products with a 1-year free warranty and 5-year latent defect coverage, ensuring long-term reliability. In case of technical issues, we provide on-site support and take full responsibility for any technical guidance errors, giving customers peace of mind throughout the product's lifecycle.
SCB13 10kV 1000kVA Epoxy Resin Cast Copper Winding Dry Transformer
SCB13 10kV 1000kVA Epoxy Resin Cast Copper Winding Dry Transforme is a new upgrading generation product. Its no-load loss reduces by 5% compared with model scb12, and 20% lower than that of scb11, showing significant energy-saving effect. Meanwhile, it is safe, fire-retardant, pollution-free, maintenance free and easy installation. With good moisture-proof performance, it can restart without pre-drying after shutdown. This model shows low loss, low partial discharge and low noise. Under forced air cooling, it can operate at 120% of rated overload. Perfect temperature protection and control system provides reliable guarantee for the safe operation of the transformer.
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Rated High Voltage |
10kV |
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Rated Low Voltage |
0.4kV |
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Connection Symbol |
Dyn11 |
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Rated Capacity |
1000kVA (compatible with 500kva dry type transformer for small-capacity needs) |
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Insulation Level |
170kV/3s |
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Cooling Method |
AN (Air Natural) |
Features of SCB13 10kV 1000kVA Epoxy Resin Cast Copper Winding Dry Transformer
Low loss: The no-load loss of the product is 20%+ lower than that of scb11 product, with good energy-saving effect, economic operation and free for maintenance.
Low noise: The noise of this product is 10-15 dB lower than the "6-220 kV transformer sound level" of the current professional standard JB / T 10088-1999.
Low partial discharge: Adopt advanced mixing and vacuum membrane degassing technology to evenly mix the resin and remove bubbles in the mixture. This kind of raw material has dense solidification structure and can resist natural gas, explosion and environmental pollution.All high and low Voltage coils are injected under vacuum pressure. The local discharge electrode of this product is low and can be controlled below 5pc.
Safety materials: Glass fiber and other insulating materials have automatic stop characteristics, and resin will not produce toxic and harmful gas at high temperature,and will not produce arc when in short circuite.
High mechanical strength: Filling resin reduces the difference of injection expansion coefficient, small curing shrinkage, small internal stress and high hardness of solidified body. The epoxy resin coating on the inner and outer surfaces of high and low voltage coils has the same structure as steel reinforced concrete. Its mechanical strength is greater than that of pure epoxy resin, and it can withstand the action of sudden short-circuit electrodynamic force without damage.
Advantages of SCB13 10kV 1000kVA Epoxy Resin Cast Copper Winding Dry Transformer
High Safety and Reliability: Fireproof, explosion-proof, and moisture-resistant features, combined with strong short-circuit resistance and lightning strike endurance, significantly reduce operational risks, ensuring the safety of equipment and the surrounding environment. It is particularly suitable for high-risk locations.
Strong Operational Adaptability: Excellent heat dissipation and support for forced air cooling expansion, along with superior overload capacity, enable it to handle various load fluctuations. Structural advantages such as crack resistance and sudden short-circuit resistance extend the equipment's lifespan and reduce failure rates.
Intelligence and Convenience: The temperature controller's multiple alarm, trip, and black box functions facilitate timely detection and resolution of equipment issues. Support for centralized computer monitoring and control simplifies management processes and enhances maintenance efficiency.
Wide Applicability: Integrating multiple advantages such as safety, performance, and intelligence, it can meet the strict usage requirements of various scenarios, from civilian buildings to high-risk industrial sites, with a comprehensive application range.
Applications of SCB13 10kV 1000kVA Epoxy Resin Cast Copper Core
Urban power distribution
Directly installed at the load center, reducing line losses, suitable for high-rise buildings, commercial centers, residential communities, etc.
Industrial loads
Meets the needs of three-shift operation, with significant economic benefits at a load rate of 50%-80%, suitable for manufacturing, petrochemical industries, etc.
Special environments
Adaptable to harsh conditions such as subways, power plants, ships, and offshore drilling platforms, possessing moisture-proof, heat-resistant, and corrosion-resistant capabilities.
Intelligent Monitoring and Protection of SCB13 10kV 1000kVA Epoxy Resin Cast Copper Core
Temperature Control System
Equipped with an intelligent temperature controller to monitor winding temperature in real time. It features fault alarm, over-temperature alarm, and over-temperature trip functions. It connects to a computer via an RS485 serial interface for centralized monitoring and control.
Interference Resistance
Complies with national electromagnetic compatibility standards, ensuring stable operation in complex electromagnetic environments.
Structure and Materials of SCB13 10kV 1000kVA Epoxy Resin Cast Copper Core
Winding Design
High Voltage Winding: Utilizes copper strip (foil) winding, vacuum-cast with epoxy resin and cured to form a high-strength fiberglass structure. This design enhances the winding's mechanical strength and improves its resistance to sudden short circuits. Simultaneously, fiberglass mesh reinforces the inner and outer surfaces of the coil, further optimizing heat dissipation.
Low Voltage Winding: Also employs a foil structure, resolving the axial helix angle issue in traditional wire winding methods, resulting in a more balanced ampere-turn distribution. TD anode epoxy resin pre-impregnated fabric is used between winding layers, forming a robust structure after overall curing. Axial cooling channels are incorporated to enhance heat dissipation.
Core and Insulation
Core Material: High-permeability, high-quality grain-oriented cold-rolled silicon steel sheets are selected. A fully skewed terminal structure is used, with the core column bound using F-grade non-woven adhesive tape. The core surface is coated with an epoxy resin encapsulation layer. This design significantly reduces no-load loss, no-load current, and core noise.
Insulation Class: Reaches F or H class, allowing for safe long-term operation at temperatures of 155℃ or 180℃, exhibiting excellent temperature resistance.
Protection and Cooling
Protection Class: Offers various protective enclosure options including IP00, IP20, and IP23, with materials including cold-rolled steel or stainless steel to meet diverse environmental requirements.
Cooling Method: Supports natural cooling (AN) or forced air cooling (AF). Under forced air cooling, rated capacity can be increased by 40%-50%, allowing long-term operation at 140% rated load. The cooling fan adopts a cross-flow top-blowing design, featuring low noise, high air pressure, and an aesthetically pleasing appearance.
Installation Environment Requirements
Altitude: The installation altitude should not exceed 2000 meters. For environments above this altitude, a temperature rise correction factor of 0.92 should be used, with the allowable winding temperature rise increasing by 0.4℃ for every 100 meters increase in altitude.
Temperature: The ambient temperature range is -25℃ to 40℃. If the temperature exceeds this range, special design modifications are required.
Humidity: The daily average relative humidity should not exceed 95%, and the monthly average relative humidity should not exceed 90%. For coastal areas, an IP4X salt spray resistant enclosure should be selected.
Ventilation: The transformer room must be well-ventilated, with a temperature difference between the inlet and outlet air vents of less than 10℃. For transformers with enclosures, the temperature difference should be less than 15℃. The required ventilation volume is approximately 3-4 cubic meters per minute per kilowatt loss.
Clearance: The transformer should be installed at least 800 mm away from walls and other obstructions, with a minimum clearance of 300 mm between adjacent transformers.
Maintenance
Pre-operation checks
Before putting the transformer into operation, check for loose fasteners, ensure correct electrical connections, verify reliable grounding, and confirm that the temperature controller and cooling fan are functioning properly.
Daily checks
Regularly check the transformer for abnormal sounds, vibrations, or odors. Inspect the winding surfaces for overheating, discoloration, or damage. Ensure the ventilation system is unobstructed and the fans are operating normally.
Dust removal
Clean the transformer regularly to remove accumulated dust, especially from the ventilation ducts. Use a vacuum cleaner or compressed air (2-5 bar) to clean the ducts. Excessive dust can impair heat dissipation and degrade insulation performance.
Maintenance cycle
For transformers installed in clean environments, an annual inspection is sufficient. For transformers installed in dusty or chemically contaminated environments, inspections should be performed every 3-6 months. A major overhaul is recommended every 5 years, including measuring insulation resistance, performing DC resistance tests, and checking for winding deformation.
Certificates
FAQ
As one of the most reliable dry transformer manufacturers and suppliers in China, we cover all costs, risks, and your direct expenses. Please feel free to buy high quality dry transformer at competitive price from our factory. Customized orders are welcome.
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