Your Professional 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 -
Our S13 series three-phase oil immersed transformers feature a three-dimensional triangular core structure and new insulation design. With their high efficiency, energy-saving,
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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
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Utilizing high-magnetic, low-loss silicon steel, this product boasts significant advantages in high efficiency, high reliability, and low loss, with an operational lifespan of
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The 35kV Double Winding Load Regulating Oil-Immersed Power Transformer. Manufactured in strict compliance with international and national standards, it features high efficiency,
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.
SCB14-Nx2 1250kVA 10kV Smart Forced Air Cooling Dry Transformer
SCB14-Nx2 1250kVA 10kV Smart Forced Air Cooling Dry Transformer is a critical component in medium to large-scale electrical distribution systems, widely used in commercial buildings, industrial facilities, and infrastructure projects. Unlike oil-filled transformers, dry-type units use air as the cooling medium and are designed for indoor installation, offering enhanced safety and reduced maintenance.
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Rated High Voltage |
10kV |
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Rated Low Voltage |
0.4kV |
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Rated Capacity |
1250kVA |
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Connection Symbol |
Dyn11 |
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No-Load Loss |
≤1.2kW |
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Load Loss (120% load) |
≤6.8kW |
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Cooling Method |
AN/AF (Forced Air Cooling) |
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Insulation Level |
170kV/3s |
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Protection Class |
IP30 |
Advantages of Type of SCB14-Nx2 1250kVA 10kV Smart Forced Air Cooling Dry
Fire Safety
Non-flammable design eliminates fire hazards associated with oil-filled units, making them suitable for densely populated or enclosed spaces.
01
Low Maintenance
No oil to monitor or replace reduces operational costs and downtime.
02
Environmental Safety
No risk of oil leaks or soil contamination ensures compliance with environmental regulations.
03
Compact & Space-Efficient
Ideal for installation in electrical rooms, basements, or multi-tenant buildings with limited space.
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Voltage Stabilit
Provides consistent voltage output, protecting sensitive equipment from fluctuations and surges.
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Type of SCB14-Nx2 1250kVA 10kV Smart Forced Air Cooling Dry Transformer
Single-Phase Dry Transformers
Designed for single-phase AC power systems, these transformers are typically used in low to moderate power applications where three-phase supply is not available or necessary.
Three-Phase Dry Transformers
Built to operate on three-phase power systems, these transformers efficiently handle balanced loads and are standard in industrial and large commercial installations requiring 1250 KVA capacity.
Autotransformers
Unlike isolation transformers, autotransformers use a single winding that serves as both primary and secondary, allowing for voltage step-up or step-down with high efficiency and reduced size.
Isolation Transformers
These transformers feature separate primary and secondary windings, providing complete electrical isolation. This design enhances safety and power quality by blocking DC components and suppressing harmonics.
Dual-Voltage Dry Transformers
Engineered with multiple tap settings or dual windings, these transformers support two different input or output voltages, offering flexibility in regions with inconsistent grid standards or multinational operations.
Applications of SCB14-Nx2 1250kVA 10kV Smart Forced Air Cooling Dry
Manufacturing
Powering motors and production lines，Stable voltage under high load, reduced downtime
01
Data Centers
Isolation and clean power supply,Protection against surges and EMI, enhanced uptime
02
Commercial Real Estate
Main distribution for HVAC, lighting, elevators Space-saving, fire-safe, efficient zoning
03
Oil & Gas
Control systems and instrumentation power,No fire risk, noise isolation, chemical resistance
04
Mining
Heavy equipment voltage control,Durability in harsh environments, no oil leaks
05
Rated Capacity: 1250 KVA – capable of supporting heavy-duty electrical loads in industrial plants, data centers, and large commercial buildings.
Primary Voltage: Configurable up to 400V (or higher upon specification), ensuring compatibility with medium-voltage power supply systems.
Secondary Voltage: Standard output of 240V, ideal for powering auxiliary systems, lighting, and HVAC equipment.
Frequency: Operates at 50/60 Hz (standard), not "up to ten hertz" — this correction ensures accuracy, as power transformers are designed for grid-standard frequencies.
Winding Material
Available in copper or aluminum windings. Copper offers superior conductivity and longevity; aluminum provides a cost-effective, lightweight alternative with slightly lower efficiency.
Insulation Class
Typically rated at Class F (155°C) or Class H (180°C), allowing safe operation under high thermal stress.
Cooling Method
Natural Air Cooling (AN) or Forced Air Cooling (AF). As a dry-type transformer, it uses air instead of oil, eliminating fire hazards and environmental contamination risks.
Step-by-Step Installation Guidelines
Foundation Requirements: Construct a solid, level, and textured concrete base capable of supporting the transformer’s full weight (typically 3,000–5,000 kg). This minimizes vibration and prevents structural settling.
Clearance and Ventilation: Maintain minimum clearances as per IEC 60076 or IEEE C57 standards—usually 1 meter on all sides—to ensure adequate airflow and cooling.
Electrical Connections: All wiring must be performed by licensed electricians using properly sized conductors and torque-rated lugs. Phase rotation and grounding must be verified before energizing.
Grounding: Bond the transformer frame to the facility’s grounding system using low-impedance cables to ensure personnel safety and surge protection.
Pre-Energization Check: Inspect for loose connections, foreign objects, and insulation integrity. Perform a megger test to confirm insulation resistance (>1000 MΩ recommended).
Maintenance and Repair
Routine Inspection (Quarterly)
Visually check for signs of overheating (discoloration, insulation cracking), loose hardware, or rodent infestation. Look for corona discharge or arcing marks in high-humidity environments.
Cleaning (Biannual)
Use dry compressed air (max 30 psi) to remove dust and debris from windings and cooling ducts. Avoid water or solvents that could damage insulation.
Connection Tightening (Annual)
Re-torque all electrical and mechanical connections to manufacturer specifications to prevent resistance heating and energy loss.
Thermal Monitoring (Continuous)
Install built-in temperature sensors (RTDs or thermocouples) to monitor winding hot-spot temperatures. Alarms should trigger above 130°C (Class F) or 150°C (Class H).
Insulation Resistance Testing (Annual)
Perform a Megger test (1000V or 5000V DC) to assess insulation health. A reading below 100 MΩ may indicate moisture ingress or aging.
Thermographic Scanning (Biannual)
Use infrared cameras to detect hotspots in connections or windings, enabling predictive maintenance.
Certificates
FAQ
As one of the most reliable transformer manufacturers and suppliers in China, we cover all costs, risks, and your direct expenses. Please feel free to buy high quality transformer at competitive price from our factory. Customized orders are welcome.