Products Description
The Un-packed H Grade Dry Transformer is a high-performance dry-type transformer designed for reliable operation in high-temperature and high-load environments. Unlike conventional oil-filled transformers, this dry transformer uses H-class insulation materials (up to 180°C) and air-cooled winding design, ensuring excellent thermal endurance, safety, and maintenance-free operation.
Manufactured by Weshare, the product is built according to IEC 60076 and GB/T 10228 standards, ensuring full compliance with international performance and safety requirements. It is ideal for use in factories, substations, hospitals, data centers, and commercial buildings where fire safety, noise reduction, and long service life are critical.
High Efficiency & Low Loss Design
Core manufactured from cold-rolled grain-oriented silicon steel (CRGO) with precise lamination to minimize no-load loss and noise.
No-load loss: ≤ 1.3 W/kg
Load loss: ≤ 2.0 W/kg
Efficiency: ≥ 98%
Un-packede H Grede Dry Transformer Product parameters
| Parameter | Value | Standard |
|---|---|---|
| Rated Power | 50 kVA – 2500 kVA | IEC 60076 |
| Frequency | 50 / 60 Hz | IEC |
| Voltage Class | Up to 35 kV | IEC / GB |
| Insulation Class | H (180°C) | IEC 60085 |
| Cooling Method | AN / AF (Air Natural / Air Forced) | IEC 60076-11 |
| Connection Group | Dyn11 or Customized | - |
| Impedance Voltage | 4% – 6% | IEC |
| Noise Level | ≤ 50 dB | GB 1094 |
| Protection Class | IP00 (Unpacked Type) | IEC 60529 |
| Temperature Rise | ≤ 100 K (Winding) | IEC |
| Standard Compliance | IEC, GB, ISO 9001, CE | - |
Applications
The Unpacked H Grade Dry Transformer is suitable for a wide range of industrial and commercial power distribution systems:
Industrial facilities: metallurgy, chemical plants, textile mills
Data centers & hospitals: high safety and continuous operation environments
Infrastructure projects: airports, subway stations, tunnels
Renewable energy systems: solar and wind power converters
Commercial buildings: shopping malls, office towers, hotels
The dry construction eliminates risks of fire, leakage, and environmental contamination, making it a preferred solution for urban and indoor installations.
anufacturing & Quality Control
At Weshare, we manufacture dry-type transformers with advanced vacuum casting and pressure impregnation technology (VPI) to ensure superior dielectric strength and mechanical robustness.
Each transformer undergoes rigorous testing before delivery, including:
-Winding resistance test
-Insulation resistance test
-Turns ratio test
-Induced over-voltage test
-Partial discharge measurement
-Temperature rise and noise test
Certificates: ISO 9001:2015 | CE | RoHS | IEC Type Test Report | SGS Material Certification
We guarantee that every unit shipped meets or exceeds the customer's technical and reliability expectations.
Optional Accessories
-Protective enclosure
-Temperature controller
-Oil level indicator
-Digital monitoring system
-Anti-vibration mounting kit
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