GF-50
50m3/h Compact Dry Air Machine for Power Transformers
- YUNENG GF-50 Series compact dry air machine for power transformers is designed to supply dry air.
- The dry air keeps the power equipment’s inner from moisture during maintenance.
- The power equipment includes transformers, reactors, and other large power equipment.
- The dry air compressor is a reliable, convenient, and economical system.
The GF50 is a professional dry air generator for oil-immersed transformers, supplying low dew point -70°C dry air during maintenance to prevent moisture damage and protect insulation.
Featuring a 50 m³/h flow rate, ultra-low dew point, compact structure, and easy deployment, it ensures stable operation for small-scale transformer maintenance.
| Item | Name of Parameter | Model/Unit | GF50 |
| Technical parameters | Nominal flow capacity | m3/h | 50 |
| Working pressure | MPa | 0.6~0.8 | |
| Pressure drop | MPa | 0.05 | |
| Noise | dB(A) | ≤80 | |
| Working power | / | AC380V 50Hz, 3P or as per buyer’s option | |
| Total elecric power | kW | 17 | |
| Pipe diameter of oil outlet/inlet | DN | 40/50 | |
| Size | mm | 2300*1700*2350 | |
| Weight | kg | 1200 | |
| Gas treatment index | Air Outlet Pressure | MPa | 0.02~0.04 |
| Dew Point | °C | -50~-70 | |
| Filtering Accuracy | μm | 0.01 | |
| Oil Content in Air Outlet | ppm | 0.01 | |
| *Due to different equipment configurations, its dimensions, weight index will vary slightly. | |||
1. Compact Mobility
Small footprint and light weight enable easy transport to confined maintenance sites, suitable for on-site transformer maintenance without logistical troubles, greatly improving on-site work efficiency.
2. Superior Moisture Control
Ultra-low dew point effectively eliminates moisture from transformer components, preventing insulation damage and ensuring equipment safety, extending the service life of transformer insulation systems.
3. Safe Operation
Produces breathable dry air, eliminating oxygen deficiency risks for on-site personnel and complying with workplace safety standards, creating a safe working environment for maintenance teams.
4. Energy Efficiency
17 kW power system delivers reliable performance with minimal energy consumption, reducing long-term operational costs and bringing economic benefits to power operators.
5. High Purity Output
0.01 μm filtration and 0.01 ppm oil content ensure contaminant-free air supply, protecting transformer internal components from corrosion and contamination.
1. Small Transformer Overhaul
Thoroughly dries core and winding components during routine maintenance and repair, restoring insulation performance and ensuring safe operation, reducing the risk of post-maintenance failures.
2. Substation Routine Care
Prevents moisture-related failures in small-scale power grid equipment, reducing unplanned downtime and maintaining grid stability, ensuring the normal operation of power supply systems.
3. Emergency Repairs
Provides rapid dry air supply to minimize downtime after transformer leakage, quickly restoring equipment to normal status and reducing economic losses caused by power outages.
4. Reactor Maintenance
Removes moisture to preserve the electrical performance of small reactors, extending their service life and ensuring stable operation, supporting the normal operation of power grid auxiliary equipment.
5. Industrial Power Protection
Safeguards small motors and generators from corrosion and moisture damage, optimizing industrial power system reliability and reducing maintenance costs for industrial enterprises.














