GF200
200m3/h High Efficiency Dry Air Generator for Transformer Maintenance
- 200m3/h high-efficiency dry air generator for transformer maintenance produced by YUNENG is suitable for supplying dry air for transformer maintenance.
- Dry air keeps the insulation of transformers and other power facilities in good condition.
- Operators will not have a shortage of oxygen when maintaining transformers with the dry air generator for transformer maintenance.
- Using the GF Dry Air Generator for Transformer Maintenance saves time and improves efficiency.
The GF200 is an efficient dry air generator for large oil-immersed transformers, delivering high-volume, low dew point -70°C dry air to protect insulation and avoid equipment failures.
Engineered for long-term stable operation, it ensures consistent efficiency for large-scale power equipment maintenance.
| Item | Name of Parameter | Model/Unit | GF200 |
| Technical parameters | Nominal flow capacity | m3/h | 200 |
| 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 | 25 | |
| Pipe diameter of oil outlet/inlet | DN | 40/50 | |
| Size | mm | 2300*1700*2350 | |
| Weight | kg | 1600 | |
| 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. High-Volume Output
200 m³/h flow rate enables rapid drying of large transformer structures, significantly shortening maintenance cycles for large power equipment and improving maintenance efficiency.
2. Energy Optimized
25 kW power system delivers maximum drying efficiency with minimal energy waste, lowering long-term operational costs for power utilities and achieving energy conservation.
3. Precision Purification
0.01 μm filtration removes micro-contaminants to protect sensitive components, ensuring the integrity of transformer insulation and reducing insulation failure risks.
4. Scalable Design
Adapts to diverse large-scale power equipment drying requirements, suitable for various large transformer and reactor maintenance, with strong versatility.
5. Rapid Recovery
Minimizes power outage durations for critical grid infrastructure, restoring grid stability quickly after maintenance or emergencies and ensuring grid reliability.
1. Large Transformer Overhaul
Dries core and tank components to restore insulation performance, ensuring reliable operation of large oil-immersed transformers after maintenance, supporting stable grid operation.
2. EHV Equipment Maintenance
Ensures compliance with strict high voltage safety standards, protecting HV transformers and switchgear from moisture damage and ensuring HV grid safety.
3. Long-Term Projects
Supports extended maintenance and retrofitting of large power equipment, providing continuous dry air supply for uninterrupted work and ensuring project progress.
4. Power Plant Operations
Dries generators and step-up transformers for stable energy output, ensuring the normal operation of power plants and meeting social power demand.
5. Grid Emergency Recovery
Rapidly mitigates moisture-related failures to restore grid stability, protecting critical power grid infrastructure and reducing power outage losses.














