Transformer Dry Air Generator Set with Dry Clean Gas Supply 120M3/H

REXON  DAG-120 Transformer Dry Air Generator delivers a continuous supply of ultra-dry, clean air for transformer installation, maintenance, and overhaul.

It is designed as a safe, reliable, and cost-effective alternative to nitrogen, protecting transformer insulation from moisture while ensuring a breathable working environment for maintenance personnel.

With its fully enclosed, weather-proof cabinet, the DAG-120 is engineered for stable operation in demanding outdoor and high-humidity conditions.

Applications

Power transformer installation and internal maintenance
Reactor and GIS equipment servicing
Transformer factories and service workshops
Substations and on-site field maintenance
Humid, rainy, or coastal environments require moisture control

1. Ultra-Low Dew Point Performance
Stable dry air output with dew point ≤ –70°C
Effectively prevents moisture ingress into insulation paper and oil

2. No-Heat Regenerative Drying System
Twin-tower adsorption technology
Automatic regeneration without heaters
Continuous operation with low energy consumption

3. High-Purity Air Quality
Multi-stage filtration with 0.01 μm precision
Oil content ≤ 0.003 mg/m³
Solid particle concentration ≤ 0.01 mg/m³

4. Integrated & Compact Design
Built-in air compressor, dryer, and filtration system
Compact footprint with efficient internal layout
Reduced installation time and simplified operation

5. All-Weather Enclosed Cabinet
Fully enclosed structure with wind-proof and rain-proof protection
Suitable for long-term outdoor operation
Protects internal components and extends service life

6. Long-Life Desiccant Technology
Equipped with REXON composite molecular adsorbent
Service life more than three times longer than conventional desiccants

Enhanced Safety
Provides breathable dry air, eliminating oxygen-deficiency risks associated with nitrogen.

Improved Insulation Reliability
Maintains low moisture levels, extending transformer insulation life and performance.

Lower Operating Cost
Eliminates bottled gas logistics and reduces long-term maintenance expenses.

Reliable Field Performance
Designed for continuous operation in harsh environmental conditions.

Easy Operation & Maintenance
Adjustable working cycle and outlet air temperature for flexible site requirements.