Dry Air Generator For Power Systems

Dry air generators are more unique in power systems for large transformers and reactors.

When the transformer is shipped out from the factory, the heavier insulating oil is extracted and replaced with light dry air, which reduces the transportation cost of the large transformer.

Due to the long maintenance and accident repair time of a large transformer, sometimes it is more than half a month. If there is no absolute dry air filled into the transformer continuously, the transformer body will be seriously wet and rusted, accordingly the transformer insulation performance will be destroyed.

The dry air generator ensures that the internal insulation of the transformer will not get wet during the maintenance process, and the maintenance personnel will not suffocate due to lack of oxygen when working inside the equipment. It can avoid the influence of external climate change, avoid the traditional transformer oil thermal circulation drying method. It can improve the oil’s insulation performance and reduce the moisture, and also ensure the personal safety of maintenance personnel.

Our GF series dry air generator is mainly composed of air compressor, gas storage tank, cold dryer, suction dryer, three-stage precision dry air filter, pressure reducing valve, flow meter and electric control system.

Its features are as below:

  1. The air compressor takes the latest patent Injection screw rotor from ATLASCOPCO and driven by the efficient and maintenance-free device. It features barely supervised, long-term stable and reliable work, self-diagnostic fault and alarm. The machine has automatic restart function after power-off.
  2. No heat regenerative dryer uses the principle of pressure swing adsorption to make the desiccant agent absorbing under the pressure of pipe network, and then switch to desorption under the atmospheric pressure and lead back about 14% of the dry gas from the outlet of drier for further purification regeneration. The two towers are working as above alternatively to provide the user with dry compressed air
  3. Means of control:

It adopts the advanced and reliable microcomputer program controller featured automatic timing, auto-switching work. The machine is working stably and reliably and won’t be affected by the power grid, voltage, electric field effects.

This machine has a power supply voltage, air outlet pressure, air outlet dew point, air outlet temperature, adsorption tower pressure and a series of parameters of real-time display instruments for the operation of equipment at any time can be observed, recorded,  and greatly facilitate the management. .

Pick the models you want as below:

Dry Air Generator
Dry Air Generator
Dry Air Generator
ItemName of ParameterModelUnit GF-50(50m³/h)GF-100(100m³/h)GF-150(150m³/h)GF-200(200m³/h)GF-360(360m³/h)GF-480(480m³/h)
Technical parameter of the equipmentFlowm³/h50100150200360480
Working pressureMpa0.6~0.8
Pressure dropMpa0.05
Working Power (380V-50Hz) 3 Phase 4 Wires, as per buyer’s option
Total electric powerKW171722254858
Outlet pipeDN40/5040/5040/5040/5040/5040/50
Air treatment indexAir outlet pressureMpa0.02~0.04
Dew Point°C-50 ~ -70
Impurity contentμm0.01
Oil content in air outletppm0.01

*The machine size ,weight will change slightly due to different configurations.*