Dry Air Generator For Power Systems

Fri Aug 16 13:43:02 CST 2019

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:

 

 

 

 

Item

Name of Parameter

Model

Unit

 

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 equipment

Flow

m³/h

50

100

150

200

360

480

Working pressure

Mpa

0.6~0.8

Pressure drop

Mpa

0.05

Noise

dB(A)

≤80

Working Power

 

(380V-50Hz) 3 Phase 4 Wires, as per buyer’s option

Total electric power

KW

17

17

22

25

48

58

Size

Length

CM

230

230

230

230

320

320

Width

CM

170

170

170

170

225

225

Height

CM

235

235

235

235

240

240

Outlet pipe

DN

40/50

40/50

40/50

40/50

40/50

40/50

Weight

Kg

1200

1450

1600

1600

1900

2200

Air treatment index

Air outlet pressure

Mpa

0.02~0.04

Dew Point

°C

-50 ~ -70

Impurity content

μm

0.01

Oil content in air outlet

ppm

0.01

 

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

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