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:

Item	Name of Parameter		ModelUnit	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.*