Portable mini degasifier for insulating and dielectric fluids
Drying and degassing small oil volumes — pole-mounted transformers, bushings, conservators or barrels — only takes a cart-mounted high-vacuum mini degasifier, without bringing in a full treatment plant. The AE865C processes 230 l/h at 60 Hz with a vacuum blank-off below 0.025 mbar and leaves the oil with less than 10 ppm of water (ASTM D-1533 / D-1744) and less than 0.25 % of gas (ASTM D-831 / D-2945), with at least 40 kV of dielectric strength on new oil (ASTM D-877), on a 125 kg cart that runs unattended.
AE865C key data
- Treated oil quality: the AE865C leaves less than 10 ppm of water (Karl Fischer, ASTM D-1533 / D-1744), less than 0.25 % of total gas (ASTM D-831 / D-2945) and at least 40 kV of dielectric strength with new oil (ASTM D-877).
- Flow rate: 230 l/h at 60 Hz, sized for pole-mounted transformers, bushings, conservators and individual barrels.
- Vacuum: blank-off below 0.025 mbar (20 µm Hg) with a 10 m³/h rotary vane vacuum pump and accelerator elements in the degasification chamber.
- Heating: 3 kW heater that raises the oil temperature by 27 °C in a single pass, with a temperature controller that drops the heating on loss of power or vacuum.
- Filtration: 60-mesh inlet strainer and 3 µm final filter.
- Unattended operation: high-level detector that stops the vacuum pump, low-level switch protecting the discharge pump, NEMA 12 control cabinet and connection for an optional vacuum controller.
- Mobility: 1170 × 585 × 585 mm, 125 kg cart with 250 mm pneumatic tyres, 3 m power cord and two 3 m rubber hoses with camlock couplings.
- Power supply: 230 V single-phase at 60 Hz; other voltages on request.
Advantages
High vacuum that goes low
The vacuum system reaches a blank-off rating below 0.025 mbar (20 µm Hg), the level needed to strip water and dissolved gases from the oil in one continuous process.
Results verified by ASTM methods
Output oil carries less than 10 ppm of water (ASTM D-1533 / D-1744, Karl Fischer) and less than 0.25 % of total gas (ASTM D-831 / D-2945); new oil reaches at least 40 kV of dielectric strength by ASTM D-877.
Sized for small oil volumes
With 230 l/h of throughput at 60 Hz, the cart matches pole-mounted transformers, bushings, conservators and individual barrels without oversizing.
Runs unattended
Once connected it completes the cycle on its own; a connection is provided for an optional vacuum controller that automates the process further.
Made to move
The 250 mm pneumatic tires, the 3 m power cord and two 3 m hoses with camlock couplings take the unit to the transformer, not the other way round.
Applications
- Oil processing in pole-mounted transformers.
- Bushings, conservators and other small oil volumes.
- Individual barrels of insulating or dielectric fluid.
- Periodic drying and degassing during maintenance.
About the product
The AE865C combines a 3 kW heater, high-performance accelerator elements in the vacuum chamber and a 3 µm after-filter on a cart of 1170 × 585 × 585 mm and 125 kg; it is supplied with a 3 m power cord and two 3 m rubber hoses with camlock couplings, with an optional vacuum controller and other supply voltages available on request.
Technical specifications
| Flow rate | 230 l/h at 60 Hz |
| Final water content | Below 10 ppm (ASTM D-1533 / D-1744) |
| Final gas content | Below 0.25 % (ASTM D-831 / D-2945) |
| Dielectric strength | At least 40 kV with new oil (ASTM D-877) |
| Filtration | 3 µm |
| Vacuum | Blank-off below 0.025 mbar (20 µm Hg) |
| Heater | 3 kW |
| Supply voltage | 230 V, 1-phase, 60 Hz; other voltages on request |
| Dimensions and weight | 1170 × 585 × 585 mm; 125 kg |
| Vacuum pump | Rotary vane, 10 m³/h |
| Temperature rise | 27 °C in a single pass (heater watt density 1.7 W/cm² max.) |
| Protections | High-level detector stopping the vacuum pump; low-level switch on the discharge pump; NEMA 12 cabinet |
Frequently asked questions
From what inlet oil are the AE865C final values guaranteed?
The AE865C specification starts from oil with 100 ppm of water and fully saturated with air at 12 % by volume, processed at the rated capacity with a minimum oil supply temperature of 2 °C: at the outlet it holds less than 10 ppm of water, less than 0.25 % of gas and at least 40 kV of dielectric strength with new oil.
Which automatic protections let the AE865C run unattended?
The temperature controller drops the 3 kW heater on loss of power or vacuum and resumes when they return; a high-level detector stops the vacuum pump to prevent flooding, a low-level switch keeps the discharge pump from running without oil and a vacuum trap protects the pump from water carry-over. The motors have overload protection in a NEMA 12 control cabinet.
Which oils can it process?
Insulating and dielectric fluids in general: transformer oil in pole-mounted units, bushings, conservators and individual barrels of oil.
How dry does the oil come out?
With less than 10 ppm of water measured by Karl Fischer (ASTM D-1533 / D-1744) and less than 0.25 % of total gas content (ASTM D-831 / D-2945).
Does someone need to watch it?
No. The unit is designed for unattended operation, and an optional vacuum controller connected to the provided port automates the cycle.
Can it run on other voltages?
The standard configuration is 230 V, single-phase, 60 Hz; other voltages are available on request.
How is it moved around site?
On its own cart with 250 mm pneumatic tires; the 3 m cord and two 3 m camlock hoses connect it beside the equipment.
