Vacuum Oil-Purifiers AEHV

Vacuum Oil-Purifiers AEHV

The most important applications of high vacuum degasifiers are in the field of extra high voltage transmission and in the manufacture of electrical apparatus for it. In addition, the high vacuum process is used in the degasification of cable oils including polybutenes. Outside of the electrical industry, this process is used for dehydration and degasification of oils for radar and electronic equipment, vacuum pump sealing oils, brake fluids, refrigeration oils—including phosphate esters and silicones. Amperis offers the AEHV Vacuum Oil-Purifier series designed for maximum efficiency in your operations…performance tested by experts, requiring minimum maintenance, and providing long, trouble-free service. Backed by the full resources of Amperis’ technical specialists, plus “know-how” and thorough research, your Vacuum Oil-Purifier is unique. Designed for unattended operation and suitable for operation on energized equipment—complete monitoring equipment is also available.

Description of Process:

  • Oil is introduced into the vacuum chamber, where water, dissolved air and gases, and other low-boiling-range volatile contaminants are removed. Special chemically-inert accelerator cartridges in the vacuum chamber are employed to serve the following functions:
    1. First, their in-depth design structure allows free water to be rapidly separated from oil by coalescence even before it reaches the evaporation stage.
    2. Second, millions of glass fibers 3-10 micrometer diameter provide a large total surface area for exposure of the thin oil film to the vacuum.
    3. Third, sharp points of the glass fibers promote fast release of gases and vapors from oil.
    4. Fourth, the elements act as a fine filter removing solid contaminants. The cartridges are easily replaced and disposable.
  • This method is more efficient than previously used spray nozzles and baffles which required several passes to obtain the same degree of degasification.

Performance:

  • The typical performance achieved with the AEHV series is:
    1. Dehydration—at minimum oil temperatures of 27°C the water removal is from 50 ppm to less than 5 ppm.
    2. Degasification—reduce soluble air content from full saturation of approximately 12% to less than 0.25%.
    3. Particulate matter—standard after-filter provides filtration down to 0.5 micron
  • Other contaminants such as products of oil oxidation, thermal degradation, dissolved varnishes, paints and acids can be removed by the addition of optional Fullers Earth filters to the system.

Standard and Special Options for AEHV

 

 

Standard Configuration:

Special Options:

 

Unattended operation

 

Extra heater capacity for faster temperature rise

 

TOLMS (Transformer Oil Level Monitoring System)

 

Oil level controller

 

Outlet heater to assist in maintaining transformer temperature

 

Reverse flow changeover valves

 

Foam controller

 

 

Mini-dehydrator for vacuum pump oil conditioning

 

TEFC motors

 

Diesel or gas boiler to minimise power consumption

 

Hose storage reels

 

Mechanical seal oil pumps

 

Onboard power generator

 

Power cable storage reel

 

Low watt density heaters

 

Onboard Fullers Earth system (E575A series)

 

Multi-voltage power input

 

IP52 central control panel

 

Inline dielectric strength tester

 

Interstage condenser

 

Welded steel piping

 

Inline RGA

 

Refrigerated cold trap

 

Exclusive processing chamber

 

Fully air-conditioned operators cabin

 

Full aluminium trailer, from tagalong up to 16m semi-trailer

 

PLC control

 

Remote monitoring

 

Soft-side tarpaulin tagalong trailer

 

0.5 micron after-filter

 

Wireless emergency dialout

 

EEx or NEMA 7 explosion-proof

 

 

 

Touchscreen MMI

 

Full stainless steel option

 

 

 

 

 

 

Vacuum Oil-Purifiers AEHV transportVacuum Oil-Purifiers AEHV in transportModel Nomenclature Chart for AEHV

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