CMM-R Oil Regeneration Systems
The GlobeCore regeneration1Oil regeneration – is extraction of contaminants from oil in order to restore its original properties to be used equally with fresh oils. process restores used oils to new like condition. This process makes it possible to fill transformers2The term “transformer oil filling” has two meanings. The first is the process that compensates for the loss of oil in the course of transformer operation. The second is filling a transformer with oil before commissioning or after an overhaul. with oil that would previously have required disposal. The oil in the transformer3A transformer is a static electrical device that transfers electrical energy between two or more circuits. can be used without replacement for the entire service life of the transformer.
The GlobeCore CMM-R systems are designed to extend transformer service life by restoring the dielectric strength4The term dielectric strength has the following meanings: 1) Of a pure insulating material, the maximum electric field that the material can withstand under ideal conditions without breaking down (i.e. without failure of its insulating properties). 2) For a specific configuration of dielectric material and electrodes, the minimum applied electric field (i.e. the applied voltage divided by electrode separation distance) that results in breakdown. This is the concept of breakdown voltage. and chemical composition of dielectric insulating oil5Insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties..
In the process of oil regeneration, oil degradation products and acidic compounds are removed, the oil becomes clear, oxidation resistance is improved, while gas solubility is reduced.
Regeneration of the oil in a transformer restores used oil to new like condition:
|Parameter</strong||Before processing</strong||After processing|
|Moisture content by weight,g/t (ppm) as per IEC 733; ASTM D-1533||43||5|
|ISO 4406 industrial purity class||-/18/16||-/14/12|
|Volumetric gas content % I.A.W.IEC 60599; ASTM D-3612||–||0.1|
|Acid number, mg KOH/g I.A.W IEC 296; ASTM D-664||0.2||0.01|
|Corrosive sulfur I.A.W.*IEC 5662; ASTM D-1275||present||absent|
|Dielectric strength, kV I.A.W. IEC 156; ASTM D-18116||30||70|
|Interfacial tension, N/m, at 25ºС I.A.W. IEC 6295; ASTM D-664||–||45|
|Dissipation factor at 90ºС I.A.W.IEC 247; ASTM D-924||0.095||0.001|
|Oxidation stability I.A.W. IEC 74; 164 hours||–||restored|
(*I.A.W. In Accordance With)
GlobeCore manufactures oil regeneration systems for both transformer manufacturers and for transformer service providers.
GlobeCore units are loaded with a sorbent that captures all oil decomposition products.
GlobeCore regeneration systems can use the same sorbent for up to 3 years before the first replacement. No more need for consumables and costly labor related to replacement of exhausted sorbent on the job site.
Regeneration systems can be combined with degassing units or can be purchased as stand-alone systems.
GlobeCore regeneration systems can be used in combination with your existing degassing or drying unit.
Each GlobeCore unit can be customized and includes a number of options:
- An extra vacuum pump assembly for transformer vacuuming
- Mounted on a trailer or a semi-trailer
- Inlet and/or outlet moisture meters for the oil stream
- Remote control and process monitoring via smartphone or PC
- Climate Controlled Operator work room.