thread238-5777 On Line Transformer Oil reclamation
thread238-5777 On Line Transformer Oil reclamation
(OP)
Velcon Systems too supplied on line transformer dry out system with patented filtration product. But the product is recommended for removal of dissolve water and different filter element is recommended for cost effective removal of free water. When analysing oil for moisture content (say using Domino Doble)the measurement is for total water content. Can we distinguish the two separate measurements. Has anyone have the experience with Velcon system?






RE: thread238-5777 On Line Transformer Oil reclamation
RE: thread238-5777 On Line Transformer Oil reclamation
RE: thread238-5777 On Line Transformer Oil reclamation
If you doubt the trf is wet,best way is to get an ample sized( 3000litres/hour),good condition oil filter machine with heaters and vaccum chamber.Drain bottom oil 300-400mm from bottom tank.This will be full of free or colloidal water.Dehydrate this drained oil separately and fill back.Do hot oil circulation for 5-10 passes of oil in transformer.Oil temperature in tank shall be above 60C.This will be much faster and cost effective dry out than the small on-line filters.
If trf too wet,there are still ingenious methods to dry out trf.