Particle Count and Patch Test
July 7, 2017 4:28 pm Leave your thoughtsFluid cleanliness is particularly critical for hydraulic and turbine oils. High levels of particulates, especially if the particles are abrasive
Author Archives for Dzmitry Korachkin
Grease Sample Preparation
May 26, 2017 4:32 pm Leave your thoughtsGrease analysis starts with sample preparation. Once all the sample identity details are recorded the sample is mixed thoroughly and a
Transformer Metals in Oil
May 25, 2017 4:12 pm Leave your thoughtsElemental data helps to pinpoint the origins of faults for example iron and copper can be indicative of arcing between
Transformer FFA (Furfuraldehyde)
May 25, 2017 4:12 pm Leave your thoughtsThis is a measure of the degradation of cellulose paper in the windings i.e. as the paper ages its degree
Transformer Dissolved Gas Analysis (DGA) and Buchholz gas analysis
May 25, 2017 4:11 pm Leave your thoughtsThis is the single most important test performed on transformer oil and is used to determine the concentration of certain
Transformer Polychlorinated Biphenyls (PCBs)
May 25, 2017 4:07 pm Leave your thoughtsPCBs are insulating liquids used for their non-flammable properties, mainly in transformers, whether a fire would be unacceptable and as
Transformer Fibres
May 25, 2017 4:06 pm Leave your thoughtsUnder high electric fields the behaviour of fibres can cause a dramatic reduction of insulating qualities of oil. Although invisible
Transformer Colour
May 25, 2017 4:06 pm Leave your thoughtsAn indication of level of oxidation and degradation of oil.
Transformer Electric Strength
May 25, 2017 4:06 pm Leave your thoughtsLow electric strength indicates oil is no longer capable of performing the vital function of insulating under high electrical fields.
Transformer Water Content
May 25, 2017 4:05 pm Leave your thoughtsHigh water content will reduce the insulating properties of the oil, which may result in dielectric breakdown. It can cause
Transformer Acidity
May 25, 2017 4:04 pm Leave your thoughtsHigh acidity can result in corrosion and varnish deposits, together with degradation of oil and paper in the windings. Consequently,
Base Number
May 25, 2017 3:22 pm Leave your thoughtsThe build-up in acidity can be a problem in certain lubricants (mainly crankcase and engine applications due to combustion products
Water Content
May 25, 2017 10:06 am Leave your thoughtsExcess water in the oil reduces the lubricating effectiveness by disrupting the oil film, accelerates corrosion (i.e. rusting of iron