Regularly performing a range of standard electrical tests has proven an effective way to gain a reliable insight into the operating condition of your transformers and can extend their lifespan. Mechanical changes to windings, contact problems in the tap changer or at other connections, shorted windi

 Recently I got a rare but interesting question from a client, who asked if oil might be filtered too much and therefore get over-purified?The answer, however, is not a simple yes or no. Although cleaner oil does reduces equipment wear and improve machinery reliability, sparing no efforts for unnece

A vacuum filtration is usually faster than a simple gravity filtration using a simple conical funnel. However, there are several points that have to be considered when performing a vacuum filtration. Due to the fact that reduced pressure is used in this procedure, special attention has to be paid to

Used transformer oil solutions:Used insulating oil, old transformer oil and aging insulation oil is generally mixed with gas, water and particles, and other contaminants. The content of the contaminants generally increases with time. In the oil treatment by our oil purification plants, these associa

States of CoexistenceNext to particlates contamination,moisture is the second-most-destructive contaminant found in machinery.Water can exist in oil in the following three states:DissolvedContrary to what I was taught, oil and water do blend. The amount of water dissolving into the oil depends upon

IntroductionTransformer is the inseparable part of a power system. Proper functioning of transmission and distribution cannot be possible without the transformer. For the stable and proper operation of the power system transformer should be available.Power Transformer was invented towards the end of