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Desludging of transformers requires oil temperature to be above aniline point usually around 80 C. Constant circulation of oil shall be maintained during desludging and oil must be new or regenerated.
the aniline point of mineral oils used in electrical apparatus . At the aniline point, mineral oil becomes an effective solvent for its own decay product including sludge . Through hot oil circulation through the core the sludge and water on the cellulose paper insulation are at the most efficient point for removal
Aniline Point (D611) The aniline point is the temperature at which a mixture of aniline and oil separates. It provides a rough indication of the total aromatic content, and relates to the solvency of the oil for
The CMM series is GlobeCore’s flagship line of transformer oil purification equipment, featuring various models suited for different capacities and applications. CMM-0.6 and CMM-1.0. Application: Ideal for small to medium-sized transformers. Features: Mobile units capable of vacuum dehydration, degassing, and filtration.
There is a limited supply of Virgin Transformer Oil available and the price is sensitive to this fact. The latest quoted price for oil is approximately US$ 2,15 per liter. Flushing Down a dirty transformer reaches only 10 – 15% of the interior surface.
Phillips 66® Transformer Oil is a highly refined electrical insulating oil developed for use in oil-immersed transformers, capacitors, tap changers, and circuit breakers where the equipment manufacturer specifies a Type II inhibited oil meeting ANSI/ASTM D3487-09 requirements.
Transformer Oil is used to both cool the transformer and to insulate internal components. Since it washes every internal component, the oil contains a great amount of diagnostic information. Analysis of this transformer fluid can offer advance warning of emerging conditions such as contamination and ageing.
