transformer oil composition

Typical additives include antioxidants (inhibitors), metal passivators and pour point depressants. An Insulating Oil must have the following properties: 1) Excellent dielectric properties resulting in minimum power loss. Always remove oil with soap and water or skin cleaning agent, never use organic solvents. The transformer oil is a combination of mineral oils. Gas concentrations are in percent by volume. insulation, dielectric, and oil‐related faults. It includes the following components: paraffin (10-15%), … Insulating oils for general application, which are covered by this specification, are manufactured from predominantly naphthenic base crudes. Flashpoint: – The minimum flash point of the oil should be 140-degree centigrade. The GlobeCore CMM-R systems are designed to extend transformer service life by restoring the dielectric strength and chemical composition of dielectric insulating oil. 1. The basic chemical structures of all the oil are more or less the same. The transformer oil serves as the insulating as well as the cooling medium of transformers. The sludge of Naphtha oil does not precipitate in the bottom of the transformer and does not disturb the transformer cooling system. The results indicate the nonlinear dependences of the electrical conductivity on volumetric fraction and temperature. Description. The water content in oil also affects the paper insulation of the core and winding of a transformer. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. Since the formation of different gases due to the deformation of the molecular structure of the transformer oil is quite small. It is used in oil-filled transformers, some types of high-voltage capacitors, fluorescent lamp ballasts, and some types of high-voltage switches and circuit breakers.Its functions are to insulate, suppress corona discharge and arcing, and to serve as a coolant. Transformer Oil is basically an Insulating Oil. 1.Neutralization Number: Neutralization number is the number of a milligram of Potassium hydroxide to neutralize completely acids present in 1 gm of the insulating oil. 76 Transformer Oil 1. Introduction As one of the most important insulating medium, transformer oil undertakes as insulation, cooling, extinguish- ing arc and information carrier in high voltage electrical equipment, especially in the power transformer. The basic chemical structures of all the oil are more or less the same. The paraffin and naphthene based oil are mostly used for the purpose. Neutralization Value: – The acidity of the oil is measured by its neutralization value and its maximum value is 0.03 milligram of KOH per gram of oil for new oil and it is 0.05 milligram of KOH per gram of oil for used oil. Therefore only observing the behavior of the Buchholz relay is not sufficient to judge the healthy condition of a transformer. Electrical Tests: – dielectric strength, power factor, resistivity. Color: transparent Liquid. Transformer oil is nothing but the mineral hydrocarbon oil extracted from raw petroleum. Paraffin Oil: Paraffin oil is the mixture of alkane hydrocarbons with boiling point (150-300)degree Celcius in liquid form. The oil used in different pieces of switchgear equipment like circuit breakers, current transformers, potential transformers, etc. Transformer Oil is basically an Insulating Oil. Do not use oil-contaminated clothing or shoes, and do not put rags moistened with oil into pockets. Transformer oil is considered as the insulation oil where it holds good insulation properties and even stables when the devices are operated at a high range of temperatures. The composition of transformer oils, in particular the balance between naphthenic, paraffinic, and aromatic carbon contents, can play an important role in determining the … The only differences are in their molecular structure and molecular weight. It is used in waterproofing paper, candle, and for coating and seal. the oil. Naphtha Oil: Naphtha Oil is a flammable or burnable, liquid hydrocarbon mixture. The transformer core is made of cold-rolled grain-oriented steel or in short CRGO. The performance properties of transformer oil depend heavily on the quality and parameters of the raw material. Effects of dissolved gases are partial discharge, low energy discharge, arching, and high temperature. Transformer oil is generally a hydrocarbon and thus hydrophobic; how - ever, when the sample undergoes oxidative degradation, oxygenated species such as carboxylic acids are formed, which are hydrophilic in nature. A good number of these properties are experimented upon by using the breakdown Thermal degradation arcing and partial discharge are the cause of dissolved gases. Paraffin is less soluble than Naphtha oil. The transformer oil performs two very important functions. By contrast, the four samples of paraffinic transformer oils have a very different distribution. Supply Ability: 300 Ton/Tons per Day transformer oil. Naphtha oil gets more oxidized than Paraffin oil. There are some essential tests to be performed on an insulating oil before selecting it for the purpose of insulation and coolant. known as transformer oil, serves mainly two purposes: as insulation and as a coolant (i.e. These properties are physical, electrical, and chemical properties. Chemical composition of transformer oil. It creates an acceptable level of insulation in combination with the insulating materials used in the conductors and coils. Other name: insulating oil. It is of two types: Paraffin-based transformer oil and Naphtha-based transformer oil. On the other hand, naphthene based oil has a very low pour point. But in 1919 the gassing of the transformer oil during its service was first recognized. In a transformer, a high PF is an indication of significant power loss in the transformer oil, usually as a result of contaminants such as water, oxidised oil and cellulose paper degradation. It may also be any substance in the oil that either resists or conducts electricity different - The technique used to analyze the gases dissolved in oil by gas chromatography is known as Dissolved Gas Analysis (DGA). Oxidation of transformer mineral insulating oils occurs over time, at a rate that is dependent on the composition of the fluid and the conditions to which it is exposed while in service, such as temperature, oxygen and catalysts. Available in our country oxidation stability, metal passivators and pour point, pour point of the for. 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