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 main problem with this relay is that the gases only accumulate in the relay container when the rate of production of the gases is high enough and when the oil gets saturated with the gases. 1. Product name: transformer oil. The basic chemical structures of all the oil are more or less the same. Naphtha Oil: Naphtha Oil is a flammable or burnable, liquid hydrocarbon mixture. There are some different types of transformer insulating oil available in the market. Flashpoint: – The minimum flash point of the oil should be 140-degree centigrade. Severely hydrotreated oils can serve a variety of purpose: Nytro 4000X is an insulating oil; T110 is a base oil ; Nypar 315 and Nyflex 3150 are process oils; The given samples were provided by courtesy of Nynas AB, Sweden. There are some essential tests to be performed on an insulating oil before selecting it for the purpose of insulation and coolant. Other name: insulating oil. That should be within 2% at 90-degree centigrade for used oil. Dielectric Strength: – For new untreated oil that should be a minimum 30 KV RMS. Transformer oil is nothing but the mineral hydrocarbon oil extracted from raw petroleum. Advice on general occupational hygiene Do not eat, drink or smoke when using this product. An overview of Doble TOPS. Paraffin Oil: Paraffin oil is the mixture of alkane hydrocarbons with boiling point (150-300)degree Celcius in liquid form. Country of Origin: China. Physical Tests: – specific gravity, viscosity, flash point, pour point, color, interfacial tension. The transformer core is made of cold-rolled grain-oriented steel or in short CRGO. Because these oils contain polychlorinated biphenyls. Transformer oil composition, comprising at least one acid interceptor . TRANSFORMER OIL PURCHASE SPECIFICATIONS (Developed Under the Auspices of the Doble Oil Committee) March, 2017 COMPOSITION This specifications covers new insulating oil for general applications for liquid-filled electrical equipment, which are manufactured from mineral crude, which may be either naphthenic, which has a very low naturally The fraction of isolated aromatic hydrocarbon has higher conductivity than the Paraffinic and Naphthenic fraction. 2) High resistivity leading to better insulation values between windings. There are mainly three types of Transformer oil in general use for the purpose. It is uninhibited electrical insulating oil made up of superior quality base oil for use as an insulating and heat transfer media in electrical. The need for better dielectrics and transformer oils for insulation is unequivocal. It is therefore, important to pay close attention to oil density when filling or re-filling your electric power transformers with dielectric insulating oil. Most of the gases are easily dissolved in the oil. But it was the necessity of using some effective insulating medium in the Transformers. TRANSFORMER OIL PURCHASE SPECIFICATION. Oil has three different basic properties that identify the suitability of the oil for the purpose of insulation and cooling. Paper absorbs the maximum amount of water from oil which affects paper insulation property as well as reduced its life. 1.2 Scope. The composition-dependent electrical conductivity of AlN-transformer oil nanofluid was investigated at different ambient temperatures. Chemical composition of transformer oil. These gases are also dissolved in the oil but when there is a sufficient amount of gas formed in the oil it starts accumulated in the Buchholz relay. The base mineral oil and the inhibited transformer oils also contained a suite of steranes, similar in distribution to those in the starting crude oil. Naphtha oil gets more oxidized than Paraffin oil. DGA was first introduced for transformer oil in the year 1965 in the UK. Transformer oil or insulating oil is usually a highly-refined MINERAL OIL that is stable at high temperatures and has excellent electrical insulating properties. Supply Ability. Effects of dissolved gases are partial discharge, low energy discharge, arching, and high temperature. The basic chemical structures of all the oil are more or less the same. Section 4: First Aid Measures Composition of Transformer Oil. United States Patent Application 20120043505 . Color: transparent Liquid. The only differences are in their molecular structure and molecular weight. The most popularly used transformer oil is either paraffin or naphthene or aromatic based. Chemical Tests: – neutralization number, saponification value, copper strip corrosion, oxidation stability, inorganic chlorides and sulphates, steam emulsion number. If you stand outside of a house, and look through the window, you can see a glimpse of what may be inside. But the availability of paraffin oil is quite more than that of naphthene oil. Do not use oil-contaminated clothing or shoes, and do not put rags moistened with oil into pockets. These are carcinogenic and highly biodegradable. Flash point: 140-150°C . Therefore only observing the behavior of the Buchholz relay is not sufficient to judge the healthy condition of a transformer. Transformer oil consists of base oil plus, in some cases, additives (Figure 1). The transformer oil is a combination of mineral oils. Last modified: 2012/06/03 by dmitri_kopeliovich Except where otherwise noted, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License Transformer oil can be similar to a window of a house. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. Typical additives include antioxidants (inhibitors), metal passivators and pour point depressants. Required fields are marked *. Because the byproducts created during oxidation are highly soluble in the naphthene oil. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. 11001 - transformer oil revision date:may 2003 safety data sheet transformer oil 1. identification of the substance/preparation and the company: product name: transformer oil part no. The negative particles are affected by the solid particles of the transformer, which dissolve in the oil. So to analyze the faulty condition of the transformer it became necessary to analyze the dissolved gases in the oil. It is used in oil-filled transformers, some types of high voltage capacitors, lamp ballasts, and some types of … COMPOSITION. Typical additives include antioxidants (inhibitors), metal passivators and pour point depressants. The use of Paraffin oil is more in India because of its availability. The performance properties of transformer oil depend heavily on the quality and parameters of the raw material. The transformer oil performs two very important functions. By contrast, the four samples of paraffinic transformer oils have a very different distribution. In India, transformer oil is tested on the basis of IS 335. Three of four of the samples analyzed contain n-alkanes, alkyl-cyclohexanes and bicyclanes, but no iso-alkanes, steranes or PAH. Transformer oil consists of base oil plus, in some cases, additives (Figure 1). It includes the following components: paraffin (10-15%), … 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. 76 Transformer Oil 1. The other crucial thing about this insulation oil is its capacity to not allow … Two of these … Since the formation of different gases due to the deformation of the molecular structure of the transformer oil is quite small. Water Content: – The water content of transformer oil should be within 50 PPM. Naphtha is more soluble than Paraffin oil. These are paraffin, naphthene, and aromatic types of mineral oil. Hydrocarbon helps to derive or making petroleum for transformer oils and identified by the very low values of tan ẟ at 50 Hz and temperatures from (20-125)℃. While it may be extremely difficult to physically see inside of a metal tank, we can still analyze the oil and paint the picture of the inside. To confirm these properties, the tests performed on the transformer oil can also be divided into three different categories. known as transformer oil, serves mainly two purposes: as insulation and as a coolant (i.e. The role of a transformer oil. It can progress the process of resin formation and can increase in tan ẟ. Thermal degradation arcing and partial discharge are the cause of dissolved gases. Therefore it penetrates in the bottom of the transformer. The transformer oil serves as the insulating as well as the cooling medium of transformers. The technique used to analyze the gases dissolved in oil by gas chromatography is known as Dissolved Gas Analysis (DGA). Electrical Tests: – dielectric strength, power factor, resistivity. A good number of these properties are experimented upon by using the breakdown Sci. has two main purposes. DANA transformer oil complies with important standards like IS 335:1993, IEC 296 Class I & II, IEC 60296, BS148 Grade I & II and also provide excellent insulating properties thanks to a well-optimised composition. Kind Code: A1 . Keywords: Baader aging, Hydrogenated transformer oil, Chemical composition, Electrical and physic- chemical properties 1. The composition of a transformer core depends on such factors as voltage, current, and frequency. Always remove oil with soap and water or skin cleaning agent, never use organic solvents. It is available in different Grades like EHV GR-1, EHV-GR2,depending upon the compositions & values of dielectric strength, flash point, neutrilization values as per IS: 335 239000003921 oils Substances 0.000 title claims description 40 a major amount of a paraffinic oil having a Cleveland open cup flash point of more than about 200°C, and Electrical and transformer oil composition STO-50 Silicone Transformer Oil is formulated exclusively for use as a dielectric fluid and dielectric coolant in high voltage transformers transformers. Transformer oil is nothing but the mineral hydrocarbon oil extracted from raw petroleum. General Composition: BASE Oil. 4.Dissolved Gases: It is the measurement of dissolved gases produced in the oil due to the decomposition of oil. Also during the operating condition of different pieces of electrical equipment in the substation or system, it becomes necessary to perform some tests on the transformer oil extracted as a sample from the equipment. That is the reason, naphthene base oil becomes the only means for the purpose in cold climate countries. The only differences are in their molecular structure and molecular weight. insulation, dielectric, and oil‐related faults. It creates an acceptable level of insulation in combination with the insulating materials used in the conductors and coils. Transformer Oil Usage precautions Avoid spilling. We are offering a wide range of Transformer Oil which is a series of high performance transformer oils specially developed to satisfy different application and various equipment needs. An Insulating Oil must have the following properties: 1) Excellent dielectric properties resulting in minimum power loss. Packaging & Delivery. The oil behaves as the dielectric medium as well as the coolant. The density of transformer oil is one of the most important aspects of its physical characteristics. the oil. Insulating oils for general application, which are covered by this specification, are manufactured from predominantly naphthenic base crudes. 2. Under normal conditions, the transformer oil deteriorates very slowly. 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. Paper is highly hygroscopic. The oil used in different pieces of switchgear equipment like circuit breakers, current transformers, potential transformers, etc. It is obvious that the Buchholz relay actuates only after a sufficient formation of gases in the transformer oil. Transformer oil is nothing but the mineral hydrocarbon oil extracted from raw petroleum. 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. (adsbygoogle = window.adsbygoogle || []).push({}); var _wau = _wau || []; _wau.push(["dynamic", "12vbhgb58f", "wb2", "ffffffc4302b", "big"]); Electrical Transformers with Theory of Transformers, Transformer Oil or Insulating Oil and its Characters, Third Harmonic Currents - Concept of Third Harmonics, Characteristics of DC Shunt Generator (Self Excited), Independent and Dependent Current and Voltage Sources, Freewheeling Diode and its Working Principle, Accessories of Overhead Transmission Line. This oil is used to protect the transformer core section and also the windings where the windings are completely submerged in the oil. Insulating oils play an important role in power supply. Interfacial Tension: – That should be 0.04 Newton per meter at 27-degree centigrade. In the year of 1892, the General Electric Company first used insulating oil like Pennsylvania Paraffinic in the Transformer for the purpose. There are some different types of transformer insulating oil available in the market. Among these two types of oil naphthene based oil is more preferred. Transformer Oil is basically an Insulating Oil. Although the oxidation rate of naphthene oil is much more than that of paraffin oil. Emphasis is placed on describing how differences in crude oil source and refining process can impact the final chemical composition of the oil, and therefore its performance in a transformer. Transformer oil is used to insulate the electrical power of a transformer and used to stop the direct contact of oxygen in the transformer. read more... Interstate Supply Company. 2) High resistivity leading to better insulation values between windings. Appearance: – The color of the oil must be clear and transparent. Your email address will not be published. Sludge Content: – That should be of a maximum of 0.1 percent by weight for new oil and it is 0.5 percent by weight for old and used oil. It may also be any substance in the oil that either resists or conducts electricity different - 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. Chemical reaction and breathing action are the cause of moisture. They have been . After that, the DGA detects 90% of the internal transformer faults before any major problem occurs in the transformer. Also, it preserves the core and coil assembly and creates a barrier between atmospheric oxygen and cellulose and other materials inside the transformer to prevent them from oxidation. Supply Ability: 300 Ton/Tons per Day transformer oil. There was no oil used in the earlier Transformers. At the very beginning of using transformer oil, the gassing problem of the oil was ignored. Insulating Oils or Transformer Oils are mineral electrical insulating oils processed from fractional distillation and treatment of crude petroleum. Meeting Standard: GB2536-2011. Functions of a mineral insulating oil; Fulfilling four main functions, insulating liquids are a critical component of power equipment. 7.2. Some synthetic insulating oils are also available in the market but we generally avoid to use them as transformer oil. In scientific terms, transformer oil is a product of crude oil refining. heat Furthermore, transformer oil prevents direct contact of atmospheric oxygen with cellulose made paper insulation of windings, which is susceptible to oxidation. Packing: 170kg/drum. Basically, Transformer oil is needed for performing a couple of important functions. Then Buchholz relay came into use. The transformer oil is a combination of mineral oils. There are several properties of transformer oils. The basic chemical structures of all the oil are more or less the same. 11001 - transformer oil revision date:may 2003 safety data sheet transformer oil 1. identification of the substance/preparation and the company: product name: transformer oil part no. Resistivity: – The minimum resistivity of new transformer oil should be 35×1012 ohm-cm 90-degree centigrade and the same should be 1500×1012 ohm-cm at 27-degree centigrade. The minimum resistivity of used transformer oil should be 0.2×1012 ohm-cm 90-degree centigrade and the same should be 2.5×1012 ohm-cm at 27-degree centigrade. Transformer oil is used to insulate the electrical power of a transformer and used to stop the direct contact of oxygen in the transformer. 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. Because the gases evolved due to falts mostly dissolve in the oil before these reach to the relay. 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. 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. The pour point of the oil is much higher due to its wax-like content, but still, it does not create any major problem in using it in a country like India because of the warmer climate. There are some different types of transformer insulating oil available in the market. 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. In this mineral Oil, available in market are by the name of POWER OIL, TRANSOL, SAVITHA, APAR, GHANDHAR etc. PRODUCT AND COMPANY IDENTIFICATION Product Name: 76 Transformer Oil Product Code: 1041410 Intended Use: Insulating Oil Synonyms: Conoco Transformer Oil Phillips Transformer Oil Chemical Family: Petroleum Hydrocarbon Responsible Party: Conoco Lubricants A Division of ConocoPhillips 600 N. Dairy Ashford Houston, Texas 77079-1175