An overview of Doble TOPS. : rs 423-7363 supplier: electrolube. Your email address will not be published. 2. The use of Paraffin oil is more in India because of its availability. : rs 423-7363 supplier: electrolube. known as transformer oil, serves mainly two purposes: as insulation and as a coolant (i.e. Chemical Tests: – neutralization number, saponification value, copper strip corrosion, oxidation stability, inorganic chlorides and sulphates, steam emulsion number. Flashpoint: – The minimum flash point of the oil should be 140-degree centigrade. Transformer oil consists of base oil plus, in some cases, additives (Figure 1). The oil in the transformer can be used without replacement for the entire service life of the transformer. 1.2 Scope. The role of a transformer oil. Viscosity: – The kinetic viscosity of the oil should be under 27 CST at 27-degree centigrade. Transformer Oil Usage precautions Avoid spilling. 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 3.Moisture: A small amount of water which makes something wet or moist is called moisture. Chemical composition of oil is quite complex. Save my name, email, and website in this browser for the next time I comment. There are some different types of transformer insulating oil available in the market. It is used in waterproofing paper, candle, and for coating and seal. Transformer oil aging. Composition of Transformer Oil. But it was the necessity of using some effective insulating medium in the Transformers. 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 Kind Code: A1 . Packaging & Delivery. Transformer oil is used to insulate the electrical power of a transformer and used to stop the direct contact of oxygen in the transformer. Supply Ability. At the very beginning of using transformer oil, the gassing problem of the oil was ignored. These are paraffin, naphthene, and aromatic types of mineral oil. 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. Section 4: First Aid Measures The GlobeCore CMM-R systems are designed to extend transformer service life by restoring the dielectric strength and chemical composition of dielectric insulating oil. There are some different types of transformer insulating oil available in the market. Transformer oil composition, comprising at least one acid interceptor . On the other hand, naphthene based oil has a very low pour point. It is of two types: Paraffin-based transformer oil and Naphtha-based transformer oil. Transformer oil is nothing but the mineral hydrocarbon oil extracted from raw petroleum. Country of Origin: China. Its functions are to insulate, suppress corona discharge and arcing, and to serve as a coolant. DGA was first introduced for transformer oil in the year 1965 in the UK. The oil behaves as the dielectric medium as well as the coolant. Oil density will have a large impact on the operation of your electric power transformers. That is the same for oil. Paper absorbs the maximum amount of water from oil which affects paper insulation property as well as reduced its life. Gas concentrations are in percent by volume. As a result, it obstructs the convectional circulation of oil during cooling. Product name: transformer oil. The only differences are in their molecular structure and molecular weight. Chemical composition of transformer oil. But in 1919 the gassing of the transformer oil during its service was first recognized. Naphtha Oil: Naphtha Oil is a flammable or burnable, liquid hydrocarbon mixture. 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. Transformer oil is the mineral hydrocarbon oil obtained from raw petroleum. Transformer oil can be similar to a window of a house. Transformer oil is used to insulate the electrical power of a transformer and used to stop the direct contact of oxygen in the transformer. The invention further relates to the use of acid interceptor in transformer oils for improving stability. Different electrical and thermal faults occurred in the Transformer form the gases in the oil. Supply Ability: 300 Ton/Tons per Day transformer oil. And for new treated oil that should be a minimum of 60 KV RMS. Moisture is the cause of oxidation stability. The water content in oil also affects the paper insulation of the core and winding of a transformer. 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. A transformer oil comprising a petroleum oil, normally subject to oxidational deterioration resulting in the formation of sludge, having in admixture therewith relatively small amounts of diphenylamine and a secondary or tertiary alkyl60 substituted cresol, the amounts of said last-mentioned agents present being sufficient at least to substantially retard sludge formation. After that, the DGA detects 90% of the internal transformer faults before any major problem occurs in the transformer. To confirm these properties, the tests performed on the transformer oil can also be divided into three different categories. Powerlink Oil Refinery Ltd. All rights reserved. So to analyze the faulty condition of the transformer it became necessary to analyze the dissolved gases in the oil. The cause of neutralization in transformer oil is due to the aging of oxidation. That should be within 2% at 90-degree centigrade for used oil. Typical additives include antioxidants (inhibitors), metal passivators and pour point depressants. These properties are physical, electrical, and chemical properties. Other name: insulating oil. The basic chemical structures of all the oil are more or less the same. Paraffin Oil: Paraffin oil is the mixture of alkane hydrocarbons with boiling point (150-300)degree Celcius in liquid form. The sludge of Paraffin oil does not precipitate at the bottom of the oil tank and disturb the transformer cooling system. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. General Composition: BASE Oil. It is uninhibited electrical insulating oil made up of superior quality base oil for use as an insulating and heat transfer media in electrical. They have been . Your email address will not be published. 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. It is of two types: Paraffin-based transformer oil and Naphtha-based transformer oil. 2015, 16 12874 considered as functional food and used as an important part of a healthy diet. STO-50 Silicone Transformer Oil is formulated exclusively for use as a dielectric fluid and dielectric coolant in high voltage transformers transformers. 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. (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. The performance of the oil is defined by the positive and negative properties of the crude oil. Abstract: The invention relates to a transformer oil composition comprising at least one acid interceptor. Insulating Oils or Transformer Oils are mineral electrical insulating oils processed from fractional distillation and treatment of crude petroleum. the oil. Effects of dissolved gases are partial discharge, low energy discharge, arching, and high temperature. If you stand outside of a house, and look through the window, you can see a glimpse of what may be inside. Functions of a mineral insulating oil; Fulfilling four main functions, insulating liquids are a critical component of power equipment. The basic chemical structures of all the oil are more or less the same. J. Mol. The most popularly used transformer oil is either paraffin or naphthene or aromatic based. Although the oxidation rate of naphthene oil is much more than that of paraffin oil. There are mainly three types of Transformer oil in general use for the purpose. It is used in oil-filled transformers, some types of high voltage capacitors, lamp ballasts, and some types of … 2.Oxidation Stability: Oxidation Stability is the chemical reaction due to the combination of lubricating oil and oxygen. 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. Appearance: – The color of the oil must be clear and transparent. The paraffin and naphthene based oil are mostly used for the purpose. At last, we can conclude that the transformer oil is combined with different types of component. read more... Interstate Supply Company. The only differences are in their molecular structure and molecular weight. 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 Dielectric Strength: – For new untreated oil that should be a minimum 30 KV RMS. Most of the gases are easily dissolved in the oil. 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. Then Buchholz relay came into use. We have considered the eleven most common ones. 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. A good number of these properties are experimented upon by using the breakdown The entry into a transformer of oil of substances, such as oxygen and water, leads to its oxidation in the presence of ideal conditions. 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. The oil used in different pieces of switchgear equipment like circuit breakers, current transformers, potential transformers, etc. Therefore only observing the behavior of the Buchholz relay is not sufficient to judge the healthy condition of a transformer. Transformer Oil is basically an Insulating Oil. Since the formation of different gases due to the deformation of the molecular structure of the transformer oil is quite small. It may also be any substance in the oil that either resists or conducts electricity different - The transformer oil is a combination of mineral oils. The transformer oil performs two very important functions. heat Furthermore, transformer oil prevents direct contact of atmospheric oxygen with cellulose made paper insulation of windings, which is susceptible to oxidation. The composition-dependent electrical conductivity of AlN-transformer oil nanofluid was investigated at different ambient temperatures. Moisture or water content in transformer oil is highly undesirable as it affects the dielectric properties of the oil adversely. 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. 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 creates an acceptable level of insulation in combination with the insulating materials used in the conductors and coils. Because the gases evolved due to falts mostly dissolve in the oil before these reach to the relay. 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. Basically, Transformer oil is needed for performing a couple of important functions. 1. Electrical Tests: – dielectric strength, power factor, resistivity. In India, transformer oil is tested on the basis of IS 335. Pourpoint: – The minimum pour point of the oil should be – 6-degree centigrade. 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 76 Transformer Oil 1. Density: – The density of healthy transformer oil should be 0.89 gram per cubic centimeter at the temperature of 29.5 centigrade. Dielectric Dissipation Factor or Tan Delta Value: – That should be within 0.02% at 90-degree centigrade for new oil. Save my name, email, and website in this browser for the next time I comment. 2) High resistivity leading to better insulation values between windings. Among these two types of oil naphthene based oil is more preferred. In the absence of oxidation stability, metal corrosion will minimize the life of the transformer. Severely hydrotreated oils can serve as base oils, insulating (transformer) oils, or process oils. Naphtha is more soluble than Paraffin oil. Transformer oil or insulating oil is usually a highly-refined MINERAL OIL that is stable at high temperatures and has excellent electrical insulating properties. Meeting Standard: GB2536-2011. Chemical reaction and breathing action are the cause of moisture. The negative particles are affected by the solid particles of the transformer, which dissolve in the oil. There are some essential tests to be performed on an insulating oil before selecting it for the purpose of insulation and coolant. 7.2. The composition of transformer oils, in particular the balance between naphthenic, paraffinic, and aromatic carbon contents, can play an important role in determining the … STO-50 Silicone Transformer Oil is a 100% Polydimethylsiloxane silicone oil (CAS# 63148-62-9) with a viscosity of 50cSt (centistoke) @ 25°C. Paraffin: Paraffin is a colorless, odorless solid substance which can’t soluble in water and does not easily react with any reagent. insulation, dielectric, and oil‐related faults. 2) High resistivity leading to better insulation values between windings. The transformer core is made of cold-rolled grain-oriented steel or in short CRGO. The other crucial thing about this insulation oil is its capacity to not allow … Paper is highly hygroscopic. It can progress the process of resin formation and can increase in tan ẟ. An Insulating Oil must have the following properties: 1) Excellent dielectric properties resulting in minimum power loss. 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 composition wholesale, buy transformer oil composition from 69 transformer oil composition suppliers from China. Sci. The purpose of the Buchholz relay is to collect the gases inside the oil and initiates an alarm or trip of the transformer. This oil is mainly used in hygiene oil, cold cream, perfumes, cosmetic substance, candle, and in medical purpose. Water Content: – The water content of transformer oil should be within 50 PPM. The performance properties of transformer oil depend heavily on the quality and parameters of the raw material. IFT is the surface tension of a sample … Keywords: Baader aging, Hydrogenated transformer oil, Chemical composition, Electrical and physic- chemical properties 1. Do not use oil-contaminated clothing or shoes, and do not put rags moistened with oil into pockets. The results indicate the nonlinear dependences of the electrical conductivity on volumetric fraction and temperature. This is the reason, we need to analyze the dissolved gas in the oil from time to time to monitor the condition of the transformer. 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. TRANSFORMER OIL PURCHASE SPECIFICATION. Mineral oil filled transformers in the early 20 th century were free breathing, which allowed a constant oxygen supply. Insulating oils play an important role in power supply. Because these oils contain polychlorinated biphenyls. But the availability of paraffin oil is quite more than that of naphthene oil. 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. 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)℃. It includes the following components: paraffin (10-15%), … Composition of Transformer Oil. Typical additives include antioxidants (inhibitors), metal passivators and pour point depressants. United States Patent Application 20120043505 . These are carcinogenic and highly biodegradable. Color: transparent Liquid. This oil is used to protect the transformer core section and also the windings where the windings are completely submerged in the oil. Two of these … 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. The sludge of Naphtha oil does not precipitate in the bottom of the transformer and does not disturb the transformer cooling system. Usually the process of oil aging is inextricably linked with its oxidation. Transformer oil is nothing but the mineral hydrocarbon oil extracted from raw petroleum. help dissipates ). An Insulating Oil must have the following properties: 1) Excellent dielectric properties resulting in minimum power loss. 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 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. 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. Therefore it penetrates in the bottom of the transformer. Oil has three different basic properties that identify the suitability of the oil for the purpose of insulation and cooling. Paraffin oil gets less oxidized than Naphtha 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. Insulating oils for general application, which are covered by this specification, are manufactured from predominantly naphthenic base crudes. 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. Under normal conditions, the transformer oil deteriorates very slowly. Paraffin is less soluble than Naphtha oil. The fraction of isolated aromatic hydrocarbon has higher conductivity than the Paraffinic and Naphthenic fraction. Interfacial Tension: – That should be 0.04 Newton per meter at 27-degree centigrade. Advice on general occupational hygiene Do not eat, drink or smoke when using this product. In this mineral Oil, available in market are by the name of POWER OIL, TRANSOL, SAVITHA, APAR, GHANDHAR etc. It is therefore, important to pay close attention to oil density when filling or re-filling your electric power transformers with dielectric insulating oil. Description. The use of Naphtha oil is less than Paraffin oil because it is not easily available in our country. Flash point: 140-150°C . There was no oil used in the earlier Transformers. Thermal degradation arcing and partial discharge are the cause of dissolved gases. On the other hand, the byproduct created during the oxidation of paraffin oil is semisolid. But during faults, due to electrical and thermal tresses, the formations of different gases in the oil get accelerated. Thus the oil may cause health and environmental hazards. There are several properties of transformer oils. COMPOSITION. 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 The need for better dielectrics and transformer oils for insulation is unequivocal. Int. 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. Of water which makes something wet or moist is called moisture oil like Pennsylvania in. Well as cooling for the next time I comment avoid to use them as transformer composition. Healthy transformer oil in general use for the next time I comment )... 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Section and also the windings are completely submerged in the oil are more or the!