The viscosity of lube oil does not give any relevant information unless the temperature, at which it was measured, is known. This paper presents the experimental results of physicochemical properties studies of mixtures based on mineral oil carried out in the laboratory, under thermal stress at fixed temperature with different intervals for long period. The lubricating oil fraction in petroleum is treated by acid-base refining to obtain a mixture of liquid natural hydrocarbons which are pure and stable with small viscosity, good insulation and good cooling property. According to the available data the heat generated in transformer in full load situation is 1000 W from each coil and 500 W from core. Different transformer oil treatments can solve range of problems. mər ‚ȯil] (materials) A high-quality insulating oil in which windings of large power transformers are sometimes immersed to provide high dielectric strength, high insulation resistance, high flash point, freedom from moisture, and freedom from oxidization. The above data is indicative of recent average values only. Transformer Oil Testing . Two of the main characteristics of transformer oil are its viscosity and density. Transformer Oil Description Castrol Insulating Oil is a pure mineral hydrocarbon oil, specially refined and blended from selected crudes. Alibaba.com offers 147 transformer oil viscometer products. With the decrease in the temperature of the oil viscosity increases, so it is necessary for transformer oil to have low viscosity at low temperatures. Transformer Oil also acts as insulation so that it could protect winding from direct contact with the oxygen and stop any kind of oxidation reaction. If the transformer design is fixed, and if it is a transformer with natural oil flow (thermosyphon circulation without pump) and natural air circulation without fans (by IEC terms this is called ONAN Oil Natural Air Natural [1]), then it is mainly the physical properties of the insulating oil that plays the most important role. 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 Customer Service: 800 … In case of transformer oil, viscosity is connected to its cooling ability. The higher stray gassing tendency for FR3, a natural ester, has tentatively been related to the higher viscosity and/or additives in the oil. Transformer Oil Testing. It absorbs the excess amount of heat when the transformer is operational and keeps the transformer cool from inside. … Optimal kinetic viscosity of the oil at 20 ̊C is about 28-30×10-6 m2/second. 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 We doesn't provide viscosity of transformer oil products or service, please contact them directly and verify their companies info carefully. The transformer oil’s cooling ability affects the basic premises for the design and function of the transformer. Viscosity Train oil 20°C 100 mPas Transformer oil 20°C 30 mPas Transformer oil 10°C 75 mPas Treacle 65°Bx 20°C 120 mPas Treacle 70°Bx 20°C 400 mPas Turbine oil 20°C 200-1.100 mPas Vitamine oil 10°C 4.500 mPas Water varnish 20°C 900 mPas Whey 40°C 800-1.500 mPas Yoghourt 40°C 150 mPas °Bx = °Brix °Bé = °Baumé 4 of 4. Viscosity is a parameter which allows to access performance of many materials. Transformer oil needs to be tested to ensure that it works for today's standards. In addition, it is suitable for processing low viscosity lubricants. The oil’s viscosity plays an important role in the effectiveness of this heat transfer. The low viscosity of transformer oil is essential, but it is equally important that the viscosity of oil should increase as little as possible with a decrease in temperature. So Viscosity of the transformer oil should be very less. Specific requirements can be custom-made on request. For any oil used under changing temperature conditions, it is important to know the change of viscosity in relation to the change of temperature. Higher viscosity may mean better dielectric strength, but may reduce the ability of the oil to transfer heat and cool the transformer. Flash point of transformer oil is the temperature at which oil gives enough vapors to produce a flammable mixture with air. A good oil used in transformers should possess minimal viscosity because it provides reduced resistance to the oil flow so that it will impact the transformer’s cooling process. Low voltage winding High voltage winding Primary winding Secondary winding ⇒ A transformer cannot raise or lower the voltage of a D.C. supply because there is no need to change the D.C. voltage There is another key point to use transformer oil in a power transformer. viscosity – a parameter, that is important for heat transfer possibility. The transformer oil is a mineral oil which get from natural petroleum by distilling and refining. Transformer oil has to be tested to make sure that the performance and efficiency of the transformer are good. There are different configurations of units, that operate with transformer oil. Ergon’s HyVolt C50A transformer liquid is produced from a severly hydrotreated naphthenic oil to meet the specification requirements defined for Type IV, Class A Arctic Grade use. Use of Oil. fraction) is acceptable. Acknowledged as the leading Public Sector Company of Pakistan, PSO has been driving the wheels of the national economy and is the first public company to pass the 1 Trillion rupee revenue mark. viscosity of transformer oil. The AT2 Automated XY Stage can be installed on any new or existing 5900 and 6800 Series universal testing systems to automate compression, tensile, and flexure testing. ⇒ The dielectric strength of transformer oil is expected to be 1 kV 33 kV 100 kV 330 kV ⇒ Which winding in a transformer has more number of turns ? But adding 20% Ester oil does not affect the margin of viscosity index of the mineral oil. NEW INSULATING OIL / TRANSFORMER OIL. Every liquid becomes more viscous if the temperature decreases. Kinematic viscosity for most oils at +20°C/+68°F is 28-30 × 10-6 m2 / s . According to the accepted classification, there are dynamic, kinetic and relative viscosity. Every liquid becomes more viscous if the temperature decreases. The oil sample with 0.01% graphene nanoparticles has an increase of 4.49% of viscosity compared to that of transformer oil. Transformer Oil Testing. It is an uninhibited transformer oil, optimised for high performance to meet the stringent requirements of the IEC 60296:2003 specification. Transformer oil with low viscosity is preferred as it exhibits less resistance to the conventional flow and hence does not affect the cooling of th e transformer. Using transformer oil with a water content of 0.0025% (wt. Transformer oil Treatment. Minor variations which do not affect product performance or quality may be expected in manufacture. Rechercher des fabricants et fournisseurs des Viscosité De L'huile De Transformateur produits de Viscosité De L'huile De Transformateur qualité supérieure Viscosité De L'huile De Transformateur et à bon prix sur Alibaba.com Kinetic viscosity isRead More The transformer oil play two important roles, as a cooling medium transmit the heat generated in coils and core into outer walls to dissipate it and as an electric insulator. Low viscosity of transformer oil is essential, but it is equally important that the viscosity of oil should increase as less as possible with a decrease in temperature. Introduction-Transformer oil Transformer oil (Or Dielectric oil) is electrically insulating oil that has the tendency of remaining stable even at elevated temperatures. Dynamic viscosity is measured in Pascal=seconds and is determined based on Stokes law or Poiseuille law. Transformer oil consists of base oil plus, in some cases, additives (Figure 1). water 10cSt. The basic chemical structures of all the oil are more or less the same. They are used in a variety of heavy-duty electric machinery including oil-filled transformers, some type of high voltage capacitors, fluorescent lamps ballasts. Transformer, Oil, Insulating manufacturer / supplier in China, offering Naphthenic Antioxidant Transformer Insulating Oil I-30/45#, High Quality Cheap 16 Inch Pink/Purple/Blue Girls Road Bike, 26 Inch 21 Speed Electric Lithium Battery Adult Speed Mountain Bike and so on. Despite even higher viscosity, this fluid type produces only hydrogen when “stray gassing” and only from 180°C up to 220°C. This filter has economic advantages. All viscosity of transformer oil wholesalers & viscosity of transformer oil manufacturers come from members. If its viscosity is low, its performance will be better. Mineral oil is the one which perfectly suits for heat transfer aspect of transformer at normal operating temperatures as it has high viscosity gradient whereas silicon oil has proved to be ineffective for the dissipation of heat. 2. This is due to higher Van der Waals force existing between the nanoparticles and the transformer oil and thus preventing the molecular movement of the oil. Title: Methoxyethane, Physical properties, safety, … This particular grade has a low pour point and low viscosity at very low temperatures and excellent oxidation stability. Vacuum Transformer Oil Purifier Changes Black Oil To New Oil. Transformer oil is nothing but the mineral hydrocarbon oil extracted from raw petroleum. Temperature is the most influential parameter for the viscosity change of oil. Transformer oil needs to be tested to ensure that it works for today’s standards. Silicone fluid, on the other hand, displays very little “stray gassing”. 76 Transformer Oil 1. Pour Point: The temperature at which transformer oil will just flow under the prescribed conditions is known as the pour point. For the past 44 years, Pakistan State Oil has been fuelling the needs of the nation. The stability study of thermal aging is an essential tool to estimate the lifetime of insulating oil and therefore for the transformer. TEST DESCRIPTION TEST METHOD SPECIFICATION LIMITS TYPICAL VALUES; Our product conforms to IEC 60296:2003/BS-148:1998 Note: 1. A wide variety of transformer oil viscometer options are available to you, such as paid samples. The lower the viscosity, the easier the oil can be pumped or can circulate freely throughout the transformer for improved heat transfer and better cooling. About 44% of these are testing equipment. An effective transformer oil must retain a low viscosity so that it proposes comparably a small resistance opposing the customary flow and allows the proper functions like transferring the heat produced in the transformer. GlobeCore company has invented the equipment for transformer oil treatment. It should be low but also not water-like. These have a pronounced affect on the function of the oil. The transformer oil purifier is specially used for purifying brand oil, high voltage insulating oil and ultra-high voltage transformer. It is also proposed that the viscosity index of the transformer oil should be less and it should vary gradually when the temperature of the oil decreases. The only differences are in their molecular structure and molecular weight. 4. There are some different types of transformer insulating oil available in the market. One of the key roles of the oil, apart from electrical insulation and protecting the transformer's copper wires from oxidation, is to convey heat out of the transformer. Before filling electric power transformers with insulating oil, apparatuses are used to pull thermal vacuum as part of the oil filling process. 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