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But adding 20% Ester oil does not affect the margin of viscosity index of the mineral oil. 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. It should be low but also not water-like. 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. The transformer oil is a mineral oil which get from natural petroleum by distilling and refining. fraction) is acceptable. ⇒ 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 ? NEW INSULATING OIL / TRANSFORMER OIL. The oil sample with 0.01% graphene nanoparticles has an increase of 4.49% of viscosity compared to that of transformer oil. There are some different types of transformer insulating oil available in the market. Transformer oil needs to be tested to ensure that it works for today's standards. Vacuum Transformer Oil Purifier Changes Black Oil To New Oil. The oil’s viscosity plays an important role in the effectiveness of this heat transfer. Optimal kinetic viscosity of the oil at 20 ̊C is about 28-30×10-6 m2/second. Specific requirements can be custom-made on request. 2. Kinematic viscosity for most oils at +20°C/+68°F is 28-30 × 10-6 m2 / s . It is an uninhibited transformer oil, optimised for high performance to meet the stringent requirements of the IEC 60296:2003 specification. 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. water 10cSt. In addition, it is suitable for processing low viscosity lubricants. Transformer Oil Testing. The stability study of thermal aging is an essential tool to estimate the lifetime of insulating oil and therefore for the transformer. In case of transformer oil, viscosity is connected to its cooling ability. Transformer oil Treatment. 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. About 44% of these are testing equipment. Viscosity is a parameter which allows to access performance of many materials. Alibaba.com offers 147 transformer oil viscometer products. If its viscosity is low, its performance will be better. Two of the main characteristics of transformer oil are its viscosity and density. 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. 76 Transformer Oil 1. … There are different configurations of units, that operate with transformer oil. Transformer Oil Testing. Every liquid becomes more viscous if the temperature decreases. The above data is indicative of recent average values only. A wide variety of transformer oil viscometer options are available to you, such as paid samples. 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. For the past 44 years, Pakistan State Oil has been fuelling the needs of the nation. The transformer oil purifier is specially used for purifying brand oil, high voltage insulating oil and ultra-high voltage transformer. Silicone fluid, on the other hand, displays very little “stray gassing”. Transformer oil needs to be tested to ensure that it works for today’s standards. 4. Minor variations which do not affect product performance or quality may be expected in manufacture. 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. Higher viscosity may mean better dielectric strength, but may reduce the ability of the oil to transfer heat and cool the transformer. According to the accepted classification, there are dynamic, kinetic and relative viscosity. This filter has economic advantages. Use of Oil. GlobeCore company has invented the equipment for transformer oil treatment. There is another key point to use transformer oil in a power transformer. Despite even higher viscosity, this fluid type produces only hydrogen when “stray gassing” and only from 180°C up to 220°C. 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. For any oil used under changing temperature conditions, it is important to know the change of viscosity in relation to the change of temperature. TEST DESCRIPTION TEST METHOD SPECIFICATION LIMITS TYPICAL VALUES; Our product conforms to IEC 60296:2003/BS-148:1998 Note: 1. 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. Pour Point: The temperature at which transformer oil will just flow under the prescribed conditions is known as the pour point. Kinetic viscosity isRead More All viscosity of transformer oil wholesalers & viscosity of transformer oil manufacturers come from members. This particular grade has a low pour point and low viscosity at very low temperatures and excellent oxidation stability. 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 has to be tested to make sure that the performance and efficiency of the transformer are good. 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. Introduction-Transformer oil Transformer oil (Or Dielectric oil) is electrically insulating oil that has the tendency of remaining stable even at elevated temperatures. Transformer oil is nothing but the mineral hydrocarbon oil extracted from raw petroleum. 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. 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 Testing . 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 … Flash point of transformer oil is the temperature at which oil gives enough vapors to produce a flammable mixture with air. 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 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. 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. Using transformer oil with a water content of 0.0025% (wt. We doesn't provide viscosity of transformer oil products or service, please contact them directly and verify their companies info carefully. 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