Due to these above mentioned negative points attached with mineral oil, its use is highly questionable in many countries. Physical Properties. x��]�v�6�}�W��sf,6/ f��LzV�t�iGY����r,�I�%Ǟ?����T�A�Ȳ�$k��!�k�.� Mineral oil is any of various colorless, odorless, light mixtures of higher alkanes from a mineral source, particularly a distillate of petroleum, as distinct from usually edible vegetable oils.. Constituent Mass (kg/kg oil) chemical properties (aspect, colour, density, water content, acidity, discharge voltage, dissipation factor, viscosity and flash point) of mixtures between a used transformer mineral oil and a new one other of the same nature, and compatibles between them for all ratios. MIDEL 7131. has a high fire point, significantly increasing the fire safety of your transformers and reducing the need for fire protection equipment. The calculations for the mineral oil case are matched with the manufacturing data. Electrical oil service equipment must be available when the product is transferred. Store under recommended endstream
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%�쏢 transformer mineral oil and to estimate its remaining lifetime. Another instance when the sampling point of a transformer can change is after the retrofill of insulating fluid, such as Askarel to Silicone. It is used as insulating oil in transformers because it is stable at high temperatures (Modenes et al., 2018). I guess it's a question of whether you take that over the non-conductivity.) Environmentally safer than mineral oil, MIDEL eN 1215 has a pour point of -18°C and delivers excellent performance in non-free breathing transformers in temperate climates. Mineral-oil based transformer oil is composed of the materials listed in the Table below. Mineral oil transformers with no drain valve are usually accessed and sampled by removing the top cover, for example. Raw Materials. They are applied in transformers as electric insulators and coolants. The amount of oil used in a transformer depends on the size of the transformer. Also, natural ester oil transformer designs are more insulation intensive as the electrical stresses are present in the paper as opposed to mineral oil where the stresses are in the oil. Transformer Oil www.lubes.conoco.com An Inhibited Oil For Transformers And Electric Apparatus. 5.Transportation**) Trucking is the mode of transport used to represent transportation from the transformer oil production plant to Silicon production: 6. Compare the typical characteristics and performance of mineral oil, FR3 ® natural ester fluid, synthetic ester fluid, and silicone transformer oil.. For a more precise estimate tailored to your needs, contact us. <> MIDEL 7131. is readily biodegradable, avoiding environmental damage should leakage occur and enabling reductions in containment measures. The name mineral oil by itself is imprecise, having been used for many specific oils over the past few centuries. Use oil resistant material in construction of handling equipment. Yes. Numerical analysis. A 3D CFD COMSOL model is used to calculate the rated TOT and the rated HST for the mineral oil, Midel 7131, Midel 1204, and Midel 1215. Read more about NYTRO Libra (IEC 60296, ED.
However, the production of mineral oil and rapeseed oil and their use in hydraulic fluid has been studied, as has the environmental impact of transformers. Two of the main characteristics of transformer oil are its viscosity and density. The transformer oil is a combination of mineral oils. Identification of the Substance/Preparation and the Company/Undertaking Product Name: Nytro Libra Product Type: Insulating Oil Supplier: Nynas AB P. O. Transformer oil is used in oil-filled electrical power transformers to insulate , stop arcing and corona discharge , and to dissipate the heat of the transformer (i.e. There are several benefits to conducting periodic analyses of a transformer's insulating fluid. Transformer oil usually contains oxygen in addition to other gases. Usually this parameters is not regulated and is within 0.856 to 0.886.
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C̰!W����q�*'�-�A�[U. Transformer Dielectric Fluid Comparison. Box 10700 S-121 29 STOCKHOLM Sweden E-mail address: ProductHSE@nynas.com Telephone No: +46-8-602 1200 Fax: … In service evaluation of mineral oils is defined by the standard IEC 60422. Figure 1: Mineral Oil-Based Transformer Oil System Boundaries. The density of the oil is assumed to be 0.864 kg/L. LUMINOL TR and TRi contain no corrosive sulphur compounds and do not require passivators. Unlike competitive products formulated with naphthenic mineral oils, LUMINOL TR and TRi use Petro-Canada's ultra-pure severely hydrotreated isoparaffin base oils to deliver worry-free, corrosive sulphur-free performance in your transformer. The leakage of mineral oil transformer can post a serious threat to environment if leakage or spillage. There are some different types of transformer insulating oil available in the market. The liquid functions both as an electrical insulation and as a heat transfer fluid. 5 0 obj containers. Because we offer three different ester fluids, our customers can choose the one that best suits their specific installation and performance criteria. 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 COMSOL is a powerful tool which can be used in a steady state case study or in a transient case study. The fire point of synthetic ester fluid (316°C) is very high compared to mineral oil (170°C). The MIDEL range of ester transformer fluids delivers an array of distinct benefits when used in a power transformer or distribution unit. The big difference is in the density, which is about a factor of 1000 larger for liquids over air at atmospheric pressure. Transformer Oil Description Castrol Insulating Oil is a pure mineral hydrocarbon oil, specially refined and blended from selected crudes. So one US gallon weighs between 6.83Lbs to 7.68 Lbs... An … The choice of a new mineral oil is guided by the IEC 60296 standard. Oil is used to cool the transformer, because it also provides part of the electrical insulationbetween internal live parts, transformer oil must remain stable at high temperatures for an extended period. The use of silicon oil has some better properties like, high flash point (low flammability) but they are very expensive and also non-biodegradable . Then solid materials and oil were put in the ageing test vessel. 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. Transformer oil is nothing but the mineral hydrocarbon oil extracted from raw petroleum. Transformer Oil will be obtained by fractional distillation and subsequent treatment of crude oil. Mineral insulating oil in transformers Abstract: Nearly all load bearing transformers in electric power delivery systems around the world are filled with liquid. Mineral oil is used in a variety of industrial/mechanical capacities as a non-conductive coolant or thermal fluid in electric components as it does not conduct electricity and functions to displace air and water. 2.2 Silicone fluid Silicone based liquids have been used by transformer manufacturers since the end of 1970’s7, as an alternative to the PCB based liquids, mainly for fire safety applications. Keywords: vegetable oil, mineral oil, power transformers, … Mineral Oil: Nytro Libra SAFETY DATA SHEET Issued: March 2003 Manufacturer: Nynas AB Emergency Tel: +46-8-33 70 43 . Chemical name: Mineral oil. The tables for recalculation" standard These precautions are necessary to ensure the transformer oil is protected against moisture and dirt. Developed and formulated to deliver solid resistance to oil degradation, NYTRO Libra provides good oxidation stability thanks to its natural inhibitors. 244 0 obj
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Compare the typical characteristics and performance of mineral oil, FR3 ® natural ester fluid, synthetic ester fluid, and silicone transformer oil.. For a more precise estimate tailored to your needs, contact us. Specific weight of transformer oil is the ratio of its weight at 20ºC to the weight of the same volume of water at 4ºC. MIDEL eN 1215 is a versatile, fire-safe ester transformer fluid made from renewable soybean crops. Mineral oil-filled distribution transformer as one of the main part of electrical supply system (on photo: A distribution transformer serving a hotel in Saigon by Marcelino Cagampang via Flickr) Although the insulating oil is a flammable liquid , the reliability of the oil-immersed transformer has been proven over many years on supply systems where security of supply is of the utmost importance. In world markets, standard density ranges shift with oil density proportions going between (0.84-0.89) × 103 kg/m3. 4. Use. Transformer Oil Mixtures H. Moulai 1, I. Khelfane2, A. Yahiat2 ... chemical properties (aspect, colour, density, water content, acidity, discharge voltage, dissipation factor, viscosity and flash point) of mixtures between a used transformer mineral oil and a new one other of the same nature, and compatibles between them for all ratios. Crude oil or petroleum has always been the primary source of TMO. 76 Transformer Oil 1. The procedure of oil collection at the transformer is called oil sam-pling. 266 0 obj
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Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. The IEEE limits are split into categories for <69kV, 69–230kV and >230kV. The exact density of transformer oil depends upon the manufacturer but, expressed in SI units, is typically a little less than 900 kg/m3 at 20oC. 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 (also known as insulating oil) is a special type of oil which has excellent electrical insulating properties and is stable at high temperatures. 2. biot on July 12, 2011. The only differences are in their molecular structure and molecular weight. Once you decide to dispose of the transformer, you are no longer required to assume that it is a PCB Transformer. Cellulose Density (g/cm3) Thickness (mm) Thermal class (IEC 60076-14) Kraft paper 0.97 – 1.2 0.25 105°C Pressboard 1.2 – 1.35 1 105°C TUP 1.2 – 1.3 0.25 120°C Table 1: Cellulose-based material for ageing tests Mineral oil Density @20°C (g/ml) 2 Viscosity All these compounds are hydrocarbons, so Transformer Oil is is a pure hydrocarbon mineral oil. owner of a transformer manufactured before July 2, 1979, that contains 3 pounds of fluid other than mineral oil at an unknown concentration, while the transformer is in use you must assume it is a PCB Transformer, i.e., that it contains 500 ppm PCBs. 230 0 obj
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It is of two types: Paraffin-based transformer oil and Naphtha-based transformer 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 It is configured as standard based on the density of mineral oil. 5. All three MIDEL fluids are more fire-safe and eco-friendly than conventional transformer oil. %PDF-1.5
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It is … The basic chemical structures of all the oil are more or less the same. The specific density of transformer oil will vary based on the manufacturer and region or location where the oil will be primarily used. 1. MIDEL eN 1215. Relevant identified uses of the substance or mixture and uses advised against Identified uses Oil filled transformers and other electrical equipment Uses advised against No specific uses advised against are identified. Despite the variables that determine the density of the oil, the density number should not exceed 900 kg / m3 at a predetermined temperature of +20°C/+68°F. h�b```f``�``a`�c�e@ ^�rL0x_� �.�����j��� P
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1.1 This specification covers unused mineral insulating oil of petroleum origin for use as an insulating and cooling medium in new and existing power and distribution electrical apparatus, such as transformers, regulators, reactors, circuit breakers, switchgear, and attendant equipment. The oil must be kept clean and dry. �!�pE���^�R��BQ�"@�bDqW�-Q��D�4+��YZsF��VJΝ�Mi|i��~�";r��&;������rWfNj�\f�=����uv�����Jˑeւ�#J8�G�J0|$���.����~[,�yMXvq��F��M��4O8���ᡷ��i��(��A Technical Data* Transformer Oil Type Class I Class II Density… ��vuմ���^�����ݫwO�w���?�}��'������ů�oN͇z7UӰ;��I]M��GWi�3c��N}�����I[�z�����R����K��T���N����vڿ>�U�C��_P���I�������TP�n���IW�u����'��Lݾ�_Y���ɸ��0V�X7:�i��w�e|�c���W��i�1
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�1{4. Natural ester oil has a density and viscosity that is different to mineral oil. This increases the possibilities for a longer transformer life with less maintenance. These have a pronounced affect on the function of the oil. "State system for ensuring the uniformity of measurements for the density of oil. Product name Transformer Oil Product number 7851 Internal identification GHS22014 1.2. 3 pounds of fluid other than mineral oil at an unknown concentration, while the transformer is in use you must assume it is a PCB Transformer, i.e., that it contains 500 ppm PCBs. It has a density of around 0.8–0.87 g/cm 3. act as a coolant). Can the TXplore inspect a transformer that contains PCB contaminated oil? Density of the oil (g cm −3) 0 5 10 15 20 25 30 35 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 Age of the transformer (years) Fig. act as a coolant). ��6�;mO�ᔈ������� Modern power industry requires higher performance dielectric liquids. Mineral insulating oil in transformers Abstract: Nearly all load bearing transformers in electric power delivery systems around the world are filled with liquid. Standard ASTM D3238 defines how to calculate the carbon distribution and ring content of olefin-free petroleum oils from measurement of refractive index, density and molecular weight (by n-d-M method). When theRead More The specific density of transformer oil will vary based on the manufacturer and region or location where the oil will be primarily used. Different elements affecting density included concoction creation of transformer oil, heat, the thermal conductivity of transformer oil, consistency, kinematic and dynamic warm diffusivity. Transformer oil is used to insulate the electrical power of a transformer and used to stop the direct contact of oxygen in the transformer. Optimal kinetic viscosity of the oil at 20 ̊C is about 28-30×10-6 m2/second. As per the manufacturer of the mineral oil-filled transformer, the rated TOT is 79.7 °C and the rated HST is 96.2 °C. transformer. found that the surface charge density located at the oil/ pressboard interface in a time unit increases if the value of the real part of relative permittivity increases, respectively if the oil’s resistivity decreases. Higher viscosity may mean better dielectric strength, but may reduce the ability of the oil to transfer heat and cool the transformer. Mineral oil varies in specific gravity from 0.818 to about 0.920, depending on how refined it is. Recalculation of the density of oil for different temperature and pressure values. Transformer mineral oil (TMO) is a clear liquid with an odour of petroleum. 5) - Standard grade. Transformer Dielectric Fluid Comparison. Formulas are taken from Russia's GOST R 8.610-2004. h�ԙmo�6��S���߇"@�6k��(�l��j��1�li���(��d�NܵC\(��t$��N�\HBI.� Density of Transformer Oil at 29.5oC is 0.89g/cm3. %%EOF
The average density of the fluid is assumed to be 0.9565 kg/L. A significant portion of the Oxygen is from atmosphere entering through the defects. (However, mineral oil has much higher viscosity than water, which I'm not sure is what you want as it suppresses convection. Experimental measurements of oil density versus temperature for the three esters and the mineral oil. 1.3. Table 1: Mineral-Oil Based Transformer Oil Constituents. Despite the variables that determine the density of the oil, the density number should not exceed 900 kg / m3 at a predetermined temperature of +20°C/+68°F. stream Key words: Transformer mineral oil, lifetime, degradation, arrhenius law INTRODUCTION The mineral oil [1-4], with the main roles of insulating and cooling in power transformers, is similar to the blood in human body. Most power transformers are filled with mineral oil refined to achieve the desired electrical and chemical properties. Some transformers, particularly indoor units, are filled with a synthetic fluid, such as silicon, R-temp, or Askarel (PCB fluid). ASTM D2502 describes how to obtain the mean molecular weight from viscosity measurements at 37.78 °C and 98.89 °C (100 °F and 210 °F). Transformer oil (also known as insulating oil) is a special type of oil which has excellent electrical insulating properties and is stable at high temperatures. 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 … endstream
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Keywords: vegetable oil, mineral oil, power transformers, electrical charging tendency, flow electrification phenomenon 1. As the temperature expands, the density of the oil diminishes. TRANSFORMER OIL > IEC - 296 (CLASS - I) We offer Transformer Oil manufactured from imported Base Stocks and possessing following advantageous features to make it suitable for use as an electrical insulating & good heat transfer medium and quenching medium for power and distribution electrical apparatus such as Power Transformers, Capacitors, Switch Gears, Circuit Breakers and allied … found that the surface charge density located at the oil/ pressboard interface in a time unit increases if the value of the real part of relative permittivity increases, respectively if the oil’s resistivity decreases. Transformer oil is used in oil-filled electrical power transformers to insulate , stop arcing and corona discharge , and to dissipate the heat of the transformer (i.e. If the oil is heated, its specific weight decreases, and vise versa when the oil is cold. In order to manufacture the transformers according to the required performance levels (dielectric characteristics, insulation and projected lifetime), specialized constructive changes were calculated and planned in … 0
From these, one can assess the environmental influence of the entire life cycle of mineral and vegetable transformer oils. Online calculator. Adjustments in the buoyancy control system are required for other density liquids. Engineering measures to reduce exposure: Mechanical ventilation and local exhaust will reduce exposure via the air. 1: Density of the oil specimens taken from transformers of various ages Flash point (o C) 20 160 140 120 100 80 60 40 0 Transformer Oil consists of organic compounds namely parraffins, naphthenes, aromatics and olefins. In method of DGA and moisture test, the mineral oil sam-pling must be collected from the transformer with carefully espe-cially bubbles and contaminated during collected. Oil is used to cool the transformer, because it also provides part of the electrical insulationbetween internal live parts, transformer oil must remain stable at high temperatures for an extended period. The liquid functions both as an electrical insulation and as a heat transfer fluid. The TXplore service can be offered for mineral oil, ester fluids and silicone. An American leading oil refinery that manufacture and sells transformer mineral oil. %PDF-1.5 Density of Transformer Oil at 29.5 C is 0.89g/cm3 From Pardeep Chouhan mobile no.09855359916 Sampling elec-trical insulating oil … Insulating oils play an important role in power supply. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. Mineral oil is one of those most important and widely used insulating materials. But, the simulated rated TOT is 80.6 °C and the simulated rated HST is 97 °C. It is an uninhibited transformer oil, optimised for high performance to meet the stringent requirements of the IEC 60296:2003 specification. 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. M��P�[
�%�ý�D�JF�eP�D1&91�JAr�����9Wp NYTRO Libra is an uninhibited transformer oil that conforms to IEC 60296 Edition 5.0. 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. alternative to mineral oil, silicone fluid and dry-type transformers. Short term value: 5 mg/m3. An American leading oil refinery that manufacture and sells transformer mineral oil. That manufacture and sells transformer mineral oil, silicone fluid and dry-type transformers the... Three midel fluids are more or less the same volume of water at 4ºC other density liquids study or a... As an electrical insulation and as a heat transfer fluid Libra Product:... Of synthetic ester fluid ( 316°C ) is very high compared to oil! Of around 0.8–0.87 g/cm 3 viscosity that is different to mineral oil transformers with no drain valve are usually and. 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