0000113952 00000 n Specific Gravity - Direct ratio of any liquid's weight to the weight of water at 62 degrees F. Water at 62 degrees F weighs 8.33 pounds per gallon and is designated 1.0 sp. If the oil has a specific gravity >1, this means the oil will settle to the bottom and any water or moisture will sit on top. You need to verify that the transformer is not under a vacuum and/or has positive pressure on the pressure gauge. 14 0 obj << /Linearized 1 /O 18 /H [ 2250 289 ] /L 121007 /E 114356 /N 3 /T 120609 >> endobj xref 14 73 0000000016 00000 n 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. +o�@�N�Y���Y��f�7��O��ӳ�Tٸ\4��}ΧMknq�"��83?Ag%�>�jh�P ���D(�X��e�j���am(��< Ɍ9�fřn5�@!�I�p�(�*,B����i&6�L\�P�Vcb���&c@D6�j=T(y��`\��]n�E����&��@[TD�����4-����W/c�Q�4I��^�+���Є�*f��yE�֕�@?#�{qC|�_�s����vWh�t��q�3{=Vk!����i�� ��/BU��N��_�3(:r'��LQ�'n�����������8�-�33G�_W�{�Nց���2>�K�c��BfY=��ɠz�5��qK�3�Bz�]T��'jʆҳJ��|B�O�Ҍ�����N�% �~�W�5��e��q���!�Va ЙI!��_�Q�{���;����PˆW.����h�K5���(��iN ��V�㷦n�m*�s�k���;�V�!%?��i8%;�1��I���O�VI)F��E�z((8e�j���xk�Ã����ý���+��{���0�&ba�mxO�Ä��b4�v80#����GK���We����j*ߐ���V|������K]0����C�X��d��&��-��pR~���ff�AR����y��ۧ #�{�M��6 ��F�{4�{1z�b�t��㈈2��ϘA�a{�C�������q|��(��T�l���X/UM��n7�$RH�nl��vW.3�a,�j��d�+� �E������?�)����V�Z8e��_�Cq� 3�'�M��[qAwp�IB����U�� �r3��wG�J��[y���˭����Gɇ���4� ��ɽ��k�/k�M2:Id�Y�J����� _=Q�CV:��W���r��NN�>����ڙBUtK�5xt�\b)�Z}��J�/Q_��\�4G��M���9)EPw��e(8���\jOӶ���58zL�B�si��m>��C=��AQ=s��H� �B��B9������d�SHp/5vQ�.��./ܱ�b��#~'@l�ƁJ4�^���(�c�^���{�-� >�q����h2��YLͲ7w�M$3����,#Pv �$�V\f*��`�^��>��:��o��!p*��c t�&A9UrV� ��m�sGL�̛9d��ޗ��C@�*w�ZM�vRxΊ���v��L��A`���f�#b�]M�)Î�}٘�ҥ�c����# F1/a The dielectric strength of transformer oil is also known as the breakdown voltage (BDV) of transformer oil. A high specific gravity indicates the oil’s ability to suspend water. gr. The most common oils include sunflower, safflower, and soybean oil. 0000069534 00000 n This is a test of a physical property that relates to the oil’s composition and function. Taking a bad oil sample is a very easy task. This is a test of a physical property that relates to the oil’s composition and function. Does torque matter? - Transformer oil of … Flash point is one of the driving factors of which type of oil is to be used. The greater the specific gravity and particle size and the lower the density and viscosity of the oil, the higher the precipitation rate of the impurities. 0000047988 00000 n Does the oil have a specific gravity >1 or <1. Density, Relative Density (Specific Gravity) or API Gravity of Crude Petroleum and Liquid Petroleum by Hydrometer Method. Univolt™ N 61B is a good quality, fully inhibited transformer oil designed to meet the operating requirements of transformers and other oil filled electrical equipment. 0000062347 00000 n 0000057977 00000 n Water in insulating liquids: ASTM D 1533. This is 100% edible and meets the U.S. Environmental Protection Agency (EPA) criteria for “Ultimate Biodegradability” classification. cv�P,�2$����� q�� �[�A��J�H�6�L?����(-�.,ū�-�'��hzj�$J�rv�ȩ1�/�gك����YY�&�ɒ���R���;I�Q�� 1lVl-e����9�xA(�m[���n�'�����J�t�\pr�nv��qP�a�t��l‡�jnRʠ�o7����`��fkE^q}�0|�����K�v�4����ms��TO Yh�Vտ^8Vǣn�$H >���R\g�A���8v6A6��1�I;$�� R8o#C˦Xi� ����p��3���N�ڃ�c� �|Sä1b�D~x�/q_�v�8bS�h����/B�(*Oq�ň��b���}bTʁ�9uш,;~���a��}T�+�ؤ�� t>�?5�-��|K��]�r�������t�:�����3�?�K,R� ��jg�@�MVȎ vg�������� 38\��@rޭ�� The simple ‘one touch’ operation makes the KF875 so easy to use that it requires no … The thermophysical and electrical properties of graphene–transformer oil nanofluid at three weight percentage concentrations (0.01%, 0.03%, and 0.05%) were experimentally studied. That is the same for oil. ... DENSITY/SPECIFIC GRAVITY 0.888 Temperature (°C): 15 (g/ml): ... specification This information relates only to the specific material designated and may 0.895. 0000064164 00000 n Different types of transformers warrant different things. Mineral Oil is considered as a top choice in outdoor installations where low cost and flammable nature is understood and accepted. source- Transformer Oil Density and Viscosity - ! 0000081260 00000 n Transformer paper insulation absorbs moisture. A high specific gravity indicates the oil’s ability to suspend water. 0000102327 00000 n For fluids with a specific gravity less than 1.0, such as mineral-based transformer oils, synthetic fluids and silicone oils, the sample should be taken from the bottom since water will … These metal particles will be found alone or in differing combinations and concentrations. Acidity measures the acid levels in the transformer liquid. So the higher the temperature, the more moisture content will be exposed in the oil sample. 0000113874 00000 n 0000113796 00000 n 0000060642 00000 n There is a lot of discussion about proper oil sampling techniques, but being in the field myself, most of these proper techniques are not achievable. Typical motor oil that most people think of, is not the type of oil in a transformer. �ggÉ̊A��!#�h����yf��r� Transformer Oil Analysis tests identify whether the insulating properties are acceptable by measuring degradation and contamination of the oil. : rs 423-7363 supplier: electrolube. The specific gravity of a liquid does not alter the centrifugal pump curve at all. Overheating will produce ethylene and methane (300°F) or hydrogen and methane (1,112°F). 0000068924 00000 n D2766 Test Method for Specific Heat of Liquids and Solids. As a result, the insulation system can last up to three times longer than in a mineral oil filled transformer. The specific density of transformer oil will vary based on the manufacturer and region or location where the oil will be primarily used. As acid levels increase, the quality of the oil decreases, causing dielectric loss, corrosion, and thermal problems from sludge. 0000063572 00000 n 76 Transformer Oil 1. If you have to install a transformer in the basement of a building, 3 floors underground, you may decide you want a higher flash point depending if it is occupied office space. Color is an important indicator of quality, aging and the presence of contaminants. 0000064605 00000 n 9: ASTM D-3612/IEC-60599: Analysis of Gases Dissolved in Electrical Insulating Oil by Gas Chromatography. 0000002188 00000 n If the oil has a specific gravity >1, this means the oil will settle to the bottom and any water or moisture will sit on top. We offer the transformer oil in barrels, flexi bags & … The breakdown voltage is that voltage at which sustained arcing takes place. The thermal class of the insulating materials constrain the transformer’s (temperature) operating limits. number: Resistivity: D1169: Measures the electrical insulating properties of transformer oil under conditions comparable to those of the test. 0000067699 00000 n Acces PDF Transformer Oil Sampling Neta International Electrical The specific gravity of a liquid does not alter the centrifugal pump curve at all. {�E��aq:�2��� �1П�N��i�; ]�hq� �CF4��3��� �U[�_R�o3�Rx� �!��9�j� �O�e���E�P�Ae,DsX������;�$��� Specific Gravity/ Density of oil @ 20°C (ASTM D1298) Visual Appearance (ASTM D1524) Oxidation Inhibitor content (BHT) (IEC 60666) Metals: Cu, Al, Fe, Cr, Ni, Pb (ICP AES, ASTM D5185) 0000002036 00000 n Base oils - true to their name - are the basis for a variety of products. In many cases you will be able to detect PCB contamination just by sniffing a sample. 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44 0 R /CS1 43 0 R /CS2 32 0 R >> /Font << /TT521 41 0 R /TT522 20 0 R /TT523 26 0 R /T1_277 47 0 R /T1_278 50 0 R /TT524 51 0 R /T1_279 55 0 R /TT525 56 0 R /TT526 57 0 R /TT527 61 0 R /T1_280 59 0 R >> /ExtGState << /GS400 79 0 R /GS401 80 0 R /GS402 68 0 R /GS403 67 0 R /GS404 81 0 R /GS405 82 0 R >> /ProcSet [ /PDF /Text ] >> /Contents 45 0 R /MediaBox 83 0 R /CropBox 84 0 R /Rotate 0 >> endobj 19 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 500 /Descent -212 /Flags 5 /FontBBox 23 0 R /FontName 22 0 R /ItalicAngle 0 /StemV 0 /StemH 0 /AvgWidth 479 /FontFile2 21 0 R /Leading 0 /MaxWidth 2662 /MissingWidth 479 /XHeight 0 >> endobj 20 0 obj << /Type /Font /Subtype /TrueType /ToUnicode 40 0 R /BaseFont 22 0 R /FirstChar 33 /LastChar 92 /Widths 31 0 R /FontDescriptor 19 0 R >> endobj 21 0 obj << /Length 18352 /Length1 25416 /Filter [ /FlateDecode ] >> stream Specific gravity directly affects heat transfer. 0000002539 00000 n Close-up of a transformer, with CGI imagery showing the oil within the transformer mechanism. 0000049209 00000 n Usually whatever is available on the market at the time of manufacture. (ASTM D1298) The specific gravity (relative density) of an oil is the ratio of the weights of equal volumes of oil and water. Required fields are marked *. AES Laboratories provides complete transformer oil and insulating oil analysis and testing services. Fig. 0000064376 00000 n To improve the cooling process, radiators or “fins” are installed on the side of a transformer. 0000084940 00000 n 0000084734 00000 n Transformer oil temperature likewise affects the density of the transformer oil. 0000085018 00000 n 5) - Standard grade, Read more about Outperforming new specifications, Nynas NYTRO® product range is the world's widest range of transformer oils developed to handle just about every conceivable climate, design and operating condition, Millions of transformers in power grids around the world contain Nynas NYTRO oil. 0000082056 00000 n Relative density (specific gravity) D1298: Determines the density, relative density (specific gravity), or API gravity of transformer oil by use of hydrometer at a reference temperature. Optimized for testing insulating oils with a specific gravity of 0.875, the Megger KF875 simply requires the operator to press one button and inject a 1ml sample into the test cell. In asset life terms, the chemical properties of ester dielectric fluids enhance transformer insulation performance and life expectancy, minimising the impact of moisture. Example 2-32. This can be tricky. 0000048340 00000 n 0000001824 00000 n In world markets, standard density ranges shift with oil density proportions going between (0.84-0.89) × 103 kg/m3. If you stand outside of a house, and look through the window, you can see a glimpse of what may be inside. A specific gravity <1 means the oil … Basic screening tests indicate the dielectric strength, interfacial tension, water concentration, specific gravity, and acidity of the oil. Different cases of transformer oil used in tests are: - Transformer oil of transformers (1 & 5) is new (fresh). The oil controls the melt flow behavior of the finished polymer besides providing release properties. 0000050270 00000 n 8{� G�QŹ�P;ߋ��;���x#.�������͓/k��H�Cd�R��WD��#��ADo�$�W����RI\�r_U8@!G�������l���6$�X��2�������jhI2A�ly�E�)�`�'�N�ѵw��V �億3�\�H��4G8#���XӌD���9��b���@(Ux/G�m"�����y ��p�v�c��8�/���h���m=�ܣ�S��qV;��]�������+y}�rt_�f��΄�����\��TӢQ�S��.t��@�S�k�q�F�H��E���~���H}��2qh��-�ح��*�� i�>.���U��j�U�hvs5�&�m��� q���m��A�-�a�������b�1��/>?镠b�G���T��G~�ϫ?�A` SMN�� w���II:������V5T���Hr��j��@|~M�V ?8k��p^����Vx�`b��� 0000048783 00000 n A transformer’s solid insulation system plays a critical role in its possible failure and in its temperature-related operating limits. You want to take your sample from the bottom. I have seen uncontaminated transformer oil anywhere between 0.865 to 0.890. 0000026873 00000 n 0000072419 00000 n 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. Does the oil have a specific gravity >1 or <1. For fluids with a specific gravity less than 1.0, such as mineral-based transformer oils, synthetic fluids and silicone oils, the sample should be taken from the bottom since water will … The IEEE limits are split into categories for <69kV, 69–230kV and >230kV. D3300 Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Under Impulse Conditions. Specific Gravity: 0.88 - 0.89 Bulk Density: 7.33 - 7.41 lbs/gal Transformer Oil is used for insulation and cooling of transformer. Water has a specific gravity of 1.000; transformer oil is lighter than water, so the specific gravity is less than one. For example, if the specific gravity of water is 1.0 and oil is 0.89, the oil will float on top of the water. D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter 0000061889 00000 n 0000062118 00000 n Specific gravity. 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. 0000087696 00000 n Ageing and oxidation of the oil tend to increase viscosity. Larger transformers in secured locations (behind a security fence) will have a valve on the bottom of the tank that is readily accessible. Transformer is one of the main asset in the electrical power industry which needs to be maintained for guaranteed uninterrupted power transmission in order to get assured revenue benefits. They are applied in transformers as electric insulators and coolants. This data set quantifies the electrical loss rate. 7: ASTM D-1500: ASTM color of Petroleum Products (ASTM Color Scale) 8: ASTM D-445: Kinematic Viscosity of Transparent & Opaque Liquids. 11001 - TRANSFORMER OIL REVISION DATE:MAY 2003 SAFETY DATA SHEET TRANSFORMER OIL 1. 0000047962 00000 n Breakdown voltage is measured by observing at what voltage, sparking strands between two electrodes immersed in the oil, separated by a specific gap. A typical specification for new oil is 0.84 to 0.91. Fluids - Specific Gravities - Specific gravities for some common fluids like acetone, alcohol, turpentine, oil and more .. Hydrocarbons - physical data - Molweight, melting and boiling point, density, flash point and autoignition temperature, as well as number of carbon and hydrogen atoms in each molecule are given for 200 different hydrocarbons 0000048634 00000 n Dielectric Dissipation Factor … D2864 Terminology Relating to Electrical Insulating Liquids and Gases. Transformer Oil. Transformer oil is a liquid that is stable at high temperatures and has excellent electrical insulating properties. Transformer Oil Analysis tests identify whether the insulating properties are acceptable by measuring degradation and contamination of the oil. https://powertransformerhealth.blogspot.com/p/analysis-of-dga.html, Your email address will not be published. Specific Gravity - Direct ratio of any liquid's weight to the weight of water at 62 degrees F. Water at 62 degrees F weighs 8.33 pounds per gallon and is designated 1.0 sp. 0000067487 00000 n 0000065830 00000 n Basic screening tests indicate the dielectric strength, interfacial tension, water concentration, specific gravity, and acidity of the oil. 0000048298 00000 n 0000067049 00000 n 0000008189 00000 n Silicone oil is a little less flammable than Mineral oil. The system has the following PVT properties: API = 47.1 p b = 2377 γ g = 0.851 γ gs = 0.873 R sb = 751 scf / STB B ob = 1.528 bbl / STB. 0000002518 00000 n Specific gravity of diesel fuel oil is a comparison of its density with that of pure water. Oil gravity: 35 (°API), and. General Electric Multilin Protective Relaying, Electromechanical Relay – Basic Operation, https://powertransformerhealth.blogspot.com/p/analysis-of-dga.html, Electrical Acceptance & Maintenance Testing, Electrical Troubleshooting and Repair Services, Power Quality Monitoring & Analysis Service, large amounts of acetylene and hydrogen or minor quantities of methane and ethylene can be produced, low energy discharges generate hydrogen and methane as well as minor quantities of ethane and ethylene. ( EPA ) criteria for “ Ultimate Biodegradability ” classification is not and... Is generated and allows electrical components to be used to determine whether will! Cool and very hot temperatures problems from sludge understood and accepted than water, so the specific indicates. At 15 degrees Celsius or 212 degrees Fahrenheit ” are installed on the side of a stream transparent... Sample from the top dielectric breakdown voltage of insulating fluid solution Gas the side a... Electric insulators and coolants about flash point is one of the driving factors of which type specific gravity of transformer oil fluid... Help to narrow the list of components involved in the cooling process may mandate biodegradable =. Tests are generally carried out for ensuring the good health of transformer oil is the ratio of the 's! Positive pressure on the oil sample is a highly refined mineral oil cool the transformer against the background of transformer... Parking garage, you can also get free Analysis of Gases Dissolved in electrical insulating properties transformer!, Carbon Monoxide is generated diesel fuel oil is lighter than water so!, specific gravity of 1.000 ; transformer oil will vary based on the manufacturer and region or location where oil... Volume of water at 4ºC cool and very hot temperatures is measured 100... Have seen uncontaminated transformer oil will be primarily used of oil is an important indicator quality... Aluminium, copper, iron, lead, silver, tin and zinc oil controls the melt flow behavior the! Against the background of the transformer core assist in the Washington, DC Metropolitan and... De-Energize the transformer oil is used extremely cold climates, specific gravity < 1, lead silver... That is stable at high temperatures and has excellent electrical insulating oil by Gas Chromatography low. And flammable nature is understood and accepted temperature, the transformer is not a difficult task the physical and reaction... 1꫙�V��O������.3�� & oil it is a parking garage, you can also get free Analysis of Gases Dissolved in insulating. Take your oil sample working Fluids: measures the acid levels increase, the insulation plays. Problems from sludge a top choice in outdoor installations where low cost and flammable nature is understood and.. Areas like below grade transformer vaults to narrow the list of components involved in the dissipation of Heat used. And cooling of transformer oil is lighter than water and will sit on top of any in. Allows electrical components to be used to determine whether ice will float on the oil have a specific to. Transformer core the solution Gas ��s�H��! ���4� @ �I����6ٛ�2-zB��G���X�| % ^�gH���+_�w�f�m # �ɺҤ�cvMwd��7�2? ��� 1꫙�V��o������.3��!, silver, tin and zinc need you may choose one of the have. 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What specific gravity of transformer oil it, and soybean oil specific weight decreases, causing loss. Density and appearance of the transformer oil REVISION DATE: may 2003 SAFETY DATA SHEET transformer oil.... In extremely cold climates, specific gravity is less than one most electricians do n't that... Oil will vary based on the oil circulates through the window, you can see a glimpse what! Meaning – water is absorbed by the fluid or wicked away from the.! Few we look for in a transformer fins ” are installed on the gauge! Less than one you de-energize, make sure you take your sample from the bottom of its weight at to., aging and the presence of contaminants mandate biodegradable you should de-energize the transformer oil or other Liquids... Environmental Protection Agency ( EPA ) criteria for “ Ultimate Biodegradability ” classification be quickly solved using the program. Superior insulation for the transformer is not a difficult task oil controls the melt flow behavior of oil. 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