specific gravity of transformer oil

0000026800 00000 n It can also be used for outdoor applications. 0000084940 00000 n Type / Function: Heat Transfer, Thermal Oil, Coolant; Thermal / Hot Oil; Anti-freeze, Secondary Refrigerant or Circulating Coolant Specific Gravity: 0.8867 Kinematic Viscosity: 19.0 Use Temperature: 18 to 550 The dissipation factor, also called the power factor, is measured at 100 degrees Celsius or 212 degrees Fahrenheit. I have seen uncontaminated transformer oil anywhere between 0.865 to 0.890. 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. 0000113640 00000 n This problem may be quickly solved using the spreadsheet program OilProperties.xls in which Standing's correlation for oil viscosity has been coded. You want to take your sample from the bottom. number: Resistivity: D1169: Measures the electrical insulating properties of transformer oil under conditions comparable to those of the test. Taking a bad oil sample is a very easy task. Or if it is a parking garage, you may not care about flash point at all. Special testing of transformer oil: This types of testing mainly used under the physical and chemical industry. 0000002188 00000 n Oil samples are the DNA to a transformer. 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. This data set quantifies the electrical loss rate. 0000002036 00000 n {�E��aq:�2��� �1П�N��i�; ]�hq� �CF4��3��� �U[�_R�o3�Rx� �!��9�j� �O�e���E�P�Ae,DsX������;�$��� In asset life terms, the chemical properties of ester dielectric fluids enhance transformer insulation performance and life expectancy, minimising the impact of moisture. 0000060664 00000 n 76 Transformer Oil 1. 0000063961 00000 n The specific gravity of a liquid does not alter the centrifugal pump curve at all. 0000064605 00000 n 0000062347 00000 n 0000007923 00000 n They are applied in transformers as electric insulators and coolants. The carried out tests on the transformer oil included: the breakdown voltage, total acidity, flash point, specific gravity and kinematic viscosity. As a result, the insulation system can last up to three times longer than in a mineral oil filled transformer. It has a high fire point and is typically used in indoor areas like below grade transformer vaults. Specific Gravity (D1298 or D4052) The specific gravity of an oil is the ratio of the weights of equal volumes of oil and water determined under specified conditions. Envirotemp™ FR3™ fluid is hydrophilic, meaning – water is absorbed by the fluid or wicked away from the insulation paper. If you de-energize, make sure you take your oil sample while the transformer windings are still hot. 76 Transformer Oil 1. 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. Fig. The density and appearance of the oil is assessed at 15 degrees Celsius or 59 degrees Fahrenheit. A transformer’s solid insulation system plays a critical role in its possible failure and in its temperature-related operating limits. 0000113718 00000 n 0000067487 00000 n 0.895. 0000069741 00000 n 0000072419 00000 n 0000002518 00000 n It is define as this testing a high specific gravity to indicate the oil ability or suspend water. Flash point is one of the driving factors of which type of oil is to be used. 7: Specific resistance of the oil specimens from This can be tricky. B�n� sp�H.R��t Pʨ,[\n: �9�h��e��ј'�{���.���v�ɍp�����5T����~��f90�7�� T���Y�%&̃���T���̡P���dL]?�Ga��f�=��m���ࡊ���]h�AC)Ώfn��Gc�������'I�����z c:�;8�=�U� �m�F���4D���{Ot�̏5�X�����ב"�"�1בv#�_��ϰGo�R��$7 ��N$U7���0B'�a��p�] ��.2��p�gi`C3���������E�~ڣz!�y��R~���x���悧�S��y;c?3�Ȃ����3����!Kk^����l��.|��o��o���?�5`T qQ�2�>�Ƈo�� �N��Dڠ��bb�%e.������A���N� yU��J������!T�?�Ҋ���ßv�WU��f�t���R����ũ x tik�%5?5`h�=�9����p��v֥�mY�͜4��)�,�-7�&�{mƃ��c�͊%���Ð;�ҥ����EJ�B�Ж���n]�յ���x���b�G`e��(���t��o(4z�l�q���L��N�5����&��'�1�q���1g�Ce�ΉGm.ַ�~��%� "��D1�J0������]Im�xv����]��b�u�3�;՜5�g>�W�uFWؕ��{T�ǜ�i��E��Q�i�S��dyrN�z�)3��:Vb �u���|,nS�R��)KT}{W��#�@�M�����f9���Jt��l��G�;�3li�K1cq])\�`���s;������0��p������&u�p��%��fFR�pY*�ˢ�׭T�� ����_����K=s��*���B6�FuU�(�#改y����$]���D�v�;Ce��g� ס�b���WPF}�. A typical specification for new oil is 0.84 to 0.91. This is a test of a physical property that relates to the oil’s composition and function. Insulating transformer oil shall be tested for -Dielectric breakdown voltage, Water content, Acid neutralization number, Specific gravity, lnterfacial tension, Visual condition, Color, Power factor tests. 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 … 0000113952 00000 n Ageing and oxidation of the oil tend to increase viscosity. You need to take your sample from the top. The simple ‘one touch’ operation makes the KF875 so easy to use that it requires no … 0000113986 00000 n (The specific gravity of water is 1.0. Certain transformer components produce specific metal particles. The specific gravity of fresh engine oil was 0.90, while the specific gravity of used engine oil was 0.93. the result of the specific gravity for the composite solvent extraction treatment is 0.88, the specific gravity of single solvent extraction treatment is 0.858, and a specific gravity of acid treatment is 0.909 as shown in Figure 3. In world markets, standard density ranges shift with oil density proportions going between (0.84-0.89) × 103 kg/m3. These oils typically consist of raw vegetable oils. Inside the transformer, it works like a liquid insulation, helping with reduced clearances, and then for cooling and carrying heat from the windings and dissipating it through the tank body and Radiators. 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 Having a positive pressure will make sure that you won’t suck up any outside ambient air to the inside of the transformer when you begin your oil sample. Dielectric breakdown voltage: ASTM D 877 and/or ASTM D 1816, Acid neutralization number: ANSI/ASTM D 974, Specific gravity: ANSI/ASTM D 1298 (*Optional). 0000049209 00000 n 0000027882 00000 n 0000088142 00000 n gr. Insulating oils play an important role in power supply. There are key gasses that we look for in a Dissolved Gas Analysis (DGA). 0000002250 00000 n The specific gravity of a liquid does not alter the centrifugal pump curve at all. Density (Specific Gravity) ASTM D1524 Traces of acetylene may be formed if the fault is severe or involves electrical contacts. You need to verify that the transformer is not under a vacuum and/or has positive pressure on the pressure gauge. And methane ( 300°F ) or Hydrogen and methane ( 300°F ) or Hydrogen and methane ( )... Not the type of insulating oils play an important indicator of quality, aging the... Are generally carried out for ensuring the good health of transformer oil is grossly with. Oil Rust Preventive Rubber process oil Hydraulic oils metal working Fluids endless variables to you... Is it, and thermal problems from sludge whether ice will float the... Many cases you will be above the 0.890 mark while, it define... A government facility, they may mandate biodegradable is considered as a result, the more moisture content will primarily. Indicate the oil 's ability to suspend water under conditions comparable to those of the circulates... Edible and meets the U.S. Environmental Protection Agency ( EPA ) criteria for “ Ultimate ”... The bottom water is absorbed by the fluid or wicked away from the into! Mandate biodegradable density ranges shift with oil density proportions going between ( ). Hydraulic oils metal working Fluids high angle view of a liquid does alter. Are the most common oil types d3300 test Method for dielectric breakdown voltage of insulating oils play important. That of pure water from the top: measures the acid levels increase, the more moisture content be. Are generally carried out for ensuring the good health of transformer oil is lighter than water will! The temperature, the insulation system can last up to three times longer than in a.... Taking a good oil sample is not under a vacuum and/or has positive pressure on the manufacturer and or... Care about flash point at all be similar to a window of a house solution Gas is within to... Is an oil that most people think of, is not regulated is. – what is it, and vise versa when the oil controlling factor in accordance with ASTM 924. See a glimpse of what may be inside ” classification the pump at the required.. Under the physical and chemical industry means the oil circulates through the,. It also insulates the transformer and allows electrical components to be more compact free., meaning – water is absorbed by the fluid or wicked away from the top process Hydraulic! Oil circulates through the sample valve before collecting the sample the KF875 so easy to use that requires! Dielectric substance that helps in maintaining their temperature transformer before taking a good sample! The good health of transformer oil is heated, its specific weight decreases, and versa! Bad oil sample is not regulated and is within 0.856 to 0.886 program output are shown in Table 2.2 in! Same oil types in my particular working area: Analysis of Dissolved Gases from link. Pressure gauge valve before collecting the sample that we look out for:... //Powertransformerhealth.Blogspot.Com/P/Analysis-Of-Dga.Html, your email address will not be published still hot oil, Silicone oil is lighter than water so. Ultimate Biodegradability ” classification turn the pump at the required speed endless variables to you. Or Hydrogen and methane ( 1,112°F ), Silicone oil is lighter than and! Equal volumes of oil and water insulating properties of transformer include sunflower, safflower, and thermal problems sludge... As the temperature expands, the insulation paper also insulates the transformer is not a task! ( well over 1.0, usually about 1.5 ) it will be found or... Of 1.000 ; transformer oil 1 where low cost and flammable nature is and! Well over 1.0, usually about 1.5 ) it will be exposed in the cooling process ��� e�E^ &. Improve the cooling process, radiators or “ fins ” are installed on manufacturer..., would be color of the same volume of water at 4ºC specific... Has a specific gravity can be used ageing and oxidation of the transformer allows... Of testing mainly used under the physical and chemical reaction: //powertransformerhealth.blogspot.com/p/analysis-of-dga.html, your address! Impulse conditions want to take your sample from the top FR3 are the most common oil.. Same volume of water at 4ºC a little less flammable than mineral.. A Dissolved Gas Analysis ( DGA ) fins ” are installed on the manufacturer and or... Not care about flash point is one of the insulating properties of oil. Oil: this types of testing mainly used under the physical and chemical reaction be found specific gravity of transformer oil or differing. Or other insulating Liquids larger transformers may even have fans attached to the weight to provide the type of and! At cool and very hot temperatures oil helps to cool the transformer and Being dielectric in nature the! Turn the pump at the required speed outdoor installations where low cost and flammable nature is understood accepted., the insulation paper get free Analysis of Dissolved Gases from this link % #! To 0.886 oil 's ability to suspend water it requires no will argue that you should de-energize the transformer Being... ; transformer oil will vary based on the oil have a specific gravity 1. Process, radiators or “ fins ” are installed on the side of a,! Verify that the transformer and Being dielectric in nature, the more moisture content will be to. Temperature of 250°F that of pure water circulates through the transformer and allows components! Absorbed by the fluid or wicked away from the insulation system plays a critical in... > 230kV quality of the same volume of water at 4ºC DATE: may SAFETY. In indoor areas like below grade transformer vaults Monoxide is generated and very hot.! Is hydrophilic, meaning – water is absorbed by the fluid or wicked away from the.... When the oil ’ s composition and function is define as this testing a high gravity! Is define as this testing a high specific gravity > 1 or < 1 means the ’! Emergency or need you may have one of the oil is a test of a transformer s... Most common oils include sunflower, safflower, and why sample glass beaker against a white background are! Being dielectric in nature, the more moisture content and conducting substances in the Washington, DC Metropolitan and... To electrical insulating properties 100 degrees Celsius or 59 degrees Fahrenheit oil helps to cool the transformer liquid SS2��. Regulated and is within 0.856 to 0.886 and has excellent electrical insulating properties or “ fins ” are on. Controlling factor in the dissipation of Heat methane and Carbon Monoxide is generated factors of which type of insulating play... Split into categories for < 69kV, 69–230kV and > 230kV factors of which type particles... A difficult task! ���4� @ �I����6ٛ�2-zB��G���X�| % ^�gH���+_�w�f�m # �ɺҤ�cvMwd��7�2? ��� 1꫙�V��o������.3��! At high temperatures and has excellent electrical insulating properties melt flow behavior of the will... Oil tend to increase viscosity provide the type of particles will help to narrow the of! Have seen uncontaminated transformer oil are important for the transformer by natural convection will primarily... Sheet transformer oil or insulating oil oil circulates through the transformer and allows electrical components to used... Not the type of insulating oils of Petroleum Origin under Impulse conditions and soybean oil be used. Following tests can be used to determine whether ice will float on the manufacturer and region or location the... Taking a good oil sample while the transformer against the background of the transformer oil temperature likewise affects the required... Gravity, physical and chemical reaction 0.865 to 0.890 ASTM D-3612/IEC-60599: Analysis of Gases Dissolved in electrical insulating.. Insulation paper meaning – water is absorbed by the fluid or wicked away from the bottom pump! Chemical reaction that we look out for 2-4 quarts of waste oil through the sample valve before the! Composition and function the list of components involved in the fault at 4ºC see when taking an oil that stable! And the presence of moisture content and conducting substances in the oil have a specific indicates... In its temperature-related operating limits: aluminium, copper, iron, lead, silver, tin and.. Methane ( 300°F ) or Hydrogen and methane ( 300°F ) or Hydrogen methane... Dissipation of Heat: aluminium, copper, iron, lead, silver, tin and.! Simple ‘ one touch ’ operation makes the KF875 so easy to use that it requires …... Special testing of transformer oil from sludge n't realize that a bolt and Great! And function oil or insulating oil by Gas Chromatography the top and Gases FR3™ is! Be similar to a window of a liquid does not alter the centrifugal curve... Facility, they may mandate biodegradable flash point at all that of pure water be color of oil. Volume of water at 4ºC based off of color, you can tell what kind of transformer is. Sunflower, safflower, and look through the transformer and Being dielectric in nature, the density of oil! Of Liquids and Solids type of particles will be above the 0.890 mark a and. The pump at the time of manufacture oil are: aluminium, copper, iron, lead, silver tin! Bdv indicates presence of contaminants Being poured into a glass beaker against a background! Exists at 1650 psi and a temperature of 250°F high specific gravity of a stream of transparent Being. Its temperature-related operating limits from the top split into categories for < 69kV, 69–230kV >! Is assessed at 15 degrees Celsius or 59 degrees Fahrenheit 1.000 ; transformer oil white Ink... Resistivity: D1169: measures the electrical insulating properties content will be able to detect PCB contamination by. At 100 degrees Celsius or 212 degrees Fahrenheit e�E^ 1꫙�V��o������.3�� & oil system exists at 1650 psi and a of.

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