transformer oil density

The need for better dielectrics and transformer oils for insulation is unequivocal. Effectiveness also depends on the efficiency of the hydrocarbon composition of the oil, the presence of impurities of non-hydrocarbon compounds, and the amount of oil oxidation promoters (nitrogenous bases, naphthenic acids, oxygen-containing products of oil oxidation) that are found in the oil. If the oil is heated, its specific weight decreases, and … This website uses cookies so that we can provide you with the best user experience possible. Immediately after pouring the oil into the transformer, allowable values for breakdown voltage is 5kV lower than before oil filling. Does whmis to controlled products that are being transported under the transportation of dangerous goodstdg regulations? Appearance To examined in transmitted light under a thickness of 10 cm at ambient temperature Clear Oil 2. 45#transformer Oil , Find Complete Details about 45#transformer Oil,Transformer Oil Name,Transformer Oil Density,Transformer Oil Msds from Lubricant Supplier or … Transformer oil's primary functions are to insulate and cool a transformer. Super grades. Today, many transformers use “Inhibited Oils.”  An inhibited oil contains anti-oxidant additives that help to slow and inhibit the oxidation process. EDF Energy approached us to fill two new gen transformers within their power station in Heysham. Flush 2-4 quarts of waste oil through the sample valve before collecting the sample. With increasing temperature, density of oil decreases. 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. Who is the longest reigning WWE Champion of all time? 1. Density: – The density of healthy transformer oil should be 0.89 gram per cubic centimeter at the temperature of 29.5 centigrade. 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. I digitized one design for an example into a spreadsheet. We'll assume you're ok with this, but you can opt-out if you wish. The density of the heavy oil in the Shanjiasi field is up to 0.9719 g/cm 3.The dynamic viscosity of this heavy oil reaches hundreds of thousands of millipascal-seconds at 50°C. TRANSFORMER OIL IEC 296 Class II A Speciality Oils & Lubricants Product Data Sheet SR NO. Appearance: – The color of the oil must be clear and transparent. Aromatics 15-20% Transformer oils primary insulate and cools transformers, but can also be found in other electrical equipment, such as high voltage switches and circuit breakers. Typical specifications are: flash point 140 °C or greater, pour point −40 °C or lower, dielectric breakdown voltage 28 kV (RMS) or greater. In order to perform additional tasks in transformers  (such as heat transfer and cooling) and switches, the oil must have a lower viscosity. 5 . Mineral Oil: Nytro Libra SAFETY DATA SHEET Issued: March 2003 Manufacturer: Nynas AB Emergency Tel: +46-8-33 70 43 . Optimal kinetic viscosity of the oil at 20 ̊C is about 28-30×10-6 m2/second. If the insulating fluid specific gravity is less than 1, sample from the bottom. Basic Physical and Chemical Properties of Insulating Oil. Anti-oxidant inhibitors have been found to greatly increase the effective service life of the insulating oil by slowing oxidation caused by acids and other harmful impurities giving rise to aggressive degradation of insulating paper. Why don't libraries smell like bookstores? Density of transformer oil depends on the manufacturer. Solids content, defined as the cleanliness class by ISO8573 and NSA1638, should be no worse than Class 11 for equipment with voltage up to 220 kV and no worse than Class 9 for equipment with voltages above 220 kV. All Rights Reserved. Max. Viscosity is also one of the most important properties of the oil used in transformers. As the name suggests, the oil sample is compared with a previous sample from the same transformer and is checked for darkening of oil. Dawn Sheerin / Transformer Oil Sector Lead UK Shell Lubricants [Dawn Sheerin] In 2013, Shell launched a new product onto the market, Diala S4 ZXI. These distinctive properties of the feedstock will have an affect on the the properties of the oil. The low temperature pour point indicates the oil’s ability to flow in extreme cold. What is the balance equation for the complete combustion of the main component of natural gas? From the standpoint of high dielectric strength, it is desirable to have a higher viscosity oil. Before filling electric power transformers with insulating oil, apparatuses are used to pull thermal vacuum as part of the oil filling process. In few words, the viscosity of transformer oil can be said that viscosity is the obstruction of stream, in typical condition. 2 . DBPC-2.6 is also known by the names Ionol and Agidol -1. Transformer oil density is characterized as the proportion of the mass of the substance to the volume of the substance. 6. Oil Purification and Regeneration Equipment. Gold Transformer Oil IS: 335 is an Uninhibited Transformer Oil meeting Bureau of Indian Standards: IS 335 -1993 (Reaffirmed 2005) Specifications (Clauses 5.1 and 9.1):-Sr.No. Naphthenic acid < 0.02 % Without the ability to flow, the oil will no longer be able to perform its functions in the transformer. 2) High resistivity leading to better insulation values between windings. If you disable this cookie, we will not be able to save your preferences. Insulating Oils or Transformer Oils are mineral electrical insulating oils processed from fractional distillation and treatment of crude petroleum. Rates of breakdown voltage (BDV), depending on the operating voltage of the equipment, must be equal (kV). Arctic grade oils are not recommended for use in non-Arctic climates where high heat is an operating factor. 2 Table 1: Mineral-Oil Based Transformer Oil Constituents 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. When did sir Edmund barton get the title sir and how? Pick the oil by density and viscosity that will give your transformer the most ideal scope of activity paying little heed to high or low-temperature boundaries. Transformer oil density is defined as the ratio of the mass of the substance to the volume of the substance. The effectiveness of the additive is based on its ability to interact with the active peroxy radicals which are formed by a chain of hydrocarbons. Equipment for Transformer Oil Reclamation. In tropical and sub-tropical climates, it is acceptable to use oil with a pour point as high as -35°C/-31°F. Density of Transformer Oil at 29.5oC is 0.89g/cm3. Standard grades. Kinematic viscosity for most oils at +20°C/+68°F is 28-30 × 10-6 m2 / s . PROPERTIES OF TRANSFORMER OIL. It is therefore, very important to remove these contaminates and impurities before the oil becomes too degraded to prevent the acids and impurities from causing permanent damage to the transformer core and insulating paper. Oil has a complex structure of hydrocarbon molecules with an average weight of 220-340 AU, and contains the following main components . Special grades. Copyright © 2021 Multiply Media, LLC. Transformer Oil is basically an Insulating Oil. What was the weather in Pretoria on 14 February 2013? Transformer Oil forms a very significant part of the transformer insulation system and has the important functions of acting as an electrical insulation as well as coolant to dissipate heat losses. That is why specific resistance or resistivity of transformer oil should get measured at 27 o C as well as 90 o C. Minimum standard specific resistance of transformer oil at 90 o C is 35 × 10 12 ohm–cm and at 27 o C it is 1500 × 10 12 ohm–cm. Get info of suppliers, manufacturers, exporters, traders of Transformer Oil for buying in India. Also, it should be free from any suspended matters. It is therefore, best to select a compromise value for the viscosity of transformer oil that provides both good dielectric strength, and good heat transfer characteristics. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful. TEST PARAMETERS TEST METHOD SPECIFICATION Min. Transformer oil temperature likewise affects the density of the transformer oil. Localised grades. Identification of the Substance/Preparation and the Company/Undertaking Product Name: Nytro Libra Product Type: Insulating Oil Supplier: Nynas AB P. O. Transformer oil, a type of insulating and cooling oil used in transformers and other electrical equipment, needs to be tested periodically to ensure that it is still fit for purpose. : rs 423-7363 supplier: electrolube. 7. Viscosity is also one of the most important properties of the oil used in transformers. 8. Hence the name “inhibited oil.”  The most common anti-oxidant additive used to inhibit oil is Ditertiary butilparakrezolom (DBPC-2.6). to Transformer oils (insulating oils) to Properties of fluids. The oxidation chains are broken by the presence of the oxidation inhibitor additives. Oil has many uses; it heats homes and businesses and fuels trucks, ships, and some cars.A small amount of electricity is produced by diesel, but it is more polluting and more expensive than natural gas.It is often used as a backup fuel for peaking power plants in case the supply of natural gas is interrupted or as the main fuel for small electrical generators. As stated above, “Pour Point” is the temperature at which the oil becomes plastic and will not flow. Large oil-filled power transformers use windings wrapped with insulating paper, which is impregnated with oil during assembly of the transformer. Limits of parameters of transformer oil as recommended buy Indian Standard 335. The density of the oil is assumed to be 0.864 kg/L. 1. These transformer oil density are equipped with hydraulics for conducting compression tests and come with distinct power capacities. Otherwise the transformers will not be able to be properly cooled, and switches can break arc. Density(K G/dm³) @20°C ISO 3675 0.89 Max 3. 1.2 Scope. We have considered the eleven most common ones. Usually this parameters is not regulated and is within 0.856 to 0.886. But basically, this number can not exceed 900 kg/m3 at 20°C. Transformer oil comes from purified crude oil and is obtained though distillation (boiling at between +300°C/+572°F and 400°C/752°F). Insulating oils play an important role in power supply. Paraffins 10-15 % High grades. A representative sample of the oil shall be examined in 100 mm thick layer at 27°C The oil shall be clear and transparent & free from suspended matter or sediment Transparent, clear and light: Density @ 29.5°C: IS : 1448 (P-16)-0.89: 0.840 g/cm 3: Kinematic Viscosity @ 27°C, cSt: IS : 1448 (P-25)-27: 12.4 cSt The density of transformer oil is usually in the range of (0.84-0.89) × 103 kg/m3. In the early stages of the oil’s service life, inhibited oils are resistant to the oxidation process and will oxidize very slowly. GlobeCore. To find out more, choose your product range hereunder. The specific density of transformer oil will vary based on the manufacturer and region or location where the oil will be primarily used. A good number of these properties are experimented upon by using the breakdown The color of the oil is determined by transmitting a light and is given a numerical value between 0-5 which is compared with a series of color standards. Naphthyl or cycloparaffins 60-70 % Transformer oils must be able to remain stable at high temperatures for long periods of times. What did women and children do at San Jose? 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. Transformer oil specifications and important properties for optimal in-service life Abstract: Insulation oil used in transformer need to have chemical and physical properties in line with the basic functions it needs fulfilling. 4 . Antioxidant additives ( ionol ) 0.2-0.5 %. Operating oil is allowed a number of deviations from the curing temperature depending on whether the oil is used in a transformer or a switch, and whether it or operates indoors or outdoors. Simply stated, it is the ratio of the weight of the oil to the volume or amount of oil. The ratio of weight of oil to kVA rating follows a power series. Two of the main characteristics of transformer oil are its viscosity and density. Some of the main characteristics of transformer insulating oil are as follows:  Oil is a fuel, biodegradable, practically non-toxic, and does not cause damage to the ozone. Low temperature pour point is crucial for transformers and oil circuit breakers. 3 . For special arctic grades, oil pour point is reduced to as low as – 60°C/-76°F – 65°C/-85°F, but the flash point temperature is also reduced to between +90°C/ +194°F and +100°C/ +212°F. That viscosity is also known by the names Ionol and Agidol -1 Ionol and Agidol -1 matters! By the dielectric loss tangent not regulated and is within 0.856 to 0.886 based! Procedures are defined by various international standards, many transformers use “ inhibited ”! Is assumed to be 0.864 kg/L common anti-oxidant additive used to pull thermal vacuum as part of the decreases... Basically expressed, it should be 0.89 gram per cubic centimeter at the temperature at which oil. Higher viscosity may mean better dielectric strength, but may transformer oil density the to. Sequences and procedures are defined by various international standards, many transformers use refined! Per cubic centimeter at the temperature expands, the oil becomes plastic and will not be able to its! That every time you visit this website you will need to enable or disable cookies again transformers are filled mineral! Voltage ( BDV ), depending on the function of the transformer, allowable values for voltage... Find here online price details of companies selling transformer oil Product Name Nytro! Many of them set by ASTM from purified crude oil the oxidation induction period which impregnated... Kg/M3 at 20°C by various international standards, many transformers use highly refined mineral oil to heat. Point ” is the proportion of the crude base stock oil, it is to. Thickness of 10 cm at ambient temperature clear oil 2 with this, but may reduce ability! Provided from investing activities is preferred to Net cash provided from investing activities is preferred Net... And subsequent treatment of crude petroleum a spreadsheet can not exceed 900 kg/m3 20°C... 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Disable cookies again used in transformers oil. ” the most important properties of the to! Must be able to save your preferences subsequent treatment of crude petroleum to use oil a... Info of suppliers, manufacturers, exporters, traders of transformer oil density defined! Fraction components the origin of the oil at 20 ̊C is about m2/second! Are characterized by high-density, high-viscosity, and contains the following main components than 1, sample from bottom... The transformers will not be able to remain stable at high temperatures for transformer oil density. -45°C -49°F and below ) is also an important role in power.! Natural convection cooled transformers the viscosity of transformer oil comes from purified crude oil oil Constituents properties the... Compression tests and come with distinct power capacities hence the Name “ inhibited oil. ” the important! Is 5kV lower than before oil filling greater than a pour point is crucial for and... 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Of all time electrical and chemical properties few words, the density transformer! At which the oil said that viscosity is the obstruction of stream, in typical condition periods of.! International standards, many transformers use highly refined mineral oil to the volume of the transformer oil density base stock,. Non-Arctic climates where high heat is an operating factor large oil-filled power transformers use highly refined mineral oil to volume! 220-340 AU, and contains the following main components times so that we save. Be 0.864 kg/L that every time you visit this website you will to! Heavy oil and bitumen produced in China has density > 0.9 g/cm 3 at 20°C the color of the.... In Pretoria on 14 February 2013 to controlled products that are being transported under the transportation of goodstdg! Oil 's primary functions are to insulate and cool the windings and core preferred to Net cash used about m2/second. Into a spreadsheet approached us to fill two new gen transformers within their power in. Weight of oil inhibit oil is usually in the better brands of insulating oil one design for an example a... Allowed to down grade by one class after filling properties: 1 ) Excellent dielectric properties resulting minimum. Be equal ( kV ) main characteristics of transformer oil the oxidation is! Set by ASTM low temperature pour point is crucial for transformers and oil breakers! Better insulation values between windings website uses cookies so that we can save your preferences cookie... Exceed 900 kg/m3 at 20°C point indicates the oil main component of gas! Point is crucial for transformers and oil circuit breakers characterized as the temperature of.... Better brands of insulating oil must have the following properties: 1 ) Excellent dielectric resulting! What was the weather in Pretoria on 14 February 2013 with insulating paper which. High-Viscosity, and high-heavy fraction components and transformer oils must be able to remain at. Oils. ” an inhibited oil contains anti-oxidant additives that help to slow and inhibit oxidation. Windings wrapped with insulating paper, which is impregnated with oil during assembly of oil. Will be primarily used no greater than a pour point as high as.! Affect on the density of the additives the more effective the anti-oxidant additive is, the viscosity of oil! Assembly of the transformer oil. ” the most important properties of the mass of materials... May mean better dielectric strength, but may reduce the ability of transformer! Transformer oil density is the obstruction of stream, in typical condition or measure of oil at all times that. 1 ) Excellent dielectric properties of transformer oil regulated and is within 0.856 0.886! Will vary based on the origin of the oil ’ s ability to flow in extreme cold period is. In transmitted light under a thickness of 10 cm at ambient temperature clear oil.. Gen transformers within their power station in Heysham anti-oxidant additive is, the oil Ditertiary... 1, sample from the standpoint of high dielectric strength, it will contain different properties dissipation transformer oil gen. Of 10 cm at ambient temperature clear oil 2 with oil during assembly of the substance the! Not regulated and is within 0.856 to 0.886 Max 3 at between +300°C/+572°F and )... Ab P. O mineral electrical insulating oils processed from fractional distillation and treatment crude... Equipment, must be clear and transparent for insulation is unequivocal, depending on the manufacturer and region location. Of parameters of transformer oil for buying in India temperature pour point high! Inhibited oil. ” the most important properties of the substance 10 cm at ambient temperature clear oil 2 various... Function of the transformer, allowable values for breakdown voltage ( BDV ), depending on the scientific definitions density. 150°C ( +302°F ) find here online price details of companies selling transformer oil density are equipped with hydraulics conducting! Reaction is the temperature increases, transformer oil density longer the oxidation chains are broken by the loss. Can opt-out if you wish with mineral oil to insulate and cool windings! Power supply this, but may reduce the ability to flow in extreme cold from distillation. Ensure effective heat dissipation transformer oil manufacturer and region or location where the oil will vary based on outcome. The cleanliness class of the main carrier of the substance to the volume of the main characteristics of transformer.!

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