In few words, the viscosity of transformer oil can be said that viscosity is the obstruction of stream, in typical condition. Acknowledged as the leading Public Sector Company of Pakistan, PSO has been driving the wheels of the national economy and is the first public company to pass the 1 Trillion rupee revenue mark. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. 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 Resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. Therefore, to maintain all the operating parameters of transformer oil at normal levels, it is necessary to perform certain activities: oil filtration, cleaning, drying and oil reclaiming. (c) Viscosity: Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Viscosity of the pure transformer oil and prepared nanofluids containing 0.1 Vol% of nanoparticles in the temperature of 25 °C and shear rates of 26.4 to 237.6 s − 1. Great oil ought to have a low viscosity with the goal that it offers less protection from the traditional stream of oil along these lines not influencing the cooling of a transformer. The media listed above have to be considered as examples only, as their viscosity may change substantially due to different composition and/or other temperatures. The Viscosity-Gravity Constant (VGC) is ascertained after ASTM D2501. One of the main functions of the oil in a transformer is to transfer heat from the core to the external radiators. It is used as electrical insulation material, for heat dissipation and arc-extinguishing, as well as the medium protecting solid insulation from air and moisture. viscosity is a parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in huge transformers. The breakdown voltage is that voltage at which sustained arcing takes place. Then, it is crucial to decrease the viscosity of the aged oil. Oils with particular carbon compose dispersion are intended for different businesses. Transformer Dielectric Fluid Comparison. Transformer Oil Usage precautions Avoid spilling. First of all we are talking about breakdown voltage, acid number, dielectric loss tangent and flash point. Kinematic viscosity is obtained by dividing the known dynamic viscosity by transformer oil density. We'll assume you're ok with this, but you can opt-out if you wish. Viscosity of Transformer Oil. 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. Table 6 shows the viscosity value of the fresh, aged, and treated oil samples. Viscosity is a parameter that affects heat transfer as oil naturally circulates in small transformers and as it circulates by pumping in large transformers. Each fluid turns out to be thicker if the temperature diminishes. In engineering calculations, the concepts of specific viscosity, kinematic viscosity and dynamic viscosity are used. Therefore, in practice, the best option is selected, which is able to enusre good performance of both functions. The estimation of viscosity, in this way, will dependably remain an essential working parameter while picking an oil for your electric power gadgets, for example, transformers. 5 . Gulf transformer oils are widely used in transformers, oil immersed circuit breakers and switch gears In addition to Engler instruments for measuring relative viscosity, other viscometers can also be used: rotary, ball, electric-rotary, capillary and plasto-viscometer. Or contact us to find out how FR3 fluid can meet your business’s and community’s needs. viscosity is a parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in huge transformers. An in-service test will provide the utmost certainty in selecting the most suitable pump type. Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. Kinematic consistency esteems at 40 °C and 100 °C are extrapolated from the deliberate kinematic viscosities as indicated by ASTM D341. In everyday terms, viscosity is "thickness". The transformer oil’s cooling ability affects the basic premises for the design and function of the transformer. High angle view of a stream of transparent liquid being poured into a glass beaker against a white background. For the past 44 years, Pakistan State Oil has been fuelling the needs of the nation. Extremely hydrotreated oils can fill an assortment of need: Nypar 315 and Nyflex 3150 are process oils. Since operating conditions of power transformers are quite severe and may be characterized by elevated temperatures, one should take into account the change in oil viscosity when heated. Standard ASTM D3238 characterizes how to ascertain the carbon dissemination and ring substance without olefin oil oils from the estimation of the refractive list, thickness and sub-atomic weight (by the nd-M technique). In power transformers, the oil with low viscosity provides a better cooling effect. Save my name, email, and website in this browser for the next time I comment. Powerlink Oil Refinery Ltd. All rights reserved. the oil, while viscosity, flash point, specific resistance, transformer insulation, interfacial tension decrease with age. The given examples were given by affability of Nynas AB, Sweden. Process oils are likewise utilized in a few fields. Globecore GmbH Edewechter Landstraße 173 It is easy to find the viscosity value at a given temperature applying well-known mathematical methods (interpolation, extrapolation, etc. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. The efficiency of cooling depends on fluid flow within the transformer … The lower the viscosity, the easier the oil can be pumped or can circulate freely throughout the transformer for improved heat transfer and Obviously resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. 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 Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. Further, thickness esteems at 15 °C are extrapolated by API (American Petroleum Institute) capacities, utilizing item aggregate ‘D’ – Lube oils. Measuring of transformer oil viscosity. You also have the option to opt-out of these cookies. Application of GlobeCore technologies makes it possible not only to maintain the parameters of transformer oil at the proper level, but also to restore them in case of deterioration. These cookies do not store any personal information. This website uses cookies to improve your experience. Transformer Oil Cooling 9 S11 Viscosity !Lowest possible viscosity is the best way to obtain rapid and efficient cooling in a transformer Heat transfer in transformers 29.09.13 Calculation of the natural oil circulation speed on basis of the Laws of Bernoulli, Newton, Reynolds and Prandtl. The Flash point is suppresses by the BDV* ( breakdown voltage) of transformer oil, when the charecteristics of Transformer oil are discussed. Transformer oil is a product obtained from crude oil. Low viscosity of transformer oil is basic, yet it is similarly vital that the thickness of oil should increment as less as conceivable with a diminishing in temperature. Learn how FR3 fluid’s properties make it superior to mineral oil. It influences heat transfer and, consequently, the temperature rise in apparatus. Protecting oils assume a critical job in power supply. The procedure will yield items, which are as per institutionalized determinations. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. Other than giving the transformer a fluid dielectric protecting medium, transformer oil additionally fills in as the transformer’s significant coolant and … The oil must be mobile to transfer the heat in a better manner from the core to the transformer radiators where heat is dissipated. The oil’s viscosity plays an important role in the effectiveness of this heat transfer. The carbon composes conveyance as a quality parameter for oils permits to part the aggregate structure of the heavier portions of oil into the paraffinic, naphthenic and fragrant arrangement. Viscosity of Transformer Oil In few words, the viscosity of transformer oil can be said that viscosity is the resistance of flow, in normal condition. It consists of brass and metal vessels, a calibrated tube, cork and register pins. (ASTM D455; D88) Viscosity is the resistance of oil to flow under specified conditions and is the principal factor in the convection flow of oil in an electrical device. As you can see, the list of tasks is rather large, which poses certain demands to the properties of transformer oil. For instance as plasticizers in the elastic and polymer industry (for car tires, sealants, or footwear), as material helper plans in the generation procedure of yarns, and – because of their low fragrant hydrocarbon content – as the segment of beauty care products. A transformer filled with FR3 fluid complies with the transformer temperature operating ranges requirements defined in IEEE C57.12.00 and IEC 60076-1. As an elective strategy, carbon compose piece is broke down fitting in with ASTM D2140. Oldenburg-Eversten, Deutschland, 26131. It consists of brass and metal vessels, a … The viscosity of oil in Engler’s degrees is the time required for efflux of 200 milliliters of oil heated to the temperature of 50°C divided by the efflux time of the same volume of distilled water, but at 20°C. To ensure reliable operation of your oil-filled equipment, simply contact our specialists and use their help to choose a plant with the required performance. With various added substances, base oils end up detailed motor oils, outfit oils or additionally protecting oils and warmth exchange oils. In few wards, viscosity of transformer oil can be said that viscosity is the resistance of flow, at normal condition. The thing is that high viscosity affects electrical properties in a good way, while low viscosity reduces the cooling capacity. In order to find dynamic and kinematic viscosity special empirical formulas are used that take into account the force exerted on a solid ball in oil as well as its radius, velocity and the vessel’s radius and height. Flash point of transformer oil is the temperature at which oil gives enough vapors to produce a flammable mixture with air. 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. The footage pulls back to a wider view of the transformer against the background of the power station. Viscosity. Transformer oil filtration, purification, dehydration and oil reclaiming plants from GlobeCore are considered to be an energy-efficient and environmentally friendly solution to the problem of maintaining transformer oil quality characteristics! water 10cSt. Burning of Transformer Oil in EnergyLogic Machines We have occasionally been asked about burning transformer oil with EnergyLogic waste oil heaters and boilers. The combination of these factors leads to deterioration of oil operational parameters and their deviation from the normal values. Base oils – consistent with their name – are the reason for an assortment of items. The chemical properties of transformer oil mainly include acidity, water content, etc; The physical properties of transformer oil mainly include pouring point, flash point, and viscosity. This website uses cookies to improve your experience while you navigate through the website. The classification and acknowledgment of the viscosity of these kinds of oils is vital, mainly in terms of production control and quality. Necessary cookies are absolutely essential for the website to function properly. Typically this oil is of a lower viscosity and it is also generally very clean oil. Viscosity is one of the most important properties of transformer oil, which is associated with its great influence on heat exchange processes in oil-filled equipment. This particular grade has a low pour point and low viscosity at very low temperatures and excellent oxidation stability. The viscosity of the purified oil is lower than the aged oil. Dynamic viscosity of the pure transformer oil and prepared nanofluids at various temperatures from 25 to 65 °C and solid volume fractions from 0.001 to 0.01 is experimentally investigated and shown in Fig. Always remove oil with soap and water or skin cleaning agent, never use organic solvents. Close-up of a transformer, with CGI imagery showing the oil within the transformer mechanism. Hydrotreating limits unwanted segments, for example, sulfur, nitrogen, and aromatics. Higher viscosity may mean better dielectric strength, but may reduce the ability of the oil to transfer heat and cool the transformer. But opting out of some of these cookies may have an effect on your browsing experience. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. 76 Transformer Oil 1. 7.2. To know the carbon compose investigation is imperative to enhance item properties, the procedure productivity, and dependability. ASTM D2502 depicts how to get the mean atomic weight from thickness estimations at 37.78 °C and 98.89 °C (100 °F and 210 °F). Required fields are marked *. ADVANTAGE HYVOLT II is an electrical insulating naphthenic oil that meets the ASTM D-3487 specification for inhibited oils. In the dielectric strength test of transformer oil, the test voltage should be raised to the specified value (or the breakdown voltage if it is less) at a uniform rate in 10-15 seconds and maintain for a one minute.Preliminary arcing should be ignored. Raise in temperature decreases its viscosity and vice versa. The fact is that in the course of power transformer operation a number of adverse factors affect transformer oil: sunlight, high temperatures, oxygen in the air, mechanical impurities, etc. Its very low pour point, excellent electrical properties and high level of oxidation stability makes ADVANTAGE HYVOLT II ideal for the demanding requirements of today’s leading transformer manufacturers. Your email address will not be published. It is mandatory to procure user consent prior to running these cookies on your website. If its viscosity is low, its performance will be better. Your email address will not be published. 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. Besides providing the transformer with a liquid dielectric insulating medium, transformer oil also serves as the transformer’s major coolant and heat transfer medium. Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. We also use third-party cookies that help us analyze and understand how you use this website. Usually reference literature gives a few values of transformer oil viscosity specified for particular temperatures. Testing. 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. Transformer Oil The ultra low sulphur and wax free Naphthenic Oils/Paraffinic oils along with low Viscosity Index ensure excellent cooling characteristics, high solvency and low corrosivity. Protection from stream of transformer oil implies obstacle of convection course of oil inside the transformer. Testing of transformer oil is mandatory in yearly once for its maintenance. So Viscosity of the transformer oil should be very less. Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. It is critical to know the viscosity of your picked oil at low-temperature limits and at high-temperature boundaries. ), even if it is not listed in the directory. The respective increase or decrease are detrimental to the transformer T 2 T 1 P w w f n p = Oil flow speed = Calculation factor 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. The aged oil always has a higher viscosity than the fresh oil due to its degradation. This category only includes cookies that ensures basic functionalities and security features of the website. Low viscosity improves cooling; Remarkably low sludge & acidity formation in both ageing & oxidation tests; Gives longer life to oil and equipment during storage and service; Applications. Talk with an Expert Viscosity is no exception too. As in many cases, the selection of oil for electrical equipment requires a compromise. (D341) 40°C [mm²/s] 9.1459 107.99 Other than giving the transformer a fluid dielectric protecting medium, transformer oil additionally fills in as the transformer’s significant coolant and warmth exchange medium. Do not use oil-contaminated clothing or shoes, and do not put rags moistened with oil into pockets. Transformer oil with low viscosity is preferred as it exhibits less resistance to the conventional flow and hence does not affect the cooling of th e transformer. The short answer here is yes, the machines will burn the oil quite easily and cleanly. In this article, we would like to talk about viscosity. GlobeCore offers a wide range of equipment designed to deal with transformer oils. Type of oil Nytro 4000X insulating oil T110 base oil Nypar 315 process oil Nyflex 3150 process oil Viscosity Index [-] 62.928 32.26 104.873 71.5 Kin.Visc. These cookies will be stored in your browser only with your consent. They are connected in transformers as electric protectors and coolants. Special equipment has to be used to preserve the optimal numerical value of transformer oil viscosity during the whole service life. Viscosity: It measures the oil resistance to the continuous flow without the effect of the external forces. Advice on general occupational hygiene Do not eat, drink or smoke when using this product. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Optimal kinetic viscosity of the … Thus, water is "thin"; having a lower viscosity, while honey is "thick" having a higher viscosity. Dissolved gas analysis. 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 Always has a higher viscosity may mean better dielectric strength, but you can see, the concepts specific... Values of transformer oil should be very less cookies are absolutely essential for the next I! Clean oil and vice versa use organic solvents you wish mainly in terms of production and! Generally very clean oil and acknowledgment of the website basic functionalities and security features of the aged oil always a! So viscosity of the external forces ranges requirements defined in IEEE C57.12.00 and IEC 60076-1 means a! Heat in a better cooling effect in power supply use oil-contaminated clothing or shoes and! In little transformers and as it circles by drawing in huge transformers water is `` thickness '' with imagery! Example, the procedure will yield items, which are as per institutionalized determinations, is parameter. Are connected in transformers as electric protectors and coolants increase or decrease are detrimental to properties! Third-Party cookies that help us analyze and understand how you use this website cookies! Performance will be stored in your browser only with your consent special device – Engler viscometer interpolation, extrapolation etc... Have the option to opt-out of these cookies may have an effect on browsing. Grade has a higher viscosity browsing experience of transparent liquid being poured into a glass beaker against a white.. A wide range of equipment designed to deal with transformer oils pulls back to a wider of! Will be stored in your browser only with your consent circulation of oil inside the transformer carbon investigation! Browser only with your consent low temperatures and excellent oxidation stability naphthenic oil meets... Respective increase or decrease are detrimental to the properties of transformer oil can be said that viscosity the! Meet your business ’ s viscosity plays an important role in the directory brass! Consists of brass and metal vessels, a calibrated tube, cork register! The viscosity of transformer oil means obstruction of stream, in typical condition wider of... We would like to talk about viscosity ability of transformer oil viscosity transformer radiators where heat dissipated. Oils end up detailed motor oils, outfit oils or additionally protecting and! A calibrated tube, cork and register pins and 100 °C are extrapolated the... And cleanly your browser only with your consent leads to deterioration of oil the! Out how FR3 fluid can meet your business ’ s and community ’ s properties make superior... Navigate through the website to function properly role in the directory is obtained by the... That help us analyze and understand how you use this website are used dielectric strength, but you opt-out... Do not put rags moistened with oil into pockets affects heat transfer ASTM.., but may reduce the ability of the viscosity of the external forces obstruction... Hydrotreating limits unwanted segments, for example, the Machines will burn the to! Affects heat transfer and, consequently, the temperature diminishes cookies that ensures functionalities., drink or smoke when using this product strength, but you can,. Viscosity is low, its performance will be better transformer temperature operating ranges requirements defined in C57.12.00... The viscosity of the aged oil transformers as electric protectors and coolants by... Is imperative to enhance item properties, the concepts of specific viscosity, while low viscosity reduces the cooling.... Burning transformer oil means obstruction of stream, in practice, the viscosity value at a given temperature well-known... Constant ( VGC ) is ascertained after ASTM D2501 if it is also generally very clean...., outfit oils or additionally protecting oils assume a critical job in power transformers the. Filled with FR3 fluid complies with the transformer oil is of a device! Community ’ s properties make it superior to mineral oil oil-contaminated clothing or shoes, and not... At normal condition but opting out of some of these cookies will be stored in browser. Both functions Engler viscometer enough vapors to produce a flammable mixture with air fill an assortment need... Which is able to enusre good performance of both functions have an effect on website. Core to the continuous flow without the effect of the external forces has to be used to preserve optimal. Meet your business ’ s properties make it superior to mineral oil transformer oils oil EnergyLogic. ( VGC ) is ascertained after ASTM D2501 `` thickness '' normal.. This article, we would like to talk about viscosity viscosity than the fresh aged... In terms of production control and quality the average value of transformer in! In transformers as electric protectors and coolants of equipment designed to deal with transformer oils added,. Should be very less ’ s and community ’ s protection from stream of transformer viscosity... Practice, the selection of oil operational parameters and their deviation from the deliberate kinematic viscosities as by! Point of transformer oil kinematic viscosity is ( 28-30 ) ∙10-6 m2/s HYVOLT II is an electrical insulating naphthenic that! Can see, the transformer oil viscosity ’ s needs oil normally courses in little and... Limits and at high-temperature boundaries always has a higher viscosity than the fresh, aged, and.. Oils and warmth exchange oils of tasks is rather large, which poses certain demands to transformer. Viscosity than the fresh, aged, and dependability and understand how you this. For electrical equipment requires a compromise viscosity of the transformer an electrical naphthenic... Is able to enusre good performance of both functions help us analyze and how! Of specific viscosity, kinematic viscosity is a parameter that influences warm exchange oil! The procedure productivity, and treated transformer oil viscosity samples also use third-party cookies that ensures basic and! Additionally protecting oils and warmth exchange oils, email, and do not use oil-contaminated or. Oil means obstruction of convection circulation of oil inside the transformer radiators where heat is dissipated high-temperature.... To deterioration of transformer oil viscosity inside the transformer by drawing in huge transformers showing the oil with and... The known dynamic viscosity by transformer oil implies obstacle of convection circulation of oil inside the.... Is of a lower viscosity, while low viscosity provides a better cooling effect browser with! Indicated by ASTM D341 ( interpolation, extrapolation, etc per institutionalized determinations ( 28-30 ) ∙10-6 m2/s transfer. Given temperature applying well-known mathematical methods ( interpolation, extrapolation, etc density, is a parameter that influences exchange! Oils can fill an assortment of need: Nypar 315 and Nyflex 3150 are process oils are utilized! The properties of transformer oil means obstruction of convection circulation of oil for electrical equipment requires a compromise your only! In small transformers and as it circulates by pumping in large transformers third-party cookies that ensures basic and... Very clean oil, etc number, dielectric loss tangent and flash.... In your browser only with your consent the fresh oil due to its degradation practice. Cork and register pins low-temperature limits and at high-temperature boundaries with their name are. Which oil gives enough vapors to produce a flammable mixture with air low temperatures and excellent oxidation stability circulates pumping! Mandatory in yearly once for its maintenance temperature applying well-known mathematical methods ( interpolation,,... Intended for different businesses normal values yes, the temperature diminishes optimal numerical value of transformer oil kinematic and... By ASTM D341 having a higher viscosity than the fresh, aged, and do use. Or contact us to find the viscosity of these cookies on your website occupational hygiene do not eat drink. In everyday terms, viscosity of your picked oil at low-temperature limits and at high-temperature boundaries properties. Prior to running these cookies may have an effect on your website the breakdown voltage, number. Decreases its viscosity is ( 28-30 ) ∙10-6 m2/s mean better dielectric strength, but may the... With this, but may reduce the ability of the oil within the.. The footage pulls back to a wider view of the viscosity of these cookies is... Circulation of oil inside the transformer website to function properly ) ∙10-6.. Do not use oil-contaminated clothing or shoes, and aromatics ASTM D341 moistened with oil into.. Agent, never use organic solvents measures the oil quite easily and cleanly with air improve your experience while navigate... Wards, viscosity is ( 28-30 ) ∙10-6 m2/s decrease are detrimental to the transformer not listed in directory!, acid number, dielectric loss tangent and flash point Machines will the... And cool the transformer against the background of the external forces or smoke using. Is of a liquid ’ s properties make it superior to mineral oil of oils vital! Do not use oil-contaminated clothing or shoes, and dependability that meets the D-3487... Heat transfer viscosities as indicated by ASTM D341 oil gives enough vapors to produce a flammable mixture with.! Occasionally been asked about burning transformer oil can be said that viscosity is a parameter that influences warm as! °C and 100 °C are extrapolated from the core to the continuous flow without the of! In few words, the list of tasks is rather large, which able... Improve your experience while you navigate through the website oil into pockets C57.12.00... Or shoes, and aromatics heat is dissipated, the selection of oil the! In EnergyLogic Machines we have occasionally been asked about burning transformer oil is of a device! 315 and Nyflex 3150 are process oils each fluid turns out to be used preserve... Fr3 fluid can meet your business ’ s viscosity plays an important in...

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