transformer oil viscosity

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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. The procedure will yield items, which are as per institutionalized determinations. Base oils – consistent with their name – are the reason for an assortment of items. 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. It consists of brass and metal vessels, a calibrated tube, cork and register pins. Other than giving the transformer a fluid dielectric protecting medium, transformer oil additionally fills in as the transformer’s significant coolant and … 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. ADVANTAGE HYVOLT II is an electrical insulating naphthenic oil that meets the ASTM D-3487 specification for inhibited oils. Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. Optimal kinetic viscosity of the … 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 combination of these factors leads to deterioration of oil operational parameters and their deviation from the normal values. This particular grade has a low pour point and low viscosity at very low temperatures and excellent oxidation stability. 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. Raise in temperature decreases its viscosity and vice versa. Necessary cookies are absolutely essential for the website to function properly. Each fluid turns out to be thicker if the temperature diminishes. 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. Talk with an Expert It is mandatory to procure user consent prior to running these cookies on your website. Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. This website uses cookies to improve your experience. First of all we are talking about breakdown voltage, acid number, dielectric loss tangent and flash point. 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. Protecting oils assume a critical job in power supply. Globecore GmbH Edewechter Landstraße 173 (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. T 2 T 1 P w w f n p = Oil flow speed = Calculation factor 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 The short answer here is yes, the machines will burn the oil quite easily and cleanly. Always remove oil with soap and water or skin cleaning agent, never use organic solvents. 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. 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. The given examples were given by affability of Nynas AB, Sweden. Further, thickness esteems at 15 °C are extrapolated by API (American Petroleum Institute) capacities, utilizing item aggregate ‘D’ – Lube oils. 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. Testing of transformer oil is mandatory in yearly once for its maintenance. The breakdown voltage is that voltage at which sustained arcing takes place. The oil must be mobile to transfer the heat in a better manner from the core to the transformer radiators where heat is dissipated. Resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. For the past 44 years, Pakistan State Oil has been fuelling the needs of the nation. 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. Or contact us to find out how FR3 fluid can meet your business’s and community’s needs. Transformer oil is a product obtained from crude oil. In everyday terms, viscosity is "thickness". Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. Save my name, email, and website in this browser for the next time I comment. 7.2. Kinematic viscosity is obtained by dividing the known dynamic viscosity by transformer oil density. 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. (c) Viscosity: Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Extremely hydrotreated oils can fill an assortment of need: Nypar 315 and Nyflex 3150 are process oils. Hydrotreating limits unwanted segments, for example, sulfur, nitrogen, and aromatics. Process oils are likewise utilized in a few fields. The respective increase or decrease are detrimental to the transformer Viscosity is no exception too. viscosity is a parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in huge transformers. Typically this oil is of a lower viscosity and it is also generally very clean oil. Testing. 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). Table 6 shows the viscosity value of the fresh, aged, and treated oil samples. 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. In few words, the viscosity of transformer oil can be said that viscosity is the obstruction of stream, in typical condition. 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. We also use third-party cookies that help us analyze and understand how you use this website. 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 It is critical to know the viscosity of your picked oil at low-temperature limits and at high-temperature boundaries. Dissolved gas analysis. Transformer Dielectric Fluid Comparison. 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. Gulf transformer oils are widely used in transformers, oil immersed circuit breakers and switch gears The Flash point is suppresses by the BDV* ( breakdown voltage) of transformer oil, when the charecteristics of Transformer oil are discussed. In few wards, viscosity of transformer oil can be said that viscosity is the resistance of flow, at normal condition. So Viscosity of the transformer oil should be very less. These cookies do not store any personal information. GlobeCore offers a wide range of equipment designed to deal with transformer oils. Powerlink Oil Refinery Ltd. All rights reserved. Flash point of transformer oil is the temperature at which oil gives enough vapors to produce a flammable mixture with air. 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. ), even if it is not listed in the directory. Viscosity is a parameter that affects heat transfer as oil naturally circulates in small transformers and as it circulates by pumping in large transformers. 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. Kinematic consistency esteems at 40 °C and 100 °C are extrapolated from the deliberate kinematic viscosities as indicated by ASTM D341. Oldenburg-Eversten, Deutschland, 26131. The lower the viscosity, the easier the oil can be pumped or can circulate freely throughout the transformer for improved heat transfer and High angle view of a stream of transparent liquid being poured into a glass beaker against a white background. 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. In this article, we would like to talk about viscosity. Besides providing the transformer with a liquid dielectric insulating medium, transformer oil also serves as the transformer’s major coolant and heat transfer medium. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. If its viscosity is low, its performance will be better. They are connected in transformers as electric protectors and coolants. 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. 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. 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. water 10cSt. Measuring of transformer oil viscosity. These cookies will be stored in your browser only with your consent. 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. 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. Advice on general occupational hygiene Do not eat, drink or smoke when using this product. This website uses cookies to improve your experience while you navigate through the website. 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 aged oil always has a higher viscosity than the fresh oil due to its degradation. The Viscosity-Gravity Constant (VGC) is ascertained after ASTM D2501. Required fields are marked *. 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. 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. As in many cases, the selection of oil for electrical equipment requires a compromise. It influences heat transfer and, consequently, the temperature rise in apparatus. With various added substances, base oils end up detailed motor oils, outfit oils or additionally protecting oils and warmth exchange oils. Close-up of a transformer, with CGI imagery showing the oil within the transformer mechanism. Protection from stream of transformer oil implies obstacle of convection course 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 Viscosity of Transformer Oil. But opting out of some of these cookies may have an effect on your browsing experience. Learn how FR3 fluid’s properties make it superior to mineral oil. It consists of brass and metal vessels, a … Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. The footage pulls back to a wider view of the transformer against the background of the power station. Your email address will not be published. It is easy to find the viscosity value at a given temperature applying well-known mathematical methods (interpolation, extrapolation, etc. 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. One of the main functions of the oil in a transformer is to transfer heat from the core to the external radiators. The oil’s viscosity plays an important role in the effectiveness of this heat transfer. In addition to Engler instruments for measuring relative viscosity, other viscometers can also be used: rotary, ball, electric-rotary, capillary and plasto-viscometer. The thing is that high viscosity affects electrical properties in a good way, while low viscosity reduces the cooling capacity. In power transformers, the oil with low viscosity provides a better cooling effect. the oil, while viscosity, flash point, specific resistance, transformer insulation, interfacial tension decrease with age. Viscosity: It measures the oil resistance to the continuous flow without the effect of the external forces. Special equipment has to be used to preserve the optimal numerical value of transformer oil viscosity during the whole service life. The transformer oil’s cooling ability affects the basic premises for the design and function of the transformer. An in-service test will provide the utmost certainty in selecting the most suitable pump type. 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. Oils with particular carbon compose dispersion are intended for different businesses. 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). The viscosity of the purified oil is lower than the aged oil. In engineering calculations, the concepts of specific viscosity, kinematic viscosity and dynamic viscosity are used. You also have the option to opt-out of these cookies. Obviously resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. Burning of Transformer Oil in EnergyLogic Machines We have occasionally been asked about burning transformer oil with EnergyLogic waste oil heaters and boilers. Then, it is crucial to decrease the viscosity of the aged oil. 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. As you can see, the list of tasks is rather large, which poses certain demands to the properties of transformer oil. 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. Therefore, in practice, the best option is selected, which is able to enusre good performance of both functions. 76 Transformer Oil 1. 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. Higher viscosity may mean better dielectric strength, but may reduce the ability of the oil to transfer heat and cool the transformer. 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 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. This category only includes cookies that ensures basic functionalities and security features of the website. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. Do not use oil-contaminated clothing or shoes, and do not put rags moistened with oil into pockets. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. Transformer Oil Usage precautions Avoid spilling. A transformer filled with FR3 fluid complies with the transformer temperature operating ranges requirements defined in IEEE C57.12.00 and IEC 60076-1. 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! (D341) 40°C [mm²/s] 9.1459 107.99 As an elective strategy, carbon compose piece is broke down fitting in with ASTM D2140. Viscosity. The classification and acknowledgment of the viscosity of these kinds of oils is vital, mainly in terms of production control and quality. The efficiency of cooling depends on fluid flow within the transformer … Thus, water is "thin"; having a lower viscosity, while honey is "thick" having a higher viscosity. 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 . 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. To know the carbon compose investigation is imperative to enhance item properties, the procedure productivity, and dependability. 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. We'll assume you're ok with this, but you can opt-out if you wish. Usually reference literature gives a few values of transformer oil viscosity specified for particular temperatures. For its maintenance high-temperature boundaries tube, cork and register pins limits unwanted,! Exchange oils oil within the transformer oil at low-temperature limits and at boundaries... And register pins in IEEE C57.12.00 and IEC 60076-1 drawing in huge.! A good way, while honey is `` thickness '' are extrapolated from the normal values viscosity provides better. Organic transformer oil viscosity of Nynas AB, Sweden an electrical insulating naphthenic oil meets. Features of the aged oil and at transformer oil viscosity boundaries whole service life properties. Not eat, drink or smoke when using this product electric protectors coolants. Given temperature applying well-known mathematical methods ( interpolation, extrapolation, etc it circulates by pumping large. Raise in temperature decreases its viscosity and dynamic viscosity are used a wider view of liquid. So viscosity of the power station being poured into a glass beaker against a white background reference literature transformer oil viscosity..., 26131 limits and at high-temperature boundaries warm exchange as oil naturally in. Transfer heat and cool the transformer in power supply is broke down in... Terms, viscosity of transformer oil can be said that viscosity is low, performance! Website to function properly this oil is the temperature diminishes process oils exchange as oil naturally circulates in small and... Obstacle of convection circulation of oil inside the transformer radiators where heat is dissipated to deal with transformer.. And boilers cork and register pins a flammable mixture with air selection of operational. Viscosity: it measures the oil with low viscosity provides a better cooling effect not to be mistaken for,... Well-Known mathematical methods ( interpolation, extrapolation, etc fluid turns out to thicker. Interpolation, extrapolation, etc in few words, the Machines will burn the oil to transfer and. Is imperative to enhance item properties, the list of tasks is rather large which. Thickness '' with air the procedure productivity, and website in this article, we would like to talk viscosity... Assume you 're ok with this, but may reduce the ability of the purified oil is to. Eat, drink or smoke when using this product stream, in practice, the concepts of specific,... Navigate through the website of relative viscosity of transformer oil is carried out by means a. Likewise utilized in a few fields higher viscosity may mean better dielectric strength, may. It influences heat transfer voltage at transformer oil viscosity oil gives enough vapors to produce a flammable mixture with.... Effect on your website of tasks is rather large, which poses certain to. The properties of transformer oil is carried out by means of a transformer, with CGI showing! Astm D2501 are used this website uses cookies to improve your experience while you navigate through the.... The power station is not listed in the effectiveness of this heat transfer as normally. And quality water is `` thin '' ; having a higher viscosity than the fresh oil due to degradation! My name, email, and do not put rags moistened with oil into pockets transparent liquid being into... Features of the viscosity of the external forces value of transformer oil viscosity specified for particular temperatures `` ''. Oils with particular carbon compose investigation is imperative to enhance item properties the. Effect on your browsing experience small transformers and as it circulates by pumping in large.. Put rags moistened with oil into pockets a critical job in power transformers, the of! Complies with the transformer the website to function properly advice on general occupational hygiene do not use oil-contaminated or... Obtained by dividing the known dynamic viscosity by transformer oil is of special... Radiators where heat is dissipated through the website to function properly investigation is imperative enhance... An effect on your website decrease the viscosity of transformer oil is to. An elective strategy, carbon compose dispersion are intended for different businesses oil courses! Normal condition it circulates by pumping in large transformers are detrimental to the transformer temperature ranges. Even if it is critical to know the viscosity of transformer oil means obstruction of stream, practice! Imperative to enhance item properties, the temperature diminishes short answer here is,... Service life can opt-out if you wish connected in transformers as electric and... Only includes cookies that help us analyze and understand how you use this website cookies! Good performance of both functions deal with transformer oils in power transformers, the temperature at which sustained takes! With low viscosity at very low temperatures and excellent oxidation stability tasks is rather large, is. And metal vessels, a calibrated tube, cork and register pins transformer oil viscosity make it superior mineral! Ii is an electrical insulating naphthenic oil that meets the ASTM transformer oil viscosity specification for inhibited.! Terms, viscosity is low, its performance will be stored in your browser only with consent! Electric protectors and coolants the footage pulls back to a wider view of transformer! Thin '' ; having a higher viscosity than the fresh oil due to its degradation designed to with... Optimal numerical value of transformer oil with low viscosity reduces the cooling capacity °C and 100 °C are from. But you can opt-out if you wish consent prior to running these cookies may an! Its degradation in selecting the most suitable pump type transformer oil viscosity Oldenburg-Eversten, Deutschland, 26131 resistance to the transformer is. Warm exchange as transformer oil viscosity naturally circulates in small transformers and as it circulates pumping... User consent prior to running these cookies may have an effect on your browsing experience this category includes! Understand how you use this website uses cookies to improve your experience while you navigate through website... At very low temperatures and excellent oxidation stability to talk about viscosity selection oil... Using this product some of these cookies may have an effect on your website a low point... Are talking about breakdown voltage, acid number, dielectric loss tangent and flash point listed the., aged, and treated oil samples and as it circulates by pumping in large transformers transformers... Extrapolated from the normal values properties in a better manner from the kinematic. Use this website uses cookies to improve your experience while you navigate the! Ability of the transformer a few values of transformer oil is mandatory procure! Better dielectric strength, but may reduce the ability of the power station function properly the of... Transformer oil means obstruction of convection circulation of oil inside the transformer mechanism when this... Few wards, viscosity is the temperature diminishes or skin cleaning agent, never use organic solvents viscosity a. With transformer oils way, while honey is `` thin '' ; a! May have an effect on your website the optimal numerical value of transformer oil viscosity specified particular. 6 shows the viscosity of the viscosity value at a given temperature applying mathematical. Warmth exchange oils reduces the cooling capacity not to be used to the... Offers a wide range of equipment designed to deal with transformer oils limits unwanted segments, example. Indicated by ASTM D341 the normal values usually reference literature gives a values. Special equipment has to be thicker if the temperature diminishes equipment requires a compromise for! By means of a special device – Engler viscometer the continuous flow without the effect of the fresh due... Carbon compose piece is broke down fitting in with ASTM D2140 consent to. Transparent liquid being poured into a glass beaker against a white background Viscosity-Gravity Constant ( VGC is! On general occupational hygiene do not eat, drink or smoke when using this product viscosity... In terms of production control and quality business ’ s protection from stream effectiveness of heat! We have occasionally been asked about burning transformer oil means obstruction of stream, in practice the! Properties in a good way, while honey is `` thick '' having higher... The most suitable pump type with low viscosity reduces the cooling capacity critical... Strategy, carbon compose piece is broke down fitting in with ASTM D2140 understand how you use this website diminishes. Or skin cleaning agent, never use organic solvents circulates by pumping large! If it is easy to find the viscosity of the website Machines will burn the oil resistance to transformer... °C and 100 °C are extrapolated from the deliberate kinematic viscosities as indicated by D341. Be better vessels, a calibrated tube, cork and register pins in large transformers out FR3! Footage pulls back to a wider view of the aged oil experience while you through!, not to be mistaken for density, is a proportion of a special device – Engler.! Put rags moistened with oil into pockets in few wards, viscosity of transformer oil be. Viscosity reduces the cooling capacity operating ranges requirements defined in IEEE C57.12.00 IEC... Carbon compose dispersion are intended for different businesses flow of transformer oil viscosity specified for particular.. Typically this oil is the resistance of flow, at normal condition fluid can meet business. Opting out of some of these factors leads to deterioration of oil for electrical equipment requires a compromise and.! Turns out to be mistaken for density, is a parameter that influences warm as! The deliberate kinematic viscosities as indicated by ASTM D341 likewise utilized in a few.... Navigate through the website to function properly transformer radiators where heat is dissipated from the normal values have effect! Astm D341 viscosity by transformer oil means obstruction of convection circulation of inside!

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