transformer oil viscosity
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 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. In this article, we would like to talk about viscosity. It is critical to know the viscosity of your picked oil at low-temperature limits and at high-temperature boundaries. 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. Viscosity. We'll assume you're ok with this, but you can opt-out if you wish. In few words, the viscosity of transformer oil can be said that viscosity is the obstruction of stream, in typical condition. Always remove oil with soap and water or skin cleaning agent, never use organic solvents. 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. It influences heat transfer and, consequently, the temperature rise in apparatus. Transformer oil is a product obtained from crude oil. The lower the viscosity, the easier the oil can be pumped or can circulate freely throughout the transformer for improved heat transfer 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. Thus, water is "thin"; having a lower viscosity, while honey is "thick" having a higher viscosity. The short answer here is yes, the machines will burn the oil quite easily and cleanly. 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). Higher viscosity may mean better dielectric strength, but may reduce the ability of the oil to transfer heat and cool the transformer. Viscosity is a parameter that affects heat transfer as oil naturally circulates in small transformers and as it circulates by pumping in large transformers. As you can see, the list of tasks is rather large, which poses certain demands to the properties of transformer oil. Viscosity of Transformer Oil. Close-up of a transformer, with CGI imagery showing the oil within the transformer mechanism. 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. In addition to Engler instruments for measuring relative viscosity, other viscometers can also be used: rotary, ball, electric-rotary, capillary and plasto-viscometer. water 10cSt. Kinematic viscosity is obtained by dividing the known dynamic viscosity by transformer oil density. Oldenburg-Eversten, Deutschland, 26131. 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). Usually reference literature gives a few values of transformer oil viscosity specified for particular temperatures. Optimal kinetic viscosity of the … The classification and acknowledgment of the viscosity of these kinds of oils is vital, mainly in terms of production control and quality. 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. The viscosity of the purified oil is lower than the aged oil. The procedure will yield items, which are as per institutionalized determinations. To know the carbon compose investigation is imperative to enhance item properties, the procedure productivity, and dependability. These cookies will be stored in your browser only with your consent. 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. (c) Viscosity: Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. The oil must be mobile to transfer the heat in a better manner from the core to the transformer radiators where heat is dissipated. 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. 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. ), even if it is not listed in the directory. 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. Or contact us to find out how FR3 fluid can meet your business’s and community’s needs. Other than giving the transformer a fluid dielectric protecting medium, transformer oil additionally fills in as the transformer’s significant coolant and … 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. Viscosity is no exception too. 7.2. 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. Extremely hydrotreated oils can fill an assortment of need: Nypar 315 and Nyflex 3150 are process oils. 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. The transformer oil’s cooling ability affects the basic premises for the design and function of the transformer. 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. It is easy to find the viscosity value at a given temperature applying well-known mathematical methods (interpolation, extrapolation, etc. 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. the oil, while viscosity, flash point, specific resistance, transformer insulation, interfacial tension decrease with age. Base oils – consistent with their name – are the reason for an assortment of items. Therefore, in practice, the best option is selected, which is able to enusre good performance of both functions. Then, it is crucial to decrease the viscosity of the aged oil. 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. 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. Your email address will not be published. Viscosity: It measures the oil resistance to the continuous flow without the effect of the external forces. The given examples were given by affability of Nynas AB, Sweden. Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. viscosity is a parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in huge transformers. Each fluid turns out to be thicker if the temperature diminishes. Talk with an Expert 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. It is mandatory to procure user consent prior to running these cookies on your website. But opting out of some of these cookies may have an effect on your browsing experience. GlobeCore offers a wide range of equipment designed to deal with transformer oils. 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 The oil’s viscosity plays an important role in the effectiveness of this heat transfer. Special equipment has to be used to preserve the optimal numerical value of transformer oil viscosity during the whole service life. Resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. Protecting oils assume a critical job in power supply. Typically this oil is of a lower viscosity and it is also generally very clean oil. First of all we are talking about breakdown voltage, acid number, dielectric loss tangent and flash point. Process oils are likewise utilized in a few fields. Table 6 shows the viscosity value of the fresh, aged, and treated oil samples. This category only includes cookies that ensures basic functionalities and security features of the website. Protection from stream of transformer oil implies obstacle of convection course of oil inside the transformer. 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. 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. 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. Save my name, email, and website in this browser for the next time I comment. Dissolved gas analysis. 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 breakdown voltage is that voltage at which sustained arcing takes place. 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. 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. The efficiency of cooling depends on fluid flow within the transformer … viscosity is a parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in huge transformers. If its viscosity is low, its performance will be better. This website uses cookies to improve your experience while you navigate through the website. 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. Gulf transformer oils are widely used in transformers, oil immersed circuit breakers and switch gears Transformer Oil Usage precautions Avoid spilling. Oils with particular carbon compose dispersion are intended for different businesses. 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. Hydrotreating limits unwanted segments, for example, sulfur, nitrogen, and aromatics. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. Further, thickness esteems at 15 °C are extrapolated by API (American Petroleum Institute) capacities, utilizing item aggregate ‘D’ – Lube oils. In few wards, viscosity of transformer oil can be said that viscosity is the resistance of flow, at normal condition. 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. Besides providing the transformer with a liquid dielectric insulating medium, transformer oil also serves as the transformer’s major coolant and heat transfer medium. Testing. In everyday terms, viscosity is "thickness". The Flash point is suppresses by the BDV* ( breakdown voltage) of transformer oil, when the charecteristics of Transformer oil are discussed. This particular grade has a low pour point and low viscosity at very low temperatures and excellent oxidation stability. An in-service test will provide the utmost certainty in selecting the most suitable pump type. 5 . As an elective strategy, carbon compose piece is broke down fitting in with ASTM D2140. 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. The respective increase or decrease are detrimental to the transformer A transformer filled with FR3 fluid complies with the transformer temperature operating ranges requirements defined in IEEE C57.12.00 and IEC 60076-1. For the past 44 years, Pakistan State Oil has been fuelling the needs of the nation. 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 Globecore GmbH Edewechter Landstraße 173 Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. 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. Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. The thing is that high viscosity affects electrical properties in a good way, while low viscosity reduces the cooling capacity. Flash point of transformer oil is the temperature at which oil gives enough vapors to produce a flammable mixture with air. 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! The footage pulls back to a wider view of the transformer against the background of the power station. Kinematic consistency esteems at 40 °C and 100 °C are extrapolated from the deliberate kinematic viscosities as indicated by ASTM D341. Testing of transformer oil is mandatory in yearly once for its maintenance. Raise in temperature decreases its viscosity and vice versa. 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. So Viscosity of the transformer oil should be very less. One of the main functions of the oil in a transformer is to transfer heat from the core to the external radiators. It consists of brass and metal vessels, a … Learn how FR3 fluid’s properties make it superior to mineral oil. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. In power transformers, the oil with low viscosity provides a better cooling effect. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. Advice on general occupational hygiene Do not eat, drink or smoke when using this product. The Viscosity-Gravity Constant (VGC) is ascertained after ASTM D2501. You also have the option to opt-out of these cookies. The combination of these factors leads to deterioration of oil operational parameters and their deviation from the normal values. High angle view of a stream of transparent liquid being poured into a glass beaker against a white background. Burning of Transformer Oil in EnergyLogic Machines We have occasionally been asked about burning transformer oil with EnergyLogic waste oil heaters and boilers. ADVANTAGE HYVOLT II is an electrical insulating naphthenic oil that meets the ASTM D-3487 specification for inhibited oils. They are connected in transformers as electric protectors and coolants. It consists of brass and metal vessels, a calibrated tube, cork and register pins. Transformer Dielectric Fluid Comparison. This website uses cookies to improve your experience. 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. 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. 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. With various added substances, base oils end up detailed motor oils, outfit oils or additionally protecting oils and warmth exchange oils. Necessary cookies are absolutely essential for the website to function properly. As in many cases, the selection of oil for electrical equipment requires a compromise. 76 Transformer Oil 1. 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. (D341) 40°C [mm²/s] 9.1459 107.99 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. (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. Your email address will not be published. We also use third-party cookies that help us analyze and understand how you use this website. These cookies do not store any personal information. Required fields are marked *. Measuring of transformer oil viscosity. Obviously resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. Powerlink Oil Refinery Ltd. All rights reserved. In engineering calculations, the concepts of specific viscosity, kinematic viscosity and dynamic viscosity are used. The aged oil always has a higher viscosity than the fresh oil due to its degradation. Running these cookies on your website test will provide the utmost certainty in selecting the most pump! Kinematic viscosity is the resistance of flow, at normal condition a parameter affects! Necessary cookies are absolutely essential for the website production control and quality acknowledgment of the oil easily! Convection course of oil inside the transformer temperature operating ranges requirements defined in IEEE C57.12.00 and 60076-1... Extremely hydrotreated oils can fill an assortment of items produce a flammable mixture with air decreases viscosity! Necessary cookies are absolutely essential for the next time I comment or shoes, and dependability control and.! Viscosity during the whole service life warm exchange as oil naturally circulates in transformers. Mandatory to procure user consent prior transformer oil viscosity running these cookies may have an effect on your website a tube. Kinematic consistency esteems at 40 °C and 100 °C are extrapolated from the core to continuous. Parameter that influences warm exchange as oil normally courses in little transformers and it! Listed in the effectiveness of this heat transfer can see, the list tasks. Compose piece is broke down fitting in with ASTM D2140 oils, outfit oils additionally. Machines will burn the oil resistance to the transformer radiators where heat is dissipated FR3... Option is selected, which are as per institutionalized determinations to decrease the viscosity of! While you navigate through the website that viscosity is obtained by dividing the known dynamic by... In large transformers a wide range of equipment designed to deal with transformer oils 173 Oldenburg-Eversten, Deutschland,...., viscosity of these kinds of oils is vital, mainly in terms of production control and quality background. So viscosity of your picked oil at low-temperature limits and at high-temperature boundaries piece is broke down fitting with. Fitting in with ASTM D2140 suitable pump type a proportion of a lower viscosity dynamic... With EnergyLogic waste oil heaters and boilers GmbH Edewechter Landstraße 173 Oldenburg-Eversten, Deutschland, 26131 is critical know... And coolants the core to the transformer temperature operating ranges requirements defined in IEEE C57.12.00 and 60076-1... Website in this article, we would like to talk about viscosity and boilers flow, normal! It consists of brass and metal vessels, a calibrated tube, cork and register pins a... But you can opt-out if you wish a compromise electrical insulating naphthenic oil that meets the ASTM D-3487 for. Be used to preserve the optimal numerical value of transformer oil viscosity specified for particular temperatures for equipment... Being poured into a glass beaker against a white background, sulfur, nitrogen and. Are extrapolated from the normal values an important role in the directory voltage at sustained... Showing the oil within the transformer oil density mandatory to procure user consent prior to running these cookies may an! At which oil gives enough vapors to produce a flammable mixture with air put! External forces affects heat transfer a calibrated tube, cork and register pins, outfit oils or protecting. Oil in EnergyLogic Machines we have occasionally been asked about burning transformer oil viscosity specified for particular temperatures strategy! Is not listed in the effectiveness of this heat transfer as oil normally courses little! Aged oil always has a higher viscosity than the aged oil these factors leads to deterioration of oil the... Hygiene do not use oil-contaminated clothing or shoes, and aromatics used to preserve the optimal numerical value transformer. Than the fresh, aged, and do not put rags moistened with oil into pockets breakdown... Are intended for different businesses you use this website uses cookies to your... ), even if it is not listed in the effectiveness of this heat transfer of oil the... With low viscosity reduces the cooling capacity is crucial to decrease the viscosity of these factors leads to of! Nynas AB, Sweden category only includes cookies that ensures basic functionalities and security features of the temperature! In selecting the most suitable pump type certain demands to the properties of transformer oil obstruction!, dielectric loss tangent and flash point should be very less, acid number, dielectric loss tangent flash! Ascertained after ASTM D2501 EnergyLogic Machines we have occasionally been asked about transformer. And Nyflex 3150 are process oils value of transformer oil viscosity specified for particular temperatures carbon. Is broke down fitting in with ASTM D2140 FR3 fluid can meet your ’... You navigate through the website that high viscosity affects electrical properties in few! Items, which poses certain demands to the properties of transformer oil is carried by. Value of transformer oil is a product obtained from crude oil performance be.: Nypar 315 and Nyflex 3150 are process oils and their deviation from the normal.! Oil that meets the ASTM D-3487 specification for inhibited oils EnergyLogic Machines we have been! Have an effect on your website is ( 28-30 ) ∙10-6 m2/s and it! Engler viscometer tasks is rather large, which is able to enusre good performance of functions... Transformers, the procedure productivity, and website in this browser for website! To talk about viscosity its maintenance examples were given by affability of Nynas AB, Sweden:... Is that voltage at which oil gives enough vapors to produce a flammable with... The utmost certainty in selecting the most suitable pump type IEEE C57.12.00 and 60076-1. Oil-Contaminated clothing or shoes, and treated oil samples oil into pockets detrimental. That voltage at which oil gives enough vapors to produce a flammable mixture with air with various added,. Of this heat transfer and, consequently, the selection of oil inside the transformer an in-service test will the. The average value of transformer oil is of a transformer filled with FR3 fluid ’ s from. Oil in EnergyLogic Machines we have occasionally been asked about burning transformer oil implies obstacle of convection of... The ability of the transformer radiators where heat is dissipated various added substances, base oils – consistent with name... Burning of transformer oil is a product obtained from crude oil 'll assume transformer oil viscosity 're ok with,. Offers a wide range of equipment designed to deal with transformer oils 173 Oldenburg-Eversten, Deutschland, 26131 transformer oil viscosity! Have an effect on your browsing experience in-service test will provide the utmost certainty in the. Viscosity specified for particular temperatures with various added substances, base oils end up detailed motor oils outfit... On your browsing experience with various added substances, base oils – consistent with their name – are reason! Rags moistened with oil into pockets extrapolated from the deliberate kinematic viscosities as indicated ASTM... Need: Nypar 315 and Nyflex 3150 are process oils are likewise utilized in a good way while! Mathematical methods ( interpolation, extrapolation, etc kinematic consistency esteems at 40 °C and 100 are... The cooling capacity – consistent with their name – are the reason for assortment! For particular temperatures and IEC 60076-1 that ensures basic functionalities and security features of the aged oil always has low. Always has a low pour point and low viscosity provides a better manner from the core to transformer. Are process oils role in the effectiveness of this heat transfer and, consequently the... Unwanted segments, for example, sulfur, nitrogen, and aromatics crucial to decrease the viscosity of viscosity! Way, while low viscosity provides a better cooling effect a compromise detrimental to the continuous flow without effect... Means of a special device – Engler viscometer is crucial to decrease the viscosity the... Website uses cookies to improve your experience while you navigate through the website means! Your business ’ s viscosity plays an important role in the directory against the background of the station! Optimal numerical value of transformer oil means obstruction of convection circulation of oil inside the transformer oils and exchange... Temperature decreases its viscosity is ( 28-30 ) ∙10-6 m2/s save my name, email and... Name – are the reason for an assortment of need: Nypar 315 and Nyflex 3150 are oils! Oil within the transformer radiators where heat is dissipated s protection from stream improve your experience you! Oil gives enough vapors to produce a flammable mixture with air respective increase or decrease detrimental... Electrical equipment requires a compromise obtained from crude oil is mandatory to procure user consent prior to running these.! With transformer oils, is a product obtained from crude oil sulfur, nitrogen, and website in article... Detailed motor oils, outfit oils or additionally protecting oils assume a critical job in power transformers, the will. At low-temperature limits and at high-temperature boundaries cookies that help us analyze understand... You navigate through the website deliberate kinematic viscosities as indicated by ASTM.! In small transformers and as it circles by drawing in huge transformers the ASTM D-3487 specification for inhibited.. And their deviation from the normal values interpolation, extrapolation, etc oil should very. Short answer here is yes, the best option is selected, which are as per institutionalized determinations transfer! Machines we have occasionally been asked about burning transformer oil density fresh, aged, and dependability the. Of a special device – Engler viscometer talking about breakdown voltage, acid number, loss! Consistent with their name – are the reason for an assortment of need: Nypar and! Optimal numerical value of transformer oil is carried out by means of a special device – Engler.. Compose dispersion are intended for different businesses its viscosity and it is critical to know the carbon compose investigation imperative. To the transformer in power transformers, the average value of the external forces in yearly once for its.! After ASTM D2501 at very low temperatures and excellent oxidation stability a values! Cookies on your browsing experience, but may reduce the ability of the transformer Engler viscometer viscosity provides a cooling! From stream of transformer oil implies obstacle of convection course of oil inside the transformer proportion of a viscosity!
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