In engineering calculations, the concepts of specific viscosity, kinematic viscosity and dynamic viscosity are used. 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 is obtained by dividing the known dynamic viscosity by transformer oil density. Optimal kinetic viscosity of the … The footage pulls back to a wider view of the transformer against the background of the power station. 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. 76 Transformer Oil 1. Process oils are likewise utilized in a few fields. 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. Typically this oil is of a lower viscosity and it is also generally very clean oil. Transformer Dielectric Fluid Comparison. Viscosity is a parameter that affects heat transfer as oil naturally circulates in small transformers and as it circulates by pumping in large transformers. 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. 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). First of all we are talking about breakdown voltage, acid number, dielectric loss tangent and flash point. Table 6 shows the viscosity value of the fresh, aged, and treated oil samples. Oils with particular carbon compose dispersion are intended for different businesses. 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. So Viscosity of the transformer oil should be very less. The short answer here is yes, the machines will burn the oil quite easily and cleanly. 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. Each fluid turns out to be thicker if the temperature diminishes. 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. Obviously resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. 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. As an elective strategy, carbon compose piece is broke down fitting in with ASTM D2140. The oil must be mobile to transfer the heat in a better manner from the core to the transformer radiators where heat is dissipated. To know the carbon compose investigation is imperative to enhance item properties, the procedure productivity, and dependability. Protection from stream of transformer oil implies obstacle of convection course of oil inside the transformer. In power transformers, the oil with low viscosity provides a better cooling effect. 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. Viscosity of Transformer Oil. Dissolved gas analysis. 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. 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 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. Oldenburg-Eversten, Deutschland, 26131. As in many cases, the selection of oil for electrical equipment requires a compromise. In this article, we would like to talk about viscosity. An in-service test will provide the utmost certainty in selecting the most suitable pump type. Hydrotreating limits unwanted segments, for example, sulfur, nitrogen, and aromatics. These cookies will be stored in your browser only with your consent. Besides providing the transformer with a liquid dielectric insulating medium, transformer oil also serves as the transformer’s major coolant and heat transfer medium. 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. (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. Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. The lower the viscosity, the easier the oil can be pumped or can circulate freely throughout the transformer for improved heat transfer and Viscosity. 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. You also have the option to opt-out of these cookies. In everyday terms, viscosity is "thickness". We also use third-party cookies that help us analyze and understand how you use this 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. This particular grade has a low pour point and low viscosity at very low temperatures and excellent oxidation stability. 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 Advice on general occupational hygiene Do not eat, drink or smoke when using this product. Necessary cookies are absolutely essential for the website to function properly. 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 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. Testing. 5 . It influences heat transfer and, consequently, the temperature rise in apparatus. It is easy to find the viscosity value at a given temperature applying well-known mathematical methods (interpolation, extrapolation, etc. It is mandatory to procure user consent prior to running these cookies on your website. The given examples were given by affability of Nynas AB, Sweden. Thus, water is "thin"; having a lower viscosity, while honey is "thick" having a higher viscosity. 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. 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. Flash point of transformer oil is the temperature at which oil gives enough vapors to produce a flammable mixture with air. 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. As you can see, the list of tasks is rather large, which poses certain demands to the properties of transformer oil. The respective increase or decrease are detrimental to the transformer 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. Usually reference literature gives a few values of transformer oil viscosity specified for particular temperatures. 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. One of the main functions of the oil in a transformer is to transfer heat from the core to the external radiators. Gulf transformer oils are widely used in transformers, oil immersed circuit breakers and switch gears ADVANTAGE HYVOLT II is an electrical insulating naphthenic oil that meets the ASTM D-3487 specification for inhibited oils. (c) Viscosity: Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Close-up of a transformer, with CGI imagery showing the oil within the transformer mechanism. 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 classification and acknowledgment of the viscosity of these kinds of oils is vital, mainly in terms of production control and quality. The transformer oil’s cooling ability affects the basic premises for the design and function of the transformer. Therefore, in practice, the best option is selected, which is able to enusre good performance of both functions. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. This category only includes cookies that ensures basic functionalities and security features of the website. Your email address will not be published. (D341) 40°C [mm²/s] 9.1459 107.99 For the past 44 years, Pakistan State Oil has been fuelling the needs of the nation. The Viscosity-Gravity Constant (VGC) is ascertained after ASTM D2501. This website uses cookies to improve your experience. They are connected in transformers as electric protectors and coolants. In addition to Engler instruments for measuring relative viscosity, other viscometers can also be used: rotary, ball, electric-rotary, capillary and plasto-viscometer. Transformer Oil Usage precautions Avoid spilling. The Flash point is suppresses by the BDV* ( breakdown voltage) of transformer oil, when the charecteristics of Transformer oil are discussed. Learn how FR3 fluid’s properties make it superior to mineral oil. Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. High angle view of a stream of transparent liquid being poured into a glass beaker against a white background. Transformer oil is a product obtained from crude oil. But opting out of some of these cookies may have an effect on your browsing experience. The thing is that high viscosity affects electrical properties in a good way, while low viscosity reduces the cooling capacity. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. The breakdown voltage is that voltage at which sustained arcing takes place. 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. It consists of brass and metal vessels, a … Viscosity: It measures the oil resistance to the continuous flow without the effect of the external forces. water 10cSt. 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. 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. Talk with an Expert In few wards, viscosity of transformer oil can be said that viscosity is the resistance of flow, at normal condition. If its viscosity is low, its performance will be better. A transformer filled with FR3 fluid complies with the transformer temperature operating ranges requirements defined in IEEE C57.12.00 and IEC 60076-1. Extremely hydrotreated oils can fill an assortment of need: Nypar 315 and Nyflex 3150 are process oils. the oil, while viscosity, flash point, specific resistance, transformer insulation, interfacial tension decrease with age. Your email address will not be published. The efficiency of cooling depends on fluid flow within the transformer … GlobeCore offers a wide range of equipment designed to deal with transformer oils. 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! It consists of brass and metal vessels, a calibrated tube, cork and register pins. 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. Powerlink Oil Refinery Ltd. All rights reserved. These cookies do not store any personal information. 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. Other than giving the transformer a fluid dielectric protecting medium, transformer oil additionally fills in as the transformer’s significant coolant and … 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). 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. viscosity is a parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in huge transformers. Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. The procedure will yield items, which are as per institutionalized determinations. Protecting oils assume a critical job in power supply. The combination of these factors leads to deterioration of oil operational parameters and their deviation from the normal values. 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. Save my name, email, and website in this browser for the next time I comment. This website uses cookies to improve your experience while you navigate through the website. Measuring of transformer oil viscosity. 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. 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. Viscosity is no exception too. T 2 T 1 P w w f n p = Oil flow speed = Calculation factor Testing of transformer oil is mandatory in yearly once for its maintenance. Kinematic consistency esteems at 40 °C and 100 °C are extrapolated from the deliberate kinematic viscosities as indicated by ASTM D341. Required fields are marked *. Or contact us to find out how FR3 fluid can meet your business’s and community’s needs. Resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. 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. The oil’s viscosity plays an important role in the effectiveness of this heat transfer. Further, thickness esteems at 15 °C are extrapolated by API (American Petroleum Institute) capacities, utilizing item aggregate ‘D’ – Lube oils. Globecore GmbH Edewechter Landstraße 173 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. Raise in temperature decreases its viscosity and vice versa. 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. Burning of Transformer Oil in EnergyLogic Machines We have occasionally been asked about burning transformer oil with EnergyLogic waste oil heaters and boilers. In few words, the viscosity of transformer oil can be said that viscosity is the obstruction of stream, in typical condition. Higher viscosity may mean better dielectric strength, but may reduce the ability of the oil to transfer heat and cool the transformer. Base oils – consistent with their name – are the reason for an assortment of items. 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. It is critical to know the viscosity of your picked oil at low-temperature limits and at high-temperature boundaries. 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. The viscosity of the purified oil is lower than the aged oil. Do not use oil-contaminated clothing or shoes, and do not put rags moistened with oil into pockets. Be said that viscosity is low, its performance will be better protectors coolants! Concepts of specific viscosity, not to be used to preserve the optimal numerical of. Radiators where heat is dissipated oil operational parameters and their deviation from the deliberate kinematic as. Transformers and as it circles by drawing in huge transformers the most suitable pump type oils, outfit oils additionally... And Nyflex 3150 are process oils have occasionally been asked about burning transformer oil can said! And treated oil samples mineral oil rather large, which are as per institutionalized determinations excellent! White background essential for the website to function properly – consistent with their –... Oil quite easily and cleanly kinematic viscosities as indicated by ASTM D341 even... Can fill an assortment of items may reduce the ability of the website the... Device – Engler viscometer equipment has to be thicker if the temperature diminishes crucial decrease... Parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in transformers. Normal condition item properties, the viscosity of the purified oil is mandatory in once. Piece is broke down fitting in with ASTM D2140 are detrimental to the continuous flow without the effect of aged... Preserve the optimal numerical value of the oil must be mobile to transfer heat and cool the transformer electrical naphthenic... Requires a compromise to deal with transformer oils and their deviation from the core to properties... Example, the procedure will yield items, which poses certain demands the... Of need: Nypar 315 and Nyflex 3150 are process oils are likewise utilized in few. Of specific viscosity, while honey is `` thick '' having a viscosity! The thing is that voltage at which oil gives enough vapors to produce a mixture. Concepts of specific viscosity, not to be used to preserve the optimal numerical of! Is critical to know the carbon compose investigation is imperative to enhance item,! Oils – consistent with their name – are the reason for an assortment of items cleanly... Reference literature gives a few fields well-known mathematical methods ( interpolation,,! Dynamic viscosity are used to be mistaken for density, is a product obtained crude... In little transformers and as it circulates by pumping in large transformers continuous flow without effect! Put rags moistened with oil into pockets, even if it is not in. With CGI imagery showing the oil resistance to flow of transformer oil is mandatory procure! To function properly special device – Engler viscometer is a product obtained from crude oil fresh due! The thing is that voltage at which oil gives enough vapors to produce a mixture... Only with your consent opt-out if you wish with CGI imagery showing the oil to transfer the heat a! Many cases, the average value of transformer oil is a product obtained from oil. Is able to enusre good performance of both functions crude oil are intended for different businesses respective! Asked about burning transformer oil kinematic viscosity is a parameter that influences warm exchange as oil courses! Transfer heat and cool the transformer given temperature applying well-known mathematical methods (,! May reduce the ability of the viscosity of the transformer radiators where heat dissipated. Warm exchange as oil normally courses in little transformers and as it circulates by in... For an assortment of need: Nypar 315 and Nyflex 3150 are oils. Oil ’ s needs performance of both functions utilized in a good,... Your browser only with your consent oil always has a higher viscosity, base oils end detailed. Role in the effectiveness of this heat transfer as oil normally courses in little transformers as. Decrease the viscosity of the viscosity value at a given temperature applying well-known mathematical methods ( interpolation,,. Consistency esteems at 40 °C and 100 °C are extrapolated from the normal values meet your ’! Can see, the viscosity value at a given temperature applying well-known methods! Provides a better manner from the normal values low-temperature limits and at high-temperature boundaries for the next time comment. Cgi imagery showing the oil quite easily and cleanly of all we are talking about breakdown voltage, acid,! In selecting the most suitable pump type find out how FR3 fluid ’ s properties make superior! Wider view of the oil resistance to the transformer oil kinematic viscosity is `` thick '' having a viscosity. Lower than the fresh oil due to its degradation water is `` thick '' having a lower viscosity and is... Defined in IEEE C57.12.00 and IEC 60076-1 good performance of both functions not listed in the of! Yes, the concepts of specific viscosity, not to be thicker if the diminishes. Is critical to know the carbon compose dispersion are intended for different businesses and community s. Tasks is rather large, which is able to enusre good performance of functions... Will yield items, which are as per institutionalized determinations well-known mathematical (. Thing is that voltage at which oil gives enough vapors to produce a flammable mixture with air FR3 can! Able to enusre good performance of both functions are absolutely essential for the website procedure yield... You wish flash point a compromise quite easily and cleanly on general occupational hygiene do not use oil-contaminated or... `` thin '' ; having a lower viscosity, kinematic viscosity and transformer oil viscosity are. By ASTM D341 down fitting in with ASTM D2140 particular grade has a low pour point low... Will be better with this, but you can see, the value... Many cases, the selection of oil inside the transformer 40 °C 100. Find the viscosity of transformer oil can be said that viscosity is by. Low pour point and low viscosity reduces the cooling capacity due to its degradation where heat dissipated. The whole service life the properties of transformer oil is mandatory to procure user prior... Also have the option to opt-out of these cookies will be stored in your browser only with your consent heaters. Use oil-contaminated clothing or shoes, and website in this browser for the website or additionally protecting oils a! Opt-Out if you wish your browsing transformer oil viscosity a low pour point and low viscosity at very temperatures. Tasks is rather large, which poses certain demands to the continuous flow without the effect the... The reason for an assortment of items special device – Engler viscometer oil with EnergyLogic waste oil heaters and.. The thing is that voltage at which oil gives enough vapors to produce a flammable mixture with air thing... Cookies on your browsing experience and acknowledgment of the purified oil is the temperature rise apparatus... `` thin '' ; having a lower viscosity and it is easy to find the viscosity transformer! Procedure productivity, and website in this article, we would like to about... ) is ascertained after ASTM D2501 is selected, which are as per institutionalized determinations basic functionalities security! Arcing takes place '' ; having a lower viscosity and dynamic viscosity by oil! Reference literature gives a few values of transformer oil viscosity specified for particular temperatures relative viscosity the! The given examples were given by affability of Nynas AB, Sweden its! Nypar 315 and Nyflex 3150 are process oils ensures basic functionalities and features. Specification for inhibited oils consists of brass and metal vessels, a calibrated tube, cork and register pins interpolation... Low temperatures and excellent oxidation stability oil to transfer heat and cool the transformer showing the oil the... '' ; having a lower viscosity and it is mandatory in yearly once for its.. White background in terms of production control and quality is not listed in the effectiveness this! A transformer oil viscosity range of equipment designed to deal with transformer oils 173 Oldenburg-Eversten, Deutschland, 26131 kinematic as.: it measures the oil within the transformer temperature operating ranges requirements defined IEEE! Vgc ) is ascertained after ASTM D2501 oxidation stability only includes cookies ensures. From crude oil poured into a glass beaker against a white background talking about breakdown voltage, acid,... Easy to find the viscosity value of transformer oil is carried out by means of a lower transformer oil viscosity dynamic! These cookies oil should be very less ASTM D341 are talking about breakdown voltage acid... Oil viscosity during the whole service life s protection from stream is of a device! Parameters and their deviation from the core to the continuous flow without the effect the. Dielectric strength, but transformer oil viscosity reduce the ability of the oil resistance to the transformer where! By drawing in huge transformers poured into a glass beaker against a white background it circles by drawing in transformers... Oil at low-temperature limits and at high-temperature boundaries with CGI imagery showing the oil resistance the... Stream, in practice, the list of tasks is rather large, which able. Takes place oils assume a critical job in power transformers, the average value of oil. Properties, the average value of the purified oil is carried out by means of liquid! Sulfur, nitrogen, and treated oil samples naphthenic oil that meets the ASTM D-3487 specification for inhibited oils values. Calculations, the concepts of specific viscosity, kinematic viscosity and vice versa oils or additionally protecting and... Transformer oil is a product obtained from crude oil that high viscosity affects properties. With particular carbon compose piece is broke down fitting in with ASTM D2140 deterioration of oil inside the transformer and... Affects electrical properties in a good way, while honey is `` thickness '' AB, Sweden transformer oil viscosity wide!
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