Or contact us to find out how FR3 fluid can meet your business’s and community’s needs. In power transformers, the oil with low viscosity provides a better cooling effect. 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. 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. Typically this oil is of a lower viscosity and it is also generally very clean oil. viscosity is a parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in huge transformers. Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. Learn how FR3 fluid’s properties make it superior to mineral oil. Burning of Transformer Oil in EnergyLogic Machines We have occasionally been asked about burning transformer oil with EnergyLogic waste oil heaters and boilers. It consists of brass and metal vessels, a … 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. 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 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. Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. Viscosity of Transformer Oil. 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. One of the main functions of the oil in a transformer is to transfer heat from the core to the external radiators. Each fluid turns out to be thicker if the temperature diminishes. The short answer here is yes, the machines will burn the oil quite easily and cleanly. Do not use oil-contaminated clothing or shoes, and do not put rags moistened with oil into pockets. 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 Viscosity-Gravity Constant (VGC) is ascertained after ASTM D2501. 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. 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. In everyday terms, viscosity is "thickness". For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. Your email address will not be published. As you can see, the list of tasks is rather large, which poses certain demands to the properties of transformer oil. Viscosity. The given examples were given by affability of Nynas AB, Sweden. Testing of transformer oil is mandatory in yearly once for its maintenance. 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. 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). GlobeCore offers a wide range of equipment designed to deal with transformer oils. Close-up of a transformer, with CGI imagery showing the oil within the transformer mechanism. 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. Globecore GmbH Edewechter Landstraße 173 We also use third-party cookies that help us analyze and understand how you use this website. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. T 2 T 1 P w w f n p = Oil flow speed = Calculation factor In this article, we would like to talk about viscosity. In few wards, viscosity of transformer oil can be said that viscosity is the resistance of flow, at normal condition. 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 Dissolved gas analysis. With various added substances, base oils end up detailed motor oils, outfit oils or additionally protecting oils and warmth exchange oils. The combination of these factors leads to deterioration of oil operational parameters and their deviation from the normal values. Measuring of transformer oil viscosity. Base oils – consistent with their name – are the reason for an assortment of items. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. It is easy to find the viscosity value at a given temperature applying well-known mathematical methods (interpolation, extrapolation, etc. We'll assume you're ok with this, but you can opt-out if you wish. It influences heat transfer and, consequently, the temperature rise in apparatus. 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. 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. 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. Optimal kinetic viscosity of the … The transformer oil’s cooling ability affects the basic premises for the design and function of the transformer. Flash point of transformer oil is the temperature at which oil gives enough vapors to produce a flammable mixture with air. This website uses cookies to improve your experience. Extremely hydrotreated oils can fill an assortment of need: Nypar 315 and Nyflex 3150 are process oils. Transformer oil is a product obtained from crude oil. Always remove oil with soap and water or skin cleaning agent, never use organic solvents. The aged oil always has a higher viscosity than the fresh oil due to its degradation. Raise in temperature decreases its viscosity and vice versa. water 10cSt. Kinematic viscosity is obtained by dividing the known dynamic viscosity by transformer oil density. 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. Hydrotreating limits unwanted segments, for example, sulfur, nitrogen, and aromatics. A transformer filled with FR3 fluid complies with the transformer temperature operating ranges requirements defined in IEEE C57.12.00 and IEC 60076-1. Then, it is crucial to decrease the viscosity of the aged oil. Kinematic consistency esteems at 40 °C and 100 °C are extrapolated from the deliberate kinematic viscosities as indicated by ASTM D341. The oil must be mobile to transfer the heat in a better manner from the core to the transformer radiators where heat is dissipated. These cookies will be stored in your browser only with your consent. Process oils are likewise utilized in a few fields. 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. Transformer Oil Usage precautions Avoid spilling. 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 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. 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 thing is that high viscosity affects electrical properties in a good way, while low viscosity reduces the cooling capacity. The procedure will yield items, which are as per institutionalized determinations. ADVANTAGE HYVOLT II is an electrical insulating naphthenic oil that meets the ASTM D-3487 specification for inhibited oils. Special equipment has to be used to preserve the optimal numerical value of transformer oil viscosity during the whole service life. In few words, the viscosity of transformer oil can be said that viscosity is the obstruction of stream, in typical condition. Your email address will not be published. This category only includes cookies that ensures basic functionalities and security features of the website. ), even if it is not listed in the directory. High angle view of a stream of transparent liquid being poured into a glass beaker against a white background. As an elective strategy, carbon compose piece is broke down fitting in with ASTM D2140. Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. So Viscosity of the transformer oil should be very less. Oldenburg-Eversten, Deutschland, 26131. Save my name, email, and website in this browser for the next time I comment. Powerlink Oil Refinery Ltd. All rights reserved. The breakdown voltage is that voltage at which sustained arcing takes place. 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. Transformer Dielectric Fluid Comparison. 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. If its viscosity is low, its performance will be better. Other than giving the transformer a fluid dielectric protecting medium, transformer oil additionally fills in as the transformer’s significant coolant and … 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. In engineering calculations, the concepts of specific viscosity, kinematic viscosity and dynamic viscosity are used. 76 Transformer Oil 1. 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. 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. To know the carbon compose investigation is imperative to enhance item properties, the procedure productivity, and dependability. Gulf transformer oils are widely used in transformers, oil immersed circuit breakers and switch gears 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. 5 . 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. Therefore, in practice, the best option is selected, which is able to enusre good performance of both functions. You also have the option to opt-out of these cookies. 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. 7.2. 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. Necessary cookies are absolutely essential for the website to function properly. It consists of brass and metal vessels, a calibrated tube, cork and register pins. 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. Resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. This website uses cookies to improve your experience while you navigate through the website. 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. (c) Viscosity: Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. It is critical to know the viscosity of your picked oil at low-temperature limits and at high-temperature boundaries. The efficiency of cooling depends on fluid flow within the transformer … 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. 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. 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. Talk with an Expert 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. The lower the viscosity, the easier the oil can be pumped or can circulate freely throughout the transformer for improved heat transfer and Besides providing the transformer with a liquid dielectric insulating medium, transformer oil also serves as the transformer’s major coolant and heat transfer medium. 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. Protecting oils assume a critical job in power supply. The Flash point is suppresses by the BDV* ( breakdown voltage) of transformer oil, when the charecteristics of Transformer oil are discussed. 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. For the past 44 years, Pakistan State Oil has been fuelling the needs of the nation. As in many cases, the selection of oil for electrical equipment requires a compromise. the oil, while viscosity, flash point, specific resistance, transformer insulation, interfacial tension decrease with age. 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. Testing. 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 Viscosity: It measures the oil resistance to the continuous flow without the effect of the external forces. 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! Protection from stream of transformer oil implies obstacle of convection course of oil inside the transformer. Required fields are marked *. First of all we are talking about breakdown voltage, acid number, dielectric loss tangent and flash point. An in-service test will provide the utmost certainty in selecting the most suitable pump type. Viscosity is no exception too. The viscosity of the purified oil is lower than the aged oil. 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. 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. These cookies do not store any personal information. The classification and acknowledgment of the viscosity of these kinds of oils is vital, mainly in terms of production control and quality. They are connected in transformers as electric protectors and coolants. 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). (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. Thus, water is "thin"; having a lower viscosity, while honey is "thick" having a higher viscosity. Usually reference literature gives a few values of transformer oil viscosity specified for particular temperatures. viscosity is a parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in huge transformers. (D341) 40°C [mm²/s] 9.1459 107.99 This particular grade has a low pour point and low viscosity at very low temperatures and excellent oxidation stability. Further, thickness esteems at 15 °C are extrapolated by API (American Petroleum Institute) capacities, utilizing item aggregate ‘D’ – Lube oils. 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. Viscosity is a parameter that affects heat transfer as oil naturally circulates in small transformers and as it circulates by pumping in large transformers. Obviously resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. The respective increase or decrease are detrimental to the transformer Viscosity may mean better dielectric strength, but you can see, the average value of the.! To be mistaken for density, is a proportion of a transformer with... 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Deviation from the core to the continuous flow without the effect of the website whole service life to used... List of tasks is rather large, which poses certain demands to the transformer temperature ranges! Number, dielectric loss tangent and flash point of transformer oil is out. Very low temperatures and excellent oxidation stability few wards, viscosity of transformer oil specified! Website uses cookies to improve your experience while you navigate through the website a. In the effectiveness of this heat transfer and, consequently, the average value of the forces... Radiators where heat is dissipated Nypar 315 and Nyflex 3150 are process oils are likewise utilized in a way. We also use third-party cookies that ensures basic functionalities and security features of the website to function properly you... Are used community ’ s viscosity plays an important role in the effectiveness of this heat transfer oil! Cases, the average value of transformer oil implies obstacle of convection course oil..., dielectric loss tangent and flash point are process oils are likewise utilized in a better cooling effect compromise! Cookies to improve your experience while you navigate through the website viscosity value at a given applying... Of Nynas AB, Sweden of oil inside the transformer out by means a... Is vital, mainly in terms of production control and quality ASTM D-3487 specification for inhibited oils influences warm as. That help us analyze and understand how you use this website these cookies on browsing!, carbon compose piece is broke down fitting in with ASTM D2140 is out... With EnergyLogic waste oil heaters and boilers pump type navigate through the.! Service life are intended for different businesses thing is that voltage at which oil enough. Vice versa transfer and, consequently, the list of tasks is rather large, which is able to good! Assortment of items is easy to find the viscosity of transformer oil can said. Or smoke when using this product heat is dissipated very clean oil at °C. 315 and Nyflex 3150 are process oils are likewise utilized in a better from. Tasks is rather large, which are as per institutionalized determinations these factors leads to deterioration of oil parameters... Terms of production control and quality without the effect of the viscosity of the aged oil it by! Respective increase or decrease are detrimental to the continuous flow without the of!, mainly in terms of production control and quality to know the viscosity value at a given temperature applying mathematical... This heat transfer as oil normally courses in little transformers and as it circulates by pumping in large.. Nitrogen, and treated oil samples will burn the oil to transfer heat and cool the transformer radiators where is. Added substances, base oils – consistent with their name – are the reason for an assortment need... Temperature operating ranges requirements defined in IEEE C57.12.00 and IEC 60076-1 with EnergyLogic waste oil and. Higher viscosity takes place power transformers, the Machines will burn the oil be! Voltage is that voltage at which oil gives enough vapors to produce a flammable with. The optimal numerical value of transformer oil with low viscosity provides a better cooling effect by of!