Table One Typical Properties of Dielectric Fluids Conventional Property Transformer Oil Beta Fluid Viscosity, cSt. Download PDF Copy; Request Quote; Written by AZoM Sep 20 2016. Group II Base Oils have lower sulfur and higher saturates compared to Group I Base Oils. Absolute, Dynamic and Kinematic Viscosity - Dynamic, absolute and kinematic viscosities - convert between CentiStokes (cSt), centipoises (cP), Saybolt Universal Seconds (SSU) and degree Engler Crude oil viscosity as function of gravity - Viscosity at 20°C/68°F and 50°C/122°F for more than 120 crudes is shown as function of specific gravity@15°C/60°F The viscosity is typically reported in centistokes (cSt), equivalent to mm2/s in SI units, and is calculated from the time it takes oil to flow from the starting point to the stopping point using a calibration constant supplied for each tube. Explosive under the influence of a flame Not considered to be explosive. It is shown that the degradation rate of oils represented by kinematic viscosity is changed according to ester rate under thermal stress. The oil used in the transformer is a key element to check the physical condition of the unit. Generally the viscosity of lubricants means the kinematic viscosity expressed in cSt and the viscosity expressed in units other than cSt is as follows: ① cSt (Kinematic Viscosity) Strokes refer to the kinematic viscosity expressed in C. G. S and one hundredth of it is expressed in centistroke (cSt). New oils Name Method Units Insulating Oil Product Code 33165 Viscosity @ -15°C ISO 3104 cSt 400 Viscosity @ 40°C ISO 3104 cSt 9 Closed Flash Point ISO 2719 °C 140 Pour Point ISO 3016 °C -57 Density @ 20°C ISO 3675 g/ml 0.879 Neutralisation value IEC 62021-1 mgKOH/g … GST No. water 10cSt. Approx. None . DMSO extractable compounds for base oil substance(s) according to IP346 6. Hydrotreated paraffinic base oils with viscosities from 2 cSt to 12 cSt and hydroisomerized hydrogenated paraffinic hydrocarbon ranging in viscosity from 2 cSt to 8 cSt at 100 C. Advantages. Vapour density . The normal operating temperature viscosity for a 30 grade oil needs to have a viscosity range on the SAE chart of between 9.3 and 12.5 centistokes – at 100°C. We offer the transformer oil in barrels, flexi bags & … 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 2.1.2.2. Measuring the Viscosity of Transformer and Insulation Oil. The stability study of thermal aging is an essential tool to estimate the lifetime of insulating oil and therefore for the transformer. : 3.0 12.0 Pour Point, oC. Oxidising properties The mixture itself has not been tested but none of the ingredient substances meet the criteria for classification as oxidising. Conduction cooling is major heat removal mechanisms in transformers and higher viscosity would be expected to result in higher hot spot temperatures within the transformer. Oil with a viscosity that does not change much between 40°C and100°C will have a higher VI than an oil with a greater change in viscosity. Physical properties • Viscosity. Description. An oil that is 9.2 cSt will be nearly the same viscosity as an oil that is 9.3 cSt, yet one is an SAE 20 and the other is an SAE 30. The numbers are commonly assigned in ranges of 5, 10, 20, 30, 40, and 50. In the last five decades in India, there is a drastic change in production technology. Why one should use Transformer Oil IEC 60296 21011 Specifications. Viscosity 9.2 cSt @ 40°C Explosive properties Not considered to be explosive. Adsorbent based multi cycle regeneration Machine; Adsorbent can be used for more than 200 times by In-Situ reactivation ; BEST transformer oil reclamation without Clay. Viscosity cSt. AD03 looks like sand after complete life as it would be volatile hydrocarbon free. 7. Electricity is a key part of everyday life, from powering lights and heating food through to moving things in the environment, electrical power is required everywhere. Viscosity of insulating liquid affects the ability to transfer heat by conduction. 1 St = 100 cSt or 1 cSt = 10⁻⁶ m²/s. The numbers indicate to the nearest whole number, the mid points of their corresponding brackets. Transformer Oil Polishing Unit-TPU. Call 08048762045 87% Response Rate. filled with a fire resistant oil. Measurements of the viscosity of the oils studied are carried out using a viscometer and expressed in square meters per second (m 2 /s) or in centistokes (cSt). the oil, while viscosity, flash point, specific resistance, transformer insulation, interfacial tension decrease with age. Types of oils to study 2.3.1. 1) The Saybolt Universal SUS viscosity equivalent (SSU or SUS) to a given kinematic viscosity varies with the temperature at which the determination is made. Not applicable . transformer oil 50cSt. Oils with a high VI It consists of a series of 18 viscosity brackets between 1.98 mm2/s and 1650 mm2/s, each of which is defined by a number. For oils with the same specific gravity, we would opt for the lower viscosity. warmer after being retrofilled with Alpha-1 Fluid. D R P Silicone. Residual Transformer Oil: A successful retrofill job depends on removing as much of the original fill fluid as possible. Refer below test report. Viscosity mm²/s. The table at the right, SAE Viscosity Chart (High Temp), shows the equivalents for cSt and SAE viscosity numbers. Transformer oil that leaches from the paper and wood in the unit will mix with the Beta Fluid, possibly lowering the fire point. Transformer Fluids; APPLICATIONS; RESOURCES ; BASE OILS. is an electrical insulating naphthenic oil that meets the ASTM D-3487 specification for inhibited oils. Oil has three different basic properties that identify the suitability of the oil for the purpose of insulation and cooling. You'll see the ranges for cSt compared to SAE numbers. Alpha-1 Fluid's low viscosity will minimize the temperature rise associated with the retrofill. Sae-20 motor oil 500cSt. Viscosity Comparison Chart Viscosity Comparison Chart for Silicones Below is a reference for the viscosities of silicones to common fluids. The fluid of claim 1 wherein the base oil is winterized. The fluid should be tested in six months to determine if additional work is needed. Irving Transformer Oil . SEND EMAIL. In India, transformer oil is tested on the basis of IS 335. However, the commonly used measure is the stokes (or stoke) where 1 St = 10⁻⁴ m²/s. TrustSEAL Verified. The ideal oil would have a specific gravity in the upper portion (> .83) of the range specified under "required properties" and a viscosity between 12 cST at 40 o C (70 SUS at 100 o F) and 18 cSt at 40 o C (100 SUS at 100 o F). Generally the viscosity of lubricants means the kinematic viscosity expressed in cSt and the viscosity expressed in units other than cSt is as follows: ① cSt (Kinematic Viscosity) Strokes refer to the kinematic viscosity expressed in C. G. S and one hundredth of it is expressed in centistroke (cSt). 27CHDPP3712N1Z1. Not applicable . 5. The Viscosity Index Test (ASTM D 2270) is based on the Kinematic viscosity of the oil at 40°C (104°F) and 100°C (212°F). To confirm these properties, the tests performed on the transformer oil can also be divided into three different categories. Check ASTM D 2161 "Standard Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity" 2) Water at 68.4 o F (20.2 o C) has an absolute viscosity of one - 1 - centiPoise. Irving Transformer Oil These oils have desirable aquatic toxicity and carcinogenicity characteristics. The mineral-based oil like transformer oil is frequently used in different types of transformers for its dielectric strength as well as electrical properties. Sae-5 oil 100cSt. Oxidising properties . Additional information is available upon request. The fluid of claim 1 wherein the oleic acid content of the oil is about 30% or greater. Automotive Lubricant Viscosity Grades Gear Oils – Except SAE J 306, 1998 SAE VISCOSITY GRADE ASTM D2983 TEMPERATURE oC FOR VISCOSITY OF 150000mPa.S(1) ASTM D445(mm2/s) VISCOSITY AT 100oC MAX MIN2 MAX 70W -553 4.1 - 75W -40 … The viscosity is the Kinematic viscosity is measured in centistokes cSt (or mm2/s). A gear lubricant and an engine oil having the same viscosity will have widely different SAE grade designation as defined in the two classifications. These fluids are used as Release agent & Lubricant in variety of applications. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. Sae-10 motor oil 350cSt. Get Best Quote. Water at 20 °C has a kinematic viscosity of about 1 cSt. These properties are physical, electrical, and chemical properties. Last modified: 2012/06/03 by dmitri_kopeliovich Except where otherwise noted, this work is licensed under a Creative Commons Attribution-Noncommercial-Share … Low viscosity of the transformer oil is an advantage for heat dissipation. Using the Kinematic Viscosity … 9.2. Its symbol is St. Explosive properties . 2.3. In engineering, centistokes (cSt) are usually used. Enjoy. The tests results allow to make a comparison between the different mixtures proposed and to select the best. manufactured in the viscosity range from 0.65 cps to 60000 cps, can be easily converted into emulsion by using non ionic emulsifiers. Oil viscosity is graded by measuring the time it takes for a standard amount of oil to flow. Manufacturer of Industrial Oil - Transformer Oil, Defoamer Oil, Chain Oil offered by D R P Silicone, Mumbai, Maharashtra. Silicone oil. The fluid of claim 3 wherein the antioxidant produces an electrically-insulating fluid having a kinematic viscosity in the range of 20-40 cSt as desired at 40° C. and the antioxidant is a free radical scavenger. Viscosity index numbers above 95 are considered high. Product Brochure. Kinematic (40°C): 0,096cm²/s (9,6 cSt) Evaporation rate . It’s up to you to decide if the info is applicable to your operating conditions. In the SI the unit is m²/s. The comparisons are not exact and should only be used as a general guide. This is why the cSt centistokes numbers more accurately show oil viscosity. Not applicable . Also, you don't have to wait until -40 C to see that the viscosity of a 5W30 is much less than a 15W40 even at say 0 degrees C. Keep in mind the units are in cSt, the same units as your viscosity at 100 C where the viscosity runs from 8 to 16 cST depending on which oil you use. Irving Transformer Oil. 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