Thus sludge of naphtha-based oil is not precipitated in the bottom of the transformer. Although Paraffin oil has a lower oxidation rate than Naphtha oil, the oxidation product (sludge) is insoluble and precipitated at the bottom of the tank. Regular monitoring of the oil’s quality and condition is a part of the process of servicing electric power equipment. Over time, the oil will degrade resulting in the potential for faults and costly repairs. It is available in different Grades like EHV GR-1, EHV-GR2,depending upon the compositions & values of dielectric strength, flash point, neutrilization values as per IS: 335. Physical properties: Interfacial tension, viscosity, flash point, pour point. As an insulating material is dielectric in nature the current through the insulation ideally leads the voltage by 90o. Transformer or insulating oils are very pure highly refined mineral oils optimized to meet the stringent requirements of the international Standard IEC 60296, Edition 4.0 2012 02. Large amounts of hydrogen or acetylene or minor quantities of ethylene and methane can be produced. Good new oil generally exhibits high interfacial tension. If the results from the test are showing some red flags, the frequency will have to increase. This rate of degradation of oil increases. So, the transformer oil primary functions are cooling and insulating the transformer. and it has all the necessary important properties like high ignition temp.,no sludge formation,low resistance to imulsion,etc. The power transformer protection as a whole and the utilization of the below presented protection devices are not discussed here.. 1. Ergon's Hyvolt II Transformer Oil is a severely hydrotreated naphthenic insulating oil that does not require carcinogenic labeling. This oil is manufactured using only the best quality ingredient and are free from all sorts of contamination. It must be leveled and fire-resistant. Oil color is determined by means of transmitted light and given a numerical value (0-5) based on comparison with a series of color standards. The Buchholz protection is a mechanical fault detector for electrical faults in oil-immersed transformers. Transformer oil Treatment. 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 water content in oil also affects the paper insulation of the core and winding of a transformer. We express the acidity of oil in mg of KOH required to neutralize the acid present in a gram of oil. Interfacial tension is exactly useful for determining the presence of polar contaminants and oil decay products. Traces of acetylene might be created if the unit has electrical contacts or if the problem is severe. ... Name * Email * Website. First, it is the fundamental element of the insulating system. If the resistivity of the insulating oil gets decreased, the value of tan-delta increases and vice verse. A well known name in the transformer industry and one of the leading transformer manufacturers in India. Description : Procurement Plan for Supply Transformer Oil for Phu My 1 Date Approval: 19/07/2019 Package: 1 Type: Goods Name: Supply transformer oil for Phu My 1 Price: 968.000.000 [Disclaimer: The above text is machine translated. So taking the proper testing procedures now will save you thousands of dollars in the long run. The oil that provides insulation and cooling properties for a transformer should be tested before the transformer is energized, and periodically as a part of a regular maintenance schedule. Servo Transformer(Electra) is a high quality un-inhibited insulating oil developed for the use in electrical transformers & circuit breakers. Tangent of the angle by which it is short of 90o is called dielectric dissipation factor or simply tan delta of transformer oil. Flash point of transformer oil is the temperature at which oil gives enough vapors to produce a flammable mixture with air. The level of transformer oil is typically measured using a MOG (Magnetic Oil level Guage). High Pour point does not cause any problem because of hot climate of India. Different transformer oil treatments can solve range of problems. These tests will help determine if the oils are clean and will create a baseline of properties that need to be tested periodically. Whenever oil temperature increases to specific level, it provide signal to alarm circuit. Silicone based transformer oil was generally popularized in the middle of 70’s and has become broadly accepted for transformer where the location or environment presents a risk that appeals a fire safety alternative to transformer oil. act as a coolant). Most Important: Some spurious oil is being supplied by some spurious Trader in the Name of Transformer oil which looks like Transformer oil but actually this type of oil having flash point of about 100 deg C is very dangerous to public life and property. Breakdown voltage is measured by observing at what voltage, sparking strands between two electrodes immersed in the oil, separated by a specific gap. pressure relief vent : Interfacial tension between the water and oil interface is the way to measure the attractive molecular force between water and oil. This measurement is taken 3 to 6 times in the same sample of oil, and we take the average value of these readings. Low viscosity of transformer oil is essential, but it is equally important that the viscosity of oil should increase as less as possible with a decrease in temperature. In the last five decades in India, there is a drastic change in production technology. © 2016 - 2021 KaaShiv InfoTech, All rights reserved. Even if the cost of testing is high, the expense should be compared to the cost of replacing a transformer and the downtime associated with losing the transformer. Sino-NSH Oil Purifier Manufacture Co., Ltd is a high-tech Company which engaged in manufacturing lubrication purification equipment such as transformer oil recycling system, turbine filtration plant, industrial treatment device ... Address：NanQiaoSi, JiangBei District, chongqing, China Business type：Manufacturing. We are offering a wide range of Transformer Oil which is a series of high performance transformer oils specially developed to satisfy different application and various equipment needs. For good Transformer Oil Flash Point should be higher (140 Centigrade). Testing standards and procedures are defined by various international standards, and most of them are set by the ASTM. The main advantage of using MIDEL transformer oils over mineral oil is their far greater fire safety. The company has its presence in more than 100 countries such as Brazil, Canada, the US, China, Australia, Japan, Germany, the UK, and Saudi Arabia. 1767.1 - 1999 and Doble's TOPS, IS 335 - 1993 and IS 12463 - 1988. Which grade of mineral oil is used in transformers as transformer oil? Paraffin-based oil has a higher value of pour point, compared to Naphtha based oil, but in India like country, it does not affect the use of Paraffin oil due to its warm climate condition. Another problem with paraffin-based oil that the dissolved waxes inside of it can lead to a high pour point. Hence it is desirable to have loss angle as small as possible. IR values to be recorded at intervals of 15 seconds, 1 minute and 10 minutes. FOR PRODUCTS OR QUANTITIES OVER 100 POUNDS PLEASE REQUEST A FREIGHT SHIPPING QUOTE | 601.630.9972 The accurate measurement of water content at such low levels requires very sophisticated instrument like Coulometric Karl Fisher Titrator. So resistivity of the insulating oil must be high at room temperature and also it should have good value at high temperature as well.That is why specific resistance or resistivity of transformer oil should get measured at 27oC as well as 90oC. As Paraffin-based oil has more wax content, it has higher pour point. Hence it does not obstruct convection circulation of the oil, means it does not disturb the transformer cooling system. In this mineral Oil, available in market are by the name of POWER OIL, TRANSOL, SAVITHA, APAR, GHANDHAR etc. As oil is heated by the windings, it rises to the top and exits through piping to the radiator. in Dyne/cm or milli-Newton/meter. Find here online price details of companies selling Transformer Oil Test Kit. It absorbs the excess amount of heat when the transformer is operational and keeps the transformer cool from inside. MAIN COMPONENTS OF A POWER TRANSFORMER Figure 4.2 illustrates the outline drawing of a transformer. During oxidation, acids get formed in the oil the acids give rise to the solubility of water in the oil. Hyvolt II is an inhibited product providing high dielectric strength. Transformer insulating oil from MIDEL. 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. And it has all the necessary important properties like high ignition tempratue.,no sludge formation, low resistance to imulsion,etc. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties.