Additional useful tests performed by transformer oil laboratories include those for water content, PCBs furanic compounds and metals-in-oil. Power factor Breakdown Voltage BDV Testing of Transformer Oil. ppm: Neutralization (Acid) number: D974: New transformer oils contain practically no acids. This early warning system can allow maintenance management to identify maintenance priorities, plan work assignment schedules, arrange for outside service, and order necessary parts and materials. This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Transformer oil keeps the transformer cool. It is certified to ISO/IEC 17025 standard for chemical and biological testing and is as established as the transformer plant itself, having been in continuous operation for > 30 years. Its use to call transformer oil and it a little bit pricey. Oil Filtration Machine. ALS performs several tests that allow for proper condition monitoring. Our testing procedure can be broken down into certain sectors. RSYJ-80 Insulation Oil Dielectric Strength Tester AC 0~80kV Output Voltage. Transformer Oil Testing is a proven loss prevention technique which should be a part of any condition-based predictive maintenance program. explore. At Oil check we have the capacity to test oil from an aged transformer whether it be for maintenance, checking for any carry over after an oil change, disposal or refurbishment for such PCBs; ensuring that your equipment is compliant with the European Directive 96/59/EC. 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The byproducts are characteristic of the type of incipient-fault condition. Dielectric breakdown voltage; e.g., D 877, ASTM D1816, Oxidation inhibitor content; e.g., ASTM D2668, Polychlorinated biphenyls content; e.g., ASTM D4059, Relative density (specific gravity); e.g., D 1298, ASTM D1524. RSBS-IV Transformer Oil Testing Equipment Moisture ≤80 %RH 0.1 Resolution Ratio. The transformer quality can be performed through the following tests. Transformer Vacuum Drying by Vacuum Transformer Oil Filtration Machine. Transformer oil testing is one of the important parts of a power transformer.This test will be performed when your power transformer cooling system is an oil type. Our transformer oil testing services offer you a complete solution to your transformer testing needs. Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings. Transformer Field Services We offer on-site inspection, testing, maintenance, oil processing, relocating, and repair services for transformers and associated substation equipment. Transformer oil analysis is essential in accessing where on the system individual transformer units will likely fail. Megger provides laboratory grade oil test equipment, backed by experience reaching back to the early 20th century, to test these fundamental characteristics of insulating oil. These tests are carried out during the maintenance and operation of the transformer. Oil testing allows the operator to determine the equipment’s operating efficiency, conditions and the possibility of future malfunctions. Transformer oil acts as an electrical insulating media and helps protect the components. Testing a Transformer. Contamination of the oil is exhibited by poor transparency, cloudiness, or the observation of foreign particles. It also insulates the transformer and allows electrical components to be more compact than free air apparatus. Electrical and thermal stress or chemical contamination can cause failures and reduced component life. Open all the valves of each accessory and component to the main body, so that all accessories except the oil conservator and gas relay (including the cooler and radiator) are connected to the transformer for vacuum pumping. Inspection : Anually. JY6611 transformer oil breakdown voltage tester use advanced voltage breakdown control technology which will keep breakdown energy in a very low level,that will avoid pollution to oil sample during testing and make sure the test result are accurate and reliable. The oil pressure test on transformer to check against leakages past joints and gaskets is included. The main physical and chemical properties tested in Transformer Oil Testing Methods are the oil’s dielectric strength, dissipation factor, flashpoint, color, amount of solid particulate matter, water content, gas content and the oil’s acid number. Shortcircuit test. The performance characteristics of transformer insulating oil are monitored and tested at several stages during its service life. Determines the presence of degradation in cellulosic materials such as paper, pressboard, and cotton, which generate furanic compounds in the insulating oil. Decreasing dielectric strength is caused by contamination of the oil by gas, moisture, cellulose fibers or other particulate matter. Acidic sludge forms in contaminated oil and aggressively attacks the cellulose insulation and reacts with the metals of the transformer’s other internal components. Moisture content 3. The presence of solid particles in the oil and the acid number of the oil are two related oil purity characteristics. Dielectric breakdown voltage 2. Measured by inductively coupled plasma atmonic emission spectrometry (ICP-AES) and expressed in micrometers. Add the low turnaround time for sample testing, the precise and accurate results, and the record maintenance. Corona is considered to be partial discharge and occurs at areas of high electrical stress, such as at sharp points along an electrical path. 4. The transformer’s fluid not only serves as a heat transfer medium, it also is part of the transformer’s insulation system. Care should be taken when sampling transformer fluid and should be performed by a trained operator. When the standards and principles stated by ASTM are followed, then it results in good oil. Dielectric tests. Some of the most common tests for transformer oil are: Dissolved Gas In Oil Analysis, screen tests, water content, metals-in-oil, and polychlorinated biphenyl As the insulating materials in a transformer break down due to thermal and electrical stresses, gaseous byproducts are formed. Transformer oil is not any ordinary oil. A high specific gravity indicates the oil’s ability to suspend water. Transformer LifeCycle Management 'ZERO' Breakdown | NO Production Loss FIELD SERVICES. Remove a sample of insulating transformer oil in accordance with ASTM D-3613 and test shall be performed for dissolved gas analysis (DGA). The paper insulation which is normally used to insulate the windings of a transformer is a cellulose product. This test is particularly useful in cold climates to ensure that the oil will circulate and serve its purpose as an insulating and cooling medium. Transformer Oil Testing. Our laboratories in Australia maintain ISO and NATA certification for quality assurance and expertise. Electrical and thermal stress or chemical contamination can cause failures and reduced component life. RSBS-IV Transformer Oil Testing Equipment Moisture ≤80 %RH 0.1 Resolution Ratio. This test does not measure the water content in the transformer paper insulation. The are distinct advantages of testing and analyzing transformer oil before starting your electric power equipment and during scheduled maintenance events. Indicates the volatility of insulating oil by measuring the minimum temperature at which the heated oil gives of sufficient vapor to form a flammable mixture with air. No single test alone will represent or indicate the true condition of the liquid. Reliable testing … Transformer oil testing is one of the important parts of a power transformer. Electrical and thermal stress or chemical contamination can cause failures and reduced component life. 6. It is a characteristic of the oil’s quality and purity and acidity. If the purity and quality standards are followed, the equipment will be less likely to experience failures and downtime and unscheduled maintenance and repair costs. An oil sample tube and syringe is used to draw, retain and transport the oil sample in the same condition as it is inside a transformer with all fault gases dissolved in it. Transformer Oil Testing Equipment. The SDMyers transformer oil testing lab is the largest in the world. For mineral oil, a generally accepted maximum moisture content is 35 ppm. The breakdown voltage is that voltage at which sustained arcing takes place. Routine testing of transformer oils and insulating oils on a regular schedule is an accepted industry practice. Transformer oil testing consists of measuring breakdown voltage and other physical and chemical properties of samples of the oil, either in a laboratory or using portable test equipment on-site. If the arc occurs in the area of cellulose insulation, carbon dioxide and carbon monoxide also will be elevated. The transformer is the main part of an electrical distribution system so if it is not working properly then it will affect the distribution system. Our labs cover the following: PCB in Oil per Gas Chromatography Oil Tests . Transformer oil acts as an electrical insulating media and helps protect the components. A DGA test can identify an overloaded transformer by a test result showing high carbon monoxide, high carbon dioxide, and in extreme cases, even elevated methane and ethylene. The heart of the transformer is the solid insulation, but the insulating oil is the life blood of the transformer. Inspection & Sampling 5 years. Get Contact details & address of companies manufacturing and supplying Transformer Oil Test Kit across India. Analysis of gases in the oil can indicate insulation overheating/overloading, liquid overheating, partial discharge (corona), or arcing in the transformer. ALS can be a partner to help maximize your equipment reliability performance. Welcome to NDL Power Limited, it is India's leading private laboratory for transformer oil testing. Testing of transformer oil is mandatory in yearly once for its maintenance. Actions that can be taken once a thermal gas problem is detected would depend on the severity of the problem. GlobeCore uses test results to diagnose transformer problems. Transformer Oil Testing is a proven loss prevention technique that should be a part of any condition based predictive maintenance program. A low resistivity reflects a high content of free ions and ion-forming particles in the insulating oil, and normally indicates a high concentration of conductive contaminates. So it has to go through numerous testing procedures. The ability of insulating oil to maintain its original performance characteristics during long term operation of electric equipment is referred to as “oil stability.” If the electric power equipment has no defects and operates in accordance with design and expectations, the performance characteristics of new oil will change and degrade slower. This early warning system can allow maintenance management to identify maintenance priorities, plan work assignment schedules, arrange for outside service, and order necessary parts and materials. Used to observe darkening of the oil by comparing it to previous samples of oil from the same transformer. The oil circulates through the transformer by natural convection. Regular sampling and testing of insulation oil taken from transformers is a valuable technique in a preventative maintenance pr ogram. 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