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 Our transformer oil testing services offer you a complete solution to your transformer testing needs. RISING Transformer Oil Testing Equipment / Transformer Oil BDV Tester 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. This means that every time you visit this website you will need to enable or disable cookies again. 5 years. Welcome to NDL Power Limited, it is India's leading private laboratory for transformer oil testing. 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. Maintenance of substation transformers is often neglected, with potentially severe consequences. Insulating Oil(Transformer Oil) Testing is an essential part of any maintenance plan for the transformer. Expert transformer condition diagnostics backed by five decades of data-driven wisdom. Typically, results of 0.10 mg KOH/gram of oil or less are considered good. Electronic on-line dissolved gas detectors can be connected to important or distressed transformers to continually monitor gas generation trends. Furanic Compounds In Oil . Sudden pressure relay . Decreasing dielectric strength is caused by contamination of the oil by gas, moisture, cellulose fibers or other particulate matter. Manufacturer HZJQ-X1 Portable Transformer Oil Dielectric Strength Test Equipment. This website uses cookies so that we can provide you with the best user experience possible. The acidity test measures the content of acids formed by oxidation and contaminates. Electrical and thermal stress or chemical contamination can cause failures and reduced component life. Oil level indicator operation : 5 years. Transformer Oil Testing is a proven loss prevention technique that should be a part of any condition based predictive maintenance program. GlobeCore uses test results to diagnose transformer problems. Designed by experts, these Oil Test Sets are subjected to provide complete satisfaction to the clients. Testing MIDEL 7131 and MIDEL eN. Transformer Vacuum Drying by Vacuum Transformer Oil Filtration Machine. 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. The presence of solid particles in the oil and the acid number of the oil are two related oil purity characteristics. The “screen test” is a collection of physical, electrical and chemical transformer oil testing methods. The heart of the transformer is the solid insulation, but the insulating oil is the life blood of the transformer. 1. This early warning system can allow management to identify maintenance priorities, plan work assignment schedules, and order necessary parts and materials. Analytical Testing. Transformers degrade over time, and failure to collect oil samples and conduct testing can allow problems to go undetected, causing increased operating costs and downtime. Reliable testing … Get Contact details & address of companies manufacturing and supplying Transformer Oil Test Kit across India. A blood test provides a doctor with a wealth of information about the health of a patient. Transformer Oil Testing Equipment. This website uses cookies to improve your experience. In addition, dissolved gases are extracted from the oil sample, separated, and quantified in a gas Chromatograph. Useful for measuring changes within the insulating oil resulting from contamination or deterioration. The “dielectric breakdown test” is calculated as an average of five breakthroughs achieved in a standard discharger with two electrodes submersed in the oil at 2.5 mm distance from each other. A high specific gravity indicates the oil’s ability to suspend water. Sampling for Dissolved Gas Analysis (DGA) requires a special sampling syringe, which ALS can help provide. This paper reviews some of the transformer oil tests and there significance. If the oil becomes contaminated or begins to oxidize and breakdown, the performance is compromised and the transformer can short out or worse. Whenever a transformer undergoes abnormal thermal and electrical stresses, certain gases are produced due to the decomposition of the transformer oil. 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. Special tests help to provide useful information to the user. Each test is an indication of how suitable the insulation liquid is for service. The condition of the oil, its purity and contamination level will greatly help in indicating the condition of the transformer’s solid insulation. Heating may be caused by poor contacts on a tap changer, or loose connections on a bushing or a grounding strap, or circulating currents in the core due to an unintended core ground. Transformer Insulating Oil Test Methods (ASTM) A table of the most common ASTM … Special Tests of transformer include 1. Oil testing allows the operator to determine the equipment’s operating efficiency, conditions and the possibility of future malfunctions. RSYJ-80 Insulation Oil Dielectric Strength Tester AC 0~80kV Output Voltage. These tests are carried out during the maintenance and operation of the transformer. Measures the electrical insulating properties of transformer oil under conditions comparable to those of the test. An annual DGA is the most important test for liquid insulation. The transformer’s fluid not only serves as a heat transfer medium, it also is part of the transformer’s insulation system. ppm: Neutralization (Acid) number: D974: New transformer oils contain practically no acids. Routine test of transformer oil: This test of transformer oil is so important. 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. Specific transformer oil test method availability will vary depending upon location. Our laboratories in Australia maintain ISO and NATA certification for quality assurance and expertise. A DGA test will indicate high thermal gases (methane, ethane and ethylene) as a result of overheating of the liquid. Oil is visually examined by passing a beam of light through it to determine transparency and identify foreign matters. A similar process is used to calculate the oil’s “dissipation factor.”  It is the the oil’s ability to neutralize energy, prevent breakthroughs and cool the transformer. 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