In order to test the oil, we take several samples where the physical and chemical properties will be tested. The heart of the transformer is the solid insulation, but the insulating oil is the life blood of the transformer. Our transformer oil testing services offer you a complete solution to your transformer testing needs. Transformer excitation current test : 5 years. +91-9818-555-952 ©2020 by NDL Power Limited. ALS provides a wide range of analytical services to monitor transformer operating condition and fluid health. Different gasses will dissolve in the oil that indicate various types of thermal and electrical stress occurring within the transformer. Actions that can be taken once a thermal gas problem is detected would depend on the severity of the problem. Transformer oil is crucial in the cooling process of a transformer. Special tests help to provide useful information to the user. Used to observe darkening of the oil by comparing it to previous samples of oil from the same transformer. Some transformer oil tests can be carried out in the field, using portable test apparatus. The performance characteristics of transformer insulating oil are monitored and tested at several stages during its service life. Transformer oil keeps the transformer cool. The breakdown voltage is that voltage at which sustained arcing takes place. If conditions are not severe, the transformer should be monitored closely. Electrical and thermal stress or chemical contamination can cause failures and reduced component life. Transformer oil has to be tested to make sure that the performance and efficiency of the transformer are good. 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. Transformer Oil Testing is a proven loss prevention technique which should be a part of any condition- based predictive maintenance program. 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. Turns Ratio Testing. 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. Its use to call transformer oil and it a little bit pricey. Transformer Oil Analysis for Maintenance Programs Anne Reygaerts, Laborelec. TRANSFORMER OIL ANALYSIS Emerald Transformer’s laboratories are capable of performing a variety of tests to determine the condition and status of your oil-filled electrical equipment. 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 byproducts are characteristic of the type of incipient-fault condition. A sample of transformer oil, taken correctly, can tell service engineers a great deal about the condition of a transformer. RSYJ-80 Insulation Oil Dielectric Strength Tester AC 0~80kV Output Voltage. 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. During the course of the oil’s service life, the stability of the oil decreases and visible changes occur and oil’s color slowly becomes darker and darker. Partial discharge is commonly explained as being intermittent. Measurements are made using high-performance liquid chromatography (HPLC). Analysis of gases in the oil can indicate insulation overheating/overloading, liquid overheating, partial discharge (corona), or arcing in the transformer. Early testing will set up a bottom line for contrast & yearly testing will design any changes inside the transformer. This allows us to certify our test results with authority that very few laboratories across India can match. Transformer oil testing is one of the important parts of a power transformer. 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