ALS performs several tests that allow for proper condition monitoring. Transformer oil keeps the transformer cool. Oil pressure test to check the leakages at joints and gaskets on the transformer; Special Tests. Acid Number D974/ D664 We are accredited from NABL for high voltage electrical transformer testing. Routine testing of transformer oils and insulating oils on a regular schedule is an accepted industry practice. Its use to call transformer oil and it a little bit pricey. 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. Oil is used both to cool the transformer and to insulate internal components. To improve the cooling process, radiators or “fins” are installed on the side of a transformer. Transformer Oil Testing. Each test is an indication of how suitable the insulation liquid is for service. The paper insulation which is normally used to insulate the windings of a transformer is a cellulose product. RSDDG Switchgear Testing Equipment for Current Load Test and Temperature Rise Test. As the insulating materials in a transformer break down due to thermal and electrical stresses, gaseous byproducts are formed. In addition, dissolved gases are extracted from the oil sample, separated, and quantified in a gas Chromatograph. The oil pressure test on transformer to check against leakages past joints and gaskets is included. Skip to main content Call +1-800-655-4473 Transformer excitation current test : 5 years. Measures the presence of soluble contaminants and oxidation products in transformer oil. This test does not measure the water content in the transformer paper insulation. RSDDG Switchgear Testing Equipment for Current Load Test and Temperature Rise Test. 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. Measurement of acoustic noise level. Transformer Oil Analysis for Maintenance Programs Anne Reygaerts, Laborelec. If a winding shorts from turn to turn, or phase to phase, or phase to ground, arcing will occur and the transformer will fail. A larger quantity of oil is needed for these tests. To evaluate the quality of the transformer oil testing, three steps are important to be carried out. Transformer Insulating Oil Test Methods (ASTM) A table of the most common ASTM … A good oil analysis program provides equipment owners the ability to determine the current condition of a transformer and schedule prevetive maintenance so as to avoid possible failures in future. Reliable testing … ALS performs several tests that allow for proper condition monitoring. Transformer Oil Testing is a proven loss prevention technique which should be a part of any condition-based predictive maintenance program. Special tests help to provide useful information to the user. The acid number is expressed as milligrams of KOH required to neutralize all acids in a gram of oil and indicates the degree of oil aging. Transformer oil testing is one of the important parts of a power transformer. Our transformer oil testing services offer you a complete solution to your transformer testing needs. (PCB) content. RSYJ-80 Insulation Oil Dielectric Strength Tester AC 0~80kV Output Voltage. Partial discharge is commonly explained as being intermittent. Transformer oil analysis is essential in accessing where on the system individual transformer units will likely fail. It is a characteristic of the oil’s quality and purity and acidity. Our labs cover the following: PCB in Oil per Gas Chromatography The transformer turns ratio test is used to make sure that the ratio between the … It is well known that regular oil analysis is useful in monitoring the condition of engines, turbines and other oil lubricated equipment. For more information regarding transformer oil testing you can read our following article: Transformer Oil Testing: Types, Methods and Analysis. We have invested in the construction of industry leading infrastructure to allow us to service the full spectrum of requirements including:. Higher values are indicative of a problem. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful. So, insulation overheating measurement is also transformer oil testing methods. Power factor Dissolved Gas Analysis is the single most important test performed on oils from transformers. Furan test is used to determine the life of a transformer and condition of transformer oil in transformer oil. Furanic Compounds In Oil . If you disable this cookie, we will not be able to save your preferences. Special Tests of transformer include 1. Transformer Oil Analysis tests identify whether the insulating properties are acceptable by measuring degradation and contamination of the oil. Title: Microsoft Word - TROILANA.DOC Author: User Created Date: 6/15/2005 8:47:19 AM Transformer oil has to be tested to make sure that the performance and efficiency of the transformer are good. The dielectric breakdown voltage is measured by applying a voltage between two electrodes under the oil. explore. Dissolved gas analysis (DGA) is the study of dissolved gases in transformer oil.It is also referred to as a DGA test. When arcing occurs in the area of the windings, the usual result is de-tanking of the transformer, and a rewind conducted. Servicing the oil before it becomes aggressive against the solid insulation is the key to extending the service life of your transformers. Electronic on-line dissolved gas detectors can be connected to important or distressed transformers to continually monitor gas generation trends. 2. Pour point of transformer oil is a valuable property mainly at the places where the climate is icy. Some transformer oil tests can be carried out in the field, using portable test apparatus. Regular monitoring of the oil’s quality and condition is a part of the process of servicing electric power equipment. Transformer Oil Sampling & Testing. It also insulates the transformer and allows electrical components to be more compact than free air apparatus. 4. 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