How To Test A Transformer With A Megger. The megger test is a method of testing making use of an insulation tester resistance meter that will help to verify the condition of electrical insulation. If the megger gives very low mega ohm resistance this, mean that the winding wire is perfect (or have continuity).
In this video we demonstrate how to run all tests concurrently on a current transformer using the megger mrct and the included instrument transformer managem. The procedure of the insulation resistance test are given below. The megger insulation tester is a small, portable instrument that gives you a direct reading of insulation resistance in ohms or megohms.
We Will First Disconnect All The Line And Neutral Terminals Of The Transformer.
The proper life management of transformers requires a variety of information about the transformer’s condition, which cannot be provided by one test alone. In addition to the obvious faulted transformer winding (i.e., an open winding or shorted turn), subtler problems can be detected. The test measures the insulation.
If The Megger Gives Very Low Mega Ohm Resistance This, Mean That The Winding Wire Is Perfect (Or Have Continuity).
The insulation resistance test is of value for future comparison and also for determining if the transformer is to be subjected to the applied voltage test.the winding insulation resistance test is a dc high voltage test used to determine the dryness of winding insulation system. First, disconnect all the line and neutral terminals of the transformer. The megger insulation tester is a small, portable instrument that gives you a direct reading of insulation resistance in ohms or megohms.
Be Sure To Isolate The Transformer Before Attaching The Lead Connectors.
In this video we demonstrate how to run all tests concurrently on a current transformer using the megger mrct and the included instrument transformer managem. Attach the test lead connectors to the megger testing instrument, then to the test item. By measuring a transformer's winding resistance from one hv transformer bushing to another, transformer resistance testing can reveal a great deal of information about the transformer.
Program The Selector Switch To Meet The Test Voltage Requirement.
Mager’s leads are connected to the lv and hv bushing studs to measure the value of insulation resistance ir between the lv and hv windings. The megger test or insulation test is carried out to ensure the healthiness of the overall insulation system of an electrical power transformer. For details, visit our transformer application page.
The Transformer Resistance Testing Will Reveal A Lot Of Details About The Transformer By Measuring The Winding Resistance Of A Transformer From One Hv Transformer Bushing To Another.
Megger’s comprehensive set of transformer testing tools provides a complete view of your transformer’s health. In this video we show you how to test a capacitive voltage transformer using megger's mrct test unit and the instrument transformer management system softwar. The megger test is a method of testing making use of an insulation tester resistance meter that will help to verify the condition of electrical insulation.