The Megger test is a method of testing making use of an insulation resistance meter that will help to verify the condition of electrical insulation. This is certainly not a new test, and has been in use for a number of years. One of the reasons that it is still such a popular option is because it is nondestructive. The test does have a limit of between 500 and 1000 volts, so it may not always be able to detect some insulation punctures. It will usually show the amount of moisture, the leakage current no the moist or dirty areas of the insulation, and winding faults and deterioration.
The best way to make sure that you have the right information and readings is to make sure that you are using the right test equipment. Fortunately, quite a bit of high quality equipment is on the market today.
The History of the Megger Test
The Megger, known also as the mega-ohm tester, has a long history. The device has been in regular use since 1903, but the history dates a bit further back to 1889. The device was quite popular by the 1920s. The term Megger is actually something of a nickname, since the device measures mega-ohms and it was a meter. It is a combination of the two words.
Through the years, the design and purpose of the test remains the same. The only thing that has really changed is the design and the level of quality for the testers themselves. Today, it
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