If a Power Transformer Fails and the transformer
manufacturer suggest that "Do all electrical test on the
transformer?".
What are the test to be conducted in this condition?
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Answer Posted / satya dev
electrical test to be performed are as under.
1- Magnetic balance test.
2- Megnetising current test.
3- Turn to turn ratio test.
4- Vector group test
5- Knee point test
6- Winding ressistance test( Phase - Phase - Eatrh)
7- Meggering of bushing.
8- Tan Delta test.
All test must be performed after disconned to the
transformer from the Input & output supply.
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