1.What is tan delta test and why it is perform and what will be its value ? 2.Why winding test is perform in t/f. 3.which manufactured kit is used in winding test.

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Explanation of tan delta test and winding test in transformers

Tan delta test measures the insulation quality of transformer windings
It is performed to detect any insulation defects or aging in the transformer
The value of tan delta should be low, ideally less than 0.5%
Winding test is performed to check the integrity of transformer windings
It helps to detect any short circuits or open circuits in the winding
Manufactured kit used in winding test includes a high voltage source, a current source, and a measuring instrument