Tan-Delta Test of Current Transformer (CT)/ Bushing in Hindi

Please note that the Supply Board which powers the kit should have an Earth. Also the Earthing of the supply Board & Test Kit Ground should be connected at the same point to the Transformer earthing.
Otherwise the kit will shown an Open Ground Indication.
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Please watch: "REF (Restricted Earth Fault) Protection of Transformer : Part 1- Introduction"
• Restricted Earth Fault...
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