Restricted Earth Fault (REF) Protection of Transformer || REF Protection Philosophy & Relay Settings

[@sanjayakumarpatel775]

Nice video

[@360Engineer01]

Thanks

[@azadmaurya7747]

Please provide a lecture about VCB

[@dodiyasanjay7777]

Transformer cooling system video

[@Deepak_Kumar1993_]

Where are you from 😊

[@prabhatsingh5377]

In REF protection in which side CT Should be earthed ? In that video you have not earthed the CT neutral

[@360Engineer01]

CT earthing should be at one place only, and it shall be such that Both Neutral CT & Phase CT should see towards Trafo star point (As CT secondary direction is always away from the earth point, and in differential protection both ends CT direction should be opposite).
Based on above, CT secondary earthing shall be either towards Ground side of Nuetral CT or towards trafo load side of Phase CT.