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Why not connect relay
Y phase for over
current and earth fault



Why not connect relay Y phase for over current and earth fault..

Answer / k.prakashchandra

You can provide OCR to Y phase . EFR is connected to any
phase . In case of 2 OCR + 1 EFR scheme ,EFR is not
connected to Y phase . You think so ,as OCR s are provided
to R and B phases

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