Answer / hg

1) if any one ct saturates at through fault current due to
a) high harmonic content of current in through fault current leading to high voltage appearing across secondary and the ct saturates

2) under above scenario if there is no stabilizing resistor/ damage to stabilixing resitor than relay may operate

Answer / k.prakashchandra

This may happen when bushing neutral ct is used for REF , as it is usually not identical to the line ct s

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