Answer / dp kothiyal

due to capacitance between ground - primary or ground-
secondary. for safety of human being as well as windings it
is grounded.

Answer / k.prakashchandra

To remove the influence of high voltage of primary in the
secondary due to capacitance between primary and secondary .

Answer / kvn

when it is open huge amount of voltage produced in secondary circuit of CT.which cause severe damage to power system equipments.To prevent this condition we usually shorted ct secondary.

Answer / yvr.vijji@gmail.com

due to the induction effect

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