Why neutrals are solid grounded above 33 kV?

1.	Why neutrals are solid grounded above 33 kV?
Answer» a) Less transient over voltage due to arcing grounds. b) Voltage of phases are limited to phase to ground voltage. (No neutral shifting) c) Allows graded insulation of transformer (low cost) d) Fast E/F protection.

Answer»

a) Less transient over voltage due to arcing grounds.

b) Voltage of phases are limited to phase to ground voltage. (No neutral shifting)

c) Allows graded insulation of transformer (low cost) d) Fast E/F protection.

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