Why resistance grounding preferred for less than 33 kV and more than 4

1.	Why resistance grounding preferred for less than 33 kV and more than 415 V?
Answer» a) To limit the earth fault current for equipment safety else, high short ckt forces dislocate in windings/bus bars etc, b) Over voltage due to arcing ground reduced c) Permits earth fault protection (not possible in ungrounded system)

Why resistance grounding preferred for less than 33 kV and more than 415 V?

Answer»

a) To limit the earth fault current for equipment safety else, high short ckt forces dislocate in windings/bus bars etc,

b) Over voltage due to arcing ground reduced

c) Permits earth fault protection (not possible in ungrounded system)