Answer / shariff

Trf will fail as the un-balanced current will enter in the main windings.

Answer / arup kumar sadhu

Neutral is grounded to protect against earth faults and to eliminate transient voltages. If not earthed we would never know that a conductor has fallen down and during this if another conductor falls down ,the fault current will be 73.2 % more.With one conductor fallen on ground the voltage between healthy conductor and the ground will be 1.732 times the normal

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