Should Transformer Neutral Be Grounded?

The neutral should never be connected to a ground except at the point at the service where the neutral is initially grounded (At Distribution Transformer). This can set up the ground as a path for current to travel back to the service. Any break in the ground path would then expose a voltage potential.

Why must a transformer neutral be grounded?

Neutral earthing resistors are used to limit the fault current in transformers When a phase to earth occurs, the fault current is limited only by the soil resistance. This current, which can be very high, can damage the windings.

Does neutral need to be grounded?

It can be stated that Neutral can be grounded, but Ground is not neutral. A Neutral represents a reference point within an electrical distribution system. ... A Ground represents an electrical path, normally designed to carry fault current when a insulation breakdown occurs within electrical equipment.