Answer / venkata ramana

If any kind of Transformers dry type or oil type.
Neutral and Body compulsory grounded otherwise
Neutral ungrounded Harmonic's entered in o the system.
Body not grounded if any short circuits internal external
shock attack human body.

Answer / kapil

Neutral should be grounded if it is not grounded voltage will not be stable and not any safety will work if it is not grounded

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