Answer / prajeesh

In a star connected 4 wired system the neutral must be grounded to neutralize the unbalaced current in that circuit. If the load is balanced the star point must be work as neutral.

Answer / ajayiet

it do not matter in case of
balanced supply but in
unbalanced supply it is of
great significance

we are using three transformer 33000/430 vac for three separet block.all three transformer have three LT panel separetly. can be Interconnected all three panel through bus coupler. this is permissable or not by state electricity board.

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