what will happen if delta - star , 400V to 6.6KV step up transformer neutral i

what will happen if delta - star , 400V to 6.6KV step up
transformer neutral is not grounded, Neutral is not used
but transformer is provided with neutral.

Question Posted / venki_br1

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what will happen if delta - star , 400V to 6.6KV step up transformer neutral is not grounded, Neut..

Answer / ahmad abu alrob

In princible two things may happen during fault condition
or unballance loading:

1- No earth fault protection will be operated.

2- Any Phase/ Neutral voltage could reach the value of
Phase/ Phase voltage in magnitude.

Is This Answer Correct ?

5 Yes

0 No

what will happen if delta - star , 400V to 6.6KV step up transformer neutral is not grounded, Neut..

Answer / raghavendran

If the system neutral is not grounded then during unbalanced
condition or during any faulty condition the excess current
will flow through the phases.During the condition of neutral
shifting the the current will flow into the system
itself.This will lead to damage to the equipment and the to
the personal working with the system.

Is This Answer Correct ?

3 Yes

2 No

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