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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.
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Answer Posted / 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.
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