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Why we should use delta connection in primary and star
connection in an distribution transformer, which converts
400v a.c. voltage to 33kv.
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Answer Posted / ravishankar.m
Generally we recevied power supply from HT.In HT side there
will be not available neutral source so in primery side we
given delta connection.But in secondary side we must need
nuetral for three phase & single phase equipments so we
will create from oueself (create from earthings) so here
the connection must be a star connection.
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