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 / siva
in secondary side there is a chance for single phase load,
three phase load, if its single phase load added more there
is a chance for unequal voltage in each phases. here we
need one neutral point that is refered as a reference
potential for load equalise the phase voltages
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