Answer / sujeet kumar

well i think it is only zero for a balance load in case of
balance load all current are in 120 deg so resultant is zero
but in case of un balance load it will not be zero

Answer / anshul kumar goyal

According to KCL
Cuurent coming to the point+current going away from the
point=0
Therotically same rule applies in star connection only if
load is balanced, but practically current at neutral point
is not 0 as .
To make the neutral current 0, earthing is provided in the
transformer commissioned at DT through a bush.
This earthing provides minimum resistance path for the
accessive current.

Answer / harpreet singh

due to 120 degree angle resultant is zero.so neytral ponit
having resultant is zero

Answer / niranajn

Because neutral in a star is the common connection of all
the three windings which is at zero potential

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