Answer / s ray

The vector sum of three phase current is zero i.e neutral current is zero. but deu to load unbalance we get a small neutral current

Answer / banalasanthosh

whenever a phase is to feed current to nuetral, remaining
two phases also share the current with nuetral.... that
means Ir current flow through yellow , blue and nuetral
also. thata why total current willnot be presented in nuetral

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