Answer Posted / aruna dixit

A Three phase Loads on a 3 phase supply system is a Balanced
load because it draws equal current from each phase. Three phase
Motors, Converters; Rectifiers using 3 phase input supply are
common examples of Balanced loads.
b. A single phase / 2 phase loads on a three phase system is
called
Unbalanced load. Normally Unbalanced loads have to use a
neutral wire in the system. The 2 phase loads may not require a
neutral.

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