Answer / joel q.

Phase angle this the angle that separate each of the line
voltages in a three phase system; normally for a 3P balance
system each of the line voltages are separated 120 degree.

If Phase voltage is 220 volts,

Phase to phase voltage is 1.732*220 = 380 volts

Answer / ramanjaneyulu

it is the ratio of true power and apperent power.
because the potential between two phases is 415v. 5%
tolerance.
the potential between phase and nutral is 230v

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