Three-Phase Systems in Power Applications - Engineering

Q1:

In a certain Y-Y system, the source phase currents each have a magnitude of 9 A. The magnitude of each load current for a balanced load condition is

A 3 A

B 6 A

C 9 A

D 27 A

ANS:C - 9 A

Line voltage (line-to-line voltage) in a system is the voltage between two given phases. The other hand, Phase voltage is the voltage between the given phase and neutral, (neutral is available in star connection but not delta connection).