Let Vab =300 V in a balanced Y-connected
three-phase generator with a phase
sequence acb, then Vbn is:
Select one:
a 173L-30° V
b 173L-150° V
c 173L+150° V
d 173L-270° V
e 173L +30° V
Look at the diagram:
The phase difference between Van and Vab is -30°. The phase difference between Van and Vbn is -120°. Thus, the phase shift between Vab and Vbn is -150°. The magnitude is
The answer is
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