Y-Y connection) A balanced three-phase three-wire system with positive phase sequence has balanced Y-connected load with ZP = 3 + j4 Ω. The phase voltage of the source is Van = 120 ∠0o V:
a. Let RW = 0.5 Ω. Determine the total complex & average power drawn by the load and the total power lost in the line resistance. What is the PF at the source and at the load? (4)
b. Let Rw=1.0 Ω. A Loss-less conductor is installed between nodes n & N and loads are unbalanced: ZAN = 8 Ω, ZBN = 4 + j3 Ω and ZCN = 5 - j5 Ω. Find the Complex and Average Power supplied by the source and absorbed by the loads. What is the PF at the source and at the load?