5 Draft a positive sequence 3 phase wye 3 wires supply connected to unbalance wye connected loadings Z1 = 3+j292, Z2 = 2+j292, and Z3 = 3-j292 connected to terminals L1, L2 and L3 respectively. Calculate all the L1, L2, L3 and N terminals voltage between star point of load. Take VL1-L2 is 380/0° V as reference.

A three-phase alternator generating unbalanced voltages is connected to an unbalanced load through a 3-phase transmission line as shown in figure. The neutral of the alternator and the star point of the load are solidly grounded. The phase voltages of the alternator are Ea = 1020º, Eb = 102-90°, Ec = 10/120⁰ E E E The positive sequence component of the load current is (A) 1.3102-107⁰ A (B) 0.3322-120° A (C) 0.9962-120º A (D) 3.5104-81⁰ A +) + j1.002 0000 j1.002 0000 j1.0Ω vovo j1.0Ω 0000 j2.002 voor j3.002 oooo

15) Kirchhoff's Voltage Law (KVL) states that                                                                A) the product of the phasor voltages around any closed path must equal zero. B) the sum of the phasor voltages around any closed path does not have to equal zero. C) the sum of the phasor voltages around any closed path must equal zero. D) the sum of the phasor voltages around a closed path cannot include "through the air."

Explain the concept of three- phase power and its advantages over single phase power. please don't use Al answer