Problem 4 In the power system below, the impedances of the transmission line are given. j0.1 2.0+j0.5 j0. * j0.2 1.01

Draw a 3-phase wye-connected generator with transmission lines connected to a 3-phase delta-connected load. Assume the lines connecting them have an inductance of j5 per phase. The generated voltages are 120 Vrms with phase 'a' having a phase angle of 0°. The loads are 10 Ohm resistors per phase. When drawing, make sure to label all 3 phases with voltage phasors, line inductances, and load resistances.

Assume that two load impedances Zj and Z, are connected in series with respect to each other but Z, and Z, are connected in parallel with Z, and that loads Z,, Z,, and Z, require 5 kVA at 0.8 lagging power factor, 10kVA at 0.9 lagging power factor, 5kW at unity power factor, respectively. Determine the kW required by the total load, if the frequency is 60 Hz. 1.1

For the system as shown in the following figure, convert the components to same base voltage and apparent power, by choosing 100 kVA as the base kVA and 2000 V as the base voltage for the generators. Redraw the single line diagram with the new per unit values. 15 KVA 2000 V Z=j0.3 pu 25 KVA 2000 V Z=j0.15 pu G1 G2 35 KVA 2000/8000 V Z=j0.2 pu Z=30+j100 Z=60+j120 pu O pu leee 35 KVA 8000/2000 V Z=j0.3 pu 35 kVA 2000/8000 V Z=j0.25 pu G3 10 KVA 2000V Z=j0.35 pu M 30 KVA 2000 V