1.

In Fig 12.1, If Z ₁ = Z ₂ = Z ₃ = 40 ?, determine the total power delivered to the system of loads.

Figure 12.1

2.

In Fig 12.1, If determine the total power delivered to the system of loads.

3.

For the balanced three phase generator connected as shown in Fig 12.2, the phase voltages have an rms amplitude of 440 V and are connected in the positive sequence. Determine the currents, I _a, I _b and I _c if the load is balanced with all

Figure 12.2

4.

The line voltages in the wye connected generator that supplies the loads shown in Fig 12.3 have a magnititude of 208 V and are in the positive sequence at 60 Hz. Determine all phase and line voltages in instantaneous form.

Figure 12.3

5.

The line voltages in the wye connected generator that supplies the loads shown in Problem 12.4 (Fig 12.3) have a magnititude of 208 V and are in the negative sequence at 60 Hz. Determine all phase and line voltages in instantaneous form.

6.

The line voltages in the delta connected generator that supplies. the loads shown in Fig 12.4 have a magnititude of 208 V and are in the positive sequence at 60 Hz. Determine all phase and line voltages in instantaneous form.

Figure 12.4

7.

The line voltages in the delta connected generator that supplies the loads shown in Problem...