Two voltage sources feeds a three bus system. The values are as shown in the figure attached.Determine the following: (The magnitude and angle of each of the generated voltages may be assumed to remain constant.)
1.1 Determine the Zbus by direct formulation. (Round all the elements off to two digits after the coma) (10)
1.2 Determine the voltage at each bus. (4)
1.3 The current drawn by a capacitor having a reactance of 3.0 per unit connected from bus 3 to neutral; (3)
1.4 The change in voltage at each bus when the capacitor is connected at bus 3 (3)
1.5 The voltage at each bus after connecting the capacitor. (3)
1.6 Voltage source 1 fails and is replaced by a voltage source of value 1.75pu
angle 00 and internal reactance of j1.0p.u. Recalculate problem 1.2 above. (3)
1.7 With the new voltage source in place, calculate the current drawn by a capacitor having a reactance of j0.45p.u. connected from bus 3 to neutral.
1.1 Determine the Zbus by direct formulation. (Round all the elements off to two digits after the coma) (10)
1.2 Determine the voltage at each bus. (4)
1.3 The current drawn by a capacitor having a reactance of 3.0 per unit connected from bus 3 to neutral; (3)
1.4 The change in voltage at each bus when the capacitor is connected at bus 3 (3)
1.5 The voltage at each bus after connecting the capacitor. (3)
1.6 Voltage source 1 fails and is replaced by a voltage source of value 1.75pu
angle 00 and internal reactance of j1.0p.u. Recalculate problem 1.2 above. (3)
1.7 With the new voltage source in place, calculate the current drawn by a capacitor having a reactance of j0.45p.u. connected from bus 3 to neutral.
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