Java Python EEE40007
Power System Operation and Control
Test 1, Semester 2, 2023
Test 1 Questions
QUESTION 1 (15 MARKS)
Shown above is a 3-bus power system. The system parameters are given below, with all the impedance values in per unit of their respective power rating.
Generators 1 and 2: 100MVA, 20 kV, X1 = X2 = 0.20, X0 = 0.05
Transformers T1: 100 MVA, 20 ∆ / 345 Y kV, X = 0.05
Transformers T2: 100 MVA, 20 Y / 345 Y kV, X = 0.05
Transmission line: X1 = X2 = 0.10, X0 = 0.30
The system is unloaded with bus voltages 1.0 per unit.
1) Choose 100MVA as the power base and 345 kV as the voltage base in the transmission line. Find the positive, negative and zero sequence networks. Ind