Q2. Draw the impedance diagram of the network shown below in per unit calculated to a common base of 50 MVA. Determine:

[answerhappygod]

Q2 Draw The Impedance Diagram Of The Network Shown Below In Per Unit Calculated To A Common Base Of 50 Mva Determine 1 (33.91 KiB) Viewed 75 times

Q2. Draw the impedance diagram of the network shown below in per unit calculated to a common base of 50 MVA. Determine: (i) the fault level (in MVA) and the fault current (in kA) for a three-phase symmetrical fault at bus no. 3, and (ii) the fault level (in MVA) and the fault current (in kA) for a three-phase symmetrical fault at bus no. 4. [25 marks) 132 kV Fault Level 3500 MVA 132 kV Fault Level 3200 MVA T 132kV/33KV 30 MVA X 0.08 pu T 132kV/33kV 30 MVA X 0.08 pu T 132kV/33KV 50 MVA X-0.1 pu bus! bus 2 Load Load 60 km OHL R-0.2/km X-0.36 km 45 km OHL R 02/km X 0.36 km Cable (1.6+43) bus 3 bus 4 Load Load Answers: 84.42 MVA: 1477 A; 87.76 MVA: 1535 A.