Problem 2 (10 pts) 132 kV TL 40 km 1 pu mid-point L-E fault 60 ΛΤΑ TL: Transmission line. L-E fault: Line-to-earth fault. Z. 0.07 pu 0.1 pu Generator 0.1 pu 0.1 pu 0.1 pu Transformers 2.5x Z] Transmi...
PROBLEM: A 230-kV, 50 Hz, three-phase transmission line is 120 km long. The line has a per phase series impedance of z-0.05 +j0.45 Ω per km, and a per phase shunt admittance of y 3.4x10-6 Siemens per km. The line delivers (at the receiving end) 200 MVA, 0.8 lagging power factor at 220 kV. Now consider two cases: A- Assume that shunt parameters of the transmission line are ignored (i.e. even if this is a medium length transmission line, under...
I need help in matlab codes please
Single line to ground fault analysis Example 9.4 Problem 1 A three-phase, il kV, 30 MVA alternator with grounded neutral has a direct axis subtransien pu respectively based on system base. A single line to ground fault has occurred in phase a. Determine the fault current, line to ground voltages in pu. t, negative sequence and zero sequence reactances of 0.2 pu, 0.3 pu and 0.1 Solution: Phase voltage E.0 pu From equation...