Compute the fault current and Voltage for a Line to Line Fault.
Compute the fault current and Voltage for a Line to Line Fault. Given Zo = 0.1 99290° pu , Zi-0. 1752900 pu , Z,-0.1 752900 pu Given Zo = 0.1 99290° pu , Zi-0. 1752900 pu , Z,-0.1 752900 pu
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] Transmission Line 0.7 Ω/km 0.7 Ω/km Suppose a single L-E fault happens at the mid-point of the transmission line. Determine the per unit phase voltage and current at point P (Choose Sbase-60 MVA and Vbase-132 kV). (4 pts) * The phase impedance...
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...
For the system below compute the fault current and the branch contributions for a three phase fault. consider the unloaded system with a pre-fault voltage of 1.1 pu. Compute the fault current and the total current of each branch. Show all calculations and tabulate the final result. For the system below compute the fault current and the branch contributions for a three-phase fault. Considerthe unloaded system with a pre-fault voltage 1.1 pu. Compute the fault current and the total current...
A three-phase load has a voltage of 1.0 pu with current 0.1 pu. The current lags the voltage by 30 degrees. A lossless capacitor is to be installed in parallel with the load to improve the overall power factor to 0.95 lagging. Find the amount of reactive power that needs to be injected by the capacitor. Select one: a. 0.0646 pu b. 0.0215 pu C. 0.0785 pu d. -0.0215 pu
The one-line diagram of a simple power system is shown in Figure 1. The neutral of each generator is grounded through a current-limiting reactor of 0.25/3 per unit on a 100-MVA base. The system data expressed in per unit on a common 100-MVA base is tabulated below. The generators are running on no-load at their rated voltage and rated frequency with their emfs in phase. Determine the fault current for the following faults giving Zo = 0.35, Z = 0.22...
Find the line-to-line source voltage Vb bc AB Zi an nN Given ZL-V3Ω and Z=JV3Ω abc phase sequence with V 120v3430° v 0 208V20% 0 360v2-60% 120V2-1200 300V -70%
The ratings of the components shown in the one-line diagram are G1: 25 MVA, 13.8 kV, x-0.15 pu G2:15MVA, 13 kV, x = 0.1 5 pu. TI : 25 MVA, 13.2/69 kV, x-0. I 1 pu T2: 25 MVA, 69/13.2 kV,x-0.220 pu Transmission line: j65 ohms/pha bus 2 BE 165Ω ISMVA e ratings of generator 1 as base valu 25MVA 13.8 kV 1 5% 69113.2 kV13kV 1 1% 13.2169k 1 1% 1- Draw the reactance diagram. 2- Find the Y-bus...
For the network shown below, the pu reactance data are equivalent sequence circuit and calculate the fault current in per unit for a bolted single line- to-ground fault at bus 2. The pre-fault bus voltages are assumed to be 1 pu given in the table. Draw the Ti T2 1 2 3 G1 G2 5 X2 Item G1 0.10 0.10 0.05 0.05 G2 0.10 0.10 0.01 T1 0.01 0.01 0.01 T2 0.01 0.01 Line 2-3 0.10 0.10 0.20 Line 3-5...
Q1. A transmission line has Zo-Z,-150 Ω and ZL-50 Ω. The propagation velocity on the line is 200 m/us and the line is 800 m long. At time t-0, a single voltage pulse of 16 V and 1 us duration is transmitted by the generator. Using relevant equations and diagrams, discuss the voltage and current pulse behavior on the line. Q1. A transmission line has Zo-Z,-150 Ω and ZL-50 Ω. The propagation velocity on the line is 200 m/us and...
2. When the terminal voltage of this motor is 1 pu, compute the starting current RMS and the full load current RMS in pu. Assume that load torque is 1 pu. Compare the real power and reactive power consumption at motor starting and at full lood 2. When the terminal voltage of this motor is 1 pu, compute the starting current RMS and the full load current RMS in pu. Assume that load torque is 1 pu. Compare the real...