QUESTION 1 In the two bus system shown in Figure 1, the generator G is operating at its rated voltage A load of 200 MW a

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Question 1 In The Two Bus System Shown In Figure 1 The Generator G Is Operating At Its Rated Voltage A Load Of 200 Mw A 1 (24.01 KiB) Viewed 37 times

QUESTION 1 In the two bus system shown in Figure 1, the generator G is operating at its rated voltage A load of 200 MW and 50 Mvar is taken from bus 2. The line impedance and the generator impedance are given in per units on a base of 100 MVA, with -12 = 0.044 + 0.5 pu, -20 = -10 = 8x10 - j4 pu = = 0.1 pu Bus, V Bus, V, P. -22 125 сер - -10 Figure A three-phase fault occurs at bus 2 through a fault impedance of Zpj0.8 per unit. Pre-fault voltage at bus 2 is equal to 1.02.209 pu. If the objective is to calculate only the pessimistic value of the fault current, find 1. The bus impedance matrix for calculating the pessimistic value of the fault current Z pu 2. The pessimistic value of the fault current If- pu 3. The short circuit capacity SCC- pu