#1 (10 Pts) Solve for X, X, and X, using Gauss elimination GE 80 KVA X=10.3 pu BLS) #4 (20 pts): The 3-phase power syste

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1 10 Pts Solve For X X And X Using Gauss Elimination Ge 80 Kva X 10 3 Pu Bls 4 20 Pts The 3 Phase Power Syste 1 (121.07 KiB) Viewed 20 times

#1 (10 Pts) Solve for X, X, and X, using Gauss elimination GE 80 KVA X=10.3 pu BLS) #4 (20 pts): The 3-phase power system shown to the left. Base values are 100 MVA and 3000 V. X1 5 -5 9 6 6 6 9 5 8 X2 = 4 6 -7 4 Ww 60 KVA X3 BUS 1. Calculate all X=0.15 pu impedances in per unit Transmission Line 2. Draw the impedance 1 Z= 47 - 1180 diagram and show related impedances #2 (20 pts): A protective relay with the given curve below provides protection for a system subject to 6000 A, 3- phase bolted fault current. For a multiple of tap setting of 4, determine the following: 1. Relay time dial setting in order to operate in 3 seconds. 2. Relay current pickup volue BISE 70 KVA X=6.2 pu TO #5 (20 pts): A 3-4 line feeding a balanced Y-Lood with phase (bl open. The lood neutral, is grounded and the unbalanced line currents are as follows: 19/02 A 10/1P Calculate: 1) The Sequence currents 2) The neutral currentl a Is #3 (5 Pts) In a 3-0 connected system, neutral current l. is equal to: a. -1 +1+ b. =(.+la+1)/2 c=0 d. (1+1+1373 1.