Calculate the impedance at P.U. and pass the one-line diagram to impedance diagram.
We need at least 9 more requests to produce the answer.
1 / 10 have requested this problem solution
The more requests, the faster the answer.
Calculate the impedance at P.U. and pass the one-line diagram to impedance diagram.
Calculate the impedance at P.U. and pass the one-line diagram to impedance diagram. 44 1. (3) T2 Locul www (M) G. Ti Li ut سيليك، لرللر ( Δ ZN px 100km 6 62 AB 1 Zn L2 150 km ww www ܐܬܐri G.: 40 MUA; 138 kV; X, = x2 = 20% ; Xo = 10% Ge: 40 Mi ; 85 kV; xXx = 15% ; X = 1% Ty : 50 MVA; 138/23OKU; X = 18 % T2: 50...
Question3 3000 kVA / 0.09 p.u. Alternators 2 40004VA 0.12 p.u 6kV Busbars 4000 LVA 0.05 p.. Transmission Lines Lines 4000 kV 0.05 p.ย. Step-Up Transformers 5000 kVA 5000 kVA 0.06 р.u. 0.06 p.u. 11 kV Basbars -150 kVA 0.05 pu. Secondary feeder line Step-Down 1500 kVA 0.03 p.u 415 V Busbars Fault Point Figure Q3 Figure Q3 shows a power system comprising two three phase alternators supplying 6 kV busbars. I wo paralilel transmission lines fed from these busbars...
The one-line diagram of a power system is given below. Draw the impedance diagram of the given system in per unit by selecting a common base of 200 MVA and 160kV on bus 4 for fault analysis. (20pts) 60 km 40 km Grounded Infinite Bus 4 6 5 60 km 60 km 60 km 80 km G BE 60 km 1 Tr N 3 G: 150 MVA, 10.8kV, X®G= 0.12 pu, Xa=0.8 pu Tr: 160 MVA Ratio: 11.2kV/154 kV Xtr=0.12...
The Fig. P2.1 shows the one-line diagram of a simple four-bus system. Table P2.1 gives the line impedances identified by the buses on which these terminate. The shunt admittance at all the buses is assumed negligible (a) Obtain the bus admittance Ygus assuming that the line shown dotted is not connected (b) (i) What modifications need to be carried out in「BUs If the dotted line is now connected? The impedance of the line is (0.01 +j0.1) pu (ii) obtain the...
A 150 MVA, 22/220 KV transformer has p.u. resistance of 1.2% and reactance of3.5%.The magnetizing impedance is 136.6+ 185j p.u. The transformer supplies the rated current at 0.92 PF. Find the Equivalent circuit referred to the secondary. Find the Voltage regulation Find the copper losses and the core closes of the transformer. Find the efficiency of the transformer.
Exercise 3 Consider a 2 generator 4 bus power system shown in Figure E3. The impedance data of the network in p.u. are given in Figure E3. A bolted symmetrical three phase fault occurs at bus 4. Assuming the prefault bus voltages as I p.u., calculate the fault current and the current delivered by the generators during the fault and the bus voltages during the fault. j0.12 0.05 0.16 j0.18 j0.12 0.15 0.05 j0.12 j0.1 j0.14 4 (2 Figure E3:...
Consider the system shown in the single-line diagram of Figure 3. All reactances are shown in per unit to the same base. Assume that the voltage at both sources is 1 p.u. a- Find the fault current due to a bolted- three-phase short circuit at bus 3. [10 points] b- Find the fault current supplied by each generator and the voltage at each of the buses 1 and 2 under fault conditions. [10 points] 0.1 p.u 0.06 ?.u. 0.25 p.11....
Consider the system shown in the single-line diagram of Figure 3. All reactances are shown in per unit to the same base. Assume that the voltage at both sources is 1 p.u. c- Find the fault current due to a bolted-three-phase short circuit in the middle of line 1- 3. [5 points d- Find the voltages at buses 1 and 2 under the fault conditions of part c above [5 points] 0.225 pu. 0.035 pu. 0.2p.u ? 0.15 p.u. 0.215...
32 1. There are three transmission line and one 4 transmission line (all characteristic impedance of transmission line is v2zo and assume lossless line) and there are two loads of load impedance Zo 214 iz Zi=?> 2/4 A/4 short 32/4 (a) Find the input impedance (Zn) (b) If the input power is 1 watt, find the transmitted power to each load Zo 32 1. There are three transmission line and one 4 transmission line (all characteristic impedance of transmission line...
Figure 1 Single line diagram b2 b3 b1 b4 grid Τι 13 A power system single line diagram is shown in Figure 1. The single line diagram shows a synchronous generator G connected to a large 50 Hz grid via its unit transformer T and a network of three transmission lines. Relevant details of the grid, transformer, generator and overhead lines are provided in Tables I,II,II & IV respectively. A double line to ground fault occurs at bus 3 Questions....