Use the building algorithm to construct the bus matrix for the one-line impedance diagram shown in Fig. ). Note that all values are expressed in per unit (pu). 50.2 j0.4 j0.8 j0.4 j0.4

Question 11 Construct the Z bus by using the algorithms for below network by following the bus order of 0-1-2-3. j0. 1 ll j0.05 jo-5 j1.25 Reference None of the given [j0.565 j0.358 j0.358 j0.358 j0.425 j0.425 j0.358 j0.425 j0.425] [j0.465 j0.368 j0.368 j0.368 j0.415 j0.415 j0.368 j0.415 j0.435 ] [j0.365 j0.338 j0.338 j0.338 j0.405 j0.405 j0.338 j0.405 j0.455 ]

With the system shown in figures, use 100MVA as system base, and 230 kV as base voltage along the transmission line. 1. Based on the system diagram with buses labelled accordingly what should be the rank of the square Y-bus matrix? 2. Build the Y-bus matrix without the Load. What is the element Y11 in susceptance value? 3. Build the Y-bus matrix without the Load. What is the element Y22 in susceptance value? 4. Build the Y-bus matrix without the Load. What is the element Y12 in susceptance value? 5. If you are to convert the real power load to a shunt conductance, what is the value of the conductance in per unit?

Using N-R method power flow solution, find AP2, AP3 and AQ2 also the first row and first column elements of the Jacobian matrix of the 3-bus system shown in fig.2. below. The bus data given in below table.The series impedance of each line is (0.0197 + 0.0788) p.u. and the shunt admittance at each end of the line is j0.02.Assume V2 as 1.0 + j0 for an initial start. Bus No. PG QG PL QL Bus Voltage 1 1.04 + j0 Unspecified 1.04 + j0 2 0.5 1.0 3 1.5 V, - 1.04 0* PU 0.5 1.0 V,- 1.04 Pu t 1.5 Fig.2.

Using N-R method power flow solution, find AP2, AP3 and AQ2 also the first row and first column elements of the Jacobian matrix of the 3-bus system shown in fig.2. below. The bus data given in below table.The series impedance of each line is (0.0197 + 0.0788) p.u. and the shunt admittance at each end of the line is j0.02.Assume V2 as 1.0 + j0 for an initial start. Bus No. PG QG PL QL Bus Voltage 1 1.04 + j0 0.5 1.0 Unspecified 3 1.5 1.04 + j0 v,-1.04 PU V,- 1.04 u 15 Fig.2.

load flov Question 4 i. What the different type of buses used in load flow analysis and what are their characteristics? Consider the electrical power system network connector shown in Figure Q4. Y10 GND 4 Y20 Determine the numerical YBUS matrix. GND Figure Q4 Develop the admittance matrix (YBUS) for this network Assuming the GND admittances are removed from the (YBUS matrix) i.e. as they are both negligible and given the admittance of the link Y12 is: 3.473-119.696 s

Question 3: The 3-bus system is shown in the figure, Two lines are connected between bus 1 and bus 2 is having a mutual effect of M = j0.01(additive). Find the Y22 element of the Y-bus matrix of the system. j0.3 pu j0.3 pu 10.3 pu j0.3 pu

Using N-R method power flow solution, find AP2. AP3 and AQ2 also the first row and first column elements of the Jacobian matrix of the 3-bus system shown in fig.2. below. The bus data given in below table.The series impedance of each line is (0.0197 + 0.0788) p.u. and the shunt admittance at each end of the line is j0.02.Assume V2 as 1.0 + j0 for an initial start. Bus No. PG QG PL QL Bus Voltage 1.04 + j0 Unspecified 1.04 + j0 1 2 0.5 1.0 1.5 V,- 1.04 PU Fig.2.

The per unit bus impedance matrix for the power system network of Figure Q1 is given by; r0.240 0.140 0.200 0.2001 Zbus = i0.140 0.2275 0.175 0.175 0.200 0.175 0.310 0.310 Lo.200 0.175 0.310 0.500 j0.20 j0.15 j0.20 j0.20 j0.50 j0.20 j0.30 3 j0.19 Figure Q1 Evaluate the fault current, bus voltages and line currents during fault, when fault occurs at bus 2 with Z: = j0.0225.

Using N-R method power flow solution, find P2 calculate, and Q2 calculate also the third row and second column and third row and third column elements of the Jacobian matrix of the 3-bus system shown in fig.2. below. The bus data given in below table. The series impedance of each line is (0.0197 + 0.0788) and the shunt admittance at each end of the line is j0.02.Assume V, as 1.0 + j0 for an initial start. V,1.04 PU asj10 Fig.2. Bus No. PG QG PL Bus Voltage 1 1.04 + j0 2 0.5 1.0 Unspecified 1.04 + j0 3 1.5