2.35 For the circuit shown in Figure 2.29, convert the voltage sources to equiv- alent current sources and write nodal equations in matrix format using bus 0 as the reference bus. Do not solve the equations. 0.02 0 2 0.10 0.10 j.5N j.5N ーi19 Esi = 1.0 /30° V Es2 = 1.0 /0° V HI
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- Consider Figure 3.25 of the text for a transformer with off-nominal turns ratio. (i) The per-unit equivalent circuit shown in part (c) contains an ideal transformer which cannot be accommodated by some computer programs. (a) True (b) False (ii) In the - circuit representation for real c in part (d), the admittance parameters Y11 and Y12 would be unequal. (a) True (b) False (iii) For complex c, can the admittance parameters be synthesized with a passive RLC circuit? (a) Yes (b) NoConsider Figure 2.9 of the text, Let the nodal equations in matrix form be given by Eq. (2.4. 1) of the text. A. The element Y11 is given by (a) 0 (b) j/l3 (c)j7 B. The element Y31 is given by (a) 0 (b) j5 (c) jl C. The admittance matrix is always symmetric square. (a) False (b) TrueSubject: Electrical & Electronics Engineering Course: Power Systems Question: What is GMR and GMD? Explain your answer in case of a composite conductor.
- write conclusion about Single Line Diagrams residential and industrial power systems. please write in print font do not write in hand write ? and give a good data about itDiscuss the concept of FACTS (Flexible AC Transmission Systems) devices and their role in enhancing power system stability and control.A gantry crane of weight W=100 Kg moves across a bridge with the length /=5 m. The front axle of the crane (which is nearer end A) carries 3/4W whereas the rear axle (nearer end B) carries 1/4 W. The distance of the axles is b = 1/20. Determine the maximum value of the bending moment and enter your answer in N-m units.. Remember to also show all your work (FBDs, calculation steps, etc on the handworked file) HINT: Determine the shear and bending moment equations along the beam. Assume only concentrated loads at the front and rear axles. So it’s wrong answer 1136 N can anyone how to solve for it different ?
- Suppose a power system consists of two isolated regions: a western region and an eastern region. Five units have been committed to supply 3090 MW as shown below. The two systems are separated by a transmission line that can handle a maximum transfer of 550 MW in either direction. If losses are ignored, calculate the spinning reserve for the overall system and for each region. Comment on the adequacy of the spinning reserve of the overall system, and for each region. (consider the effect on the power supply in each of the regions if the various generators fail). Repeat the above calculations and analysis if an average of 8% of the output of the generators is lost in the transmission and distribution system before reaching the load.Discuss the significance of FACTS (Flexible AC Transmission Systems) devices in enhancing power system stability.Each line of a 3-phase system given in figure is suspended by a string of 5 identical disks and the ratio of C1/C=0.1 (Shunt capacitance per self-capacitance) is given. If the string is connected to line of voltage 33kV. a) What is the voltage distribution over the unit of string and what is the string efficiency? b) When the string is supplied by a Guard Ring and this lead to add a two air capacitance of value 0.2C, 0.1C respectively to the nearest to the conductor. Find the new voltage distribution and the new efficiency.
- Discuss the concept of power flow analysis in electrical grids and its role in maintaining system stability.Since R1=18.10Kohm, R2=67.58Kohm, RC= 1.08Kohm, RE= 3.23Kohm, VCC=14.00V, Beta=241.00 in the circuit given in the figure, calculate the IC current by doing a complete analysis. When performing your operations, 2 steps will be taken after the point. choose the closest one from the stylish ones according to the +/-10% margin of error. There is only 1 correct answer to the question.An overhead line has span of 260m. The tension in the line is 1200kg while the conductor weighs 650 kg per 100 meters. Calculate the maximum SAG in the conductor. If the height of the tower is 13 meters, estimate the clearance of conductor to the ground. Draw a figure and mark values of sag, clearance, span, height of conductor etc.