1) find Yous and Voltage at various buses.jo.25 pujo. 25 pum·j0.125 pujo. A pumjo.2 pujo.25 pujo. 2 puj0.125 pujo. 25 pujo. A pum3jo. 1 pu(1A(1)jo.1 pu12-90° (1-jo.%-jo.q(↑ 12-90°j1.15 pu3j1.15 pu1.2520° pu0.85L-45° puO

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Answered: 1) find Yous and Voltage at various…

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.19P

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The per unit impedance of a generator on a 60 MVA, 20 kV base is j0.09 p.u. The per unit impedance to a 100 MVA, 20 kV base will be (a.) j0.054 p.u. (c.) j 1.5 p.u. (b.) j0.54 p.u. (d.) j0.15 p.u.
A generator operating at 50 Hz delivers 1 p.u. power to an infinite bus through a transmission circuit in which resistance is ignored. A fault takes place reducing the maximum power transferable to 0.5 p.u. Where as before the fault, this power was 2.5 p.u. and after the clearance of the fault, it is 2 p.u. The value of 8 is max
2. When a large shunt capacitor is suddenly connected in parallel with the load bus in the distribution feeder, what would happen to this bus current? O A. Increase B. Decrease D. None of Above
Answer it i will thumbs up Dont copy paste..
Needing assistance with the attached pic.
Analyse several voltage and current situations in different loading scenarios in a simplified radial (transformer to consumption) medium-voltage power system example. There are only 2 nodes in the 35 kV line – node 0 from the 110/35 kV and node 1 with one consumer. The physical characteristics of the line and the loading scenarios are individualized for each student – please see the attached file Excel “WM9P3 Task1 data” for your particular data set. Briefly reflect on the complexity of the calculations for known input or output voltage, as well as for fixed or voltage-dependent consumption in this simple power system model. Analyse and discuss the sensitivity of the voltage drop [in % of amplitude and the degrees of phase] with respect to the current level [in %] and to the power factor.
A 13.2 kV, 60 Hz, 3-phase synchronous generator is connected in star and its neutral point is earthed while inductance per phase is 0.02 Henry. The generator is connected to a bus bar through a circuit breaker. The distributed capacitance up to circuit breaker between phase and neutral is 0.015 micro Farad. Determine the following: (i) Peak re-striking voltage (in kV) across the contact of circuit breaker; (ii) Frequency of oscillations (in kHz); (iii) Time to occurs first peak re-striking voltage (in micro second) and (iv) The average rate of rise of re-striking voltage (in mega volts per second)
A generator operating at 50 Hz delivers 1 pu power to an infinite bus through a transmission circuit in which resistance is ignored. A fault takes place. reducing the maximum power transferable to 0.5 pu whereas before the fault, this power was 2.0 pu and after the clearance of the fault, it is 1.5 pu. By the use of equal area criterion, determine the critical clearing angle.
Q3/ For the system shown in figure. The generator is supplying 1.0 pu MW power under prefault condition. When three-phase fault occur at point F. What should the value of fault reactance must be to make the critical clearing angle equal to 58.9. Sc j0.1 j0.1 10.21 BE j0.38 38 j0.21 IEgl-12 pu 10.19 F 10.19 IVI-1.00 pu j0.1 j0.1 Q4/ Figure below shows the one-line diagram
Take a look at the attached screenshot. Then, write down in words you guess as to what would happen to the circuit if the below were to be adjusted. a) Frequencyb) Amplitudec) DC Offsetd) Time per Division
How did 2 + j8ohms become 2 + 2 + j8ohms and then 8.9 ∠63.4? Like what did you do and why?
A 20 Ohm resistor is in series with a 30 Ohm Inductive reactance. If they are connected to a 40 Volt a.c. source, what is the phase angle between the voltage across the Inductive reactance, and the supply voltage (in degrees)? **Only give the magnitude. If you believe the current is lagging OR leading, give a positive value for the angle " I

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