In a 3-bus power system network, bus-2 is a load bus having P, = 0.46 p.u, Q, = 0.16 p.u. v, = 1.03+j 0 p.u, V =1+j 0 p.u, V3 = 1+j 0 p.u. Y22 = 2.79 - j 11.03 p.u; Y12= 1.13 - j 6.03 p.u; Y23 = 1.66 - j 5 p.u; Then the accurate value of voltage at bus 2 is Select one: O a. 1 + j0 p.u O b. 0.99 - j0 p.u O . 0.927 - j 0.01 p.u O d. 0.976 - j 0.03 p.u

In a 3-bus power system network, bus-2 is a load bus having P, = 0.46 p.u, Q, = 0.16 p.u. v, = 1.03+j 0 p.u, V =1+j 0 p.u, V3 = 1+j 0 p.u. Y22 = 2.79 - j 11.03 p.u; Y12= 1.13 - j 6.03 p.u; Y23 = 1.66 - j 5 p.u; Then the accurate value of voltage at bus 2 is Select one: O a. 1 + j0 p.u O b. 0.99 - j0 p.u O . 0.927 - j 0.01 p.u O d. 0.976 - j 0.03 p.u

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.30P: Reconsider Problem 3.29. If Va,VbandVc are a negative-sequence set, how would the voltage and...

See similar textbooks

Similar questions

For a system consist from 3 buses and bus 1 is the slack bus. The data of the system are:- 0.25 Ybusj -0.2 -0.2 0.225 -0.05 -0.025 -0.05 -0.025 p.u. 0.075 V₁=1+j0 p.u., P₂+jQ=0.6+j0.25 p.u., P3+jQ3-0.8+j0.5 p.u. -0.762-j0.826 -0.762+10.826 O 0.762+j0.826 0.762-j0.826 By using Gauss-Siedal method, the voltage of the bus 2 after two iteration is
7. In the circuit below write the loop equations and set up (not solve) the matrix equation for the load current. Wiso 150 75 28 100
For a system consist from 3 buses and bus 1 is the slack bus. The data of the system are:- -0.2 -0.05 Ybus-j-0.2 0.225 -0.025 p.u. -0.05 -0.025 0.075 V₁=1+j0 p.u., P₂+jQ=0.6+j0.25 p.u., P3+jQ3-0.8+j0.5 p.u. 0.25 By using Gauss-Siedal method, the voltage of the bus 2 after two iteration is -0.762-j0.826 -0.762+j0.826 0.762+j0.826 0.762-j0.826 By using Gauss-Siedal method, the voltage of the bus 1 after two iteration is 1+j0 0+j1 -0.3-j0.6 0.3-j0.6
The figure below shows the one-line diagram of a four- bus power system. The voltages, the scheduled real power and reactive powers, and the reactances of transmission lines are marked at this one line diagram (The voltages and reactances are in PU referred to 100 MW base. The active power P2 in MW is the last three digits (from right) of your registration number (i.e for the student that has a registration number 202112396, P2 =396). [10] Starting from an estimated voltage at bus 2, bus 3, and bus 4 equals V2 (0) = 1.15<0°, V3 = 1.15 < 0°, V4 1.1< 0°. 1- Specify the type of each bus and known & unknown quantities at each bus. 2- Find the elements of the second row of the admittance matrix (i.e. [Y21 Y22 Y23 Y24]). 3- Using Gauss-Siedal fınd the voltage at bus 2 after the first iteration. 4- Using Newton-Raphson, calculate: |- The value of real power (P2), at bus 2 after the first iteration. Il- The second element in the first row of the Jacobian matrix after the first iteration. 2 P2…
What is load curve
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
Please help me with my homework. Thanks! The course subject is Fundamentals of Electronic Communications. 4. A 400 W carrier is amplitude modulated to a depth of 100%. Calculate the total power in case of SSB technique. How much power saving (in W) is achieved for SSB compared to standard
Q4/ (A) What is the voltage measurement Vx-y , for the circuit shown below. 4v 4v 20 50 y
1- Some HV - TL use Double Circuit .instead of One, why To transmit maximum voltage stability, and enhance the steady state stability. 6 To increase the capacity of HVTL and to enhance power system stability. a- All these answers are wrong. d- To increase the impedance of HVTL and to enhance power system stability. 2- Sometimes we use Red Balls with HV.TL in specific locations ? why and where a- To prevent HV.TL from lightning, it located at earth wire over roads and rivers. To give an alarm for the planes, it located at earth wire over roads and rivers. To reduce static transient voltage, it located at earth wire over roads and rivers. d- To reduce static transient voltage, it located at earth wire everywhere. 3- How you can read this impulse voltage : 1.2/50 us and at which ? Standard Durations wave front : 1.2 tr, Wave tail duration is defined as 50 m.si as in International Standard). C Durations wave front : 1.2 tr ( where tr is the transient time ), Wave tail duration is defined…
2. For the 3-bus network shown in figure, the impedances indicated are in per unit. a) Draw pu admittance diagram and obtain the bus admittance matrix Ybus for the network. b) Find the source voltages Eai and Ecz so that buses 1 and 2 have the voltages V = 120°, V2 = 1.05490° X= 0.20 pu X = 0.20 pu X= 0.36 pu Xo = 0.36 pu Xo 0.15 pu X p= 0.36 pu X- 0.36 pu X - 0.3 pu Load %3D
A network consisting of a set of generator and load buses is to be modeled with a DC power flow, for the sake of conducting a contingency analysis. The initial flows calculated with the DC power flow give the following information: f°2-4 = - 65.3 MW and fº4-5 = 13.6 MW. The following values of LODF and PTDF factors are given: PTDF54,2-4 = -0.2609, LODF2-4,4-5 = -0.6087. Calculate the contingency flow on line 2-4 due to outage of line 4-5. Select one: O a. -75.5MW O b. None of these O c. -68.85MW O d. -73.58MW O e. 75.5MW O f. -61.75MW
Resistive load of 84.6 MVA is connected to a bus bar with 9.4kV. If the base of 100MVA and 10kV are selected, the load current (in per unit) is: a. 0.7 b. 1.0 C. 0.8 d. 0.9 e. 0.6