Question

The one-line diagram of a three-phase power system is as shown in the figure attached. Impedances are marked in per unit on a 100-MVA, 400-kv base. The load at bus 2 is S(sub 2) = 15.93 MW - j33.4 Mvar, and bus 3 is S(sub 3) = 77MW + j14 Mvar. I tis required to hold the voltage at bus 3 at 400 angle 0 degrees kV. Working in per unit, determine the voltage at buses 2 and 1.

The one-line diagram of a three-phase power system is as shown in Figure 32
Impedances are marked in per unit on a 100-MVA, 400-kV base. The load at bus 2
is S2--15.93 MW-J33.4 Mvar, and at bus 3 İs S3-77 MN +jl4 Mvar. It is
required to hold the voltage at bus 3 at 4000° kV. Working in per unit, determine
the voltage at buses 2 and
V1
V2
V3
j0.5 pu
j0.4 pu
3
expand button
Transcribed Image Text:The one-line diagram of a three-phase power system is as shown in Figure 32 Impedances are marked in per unit on a 100-MVA, 400-kV base. The load at bus 2 is S2--15.93 MW-J33.4 Mvar, and at bus 3 İs S3-77 MN +jl4 Mvar. It is required to hold the voltage at bus 3 at 4000° kV. Working in per unit, determine the voltage at buses 2 and V1 V2 V3 j0.5 pu j0.4 pu 3
Expert Solution

Want to see the full answer?

Check out a sample Q&A here
Blurred answer
Students who’ve seen this question also like:
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
Not helpful? See similar books
marketing sidebar icon
Want to see this answer and more?
Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*
*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.

Related Electrical Engineering Q&A

Find answers to questions asked by students like you.

Q: Single Phase equivalent Y-Y system is shown in the figure 3 below, operated by a generator with…

A: Single phase equivalent circuit as given in the circuit is shown below

Q: Draw an impedance diagram for the electric power system shown in Figure 3 showing all impedances in…

A: The equivalent circuit of a power system is the impedance diagram, in which the various components…

Q: 3. The single-line diagram of a three-phase power system is as shown in Figure Al-3. Impedances are…

A: According to the question we have to find the value of voltage across buses 2 and 1 with the help of…

Q: For the power system shown at right the impedance matrix 2 is j0.5 j0.2 3 j0.4 0.145 0.120 0.0692…

A: New voltage at a bus = old bus voltage + change in voltage

Q: In the above figure, a single line model of a three-phase power system is given. Base power 50MVA,…

A: Click to see the answer

Q: The one-line diagram of a simple power system is shown in Figure below. The neutral of each…

A: In this question we need to find a 3 phase fault at bus 3 .

Q: Figure shows the one-line diagram of a simple three-bus power system with generation at buses 1 and…

A: Click to see the answer

Q: Is it true??

A: For the transmission of the equal power to three loads impedance will need only the half of the…

Q: Problem-4: Solve at Home Problem-4, Cont... The one-line diagram of a simple three-bus power system…

A: Click to see the answer

Q: roblem 1. What does it mean by a transformer vector group Dy11 and impedance voltage 3.9%? 2. What…

A: Click to see the answer

Q: Develop impedance matrix (Z-bus) of power system network as shown in figure. [Values are given in…

A: Z bus matrix has 4 buses apart from reference bus so, matrix will be of 4x4. and…

Q: Obtain the per-unit equivalent circuit for the following one-line diagram in Figure 1. Xine = 100 Q…

A: Click to see the answer

Q: For the 3-phase system shown below, the source line voltage is 460 V, 60 Hz, 1). Phase "a" voltage,…

A: In the question, A three phase system given as shown in the figure find the each phase voltage and…

Q: Write an introduction about:  LOAD BALANCING in 3-Phase System

A: Three-Phase System -  A three-phase system is formed out of a three-phase voltage source that is…

Q: What are the quantities are specified for load bus? O Real Power and Reactive Power O Reactive Power…

A: What are the quantities are specified for load bus? Real and Reactive power Reactive power and…

Q: In the power system network shown in Figurebelowbus 1 is a slack bus with 1.0/0° per unit and bus 2…

A: According to the question we need to calculate the value of V21 and V22 .

Q: (a)Determine the voltages at bus 2 and bus 3 after first iterations using Gauss Seidel. Use flat…

A: Click to see the answer

Q: (a) A single phase, unity power factor load takes 70 A at 25 kV. Using a base voltage of 60 kV and…

A: Per unit

Q: Three single-phase two-winding transformers, each rated 400 MVA, 13.8/ 199.2 kV, with leakage…

A: Click to see the answer

Q: In zero sequence impedance net work why we need

A: Zero sequence network models on a three phase basis shown in the below figure.  The current flowing…

Q: . Which one of the following method uses weak coupling between reactive power and voltage angle?. A.…

A: Click to see the answer

Q: The impedance per phase of a 3-phase transmission line on a base of 100 MVA and 100 kV is 2 p.u. The…

A: Given, MVAold=100 MVAKVold=100 kVZpuold=2 p.u.MVAnew=400 MVAKVnew=400 kV

Q: Figure below shows the one line diagram of a 3-o system. By selecting a common base of 100 MVA and…

A: There will be three sequence networks in the given power system- Positive-sequence network…

Q: 3 Referring to a 3-phase power system as shown, a short circuit fault occurs at point F. The…

A: Click to see the answer

Q: With neat diagrams explain how a three phase delta connection to be made with three windings and…

A: Resistors, inductors and capacitors form an integral part of any electrical circuit. A source,…

Q: Refer to the 5-bus data given below. Sbase = 400 MVA, the base voltage is 15.0 kV for buses 1 and 3,…

A: a) Single line diagram of given power system here series parameter are in impedance and shunt…

Q: 5) Non minimum phase systems are also non causal. True False

A: Non-minimum Phase system: They are causal and stable systems whose inverse are causal but unstable.…

Q: 1. How do you measure three phase line currents by using two current transformers? Draw the…

A: The diagram for the three-phase system and the two current transformers are drawn below, Consider…

Q: Calculate the initial symmetrical short circuit current that will occur when a 3 phase short circuit…

A: We can re draw the given system as Let the base MVA of the system i.e SB 500MVA and base Voltage…

Q: Q2/ The bus admittance matrix of a three-bus power system is given by 7 -2 6 -4 per unit Ybus = -j…

A: consider the given question;

Q: An AC three phase distribution system (given in Figure 2), which has end user with balanced three…

A: Click to see the answer

Q: compute and get the values of branch currents (Iab, Iac, Ibc, Ibd, Icd and Ica) and the algebraic…

A: For the of writing the equations using KVL, we assume three currents in the three loops, I1,I2 and…

Q: The figure below shows the one-line diagram of a four- bus power system. The voltages, the scheduled…

A: Note: We are authorized to answer three subparts at a time since you have not mentioned which part…

Q: Example-1: In a single-loop distribution system shown in the figure consider the generator to be of…

A: A) Given fault is L-L fault:Ip=3×ER1X1eq+X2eqIp=3×1.0X1eq+X2eqAt…

Q: Differentiate Wye and Delta Connection in Three Phase System and Relate it with Computer Engineering

A: The differences between the wye and delta connection is listed in the table shown below:    Delta…

Q: Figure below shows the one-line diagram of a three-phase power system. By selecting a common base of…

A: Click to see the answer

Q: 2. The one-line diagram of a power system is shown in the figure. The three-phase power and…

A: Click to see the answer

Q: Draw the phasor diagrams for a transmission line (modeled as short transmission line) when supplying…

A: Click to see the answer

Q: The one-line diagram of a power system is shown in the figure below. A single-line-to- ground (SLG)…

A: A single line to ground fault occurs at bus 2. So the fault current will be- Ea=Genetaror terminal…

Q: For large power transformers rated more than 500 kVA, the winding resistances, which are small…

A: Click to see the answer

Q: 1.2 For each set of voltages, state whether or not the mCE voltages form a balanced three-phase set.…

A: The explanation is as folows.

Knowledge Booster
Electrical Engineering
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
  • Introductory Circuit Analysis (13th Edition)
    Electrical Engineering
    ISBN:9780133923605
    Author:Robert L. Boylestad
    Publisher:PEARSON
    Delmar's Standard Textbook Of Electricity
    Electrical Engineering
    ISBN:9781337900348
    Author:Stephen L. Herman
    Publisher:Cengage Learning
    Programmable Logic Controllers
    Electrical Engineering
    ISBN:9780073373843
    Author:Frank D. Petruzella
    Publisher:McGraw-Hill Education
  • Fundamentals of Electric Circuits
    Electrical Engineering
    ISBN:9780078028229
    Author:Charles K Alexander, Matthew Sadiku
    Publisher:McGraw-Hill Education
    Electric Circuits. (11th Edition)
    Electrical Engineering
    ISBN:9780134746968
    Author:James W. Nilsson, Susan Riedel
    Publisher:PEARSON
    Engineering Electromagnetics
    Electrical Engineering
    ISBN:9780078028151
    Author:Hayt, William H. (william Hart), Jr, BUCK, John A.
    Publisher:Mcgraw-hill Education,
  • Introductory Circuit Analysis (13th Edition)
    Electrical Engineering
    ISBN:9780133923605
    Author:Robert L. Boylestad
    Publisher:PEARSON
    Delmar's Standard Textbook Of Electricity
    Electrical Engineering
    ISBN:9781337900348
    Author:Stephen L. Herman
    Publisher:Cengage Learning
    Programmable Logic Controllers
    Electrical Engineering
    ISBN:9780073373843
    Author:Frank D. Petruzella
    Publisher:McGraw-Hill Education
    Fundamentals of Electric Circuits
    Electrical Engineering
    ISBN:9780078028229
    Author:Charles K Alexander, Matthew Sadiku
    Publisher:McGraw-Hill Education
    Electric Circuits. (11th Edition)
    Electrical Engineering
    ISBN:9780134746968
    Author:James W. Nilsson, Susan Riedel
    Publisher:PEARSON
    Engineering Electromagnetics
    Electrical Engineering
    ISBN:9780078028151
    Author:Hayt, William H. (william Hart), Jr, BUCK, John A.
    Publisher:Mcgraw-hill Education,