Answered: h a total length of 50 km. The apparent…

h a total length of 50 km. The apparent power S is 100 kVA, the line voltage is 3.3 kV. Calculate the: a. The voltage drop b

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 3.33P: Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage...

See similar textbooks

Related questions

Q: ) High Voltages are preferred for Transmission of Electricity. Why?

A: As per the guidelines, we supposed to answer one question at a time so please ask other questions…

Q: An overhead 3-phase transmission line delivers 1200 kW at 22 kV at 0.8 power factor lagging. The…

A: Sending end voltage= receding end voltage + voltage drop in line. Sending end power factor = cos…

Q: 3.23 Figure 3.32 shows the oneline diagram of a three-phase power system. By selecting a common base…

A: Sketch the one-line diagram of a three-phase power system The data is given in the table Base…

Q: An overhead 3-phase transmission line delivers 6000 kW at 32 kV at 0-6 p.f. lagging. The resistance…

Q: A short three phase transmission line has an impedance per wire of (15 + j20) OHMS. The sending end…

Q: A single phase transmission line is delivering 470 kVA load at 12 kV. Its resistance is 7Q and…

Q: For the power system its one line diagram is shown below: 1-Draw the reactance diagram for power…

Q: An overhead 3-phase transmission line delivers 4000 kW, 22 kV at 0.7 p.f. lagging. The length of the…

Q: 7. A single phase line is transmitting 1100 kW power to a factory at 11kV and 0.8 p.f lagging. It…

A: Here, we have given some information about a transmission line, So, we will first calculate the…

Q: A three-phase delivers 120 kVA to a three-phase load at a line-to-line voltage of 2400 V. Calculate…

A: while calculating parameters in transmission line we can consider it as star connected . apparent…

Q: B1(b) A Single-phase, 50 Hz, overhead line delivers 1500 kW at 11 kV, 0.8 p.f. lagging. The total…

Q: The resistance and reactance of the single-phase 60HZ transmission line conductors are 8.2 ohm and…

Q: A single-phase transmission line has a resistance of 0.22 ohm and inductive reactance of 0.36 ohm.…

A: Power transmission has to be done from the generation to the load side. The electrical power system…

Q: 1. A single phase overhead transmission line delivers 4000 kW at 11 kV at 0-8 p.f. lagging. If…

A: Given: The load delivered by the line is 4000kw The load voltage is 11kv The load power factor =0.8…

Q: A transmission line having a characteristic impedance of 75 ohms is delivering power to a 150-ohm…

Q: A 20km overhead 3-phase transmission line delivers 5500 kVA at 22 kV at 0.7 lagging. The resistance…

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

Q: a single phase overhead transmission line delivers 4000k w at 11 kV at 0.8 pf lagging. If resistance…

A: First we will calculate receiving end current from given values, using formula we will find sending…

Q: 2- i. Answer the questions considering Turkish electricity system. Single phase voltage in…

A: GIVEN DATA:

Q: A three-phase short transmission line connected in star has an effective resistance of 0.6 Ω per…

A: The given problem is of power system.

Q: A single phase transmission line is delivering 470 kVA load at 14 kV. Its resistance is 4 Ω and…

A: A single phase transmission line Output power S=470 kVA load at 14 kV. Transmission line resistance…

Q: Question 1) A 154 kV transmission line has a length of 100 km. The line and the conductors are given…

A: Concept: In bundled conductors, GMD and GMR increased, reducing inductance hence decreases inductive…

Q: Figure 1 shows a three-phase power system network comprises of synchronous generator, transformers,…

Q: Question 1) A 154 kV transmission line has a length of 100 km. The line and the conductors are given…

Q: An overhead 3-phase transmission line delivers 1200KW at 22KV at 0.8 power factor lagging. The…

Q: The 3-phase power and line-to-line voltage ratings of the electric power system shown in the…

A: In this question we need to find a impedance of the motor in per unit.

Q: Q1(a) An open-circuit line voltages of 8530 V were produced by a three-phase synchronous generator…

A: The solution is given below

Q: For the three-phase system shown, determine: A) The magnitude of the line current. B) The magnitude…

A: It is given that:

Q: 2.21 The three-phase source line-to-neutral voltages are given by E= 10/0, E = 10/+240, and E =…

Q: In a 3-phase overhead system, each line is suspended by a string of 3 insulators. The voltage across…

A: Given three phase overhead system , each line is suspended by a string of 3 insulators The voltage…

Q: Q2. The one-line diagram of a simple power system is shown below. The load, to b impedance, draws 90…

A: The reactance diagram is shown. A base of 40 MVA and 13.8 kV in the generator side is chosen. The…

Q: Problem 2 : A single phase line has a resistance 0.001 Ohm/meter with a total length of 50 km. The…

Q: The three phase power and line-line ratings of the below electric power system is given below: Vm M…

Q: An overhead 1 phase transmission line delivers 1100kW at 33kV at 0.8 pf lagging. The resistance and…

Q: Question 3: For the power system as shown, the line impedance is 4+j 3 ohms (primary) and zone 1 is…

A: Given ZL=4+j3 ΩCT ratio=500:5 AVT ratio=20,000:69.3 VRated voltage=34.64 KVRated MVA=24 MVA Zone 1…

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: Calculate the line currents for phase a, b and c. 2. Calculate the line to neutral voltages at the…

A: Fig: Given citrcuit (1) Although in the Y- connected system Line current =phase…

Q: Poor power factor causes greater voltage drop because the line voltage drop depends on the a. line…

A: power in circuit is p = voltage* current * power factor. voltage drop is current * line resistance

Q: a)High Voltages are preferred for Transmission of Electricity. Why? b) Why Generation Voltage Levels…

A: a) we prefer High voltage for economical consideration for fixed amount of power transmission if the…

Q: A single-line diagram of a three-phase balanced system is given below. A bolted three- phase short…

A: The single line diagram of a Three phase balanced system is given above:where, operating voltage=21…

Q: An overhead 3-phase transmission line delivers 1200 kW at 22 kV at 0.8 power factor lagging. The…

A: In this question we need to find a sending end voltage , sending end power factor voltage…

Q: Q2(a) Figure Q2(a) shows the spacing of a double circuit 3-phase overhead line. The phase sequence…

Q: A balanced 3 phase load of 30 MW is supplied at 132 KV , 50 Hz and 0.85 pf lagging by means of…

A: A balanced 3 phase load Power=30 MWVoltage= 132 kV Power factor=0.85 series Impedance of a single…

Q: A single phase 11 kV line with a length of 15 km is to transmit 500 kVA. The inductive reactance of…

A: It is given that the length of the transmission line is 15 km. It is considered as a short…

Q: The parameters of a three-phase line 200 km long are resistance/km =0.15 , inductive/km=0.5 and…

Q: What is the per unit impedance of the line from the given figure below? Generator G: 15 MVA, 13.8…

A: Given : Sbase=100 MVAVbase=161 kV

Q: Question 1) A 154 kV transmission line has a length of 100 km. The line and the conductors are given…

Q: 2. A single phase overhead transmission line delivers 1100 kW at 33 kV at 0•8 p.f. lagging. The…

Q: Assuming the voltage at the utility bus is 13.5 kV and the PV plant supplies 4.8 MW of power at 0.95…

Concept explainers

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.

Question

A single phase line has a resistance 0.001 Ohm/meter with a total length of 50 km. The apparent power S is 100 kVA, the line voltage is 3.3 kV. Calculate the: a. The voltage drop b. The line losses The voltage is stepped up to 11 kV. Calculate c. The voltage drop d. The line losses

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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.

Similar questions

Problem 1 - Series en Parallel AC networks [19] Look at the circuit in Figure 1 and determine the following: (a) Total Admittance. (b) Total Impedance. (c) Total Current (l:). (d) Current (I1) through impedance Z2. (e) Current (12) through impedance Z3. (f) Current (I3) through impedance Z4. (g) Is this an inductive or capacitive circuit? A. B Zs 220V;50HZ Figure 1 (h) Voltage across Z1. (i) Voltage across A and B. G) Voltage across Zs. Z1 = 3 + j5 ohm Z2 = 10 + jo ohm Z3 = 5 + j15 ohm Z4 = 10 – j30 ohm Zs = 20 – j30 ohm Admittance and Impedance in rectangular notation. All currents and voltage in polar notation. Take voltage as reference.
Which of the following statements is/are true? A In purely resistive circuit, the current lags voltage. (B In purely capacitive circuit, the voltage lags current. In purely resistive circuit, the current is in phase with voltage. D In purely inductive circuit, the current leads voltage.
In a 33 kV overhead line, there are 3 units in the string of insulators. If the capacitance between each insulator to pin and earth is 9% of self-capacitance of each insulator. Find distribution of voltage over three insulators and string efficiency.
What is the main direct cause of reactive power in AC system?A. Resistance of transmission linesB. Inductance and capacitance in the loadsC. Ideal transformer connected in the systemD. Power produced by generator2. “Reactive power in a system is dissipated generally as thermal energy?”A. TRUEB. FALSE3. Which of the following statements are correct for three phase circuit:A. Sum of all the three phase currents is zero in unbalanced networkB. Total power transfer to load is constant with timeC. Neutral conductor is same size in terms of material used as in single phase conductorsD. Net apparent power consumed is equal to real power
Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage windings are connected in Y. (a) For the low-voltage side, connect the windings in , place the polarity marks, and label the terminals a, b, and c in accordance with the American standard. (b) Relabel the terminals a, b, and c such that VAN is 90 out of phase with Va for positive sequence.
A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and L=40mH. (a) Determine the power factor of the circuit and state whether it is lagging or leading. (b) Determine the real and reactive power absorbed by the load. (c) Calculate the peak magnetic energy Wint stored in the inductor by using the expression Wint=L(Irms)2 and check whether the reactive power Q=Wint is satisfied. (Note: The instantaneous magnetic energy storage fluctuates between zero and the peak energy. This energy must be sent twice each cycle to the load from the source by means of reactive power flows.)
Determine the positive- and negative-sequence phase shifts for the three- phase transformers shown in Figure 3.36.
In the system shown in Figure 1, the transformers are connected star-star with both star points grounded and the generator is connected in star with its star points grounded. The per unit impedances of each element on a 40 MVA base are given in Table 1 and the voltage levels are given in Table 2. Z [p.u.] 0 2 tööt Generator 0.01 +j0.08 p.u. L Figure 1: A section of the distribution system Transformer T1 Line V BASE [KV] 0.04 + j 0.03 + j 0.15000000000000002 0.06000000000000000 Generator Table 1: Sequence impedances (p.u. on 40 MVA base) 3 T2 181. Line 3 10 Table 2: Voltage bases (kV) Load 1 Transformer T2 Load Current A load current of 11.316 kA is flowing with a lagging power factor of 90 %. Convert this to a current vector in per-unit. IL = 0.04 + j 0.06000000000000000
[Q3] Analyze the following electrical circuit by finding the currents (I1, 12 and 13) using Gauss-elimination method
X₂=0.1 1 XL +03 Soto X₁ = 0.2 X = 0.1 X = 0.1 Above is the one-line diagram of a simple power system. Each generator is represented by an emf behind the subtransient reactance. All impedances are expressed in per unit on a common base. All resistances and shunt capacitance are neglected. The generators are operating on no load at their rated voltage with their emfs in phase. A symmetrical fault occurs at bus 1 through a fault impedance Z, =j0.08 per unit. a) Using Thevenin's Theorem, determine the impedance to the point of fault and the fault current in per unit. b) Find the bus voltages and line currents during the fault. 2 O oto
A 30 MVA, 11 kV generator has a reactance of 0.10p.u.on its own base. Determine the per-unit reactance when referred to base kVA of 50,000 kVA and base kV of 33 kV.
For transferring electrical power at 220 kV, six conductors of ACSR Drake constitute a 60Hz double circuit three phase line arranged as shown below. The vertical spacing between consecutive conductors is 14ft; the longer horizontal distance is 32ft whereas the shorter horizontal distance is 25ft. a. Find the inductance per phase per mile and the inductive reactance per phase in ohms per mile. b. Find the capacitive reactance to neutral in ohm-miles. c. Find the resistance per phase per mile in ohms per miles. d. If the length of the line is 90 miles then draw an equivalent circuit of the line and analyse the open circuit and short circuit performance of the line. e. Find the maximum power we can transmit over the line. f. If the line is delivering power to a load of 20MW at 0.8 power factor lagging then find the voltage at the receiving end of the line. Also, Determine the voltage regulation, losses and efficiency of the line. g. If a fixed shunt compensation of 3 MVAr is attached at…