Answered: Why AC current is preferred over DC…

Engineering

Electrical Engineering

Why AC current is preferred over DC current for high power electrical circuits?

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

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.2MCQ: Overhead transmission-line conductors are bare with no insulating cover. (a) True (b) False

See similar textbooks

Related questions

Q: What are power loss and voltage drop and how are they related?

A: The voltage drop across the resistor is defined by the ohm's law. The voltage difference across the…

Q: What is the reason why a DC system is not widely used for delivering power over a long distance…

A: 1) Transmitting DC over a long distances is not that much efficient. 2) DC voltage undergoes a lot…

Q: Explain about the significant of using copper in undersea transmission system?

A: According to question we have to explain about, significant/advantages of copper in undersea…

Q: Factors in selecting service conductors. Factors in selecting generator

A: (a)There are number of factor sin choosing the service conductors that are mentioned below.

Q: Explain AC and DC Bridges With Help of diagram ?

A: The source, balanced detector, and four arms make up the ac bridge. The…

Q: Assuming Constant Transmission Efficiency, if voltage is increased 'n' times, the size of the…

A: Given, Assuming constant transmission efficiency and the voltage is increased n times

Q: the course is power transmission system... what are the limitations of Screened cables? why we…

Q: 14 Open- and short-circuit test has been performed of a synchronous machine 45-kVA, three- phase,…

A: Unsaturated synchronous reactance is calculated using Vph on airgap line and armature current at…

Q: What is the difference between ampacity and temperature of overhead lines?

A: The temperature of the overhead transmission line is defined as the heat produced in the line by…

Q: In Kelvin's law, the total minimum cost corresponding to any cross section of conductor is

Q: Airframe Electrical System Question: What is the temperature operating limit of tin-coated…

A: The temperature operating limit of tin-coated copper-stranded electrical wire (600 V rating) is…

Q: Using bundled conductors, corona effect will ______________ 1- increase 2- not change 3-…

A: - Bundling of conductors is done to increase the current carrying capacity of transmission lines and…

Q: d) Overhead Transmission Lines are preferred for Transmission of Power for Long Distances, why?

A: Long distance power transmission are operated at high voltage so at this voltage underground cable…

Q: What is granding of cables? Explain.

A: to explain grading of cables

Q: Which is better Ac generator or Dc generator? both having same voltage output. Explain.

Q: Power Losses Are Less for High-Voltage Transmission What percentage of the power is lost in the…

A: The losses largely depend upon that the types of operations of the transmission line. The losses…

Q: In an overhead system, the basis of comparison is the maximum voltage between conductor and ground.…

A: An overhead power line is a structure that transmits electrical energy across long distances in…

Q: Overhead Transmission Lines are preferred for Transmission of Power for Long Distances, why?

A: An overhead power line is used in electric power transmission and distribution to transmit…

Q: What is the purpose of Feeder and Distributor in Power distribution systems?

A: In this question we discuss about purpose of feeder and distributor in power distribution system.

Q: What is the reason why a DC system is not widely used for delivering power over a long distance…

Q: Airframe Electrical System Question: Why is bare copper electrical wire not suitable for aircraft…

A: The reason why Bare copper is not suitable for aircraft use is that:It develops a surface oxide…

Q: Q6) Explain by drawing a block diagram of a power supply?

A: Draw the block diagram of the Regulated power supply.

Q: 4. What is voltage regulation of line?

A: Voltage regulation is the change in receiving end voltage from no-load to full load expressed as %…

Q: Airframe Electrical System Question: Why should solid, round conductor wire be avoided in aircraft?…

A: Solid, round conductor wire should be avoided in aircraft because, due to flight vibration and…

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

A: As per bartleby expert policy, only one individual question is to be answered. Higher voltages are…

Q: How does rise in voltage at the receiving end of an open circuited line depend upon the length of…

A: Given:-

Q: Overhead Transmission Lines are preferred for Transmission of Power for Long Distances, why? Note…

A: The explanation is as follows.

Q: Explain why solar drying of agricultural products is better than open air method?

A: The detailed answer is solved below according to the given parameters and instructions in the…

Q: ネレ E. Ja, 19

A: From this phasor diagram, we can understand there is a voltage V and two current Ia1 and Ia2. and a…

Q: Identify the parts of the wind power system shown.

A: To identify the parts of a wind power systems

Q: In an ungrounded electrical systems with conductors installed in grounded metal raceways and…

A: In an ungrounded system, the system has no direct connection with the grounding electrode. When the…

Q: Which bus of the power system covers the power losses occurs in it?

A: PQ BUS gives the power loss in it , it is also called the LOAD BUS

Q: If a cable has a velocity factor of 0.75, what length of cable is required for a 90° phase shift at…

A: Given : velocity factor(Vf)=0.75 Phase shift=90 degrees Frequency =100Mhz

Q: Open- and short-circuit test has been performed of a synchronous machine 45-kVA, three- phase,…

A: It is given that: V=220 Vf=50 HzKVA=45P=6 OC characterstics:VLL=220 V,If=2.84ASC…

Q: In DC generator supply side, the name of the device used for protection of the circuit is

A: DC generator is a electrical machine that works by converting the mechanical energy into electrical…

Q: 2. What are negative effects oF corona on the current and voltage drop occurs in the line

A: The negative effects of corona on the current and voltage drop occurs in the line is

Q: When selecting conductors, from where is the motor full - load ampere rating to be taken

A: During the selection of the conductors, the motor full-load ampere rating is taken in the squirrel…

Q: (i) List any three factors to be considered for mechanical design of overhead lines

A: List of the factor to be design overhead transmission line

Q: what is the voltage between neutral and protective earth conductor in the TN-S earthing schemes…

A: In TN-S earthing scheme, T stands for solid earthing, N denotes the presence of the conductor having…

Q: What is need of using copper conductors instead of aluminum in underground transmission system?

A: In this question , we will write the reason why copper conductor used in underground transmission…

Q: Draw the developed diagram of a 3-ph, 4-pole, single layer, full pitch wa.ve winding. The number of…

A: Number of phases=3. No. of poles=4. Number of slots per pole per phase =2. Total number of slots…

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

Q: 5. Explain the effect of load power factor on the transmission efficiency?

A: Power factor expresses the ratio of true power used in a circuit to the apparent power delivered to…

Q: Why are overhead transmission lines not suitable for power distribution within cities?

A: Overhead transmission lines not suitable for power distribution within cities due to the safety and…

Q: Question 2 The are enclosed by the hysteresis loop is equal to the hysteresis energy of material…

A: Hysterisis loop is a plot between field intensity(H) and magnetic flux density(B).

Q: PROBLEMS : Does maximum power transfer imply maximum efficiency of power transfer? Explain.

Q: Block diagram of human being close loop system?

Concept explainers

HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.

Question

Q) Why AC current is preferred over DC current for high power electrical circuits?

NOTE: Answer must not exceed more than 5 lines

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

Introduction

VIEW

Explanation

VIEW

Step by step

Solved in 2 steps

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

8/The Efficiency of a Transmission Line should be _____? A. as high as possible. B. as low as possible. C. zero or nil D. none of the choices or options
a) High Voltages are preferred for Transmission of Electricity. Why? b) Why Generation Voltage Levels are low in the range of 11 kV/ 33 kV etc? c) Why ACSR Conductors are preferred over Copper Conductors? d) Overhead Transmission Lines are preferred for Transmission of Power for Long Distances, why?
Transmission and distribution lines are important components of any power system study. Aluminium cable steel reinforced (ACSR) (with steel in the centre – as shown in Figure Q1 is normally chosen instead of copper for transmission Explain: (a)The choice of aluminium instead of copper (b)The need to use and place steel at the core
Explain the significance of power transmission and distribution in the electrical grid, and the challenges associated with high-voltage transmission.
.Calculate the unknown voltages, currents, and powers and properly label theschematic.
What are the factors which governs the performance of transmission line? Subject Power Transmission and Distribution
Q-1) Compared to a three-wire bundle, a single wire using the same amount of metal per km wouldhave higher losses. Elaborate. Q-2) What is the main objective of transposition in transmission line conductors? Course is power transmission
Explain in your own words and your own understanding (avoid plagiarism) why there's a need to do Power Factor Correction or Improvement in an Electrical Power System.
A transmission line has a span of 150m between level supports of 16 meter height. The ground clearance is 95 % of the tower height. The difference in level between the points of supports and the lowest point on the conductor in meters is............ (Complete answer)
What is the voltage drop in kV on the transmission line?
Explain 6 methods of improving power factor in electrical system
q1/ choose the correct answer Using bundled conductors, corona effect will ______________ 1- increase 2- not change 3- decrease 4- become zero