) List any three factors to be considered for mechanical design of overhead lines(i1) An overhead transmission line is supported at a river crossing by two towers of height 38 m. Theweight of the conductor is 0.307 kg/m. The weight due to wind is 1.4 kg/m. The ultimate strength is1100 kg and factor of safety is 2. If the Span length is 140 m.Determine(a) Total weight of the conductor ((b) Sag (1(c) Total Length of conductor between supports ((d) Clearance between the lowest point on the conductor and water level. (1 M.Total Weight of the conductorSagTotal Length of the conductor between the supportsFUITSU

According to our expert policy only one individual question is to answered.kindlybrepost the…

Answered: () List any three factors to be…

Engineering

Electrical Engineering

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

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 4.8P: A 60-Hz, single-phase two-wire overhead line has solid cylindrical copper conductors with a 1.5 cm...

See similar textbooks

Related questions

Q: example open loop system

A: In this question we discuss about open loop system

Q: Which of the following is used to reduce the compounding of a DC generator? Inverter Diverter…

A: DC generator is a device which converts the Mechanical energy into the electrical energy

Q: Explain the definitions of three sets of sequence components. Take voltages or currents for example,…

A: Three sets of sequence components: The power system fault causes an unbalanced condition of…

Q: What is a grounding conductor? What is a grounding conductor (equipment)? What is a grounding…

A: Grounding Conductor: A Grounded Conductor is a system or circuit conductor that is grounded on…

Q: 1) what is the Auto Transformer instrument ? 2) What are the benefits of using an Auto Transformer…

A: Autotransformer is an electrical device which is basically an transformer with only one winding. An…

Q: What is Per Unit system and why it is used in Power system calculations?

A: Various parameters of the power system is represented in the per-unit system

Q: 1. Circuit breakers should be included in the impedance diagram. (True/False)

A: SINGAL LINE DIAGRAM OF A POWER SYSTEM: A single line diagram is the representation of a power system…

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: 1. The number of devices required to perform the no-load test and the short-circuit test for…

A: Electrical machines can be either generator, transformer or motors. They can be either Ac machines…

Q: How do voids in the insulation cause breakdown of the cable?

A: For the transmission and distribution purpose of electric power, high voltage cables are used. The…

Q: If required, what type of diagram must indicate the calculated load, demand factors, conductor type…

Q: Airframe Electrical System Question: In general, what factors areconsidered when selecting the…

A: While manufacturing, the sizes of the wire are selected according to a known standard called as…

Q: 7. What is the object of equipment grounding? Briefl y describe the functions of substation…

A: The object of equipment grounding: To reduce as much as possible the emergence of any voltages in…

Q: differentiate between overhead service connection and under ground service connection with sketch

A: Overhead Service Connection:- Electric locomotives, trolleybuses, and trams receive their electrical…

Q: Explain all components

A: The functioning and purpose of each of the components can be explained as: The bias for the base of…

Q: What is granding of cables? Explain.

A: to explain grading of cables

Q: Label the parts of Tubular Steel Poles

A: Steel tabular poles are not commonly used poles these poles are used when there is need of low cost…

Q: sequence components o

A: For PU system- PU value=Actual value/Base value

Q: Discuss the three main categories of hydroelectric projects.

A: The three main categories of hydroelectric projects are as follows: Impoundment facility…

Q: What is the purpose of sequence control

A: Sequence control is generally used to start or stop motors in a specific order. It is used when one…

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

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

Q: The displacement is actual path of particle False True

A: The solution is given below

Q: Explain vector grouping of transformers with suitable diagrams. Mention its usefulness.

A: The three-phase transformer can be imagined as a three single-phase transformer having a common…

Q: 4. Why are the outer metal parts of electrical appliances grounded?

Q: Describe some of the factors that have contributed to the delays in undersea cable maintenance.

A: The underground cables play a major role in the internet flow in many of the country's.They are a…

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: Why is this important for transmitting electrical power to residential and industrial needs?

A: The requirement of electrical energy is increasing day by day. It is the most utilized or consumed…

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: The main purpose of FACTS

A: Facts means flexible alternating current transmission systems. Its a power electronic based system…

Q: Identify and describe the step-by-step procedure that is used to draw cable, as well as the…

A: It is asked to describe the step-by-step procedure that is used to draw cable and to install cable…

Q: list the material required for overhead service connection

A: Various Types of Electrical service connections - Overhead Underground Majorly overhead is…

Q: b) Why Generation Voltage Levels are low in the range of 11 kV/ 33 kV etc? c) Why ACSR Conductors…

A: b) we know that the voltage drop in line depecds upon various factors such as:- Load value, load…

Q: Determine the diameter in inches and in millimeters of circular cables having cross-sectional areas…

A: Since there are 4 sub-parts (a, b, c, d), as per the guidelines, in the following section, only the…

Q: Why do we need Transmission system in various power plants and vehicles?

A: Transmission of Electrical power involves large transmission of electrical energy from power plant…

Q: State the common dimensional units for the input and output of generator of electricity.

A: Dimensional Unit- Every physical quantity which can be measured is considered as dimensional. These…

Q: . What is “accessible” as applied to wiring methods? What is “accessible” as applied to equipment?…

A: In an electrical system, there are various terms which are used for different phenomenon and gives a…

Q: Explain the meaning of the term “bundle conductor transmission line" and discuss the effects of its…

A: A single-stranded conductor is used for transmitting the power from one end to the other ends when…

Q: What are the common problems encountered when using parallel wire line? Coaxial lines? What are the…

A: Parallel cable transmission lines consist of cables insulated with insulating gaskets. A typical…

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 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: A 4.5-kVA, 240 volt electric clothes dryer contributes _____ amperes to the neutral load , when…

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

Q: Describe the various methods of laying underground cables. What are the relative advantages and…

A: Proper laying and attachment of fittings decide the reliability of underground cables. The fittings…

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: List the responsibilities of the project contractor

Q: Write any four methods of voltage control and Draw the basic block diagram of AC – DC transmission…

Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

Question

) List any three factors to be considered for mechanical design of overhead lines
(i1) An overhead transmission line is supported at a river crossing by two towers of height 38 m. The
weight of the conductor is 0.307 kg/m. The weight due to wind is 1.4 kg/m. The ultimate strength is
1100 kg and factor of safety is 2. If the Span length is 140 m.
Determine
(a) Total weight of the conductor (
(b) Sag (1
(c) Total Length of conductor between supports (
(d) Clearance between the lowest point on the conductor and water level. (1 M.
Total Weight of the conductor
Sag
Total Length of the conductor between the supports
FUITSU

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 2 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

A transmission-line cable with a length of 2 km consists of 19 strands of identical copper conductors, each 1.5 mm in diameter. Because of the twist of the strands, the actual length of each conductor is increased by 5. Determine the resistance of the cable if the resistivity of copper is 1.72-cm at 20C.
A 60-Hz, single-phase two-wire overhead line has solid cylindrical copper conductors with a 1.5 cm diameter. The conductors are arranged in a horizontal configuration with 0.5 m spacing. Calculate in mH/km (a) the inductance of each conductor due to internal flux linkages only, (b) the inductance of each conductor due to both internal and external flux linkages, and (c) the total inductance of the line.
PowerWorid Simulator case Problem 3_60 duplicates Example 3.13 except that a resistance term of 0.06 per unit has been added to the transformer and 0.05 per unit to the transmission line. Since the system is no longer lossless, a field showing the real power losses has also been added to the oneline. With the LTC tap fixed at 1.05, plot the real power losses as the phase shift angle is varied from 10 to +10 degrees. What value of phase shift minimizes the system losses?
ACSR stands for Aluminum-clad steel conductor Aluminum conductor steel supported Aluminum conductor steel reinforced
An Overhead transmission line has a span of 115 m. Ultimate strength is 3600 Kg and factor of safety is 2. If the sag is 3 m, If the weight due to wind is 1.5 kg/m, Determine(a) weight of the conductor and(b) Length of the line
1- Conductor cables are considered the active elements of a transmission line, as they carry current. Such elements must exhibit some characteristics, what are they? Is there an element that meets all these requirements? 2- Several natural processes can interfere with the proper functioning of a transmission line, such as the action of winds on the cables, which causes a fatigue process due to vibrations, mechanically limiting them. Are there any provisions capable of reducing such effects? If yes, indicate which ones. 3-We have an aerial bifilial transmission line, powered by a constant voltage source of 700 V. The values for the inductance of the conductors are 2.348x10-3 H/km and the capacitance values are 6.325x10-9 F/km. Assuming an ideal (no loss) line and its length of 130 km, determine the impedance line natural.
3. A transmission line has a span of 150 m between level supports. The cross-sectional area of the conductor is 1·25 cm2 and weighs 100 kg per 100 m. The breaking stress is 4220 kg/cm2. Calculate the factor of safety if the sag of the line is 3·5 m. Assume a maximum wind pressure of 100 kg per sq. metre. [4]
25/b A transmission line subjected to wind and ice loading with a span of 65 m between level supports has conductor weight of 3.5 kg. The total weight of the conductor is 6 kg and weight additional due to ice loading is 1.25 kg. (All weights given are for unit length). The ultimate strength and safety factor of the conductor are 3600 Kg and 3 respectively. If the height of the tower is 18.7 m. Find (a) Weight of the conductor due to the effect of wind (b) Sag (c) the clearance from the ground
An overhead line has span of 260m. The tension in the line is 1200kg while the conductor weighs 650 kg per 100 meters. Calculate the maximum SAG in the conductor. If the height of the tower is 13 meters, estimate the clearance of conductor to the ground. Draw a figure and mark values of sag, clearance, span, height of conductor etc.
A 84 meter long conductor with a unit weight of q=(0.8) kg/m is separated from each other.It is stretched on two poles in a straight span at a horizontal distance of "a" and the deflection valuef=16 meters measured. Accordingly, with the catenary method: a. Calculate the value of "a" b. Horizontal 18 meters from the lowest point of the conductor to any pole Calculate the deflection value at distance. c. Calculate the resultant tension force (S) at the peaks. D. At the apex, this is the angle that the direction of the S force makes with the horizontal axis calculate.
An overhead transmission line is supported at a river crossing by two towers of height 34 m. The weight of the conductor is 0.412 kg/m. The weight due to wind is 1.5 kg/m. The ultimate strength is 1100 kg and factor of safety is 2. If the Span length is 140 m. Determine (a) Total weight of the conductor (b) Sag (c) Total Length of conductor between supports (d) Clearance between the lowest point on the conductor and water level.
Write any four methods of voltage control and Draw the basic block diagram of AC – DC transmission system. and A transmission line has a span of length 250 m and the weight of the conductor per metrelength is 0.63 Kg. The tension in the conductor is 1250 Kg. Calculate the sag and heightabove the ground at which the conductor should be supported. Consider the groundclearance required is 13m