Example1:Two towers support a conductor at height 50m and 100m, The horizontaldistance between the conductor is 1000m, weight of conductor is 0.5kg/mwhereas the tension of conductor is 3000kg, find the minimum clearance oflowest point of conductor from the groundExample 2:Calculate maximum sag of a line with the conductor material over alldiameter o.889cm, weight 428kg/km and breaking strength 1973kg.Assume factor of safety 2. Span 200m.1-Due to weight of conductor only.2-Due to additional weight of ice loading of 1cm thickness3-Due to 1 and 2 plus wind acting horizontally at pressure of 39kg persquare meterExample 3An overhead line has span of 250m, find the weight of conductor if thebreaking strength is 5758kg ,sag 1.5m and factor of safety is 2

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Example1: Two towers support a conductor at height 50m and 100m, The horizontal distance between the conductor is 1000m, weight of conductor is 0.5kg/m whereas the tension of conductor is 3000kg, find the minimum clearance of lowest point of conductor from the ground

Example1: Two towers support a conductor at height 50m and 100m, The horizontal distance between the conductor is 1000m, weight of conductor is 0.5kg/m whereas the tension of conductor is 3000kg, find the minimum clearance of lowest point of conductor from the ground

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 4.46P

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Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

Example1:
Two towers support a conductor at height 50m and 100m, The horizontal
distance between the conductor is 1000m, weight of conductor is 0.5kg/m
whereas the tension of conductor is 3000kg, find the minimum clearance of
lowest point of conductor from the ground
Example 2:
Calculate maximum sag of a line with the conductor material over all
diameter o.889cm, weight 428kg/km and breaking strength 1973kg.
Assume factor of safety 2. Span 200m.
1-Due to weight of conductor only.
2-Due to additional weight of ice loading of 1cm thickness
3-Due to 1 and 2 plus wind acting horizontally at pressure of 39kg per
square meter
Example 3
An overhead line has span of 250m, find the weight of conductor if the
breaking strength is 5758kg ,sag 1.5m and factor of safety is 2

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