Conductor diameter of an overhead transmission line is 1.95 cm and span between towers is 244 m. If the allowable tension is 3629 kg. Find (a) sag in still air condition without ice covering (b) vertical sag when there is an ice covering of 0.96 cm radial thickness and a horizontal wind pressure of 38.94 kg/m² of projected area. Weight of ice is 909.27 kg/m³ (c) The line is carried by insulator strings 1.45 m long. What should be the height of lowest cross-arm to give a minimum ground clearance of 8 m under bad weather conditions? Weight of conductor is 0.847 kg/m.

Conductor diameter of an overhead transmission line is 1.95 cm and span between towers is 244 m. If the allowable tension is 3629 kg. Find (a) sag in still air condition without ice covering (b) vertical sag when there is an ice covering of 0.96 cm radial thickness and a horizontal wind pressure of 38.94 kg/m² of projected area. Weight of ice is 909.27 kg/m³ (c) The line is carried by insulator strings 1.45 m long. What should be the height of lowest cross-arm to give a minimum ground clearance of 8 m under bad weather conditions? Weight of conductor is 0.847 kg/m.

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 4.13P: A single-phase overhead transmission line consists of two solid aluminum conductors having a radius...

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