Principles of Mechanical Design in Overhead Transmission Lines

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Journal Title

Journal ISSN

Volume Title

Sähkötekniikan korkeakoulu | Master's thesis

Date

2016-10-31

Department

Major/Subject

Sähköjärjestelmät

Mcode

S3015

Degree programme

Elektroniikka ja sähkötekniikka

Language

en

Pages

8 + 64

Series

Abstract

Technical infrastructures are of significant importance for a modern society to develop continuously, and dependence of society to electric power is ever-increasing. Power supply is also a must for economic growth and life convenience, and both industry and households have confidence in proper functionality of power network. Interruption in the power system due to technical faults, adverse weather and operational problems may result in irreparable consequences. Electricity, through Transformers and Transmission Lines, flows from Power Plants to Substations and Distribution System, and then to consumers .The Power and Distribution System is highly interconnected, which means that the Transmission Grid functions as one entity. This master thesis reviews the principles of mechanical design in Transmission Lines. Overhead Transmission Lines are expected to withstand climatic conditions and other outside disturbances. The applied forces must be tolerated mechanically by structural components of Transmission Line. Transmission Line must not fail in the hardest climatic situations. This fact obliges engineers to anticipate worst loading conditions, and select the best design in order to be confident of consistency and stability of operation in the Line.

Description

Supervisor

Lehtonen, Matti

Thesis advisor

Lehtonen, Matti

Keywords

transmission lines, load, wind, conductor, steel structure

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