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Inspection and Monitoring Technologies of Transmission Lines with Remote Sensing by Kai Liu, Yi Hu

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Chapter 1

Parameters and characteristics of transmission lines

Abstract

With the rapidly increasing demand for electricity in China, many power transmission lines have been constructed and put into commercial operation, especially the UHV AC and DC transmission lines. The inspection and maintenance of those lines are demanding tasks. The electrical and mechanical parameters and characteristics of transmission lines are important for their operational safety and reliability, as those working on them should know. The general development and main structure of transmission lines are introduced in Section 1.1. The electrical characteristics of transmission lines, including the AC power frequency discharge feature, the lightning and switching impulse ...

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