Chapter 9
Concept of Energy Transmission and Distribution
9.1 Generation Stations 9-3
9.2 Switchgear 9-3
9.3 Control Devices 9-4
9.4 Concept of Energy Transmission and Distribution 9-4
High-Voltage Transmission Lines • High-Voltage DC Lines • Subtransmission Lines • Distribution Lines
References9-12
George G. Karady
Arizona State University
The purpose of the electric transmission system is the interconnection of the electric-energy-producing power plants or generating stations with the loads. A three-phase AC system is used for most transmission lines. The operating frequency is 60 Hz in the United States and 50 Hz in Europe, Australia, and part of Asia. The three-phase system has three phase conductors. The system voltage is defined as the ...
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