Analysis of an Isolated Half-Wavelength Transmission Line Submitted to Switching Maneuvers

Abstract

This paper presents some electromagnetic transient results on a Transmission Line a little greater than the HalfWavelength (HWL+). It was used an 800 kV non-conventional line with 2600 km and towers with three bundles of eight conductors each and a natural power of 4.8 GW. The studies conducted consist of line energization, load rejection, line tripping and reclosing. The transients arisen from the maneuvers were less severe than those on lines of some hundreds of kilometers.

Attending small loads along a half-wavelength transmission line

“…can be written as in (5): ( 5) As can be observed, the voltage gain between the line terminals is a unity for an AC-Link. There will be no need to instal a reactive compensation along the line to reduce the sustained overvoltage during no-load or light-load operation.…”

“…This will enhance drastically its stability performance. Some of the basic concepts of the AC-Link are presented in [3] and [4], and some transient responses of the line under regular maneuvers and faults are presented in [5]. In these works non-conventional ultra high voltage transmission lines are studied in order to transmit huge blocks of energy.…”