Now showing items 1-10 of 1689
Real-time estimation of transmission line impedance based on modal analysis theory
The objective of this paper is to show a methodology to estimate the longitudinal parameters of transmission lines. The method is based on the modal analysis theory and developed from the currents and voltages measured at ...
A First approach on the new transmission system in northern Brazil
This article shows an analysis of the electrical parameters of a three-phase transmission line section using a relatively new design for steel towers characterized by 280 meters high. These main features, the height of the ...
Sensitivity analysis for overload-relief in transmission lines using an implicitly coupled method (CRIC)
The restructuring of energy markets to provide free access to the networks and the consequent increase of the number of power transactions has been causing congestions in transmission systems. As consequence, the networks ...
Corona effect in frequency dependent transmission line models
The inclusion of the corona effect in a frequency dependent transmission line model is proposed in this paper. The transmission line is represented through a cascade of π circuits and the frequency dependence of the ...
Identification of transmission line parameters from temporal measurements of currents and voltages in their terminals: Influence oh the length line
The objective of this paper is to show a methodology to estimate transmission line parameters. The method is applied in a single-phase transmission line using the method of least squares. In this method the longitudinal ...
Behavior of overhead transmission line parameters on the presence of ground-wires
(Institute of Electrical and Electronics Engineers (IEEE), 2005-04-01)
Initially this paper shows the ground wire reduction process for generic multiphase transmission lines and after, the ground wire reduction process for a specilic 440-kV three-phase overhead transmission line. Following ...