Behavior of overhead transmission line parameters on the presence of ground wires

Behavior of overhead transmission line parameters on the presence of ground wires

Initially this paper shows the ground wire reduction process for generic multiphase transmission lines and after, the ground wire reduction process for a specific 440-kV three-phase overhead transmission line. Following this, the influence of the ground wire reduction process considering two situati...

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Veröffentlicht in:IEEE transactions on power delivery 2005-04, Vol.20 (2), p.1669-1676
Hauptverfasser: Kurokawa, S., Filho, J.P., Tavares, M.C., Portela, C.M., Prado, A.J.
Format: Artikel
Sprache:eng
Schlagworte:
Admittance matrix
Applied sciences
Electrical engineering. Electrical power engineering
Electrical power engineering
electromagnetic (EM) field
Exact sciences and technology
Frequency
frequency-domain analysis
Grounding
Grounds
Impedance
impedance matrix
Mathematical analysis
Matrix decomposition
multiconductor transmission lines
Multiphase
Overhead networks
Power networks and lines
Power transmission lines
Reduction
Transmission line matrix methods
Transmission line theory
Transmission lines
Voltage
Wire
Wires
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Beschreibung
Zusammenfassung:Initially this paper shows the ground wire reduction process for generic multiphase transmission lines and after, the ground wire reduction process for a specific 440-kV three-phase overhead transmission line. Following this, the influence of the ground wire reduction process considering two situations is shown: first, considering frequency independence and second, when these parameters are considered as frequency dependent. This paper presents analytical results for generic multiphase transmission lines. For a specific 440-kV three-phase overhead transmission line, analytical and graphic results are shown considering real data for every frequency between 10 Hz and 1 MHz.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2004.833916