Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
POWER TRANSMISSION TOWER STRUCTURE WITH EMBEDDED GROUND CONDUCTOR FOR IMPROVING LIGHTNING PERFORMANCE AND METHOD FOR DETERMINING LOCATION AND EFFECT OF EMBEDDED CONDUCTOR
Power line conductors are normally shielded from direct lightning strikes by appropriately placed overhead ground wires. However, even when such overhead ground wires work as intended and intercept a strike, for a short period of time, typically a few microseconds, the shield wire is exposed to an impulse type potential rise. This could be sufficient to cause flashover of one or more line insulator strings. This is called backflash. The present invention solves this problem by providing a power transmission tower structure with an embedded ground conductor positioned in order to optimize the coupling factors to all conductors and reduce stress on all insulator strings through increased electromagnetic coupling. Use of a streamer-inhibited conductor avoids adverse effects such as radio interference and audible noise due to induced charges and improves electromagnetic coupling as a result of the reduced surge impedance of the conductor.
POWER TRANSMISSION TOWER STRUCTURE WITH EMBEDDED GROUND CONDUCTOR FOR IMPROVING LIGHTNING PERFORMANCE AND METHOD FOR DETERMINING LOCATION AND EFFECT OF EMBEDDED CONDUCTOR
Power line conductors are normally shielded from direct lightning strikes by appropriately placed overhead ground wires. However, even when such overhead ground wires work as intended and intercept a strike, for a short period of time, typically a few microseconds, the shield wire is exposed to an impulse type potential rise. This could be sufficient to cause flashover of one or more line insulator strings. This is called backflash. The present invention solves this problem by providing a power transmission tower structure with an embedded ground conductor positioned in order to optimize the coupling factors to all conductors and reduce stress on all insulator strings through increased electromagnetic coupling. Use of a streamer-inhibited conductor avoids adverse effects such as radio interference and audible noise due to induced charges and improves electromagnetic coupling as a result of the reduced surge impedance of the conductor.
POWER TRANSMISSION TOWER STRUCTURE WITH EMBEDDED GROUND CONDUCTOR FOR IMPROVING LIGHTNING PERFORMANCE AND METHOD FOR DETERMINING LOCATION AND EFFECT OF EMBEDDED CONDUCTOR
RIZK FAROUK A M (Autor:in) / RIZK AMR (Autor:in)
27.07.2023
Patent
Elektronische Ressource
Englisch
IPC:
H02G
INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
,
Verlegen oder Installieren elektrischer Kabel oder Leitungen, Verlegen oder Installieren kombinierter optischer und elektrischer Kabel oder Leitungen
/
E04H
Gebäude oder ähnliche Bauwerke für besondere Zwecke
,
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES
/
H01R
Elektrisch leitende Verbindungen
,
ELECTRICALLY-CONDUCTIVE CONNECTIONS
/
H02H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
,
Schutzschaltungsanordnungen
| Europäisches Patentamt | 2024
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