Results 1 to 10 of about 21,827,196 (263)

Study on Tower Models for EHV Transmission Line

open access: yesMATEC Web of Conferences, 2016
Lightning outage accident is one of the main factors that threat seriously the safe and reliable operation of power system. So it is very important to establish reasonable transmission tower model and evaluate the impulse response characteristic of ...
Xu Bao-Qing   +4 more
doaj   +1 more source

Galloping Performance of Transmission Line System Aeroelastic Model with Rime Through Wind-Tunnel Tests

open access: yesEnergies
This study presents an experimental investigation for the galloping performance of the transmission line system with rime under wind excitation. A full aeroelastic model wind-tunnel test is conducted to investigate the dynamic response of a two-bundled ...
Mingguan Zhao   +5 more
doaj   +1 more source

Nonlinear Seismic Behavior of Different Boundary Conditions of Transmission Line Systems under Earthquake Loading

open access: yesShock and Vibration, 2016
Nonlinear seismic behaviors of different boundary conditions of transmission line system under earthquake loading are investigated in this paper. The transmission lines are modeled by cable element accounting for the nonlinearity of the cable.
Li Tian, Xia Gai
doaj   +1 more source

1-ohm Impedance Criterion for Diagnosis of Single-Phase Ground Fault of Transmission Line

open access: yesIEEE Access
The transition resistance during single-phase grounding faults in transmission lines is closely related to the fault cause. Quickly determining the cause of the fault through the transition resistance value and taking targeted measures to restore the ...
Xueming Zhou   +6 more
doaj   +1 more source

Low Delay Technology Research of Transmission Line Tower Monitoring Network Integrating WSN and RFID

open access: yesIEEE Access, 2019
The tower is a key component of the transmission line system and its stability and reliability is the guarantee for the safety of entire transmission line system.
Fangming Deng   +4 more
doaj   +1 more source

Failure Risk Investigation of Transmission Tower-line System Under Sequential Earthquake Considering Input Directionality

open access: yes工程科学与技术
ObjectiveTransmission tower-line structures are representative spatial distribution systems. They typically span hundreds or even thousands of kilometers and inevitably traverse regions with high seismic intensities.
LIU Juncai, DONG You
doaj  

Influence of temperature effects on the pylon-beam support system of cable-stayed bridges

open access: yesShenzhen Daxue xuebao. Ligong ban
In order to explore the stress characteristics of a single-tower multi-span cable-stayed bridge under system temperature effects, taking a multi-span cable-stayed bridge project as an example, a full-bridge finite element model is established based on ...
ZHAO Licai
doaj   +1 more source

Parametric Study of Tuned Mass Dampers for Long Span Transmission Tower-Line System under Wind Loads

open access: yesShock and Vibration, 2016
A parametric study of tuned mass dampers for a long span transmission tower-line system under wind loads is done in this paper. A three-dimensional finite element model of transmission tower-line system is established by SAP2000 software to numerically ...
Li Tian, Yujie Zeng
doaj   +1 more source

Wind-Induced Vibration of UHV Wing-Expanded Transmission Lines with Different Coherence Functions

open access: yesApplied Sciences
With the continuous growth of electricity demand, the structural safety of transmission towers under wind loads has become crucial. The wind-resistant design of transmission towers is mainly analyzed through the wind-induced response and wind vibration ...
Wenwu Zhou   +5 more
doaj   +1 more source

Seismic Performance and Collapse Fragility of a 765 kV Transmission Tower–Line System

open access: yesBuildings
Based on a real-world project in Pakistan, this study investigates the seismic performance and collapse fragility of a 765 kV transmission tower–line system.
Guo-Dong Shao   +6 more
doaj   +1 more source

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