Results 11 to 20 of about 710 (95)

Research Progress of Galloping of Overhead Iced Transmission Lines [PDF]

open access: yes, 2023
[Introduction] The galloping of transmission lines will lead to trip, worn hardware, broken insulator string, damaged tower-arm and other accidents. In serious cases, collapsed tower accidents may occur.
Guangyun MIN, Xiaohui LIU, Xin ZHAO
core   +1 more source

Outdoor Insulation and Gas Insulated Switchgears [PDF]

open access: yes, 2023
This book focuses on theoretical and practical developments in the performance of high-voltage transmission line against atmospheric pollution and icing.

core   +1 more source

Wind Tunnel Tests on Aerodynamic Characteristics of Ice-Coated 4-Bundled Conductors [PDF]

open access: yes, 2017
Wind tunnel tests were carried out to obtain the static aerodynamic characteristics of crescent iced 4-bundled conductors with different ice thicknesses, initial ice accretion angles, bundle spaces, and wind attack angles.
Li Xin-min   +4 more
core   +2 more sources

EXTENSIVE ANALYSES ON LARGE AMPLITUDE GUSTY-WIND-INDUCED VIBRATIONS OF OVERHEAD TRANSMISSION LINE SYSTEMS [PDF]

open access: yes, 2014
埼玉大学博士(学術)v, 92 p.Large amplitude wind-induced vibrations of ice-accreted/unaccreted conductors in overhead transmission lines are frequently observed in the field.
Pham, Viet Hung   +1 more
core   +1 more source

Equivalent static wind loads on snow-accreted overhead wires [PDF]

open access: yes, 2021
The effects of structural and aerodynamic non-linearity on dynamic wind loads on overhead wires have been investigated. According to the Japanese design standards for transmission structures, wind loads on overhead wires are determined using equivalent ...
Macdonald, John H G   +4 more
core   +2 more sources

Identification and characterization of galloping of Tsuruga test line based on multi-channel modal analysis of field data [PDF]

open access: yes, 2007
In spite of several signal processing and system identification techniques, discussion on field-observed galloping of overhead transmission lines is still based on primitive form of field data such as time series, Lissajous diagrams and power spectra ...
18439   +3 more
core   +1 more source

Ice shedding from cables and conductors : a cracking model of atmospheric ice = Délestage de glace des câbles et des conducteurs : un modèle de rupture fragile de la glace atmosphérique [PDF]

open access: yes, 2007
Le givrage atmosphérique est à la source de sérieux problèmes d'origine électrique et mécanique sur les réseaux de transport et de distribution de l'énergie électrique.
Kermani Koosheh, Majid
core   +1 more source

Equation of motion of split conductor of anchor section at icing in wind flow [PDF]

open access: yes
The relevance of the examined problem is connected with the necessity to develop measures to combat conductor galloping and the design of power transmission lines (ETL).
Amangeldy Bekbayev   +4 more
core   +1 more source

Tree High Impedance Fault Modelling [PDF]

open access: yes, 2023
Europe will be subject in the coming years to major changes in the energy sector, according to the plan called “REPowerEu” the goal is to reduce greenhouse gas emissions by 55% by 2030 and achieve climate neutrality by 2050.
Sassetto Mercuzio
core  

Corona onset voltage gradient of bundle conductors for EHV/UHV AC power lines in corona cages considering the altitude correction

open access: yesCSEE Journal of Power and Energy Systems, 2019
The corona onset voltage gradient (COG) of conductors is a key parameter in the design of overhead transmission lines. The commonly used semi-empirical calculation formula proposed by Peek (1910s) at present can roughly estimate the COG of single ...
Shilong Huang   +6 more
semanticscholar   +1 more source

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