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Dynamic Analysis of Power Transmission Lines With Ice-Shedding Using an Efficient Absolute Nodal Coordinate Beam Formulation

, 2020
Dynamic analysis of power transmission lines with ice-shedding is conducted in this work. The power transmission line is first simplified as a uniform slender round beam.
W. Fan, H. Ren, Wei-dong Zhu, Haoyun Zhu
semanticscholar   +1 more source

Hybrid Approach for Detection and Diagnosis of Short-Circuit Faults in Power Transmission Lines

Energies
In this article, the main problem under investigation is the detection and diagnosis of short-circuit faults in power transmission lines. The proposed fault detection (FDD) approach is mainly based on principal component analysis (PCA).
Luís Brito Palma
semanticscholar   +1 more source

Lightning attachment to power transmission lines

2012 International Conference on Lightning Protection (ICLP), 2012
The effect of lightning channel inclination on the attachment of lightning flashes to UHV transmission lines is investigated using a lightning strike model that takes into account the competing connecting leaders issued from different conductors. The results show that the probability of screening failures increases with increasing inclination of the ...
Vernon Cooray, Takatoshi Shindo
openaire   +1 more source

Power limits of transmission lines

Electrical Engineering, 1952
THIS ARTICLE PRESENTS the results of studies of the factors which influence the power limits or design loadings of transmission lines. Recent investigations have shown the principal factors determining the loading of transmission circuits, particularly those for distances of 100 to 600 miles.
openaire   +1 more source

Power Transmission Lines Inspection using Properly Equipped Unmanned Aerial Vehicle (UAV)

International Symposium on Telecommunications, 2018
The inspection of power transmission lines is an important task that enhances the reliability of Electricity Distribution Network Operators. This task can be performed in a low-cost way using unmanned aircrafts.
Alexandros Zormpas   +6 more
semanticscholar   +1 more source

Power Frequency Overvoltage of UHV Power Transmission Lines

2017
Compared to the EHV, the power-frequency overvoltage of the UHV transmission lines is usually more serious, and seriously affecting the power transmission reliability. This chapter first discusses the mechanisms, characteristics, classification, and main influence factors of power-frequency overvoltage of the UHVAC transmission line, then focuses on ...
Hao Zhou, Qiang Yi, Sha Li, Jingzhe Yu
openaire   +1 more source

Electromagnetic Power Extraction of Transmission Lines

Applied Mechanics and Materials, 2013
The main idea of this project is to feed small loads along the lines of the TBE - Brazilian Energy Transmission with retreat directly from power lines without any physical contact. This paper presents the system for extracting small powers of the transmission line through electromagnetic effects.
Eden L. Carvalho Junior   +5 more
openaire   +1 more source

Practice of optical fiber sensing technologies in power transmission lines and towers

IEEE International Conference on Power System Technology, 2018
Optical fiber sensing technologies have been developed for more than forty years and applied in many different areas. They are suitable for power systems because of their electromagnetic immunity, their safety in nuclear environments, distributed sensing
Kai Xie   +6 more
semanticscholar   +1 more source

Combined two-line power transmission synthesis

Mechanism and Machine Theory, 1975
Abstract The synthesis of a multistage electromechanical transmission consisting of two directly connected three-link gear differentials is proposed. The characteristic feature of the transmission is the fact that, for shifting control ranges, the effect of a structural change is used instead of a gear box.
I.I. Artobolevskii   +2 more
openaire   +1 more source

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