Results 21 to 30 of about 8,340 (218)

The application of the technology of sensor networks for the intellectualization of the overhead power transmission lines [PDF]

E3S Web of Conferences, 2020
The length of overhead power transmission lines in the Russian Federation is over 2.8 million kilometers. Power grids are rapidly becoming obsolete. The level of deterioration of the equipment achieves 70% [1].
Ivanov Dmitry, Sadykov Marat, Golenishchev-Kutuzov Aleksandr, Yaroslavsky Danil, Galieva Tatyana, Arslanov Amir   +5 more
doaj   +1 more source

Overhead Transmission Lines Deicing under Different Incentive Displacement

Journal of Applied Mathematics, 2014
Overhead transmission line icing is one of the main factors affecting safety and reliability of power grid. This paper proposed an excitation deicing method of iced wire and theoretically revealed the ice removal mechanism under displacement excitation ...
Qing He, Xi-feng Lv, Xiao-tong Zhao
doaj   +1 more source

The analysis of continuous admissible currents and active power losses in overhead power lines taking into account climatic factors

Омский научный вестник, 2023
Formulas for calculating continuous admissible currents and active power losses for overhead power transmission lines under conditions of natural and forced convection for insulated and non-insulated conductors are presented. The correct determination of
E. V. Petrova, S. S. Girshin, V. A. Krivolapov, V. N. Goryunov, V. M. Trotsenko   +4 more
doaj   +1 more source

Calculation of the Dynamic Wind-Induced Deflection Response of Overhead Lines: Establishment and Analysis of the Multi-Rigid-Body Model

IEEE Access, 2020
Wind-induced deflection flashover severely endangers the normal operation of overhead transmission lines. This paper proposes a multi-rigid-body model for the accurate and efficient calculation of the dynamic wind-induced deflection response of overhead ...
Xin Hu, Zhangqi Wang, Rui Tian
doaj   +1 more source

THE IMPACT OF LIGHTNING STRIKE ON HYBRID HIGH VOLTAGE OVERHEAD TRANSMISSION LINE – INSULATED GAS LINE

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
The electrical network is the set of elements where loads are connected to the generation plants by transmission lines. They can be either overhead or underground cables.
Samira Boumous, Zouhir Boumous, Yacine Djeghader   +2 more
doaj   +1 more source

Mechanical Calculation of Power Lines and Strands in Overhead Transmission Lines

MATEC Web of Conferences, 2016
This paper discusses the issue of shape and stress of overhead transmission lines. It fully considers that the conductor is subjected to axial force, shear, bending moment simultaneousiy. And the flat wire is basically in the elastic range.
Li Yongping, Liu Yu, Zhang Jibin
doaj   +1 more source

ECONOMIC CORRECTION OF CURRENT DENSITIES IN THE WIRES OF THE EXISTING OVERHEAD LINES OF 110-220 KV

Известия высших учебных заведений: Проблемы энергетики, 2019
In this article, we present the methods used to date, the choice of the cross-sections of the wires of overhead transmission lines, taking into account not only the losses from the load currents, but also the corona losses and linear insulation of ...
A. A. Gerkusov, E. I. Gabdulvalieva
doaj   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

Advanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang, Chao Hsuan (Joseph) Sung, Haitao Yu, Ezra Sarmiento, Katarina Kotanchek, Ryan Christopher Lee, Michelle Chan, David Kisailus   +7 more
wiley   +1 more source

Power‐DETR: end‐to‐end power line defect components detection based on contrastive denoising and hybrid label assignment

IET Generation, Transmission & Distribution
Maintenance of power transmission lines is essential for the safe and reliable operation of the power grid. The use of deep learning‐based networks to improve the performance of power line defect detection faces significant challenges, such as small ...
Zhiyuan Xie, Chao Dong, Ke Zhang, Jiacun Wang, Yangjie Xiao, Xiwang Guo, Zhenbing Zhao, Chaojun Shi, Wei Zhao   +8 more
doaj   +1 more source