Results 61 to 70 of about 369,200 (203)

Research on dynamic capacity expansion system of overhead distribution lines based on wireless sensor

Diance yu yibiao
In the context of the construction of novel power systems, the thermal stability limit capacity of overhead distribution lines, especially the transmission capacity of interconnected lines in N-1 mode, has become a bottleneck that restricts the flexible ...
ZHANG Shusen, SUN Jianchao, JIANG Huahua, LI Lei, YANG Changqing, YUAN Jiawei   +5 more
doaj   +1 more source

DEVELOPMENT OF INFORMATION-MEASURING SYSTEM FOR INVESTIGATION OF OPERATING MODES OF OVERHEAD POWER LINES

Измерение, мониторинг, управление, контроль, 2022
Background. As a result of the analysis of scientific research and statistical data, it is shown that the actual task of the power grid complex of the Russian Federation is to increase the reliability of distribution electrical networks and the quality
V.A. Listyukhin, E.A. Pecherskaya
doaj   +1 more source

An Optimized Coordination Strategy between Line Main Protection and Hybrid DC Breakers for VSC-Based DC Grids Using Overhead Transmission Lines

Energies, 2019
Compared with alternating current (AC) power grids, the voltage-sourced converter (VSC)-based direct current (DC) grid is a system characterized by “low damping„, as a result, once there is a short-circuit fault on the DC transmission line ...
Xiangyu Zheng, Rong Jia, Linling Gong, Guangru Zhang, Xiangyu Pei   +4 more
doaj   +1 more source

THE POWER SUPPLY SYSTEM OF THE RAILWAY AC WITH MODULAR INSERTS OF DC

Nauka ta progres transportu, 2008
The structure of the insert of direct current on the traction substation, which makes it possible to remove a number of deficiencies in the acting feeding scheme of the overhead electric transport power line of alternating current, is proposed ...
N. V. Panasenko, Yu. P. Honcharov, V. V. Ivahno, O. Ye. Ivanov, V. N. Kozachok, P. P. Morozov   +5 more
doaj  

AUTONOMOUS CAPACITIVE POWER SUPPLY FOR DEVICES WHICH MEASURES THE PARAMETERS OF THE OVERHEAD POWER LINES

Известия высших учебных заведений: Проблемы энергетики, 2017
This article consider the main types of autonomous power sources for devices, which measures characteristics of overhead power lines. The calculations of the power of capacitive power supply depending of its length for the 110 kV line were done.
V. K. Kozlov, E. R. Kirzhatskikh
doaj   +1 more source

ADULT CANCERS NEAR HIGH-VOLTAGE OVERHEAD POWER LINES

ISEE Conference Abstracts, 2013
Extremely low-frequency magnetic fields are designated as possibly carcinogenic in humans, based on an epidemiologic association with childhood leukemia. Evidence for associations with adult cancers is weaker and inconsistent.We conducted a case-control study to investigate risks of adult cancers in relation to distance and extremely low-frequency ...
Paul, Elliott, Gavin, Shaddick, Margaret, Douglass, Kees, de Hoogh, David J, Briggs, Mireille B, Toledano   +5 more
openaire   +2 more sources

Methods of image recognition of overhead power line insulators and ice types based on deep weakly‐supervised and transfer learning

IET Generation, Transmission & Distribution, 2022
Y. Hao, Wei Liang, Lin Yang, Jinqiang He, Jianrong Wu   +4 more
semanticscholar   +1 more source

Optimisation design of real‐time wireless power supply system overhead high‐voltage power line

IET electric power applications, 2018
Efficient and reliable power supply has been considered as the fundamentality of applying monitoring equipment overhead high-voltage power line (HVPL). Several kinds of energy harvesting devices are investigated and compared.
Wei Wang, Zhong-Liang Zhu, Qi Wang, Hu Minqiang   +3 more
semanticscholar   +1 more source

Making predictions for overhead power lines applying predictive analytics

Вестник Северо-Кавказского федерального университета
Introduction. Currently, failures are one of the main and urgent problems for the normal functioning of power supply systems, they are at first glance unpredictable, however, in addition to accidental, there are failures that occur according to some ...
Yu. N. Kondrashova, A. M. Tretyakovͬ, A. V. Shalimov   +2 more
doaj   +1 more source

Impact of Conductor Temperature Time–Space Variation on the Power System Operational State

Energies, 2018
The conductor temperature of an overhead transmission line varies with time and space, which has an important impact on the system operation. In this paper, the conductor temperature is solved iteratively by the CIGRE heat balance equation.
Yanling Wang, Yang Mo, Mingqiang Wang, Xiaofeng Zhou, Likai Liang, Pei Zhang   +5 more
doaj   +1 more source