Results 41 to 50 of about 43,728 (206)

Modeling of Electromagnetic Fields Along the Route of a Gas-Insulated Line Feeding Traction Substations

Energies
Power supply for traction substations (TSs) of AC railways has traditionally been provided by 110–220 kV overhead transmission lines (OHL). These OHLs can be damaged during strong winds and ice formation.
Andrey Kryukov, Hristo Beloev, Dmitry Seredkin, Ekaterina Voronina, Aleksandr Kryukov, Iliya Iliev, Ivan Beloev, Konstantin Suslov   +7 more
doaj   +1 more source

Influence of geometry and operation conditions on the surface charge characteristics of DC‐GIL spacer

IET Generation, Transmission & Distribution, 2022
The surface charge characteristics of a ±200 kV gas‐insulated transmission lines spacer are studied to understand the influence of geometry, ion transportation, applied voltage, and gas pressure on the surface charge distribution.
Xiaolong Li, Guangkuo Zhang, Xin Lin
doaj   +1 more source

Fast Monocular Measurement via Deep Learning-Based Object Detection for Real-Time Gas-Insulated Transmission Line Deformation Monitoring

Energies
Deformation monitoring of Gas-Insulated Transmission Lines (GILs) is critical for the early detection of structural issues and for ensuring safe power transmission.
Guiyun Yang, Wengang Yang, Entuo Li, Qinglong Wang, Huilong Han, Jie Sun, Meng Wang   +6 more
doaj   +1 more source

Determination of the Operating Temperature of the Gas-Insulated Transmission Line

Applied Sciences, 2020
Gas-insulated lines (GILs) have been increasingly used as high-current busducts for high-power transmission. Temperature is one of the most important factors affecting the performance and ampacity of GILs. In this paper, an analytical method was proposed
Tomasz Szczegielniak, Dariusz Kusiak, Paweł Jabłoński   +2 more
doaj   +1 more source

Numerical simulation and analysis of multi-physics fields in three-phase enclosed GIL

Zhejiang dianli
The multi-physics field distribution （including electric， magnetic， thermal， and flow fields） inside gas-insulated transmission lines （GIL） offers crucial theoretical support for the design and operational monitoring of GIL systems.
XIE Shengyi, WU Fangfang, ZHU Min, ZHAO Xuyang, SHENG Yehong, XU Aimin   +5 more
doaj   +1 more source

Electrical inspection mark of UHV transmission line based on GaN material

工程科学学报, 2018
At present, the traditional insulated pole electroscope is used for electrical inspection in high-voltage transmission lines. However, when it is used in ultra-high voltage (UHV) transmission lines, the length of its insulated rod is large, and there are
CHEN Kang, WANG Li-nong, LI En-wen, SONG Bin, FANG Ya-qi, LI Xiao-chun, CHEN Tian-zhu, JIAN Si-liang   +7 more
doaj   +1 more source

Curing kinetics and residual stress modelling of gas‐insulated transmission lines tri‐post insulators

High Voltage
The tri‐post insulator is a core component within the gas‐insulated transmission lines (GIL), providing both electrical insulation and mechanical support.
Yuhuai Wang, Songtao Liu, Jin Li, Hucheng Liang, Meng Xiao, Yun Chen, Boxue Du   +6 more
doaj   +1 more source

Tailoring of electron flow current in magnetically insulated transmission lines

Physical Review Special Topics. Accelerators and Beams, 2009
It is desirable to optimize (minimizing both the inductance and electron flow) the magnetically insulated vacuum sections of low impedance pulsed-power drivers. The goal of low inductance is understandable from basic efficiency arguments. The goal of low
J. P. Martin, M. E. Savage, T. D. Pointon, M. A. Gilmore   +3 more
doaj   +1 more source

Very long distance connection of gigawatt size offshore wind farms: extra high-voltage ac versus high-voltage dc cost comparison [PDF]

, 2016
This study presents a cost comparison between commercially available high-voltage DC (HVDC) and extra high-voltage AC shore connection (±320 kV voltage source converter and 420 kV-50 Hz single-core and three-core cables), for a 1 GW offshore wind farm ...
LAURIA, Stefano, MACCIONI, Marco, Palone, Francesco, Schembari, Maddalena   +3 more
core   +1 more source

Index to 1981 NASA Tech Briefs, volume 6, numbers 1-4 [PDF]

, 1986
Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage ...

core   +1 more source