Results 1 to 10 of about 545 (157)

Development of a monitoring system for disassembled towers with internal suspension poles. [PDF]

Sci Rep, 2022
AbstractThe traditional construction monitoring methods of suspended pole-mounted decomposed towers are mostly manual monitoring. The monitoring personnel has multiple blind spots, and the possibility of misjudgment based on personal experience is relatively large.
Zhang LB, Tang B, Li K, Shang ZY, Wang Y, Li HB.   +5 more
europepmc   +5 more sources

Efficient Vertical Structure Correlation and Power Line Inference [PDF]

Sensors
High-resolution three-dimensional data from sensors such as LiDAR are sufficient to find power line towers and poles but do not reliably map relatively thin power lines. In addition, repeated detections of the same object can lead to confusion while data
Paul Flanigen, Ella Atkins, Nadine Sarter   +2 more
doaj   +2 more sources

Application of Three-dimensional Design Software in Transmission Lines [PDF]

E3S Web of Conferences, 2021
The digitization of power grid projects is a development requirement in the era of big data, as well as an inevitable requirement for the State Grid Corporation of China to build digital power grids and improve life-cycle management.
Nie Kejian, Yu Xinming, Chen Yuanhao, Lin Yinhe, Ye Xin, Xie Ming   +5 more
doaj   +1 more source

Transformation plan for differentiated lightning protection of power supply lines in a mountainous oil transmission station

You-qi chuyun, 2022
In order to ensure the reliable operation of oil transmission stations and improve the lightning protection performance of their power supply lines, the lightning accidents occurred to power supply lines in the Anshun Station in the southern mountainous ...
Jian WANG, Xingwan LIAO, Mingjian LIN, Yeqiang DENG, Qiang WU, Muzi LI, Caiwei PAN   +6 more
doaj   +1 more source

Comparative Analysis of Slenderness Ratio Calculation Methods of Cross Bracings for Towers Between China and EU Overhead Transmission Line Standards

南方能源建设, 2023
[Introduction] This paper aims to effectively avoid the design quality problems caused by the difference between domestic and foreign engineering design specifications. The study makes comparative analysis of slenderness ratio of cross bracings for angle
Molin SUN, Zhixiang ZHUANG, Hongliang GUO, Wei HOU   +3 more
doaj   +1 more source

DEVELOPMENT OF UAV AIR ROADS BY USING 3D GRID SYSTEM [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
With the drastic development of low-altitude UAV (Unmanned Aerial Vehicle) technology, UAV will be used for long-distance logistics in the near future. Many countries begin to develop UTM (UAV Traffic Management) system, and one of the objectives for the
J. Youn, D. Kim, T. Kim, J. H. Yoo, B. J. Lee   +4 more
doaj   +1 more source

Construction of bulk solutions for towers of pole-skipping points

Physical Review D, 2022
The pole-skipping phenomenon has been proposed as a connection between chaotic properties of black hole geometries and special points where regular solutions of linearized Einstein equations at horizons have extra free parameters. In this work, we pursue the special points in the near-horizon analysis of integer spin-$\ell$ fields on the Rindler-AdS ...
Keun-Young Kim, Kyung-Sun Lee, Mitsuhiro Nishida   +2 more
openaire   +2 more sources

Rotor loss and temperature variation under single and combined faults composed of static air‐gap eccentricity and rotor inter‐turn short circuit in synchronous generators

IET Electric Power Applications, 2021
In this study, the rotor loss as well as the temperature variations due to the static air‐gap eccentricity (SAGE) and the rotor inter‐turn short circuit (RISC) in synchronous generators is presented.
Yu‐Ling He, Wen Zhang, Ming‐Xing Xu, Wen‐Qiang Tao, Hui‐Lan Liu, Long‐Jiang Dou, Shu‐Ting Wan, Jun‐Qing Li, David Gerada   +8 more
doaj   +1 more source

Application of Catenary Equation in Calculation of Transmission Line Parameters

Zhejiang dianli, 2022
In order to obtain line parameters instantaneously， efficiently and accurately during overhead transmission line patrol， line trajectories are fitted by catenary equation and UAV.
WU Chunhui, ZHU Yizhen, WANG Xiao
doaj   +1 more source

Holographic symmetry algebras for gauge theory and gravity

Journal of High Energy Physics, 2021
All 4D gauge and gravitational theories in asymptotically flat spacetimes contain an infinite number of non-trivial symmetries. They can be succinctly characterized by generalized 2D currents acting on the celestial sphere.
A. Guevara, E. Himwich, M. Pate, A. Strominger   +3 more
doaj   +1 more source