Results 1 to 10 of about 64,242 (295)

Research and application of UHV power transmission in China

open access: yesHigh Voltage, 2018
The power demand increases rapidly in China; however, the areas of huge power demands are of long distance from most areas of abundant energy resource in the country. Therefore, China put in great effort to develop
Yinbiao Shu, Weijiang Chen
doaj   +2 more sources

A versatile UHV transport and measurement chamber for neutron reflectometry under UHV conditions [PDF]

open access: yesReview of Scientific Instruments, 2016
We report on a versatile mini ultra-high vacuum (UHV) chamber which is designed to be used on the MAgnetic Reflectometer with high Incident Angle of the Jülich Centre for Neutron Science at Heinz Maier-Leibnitz Zentrum in Garching, Germany. Samples are prepared in the adjacent thin film laboratory by molecular beam epitaxy and moved into the compact ...
A. Syed Mohd   +6 more
openaire   +6 more sources

Study on Ecological Environmental Impact Assessment Index System of UHV AC Transmission and Transformation Engineering-A Case Study of 1000kv UHV Transmission and Transformation Engineering from Zhangbei to Xiongan [PDF]

open access: yesE3S Web of Conferences, 2023
Ultra-high voltage (UHV) power grid is a new transmission and transformation technology, which has the advantages of large transmission capacity, long transmission distance, low line loss, saving land resources and obvious economic benefits.
Song Jiming   +4 more
doaj   +1 more source

CFD numerical simulation of aerodynamic characteristics of a UHV steel tubular transmission tower

open access: yesZhejiang dianli, 2023
The CFD (computational fluid dynamics) numerical simulation is used to study the aerodynamic characteristics of a UHV steel tubular transmission tower. A refined CFD numerical model of the whole transmission tower is established based on SOLIDWORKS and ...
WANG ZhenGuo   +4 more
doaj   +1 more source

Experimental Evaluations on Seismic Performances of Porcelain and GFRP Composite UHV GIS Bushings

open access: yesMaterials, 2022
To evaluate the seismic performances of the ultra-high voltage (UHV) gas-insulated switchgear (GIS) bushings made by porcelain and glass fiber reinforced polymer (GFRP) composite materials, shaking table tests were conducted on the two full-scale GIS ...
Chang He, Z. He, Q. Xie
semanticscholar   +1 more source

Simulation Design of a Live Working Manipulator for Patrol Inspection in Power Grid

open access: yesJournal of Robotics, 2022
The distribution line network is the electric power infrastructure directly facing the users, with the characteristics of large coverage and complex network, and its operation safety is directly related to the stability and reliability of the power ...
Tao Xie   +4 more
doaj   +1 more source

Simulation calculation and comparative analysis of three-dimensional temperature field of ultra high voltage through wall bushing under different current carrying capacity

open access: yesEnergy Reports, 2021
As the key equipment of UHV transmission and transformation line, UHV bushing needs to carry the ultra-high voltage and large current of UHV power system at the same time.
Yunfei Shi   +5 more
doaj   +1 more source

Measurement of combined gap in whole process of transmission lines' live working based on 3D laser point cloud [PDF]

open access: yesArchives of Electrical Engineering, 2023
Transmission lines’ live working is one of an effective means to ensure the reliable operation of transmission lines. In order to solve the unsafe problems existing in the implementation of traditional live working, the paper uses ground-based lidar to ...
Ying Wang   +4 more
doaj   +1 more source

Contamination degree prediction of insulator surface based on exploratory factor analysis‐least square support vector machine combined model

open access: yesHigh Voltage, 2021
This study presents a combined model based on the exploratory factor analysis (EFA) and the least square support vector machine (LSSVM) to predict the contamination degree of insulator surface. Firstly, EFA method is utilised to reduce numerous influence
Jiaxiang Sun   +5 more
doaj   +1 more source

Extensible Classification Method for Power Personnel Behavior Based on Pose Estimation

open access: yesZhongguo dianli, 2023
Power personnel behavior recognition is a critical component for the safe operation and maintenance of the power system. However, current personnel behavior recognition algorithms, which primarily rely on support vector machines and multi-layer ...
Zhenzhen ZHOU   +7 more
doaj   +1 more source

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