Results 1 to 10 of about 48,127 (173)

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

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

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

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

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

Improved information entropy weighted vague support vector machine method for transformer fault diagnosis

open access: yesHigh Voltage, 2022
A combined model based on improved information entropy and vague support vector machine (IVSVM) is introduced into transformer fault diagnosis using dissolved gas analysis in oil (DGA).
Hongru Zhang   +4 more
doaj   +1 more source

Switching Impulse Test of UHV Live Working Insulating Tool and Experimental Electrode Optimization

open access: yesZhongguo dianli, 2022
At present, the electrode arrangement still follows the low voltage level standard when the UHV live-working insulating tools are tested for operation impulse withstand voltage.
Guangkai YU   +4 more
doaj   +1 more source

UHV piezoelectric translator [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1986
Abstract A UHV compatible piezoelectric translator has been developed to correct for angular misalignments in the crystals of a UHV X-ray monochromator. The unit is small, bakeable to 150°C, and use only ceramic materials for insulation. We report on the construction details, vacuum compatibility, mechanical properties, and uses of the device.
Oversluizen, T., Watson, G.
openaire   +1 more source

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