Results 21 to 30 of about 17,092 (265)

Simulation analysis and calculation of electric field distribution characteristics of UHV wall bushing

open access: yesEnergy Reports, 2021
Facing the unbalanced development of resource distribution and productivity, China needs long-distance power transmission and distribution. The long-distance power transmission will lead to a lot of power loss in the process of transmission.
Yunfei Shi   +6 more
doaj   +1 more source

A rapid unmanned aerial vehicle inspection path planning method based on hybrid heuristic algorithm [PDF]

open access: yesE3S Web of Conferences
The advancement of unmanned aerial vehicle (UAV) and remote sensing technologies has fueled interest in automatic UAV inspection path planning based on inspection tasks.
Li Boya   +3 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

Wettability behavior and anti-icing property of superhydrophobic coating on HTV silicone rubber

open access: yesAIP Advances, 2020
Composite insulators, which use high temperature vulcanized (HTV) silicone rubber as shed material, are widely applied in transmission lines. Ice accumulation on their surfaces may inflict flashover accident and even massive power outage.
Jiaxiang Sun   +4 more
doaj   +1 more source

Description and study of UHV transmissions

open access: yes, 2022
UHV transmission technology generally includes AC transmission over ±1000kV voltage level and DC transmission over ±800kV voltage level. It has the advantages of large transmission capacity, long distance, low loss, and small size.
Yang, Haozheng
core   +1 more source

Urban heat vulnerability: A dynamic assessment using multi-source data in coastal metropolis of Southeast China

open access: yesFrontiers in Public Health, 2022
Extreme heat caused by global climate change has become a serious threat to the sustainable development of urban areas. Scientific assessment of the impacts of extreme heat on urban areas and in-depth knowledge of the cross-scale mechanisms of heat ...
Chaowei Wu   +11 more
doaj   +1 more source

The Research of real-time identification system of types of lightning failures of UHV transmission lines based on UV detection technique [PDF]

open access: yesE3S Web of Conferences, 2020
Egineering running experience shows that with the increase of the operating voltage of the transmission line, the lightning trip rate is increasing. According to theoretical calculation , UHV transmission lines should be provided with full lightning ...
Wang Yunlong   +3 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

Spatial assessment of urban heatwave vulnerability of coupling adaptability based on BPNN model: a case study of Xiamen City, China

open access: yesGeomatics, Natural Hazards & Risk, 2021
The continuous advancement of urbanization and the acceleration of global climate warming have severely aggravated the heatwave vulnerability of the urban complex human–land system.
Haifeng Yang
doaj   +1 more source

An Advanced Partial Discharge Recognition Strategy of Power Cable

open access: yesJournal of Electrical and Computer Engineering, 2015
Detection and localization of partial discharge are very important in condition monitoring of power cables, so it is necessary to build an accurate recognizer to recognize the discharge types.
Xiaotian Bi   +4 more
doaj   +1 more source

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