Results 1 to 10 of about 5,040 (292)

AC flashover performance of different shed configurations of composite insulators under fan-shaped non-uniform pollution

open access: yesHigh Voltage, 2018
Currently, it is founded that under unidirectional wind and certain landform, composite insulators are always fan-shaped non-uniformly polluted. In this paper, artificial pollution tests on three types of composite insulators with different shed ...
Zhijin Zhang   +5 more
doaj   +4 more sources

Improved Current Sensor for Water Diffusion Testing of Composite Insulators [PDF]

open access: yesSensors, 2019
An improved current sensor aimed at measuring currents of different parts in composite insulator samples was proposed. Conventional current sensors used in water diffusion tests aim to examine the performance of composite insulators, however, it is ...
Zhonghao Zhang   +3 more
doaj   +3 more sources

Durability forecast of long rod composite insulators operating under variable mechanical loading conditions [PDF]

open access: yesArchives of Electrical Engineering, 2022
Suspension line insulators are during their operation subject to static forces and variable loads, usually of a cyclic character. These variable loads have a significant impact on the mechanical durability of composite insulators.
Jerzy Bielecki, Jacek Wańkowicz
doaj   +2 more sources

Study on abnormal heating of polluted composite insulators in transmission lines

open access: yesXi'an Gongcheng Daxue xuebao, 2023
This paper investigates the impact of surface pollution on abnormal heating with 110 kV composite insulators as the research subject. Firstly, infrared inspections were conducted on three full-sized composite insulators at various pollution classes, and ...
CAO Wen   +4 more
doaj   +2 more sources

Study on Hydrophobicity Detection of Composite Insulators of Transmission Lines by Image Analysis

open access: yesIEEE Access, 2019
Hydrophobicity of the composite insulators is a parameter which is closely related to the insulation properties. In order to determine whether the insulator in the transmission line needs to be withdrawn, it is necessary to objectively and accurately ...
Xinbo Huang   +3 more
doaj   +3 more sources

A finite element with statistical analysis study to investigate the electrical performance of composite insulators under water droplet impact [PDF]

open access: yesScientific Reports
Composite insulators demonstrate superior electrical performance in contrast to standard insulators. Nevertheless, the deterioration of composite insulator and the challenges in identifying defects are the primary drawbacks of these insulators.
Lyamine Ouchen   +8 more
doaj   +2 more sources

A Proposal for the Evaluation of HTV Silicone Rubber Composite Insulators [PDF]

open access: yesPolymers, 2021
Christos-Christodoulos A Kokalis   +2 more
exaly   +2 more sources

Fuzzy comprehensive state evaluation of housing of silicone rubber insulators based on level difference maximization [PDF]

open access: yesArchives of Electrical Engineering, 2022
The aging of composite insulators in outdoor operation for a long time has a direct impact on the safe and stable operation of the power grid. To solve this problem, fuzzy comprehensive evaluation of composite insulators based on level difference maximum
Sihua Wang   +3 more
doaj   +1 more source

Impact of increased temperature of lower end-fitting of a composite long rod insulator on its mechanical strength under variable loads [PDF]

open access: yesArchives of Electrical Engineering, 2023
This paper describes results of tensile mechanical strength testing of two types of composite suspension line insulators from two manufacturers. In order to take into account the operation of composite insulators in overhead transmission lines with high ...
Jerzy Bielecki   +2 more
doaj   +1 more source

Resource utilization of composite insulator silicone rubber [PDF]

open access: yesE3S Web of Conferences, 2020
Composite insulators provide highly effective insulation support, and their application in power transmission lines has seen rapid growth in recent years.
Jiang Yuze   +4 more
doaj   +1 more source

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