Results 11 to 20 of about 6,364 (263)

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

Research on Defect Detection Technology of Composite Insulator Sheath [PDF]

open access: yesE3S Web of Conferences, 2021
The composite insulator sheath plays an important role in protecting the core rod and insulation. The thickness of the sheath must meet the corresponding standard requirements.
Li Wenbo   +7 more
doaj   +1 more source

Cause analysis on fracture of a 500 kV composite insulator

open access: yesZhejiang dianli, 2023
In order to study the cause of wire falling accident caused by fracture of 500 kV composite insulator in the no-fly zone of a province, various inspections and tests were carried out on the accident insulator string according to the current standard. The
LI Bocheng   +6 more
doaj   +1 more source

Mechanical Behavior of Crimping Composite Post Insulator: Experimental and Simulation Study

open access: yesBuildings, 2023
The composite post insulator composed of a large diameter mandrel and flange pressed by a one-time integral pultrusion has high strength and good toughness and is widely used in the existing flexible converter valve.
Jin Xiao   +4 more
doaj   +1 more source

Analysis of the influence of glued flange joint damage on dynamic properties of composite insulator

open access: yesZhejiang dianli, 2022
In order to explore the relationship between glued flange joint damage and the change of dynamic characteristics of composite insulator bushing, the paper takes a ± 800 kV composite insulator as the research object and establishes the finite element ...
DI Yuelun   +3 more
doaj   +1 more source

Recycling alginate composites for thermal insulation

open access: yesCarbohydrate Polymers, 2021
We present a new method for the total functional recycling of alginate-based composite materials made via ionotropic gelation. The original material, an alginate/fiberglass foam with thermal insulation characteristics, was produced following a patented process in which fiberglass waste is embedded into the polyanionic gel matrix, and the resulting ...
Matteo Cibinel   +4 more
openaire   +4 more sources

Anomalous flashovers of silicone rubber insulators under the artificial rain test [PDF]

open access: yesArchives of Electrical Engineering, 2021
The wet flashover voltage of medium voltage insulators made of a silicone rubber is 8% lower than the wet flashover voltage of a porcelain insulator with an identical profile. These surprising results, obtained in 2012, were confirmed again in 2019.
Krystian Leonard Chrzan   +1 more
doaj   +1 more source

Optimal Design of Corona Ring for 132 kV Insulator at High Voltage Transmission Lines Based on Optimisation Techniques

open access: yesEnergies, 2023
The installation of a corona ring on an insulator string on a transmission line is one of the solutions to reduce the electric field stress surrounding the energised end of the insulator string. However, installing a corona ring with an optimum design to
Kalaiselvi Aramugam   +4 more
doaj   +1 more source

Pollution Flashover Characteristics of Composite Crossarm Insulator with a Large Diameter

open access: yesEnergies, 2021
The composite crossarm insulator differs greatly from the suspension insulator in structure and arrangement. This study aims to determine the pollution flashover characteristics of composite crossarm insulators under different voltage grades.
Jing Nan   +4 more
doaj   +1 more source

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