Results 21 to 30 of about 962,143 (292)

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 In order to determine whether the insulator in the transmission line needs to be withdrawn, it is necessary to objectively and accurately ...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   +1 more source

Rubber Impact on 3D Textile Composites [PDF]

open access: yes, 2011
A low velocity impact study of aircraft tire rubber on 3D textile-reinforced composite plates was performed experimentally and numerically. In contrast to regular unidirectional composite laminates, no delaminations occur in such a 3D textile composite ...
DUPLESSIS KERGOMARD, Yann   +9 more
core   +1 more source

An Optimized Infrared Detection Strategy for Defective Composite Insulators According to the Law of Heat Flux Propagation Considering the Environmental Factors

open access: yesIEEE Access, 2018
Composite insulators have been extensively adopted in electric transmission lines due to their preferable resistance to contamination flashover. To generally ensure the function of power networks, it is of crucial importance to perform regular online ...
Li Cheng   +3 more
doaj   +1 more source

Research of cycloaliphatic epoxy resin and silicone rubber composite insulator interface based on four‐electrode system and temperature rise model

open access: yesHigh Voltage, 2023
Interface degradation between mandrel and sheath can cause a decrease in insulation performance and mechanical strength of composite insulators. In this study, the interface ageing properties of cycloaliphatic epoxy resin and silicone rubber composite ...
Yunsong Wang   +4 more
doaj   +1 more source

Behaviour and design of composite beams subjected to negative bending and compression [PDF]

open access: yes, 2012
This paper investigates the behaviour of steel–concrete composite beams subjected to the combined effectsof negative bending and axial compression. For this study, six full-scale tests were conducted on compositebeams subjected to negative moment while ...
Uy, Brian (R9735)   +7 more
core   +1 more source

Condition assessment of composite insulators [PDF]

open access: yes, 2020
The application of composite insulators in high voltage transmission and distribution has progressively increased. In recent years, composite insulators have captured a large share of the market at certain voltages due to advantages of lightweight, low ...
Ramesh, Meghana
core   +1 more source

Study on the influence mechanism of ambient humidity on the temperature rise of decay‐like composite insulators

open access: yesHigh Voltage, 2022
At present, observing the temperature rise of composite insulators is an effective method for the detection of decay‐like defects. However, ambient humidity will affect the temperature rise of composite insulators, which will cause problems in screening ...
Zheng Zhong   +4 more
doaj   +1 more source

Fiber Bragg grating monitors for thermal and stress of the composite insulators in transmission lines

open access: yesGlobal Energy Interconnection, 2018
Running composite insulators are prone to failure due to their harsh surrounding work environment, which directly affects the safe operation of transmission lines.
Heming Deng   +5 more
doaj   +1 more source

Dry band formation mechanism of composite insulator with generalized finite difference-time domain

open access: yes电力工程技术, 2022
The pollution flashover of composite insulators is mainly the flashover caused by alternate occurrence of arc development and dry band formation. At present, researchers have investigated the development of insulator arc along the surface.
HE Jiahong, DONG Bowen, HE Kang
doaj   +1 more source

Testing Method for Composite Insulators Interface Based on Nonlinear Ultrasonic

open access: yesIEEE Access, 2019
The interface is the weakness of composite insulators. As the interface bonding fails, the uniform distribution of electric field will be affected, which accelerates the aging of composite insulators and affects the safe operation of transmission lines ...
Sida Zhang   +4 more
doaj   +1 more source

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