Results 81 to 90 of about 5,040 (292)

Vibration-Based Diagnostics of Non-Ceramic Insulators: Characterization of Signals

Vibration
This paper presents an experimental method for testing composite insulators based on vibration testing. The method used investigated the propagation, signal shape, and distortion of excited mechanical waves under the influence of defects.
Dániel Balogh, Richárd Cselkó, Gergely Márk Csányi   +2 more
doaj   +1 more source

Flashover due to lightning of composite insulators used ondistribution line [PDF]

, 1998
The problem of estimating lightning insulation strength of distribution line designs is complicated due to numerous factors. In general, classical techniques that account for air gap flashover do not apply. The fundamental reasons for these complications
Izzularab, M.K., Farag, A.S., Belhadj, C.A., Shwehdi, M.H.   +3 more
core  

Framework for aging of composite insulators to assist asset management

, 2010
This paper presents two technical frameworks that can be used to effectively monitor both ethylene propylene diene monomer (EPDM) and silicone rubber (SiR) composite insulators during their life in service, and provide a tool that assists asset managers ...
S.M. Rowland, Domingues, E. Da Silva, A. Tzimas, Rowland, S. M.; id_orcid, E. Da Silva Domingues, Tzimas, A.   +5 more
core   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Research Progress on Aging Detection of Composite Insulators Based on Spectroscopy

Photonics
The safety of composite insulators in high-voltage transmission lines is directly related to the stable operation of the power system, which is a fundamental condition for the normal functioning of people’s lives and industrial production.
Junfei Nie, Yunpiao Cai, Jinke Chen, Furong Chen, Jiapei Cao, Quan Li, Zhenlin Hu   +6 more
doaj   +1 more source

Reconfigurable Logic‐in‐Memory Operations Enabled by Triple‐Gated Feedback Field‐Effect Transistors for Area‐Efficient Computing

Advanced Engineering Materials, EarlyView.
A reconfigurable logic‐in‐memory cell composed of triple‐gated feedback field‐effect transistors implements multiple combinational logic functions within a single configuration. By utilizing program gates as dynamic input terminals, the proposed cell performs full adder, full subtractor, 2‐to‐1 multiplexer, and 4‐to‐2 encoder operations without ...
Minhyeok Seol, Yunwoo Shin, Donghyung Lee, Dongki Kim, Kyoungah Cho, Sangsig Kim   +5 more
wiley   +1 more source

Corona discharges on the surfaces of high voltage composite insulators

, 2009
The degradation of high voltage electrical insulation is a prime factor that can significantly influence the reliability performance and the costs of maintaining high voltage electricity networks. Little information is known about the system of localized
Hinde, David Derek
core  

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Method for Identifying Abnormal Hot Spots on the Surface of Composite Insulators

Guangtongxin yanjiu
【Objective】To avoid the operational risk of high-voltage transmission lines caused by thermal faults of composite insulators, a method for identifying abnormal hot spots on the surface of composite insulators is studied.【Methods】Three types of abnormal ...
LIU Yao
doaj  

Implementation of statistical principles to reflect the long term performance of composite insulators

, 2011
There are numerous advantages of polymeric composite insulators over the traditional ceramic ones. However composite insulators, being comprised of organic elements, age more rapidly over time.
Antonios Tzimas, Tzimas, Antonios, Simon M. Rowland, Rowland, Simon M.; id_orcid   +3 more
core   +1 more source