Results 41 to 50 of about 560,992 (202)
The Journal of Engineering, 2019 The contaminants accumulated on the surface of transmission line insulator mainly come from the suspended particles in the air. Therefore, it is necessary to consider meteorological factors and environmental factors in the prediction of insulator ...
Rumeng Wang +3 more
doaj +1 more source
Sensors, 2015 The accurate estimation of deposits adhering on insulators is of great significance to prevent pollution flashovers which cause huge costs worldwide. Researchers have developed sensors using different technologies to monitor insulator contamination on a ...
Ling Ruan +4 more
doaj +1 more source
Space charges analysis on insulator with uniform layer contamination effect [PDF]
, 2019 High voltage direct current (HVDC) transmission provides an attractive alternative for bulk power transfer. However, HVDC transmission may have loss about half per unit length of high voltage alternating current (HVAC) at the same amount of power carried.
Kandar, Mohd Haris Asyraf Shee; Universiti Tun Hussein Onn Malaysia (UTHM) +9 more
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The Journal of Engineering, 2018 In order to attain the pollution characteristics difference between composite rod insulators and standard disc-type suspended insulator which is critical to the insulation selection of transmission line, pollution accumulated on composite rod insulators ...
Li Te +5 more
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High Voltage, 2018 Anticorrosion coatings are commonly applied to prevent rust-based corrosion in transmission towers. Unfortunately, anticorrosion coatings may drip onto the surface of composite insulators during the construction process, which is likely to do harm to ...
Mei Hongwei +4 more
doaj +1 more source
simulation and analysis of uniform and non-uniform (longitudinal and fan-shaped) pollutions effect on the potential and electric field distribution of polymeric insulator using finite element method [PDF]
مجله مدل سازی در مهندسی, 2019 Pollution is known as one of the important and effective factors on the performance of polymeric insulators. In practice, the deposit contamination on the insulator surface is not uniform completely and is non-uniform contamination. So far, comprehensive
jaber dadashizadehsamakosh +1 more
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Effects of spin symmetry breaking in topological insulators [PDF]
, 2015 Topological insulators are one of the most thoroughly investigated systems in condensed matter physics over the last years. In these systems, a prominent role is inevitably taken by time-reversal symmetry, which leads to Kramers theorem and symmetry ...
Orth, Christoph
core +1 more source
Evaluation of dielectric strength of SiR/TiO(2) composites using feed-forward neural network
IET Nanodielectrics, 2020 Among the recently insulating materials broadly utilized in high voltage outdoor insulation, silicone rubber (SiR) has gotten the foremost consideration. Actually, SiR is becoming an efficient countermeasure to insulator contamination issues.
Shaymaa A. Qenawy +3 more
doaj +1 more source
Simulation Study on the Effects of DC Electric Field on Insulator Surface Pollution Deposit
Energies, 2018 Energized insulator’s surface contamination is greatly affected by its electric field properties. However, few reports about the electric field influencing mechanism on the pollution deposition have been presented.
Dongdong Zhang +4 more
doaj +1 more source
Electrical insulator defect detection with incomplete annotations and imbalanced samples
IET Generation, Transmission & DistributionInsulators are one of the key components in high‐voltage power systems that prevent transmission lines from grounding. Since they are exposed to different kinds of harsh environments and climates, periodic inspection is indispensable for the safety and ...
Fengqian Pang +2 more
doaj +1 more source