Results 11 to 20 of about 6,119 (211)
Insulator fault feature extraction system of substation equipment based on machine vision
IET Networks, EarlyView., 2022 Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang +4 more
wiley +1 more source
IEEE Access, 2020 This paper informs on the flashover strength of three materials: Delrin (polyoxymethylene), HDPE (high-density polyethylene) and Ultem (polyetherimide) with smooth surface finishes, in zero-grade air at -0.5, 0 and 0.5 bar gauge, and at <; 10%, ~50 ...
Ruairidh W. Macpherson +4 more
doaj +1 more source
Ain Shams Engineering Journal, 2023 The aim of this work is to model the influence of uneven contamination distribution under various humidity on the pollution flashover voltage of 11 kV porcelain insulator disc. Four scenarios of contamination distribution were proposed to test the sample
Ali Ahmed Salem +7 more
doaj +1 more source
Effect of Temperature on Creeping Flashover Voltage of Nanofilled Oil-Pressboard Insulation
IEEE Access, 2020 Creeping flashover (surface discharge) at oil-pressboard interface is considered a serious failure of the insulation system in power transformers. In this paper, creeping flashover voltage at oil-pressboard interface using the concept of nanofluids is ...
Mohamed E. Ibrahim +3 more
doaj +1 more source
Mechanism of saline deposition and surface flashover on high-voltage insulators near shoreline:mathematical models and experimental validations [PDF]
, 2019 This paper deals with sea salt transportation and deposition mechanisms and discusses the serious issue of degradation of outdoor insulators resulting from various environmental stresses and severe saline contaminant accumulation near the shoreline.
Chaudhary, Muhammad Akmal +2 more
core +2 more sources
IEEE Access, 2022 A suitable, non-standard method for artificial pollution testing using simulated acid rain pollution in a laboratory was developed in this work. The method is applicable to a wide range of climatic conditions and rain acidities.
Chibuike Ilomuanya +2 more
doaj +1 more source
Feasibility study on application of microwave radiometry to monitor contamination level on insulator materials [PDF]
, 2016 This paper introduces a novel method for monitoring contamination levels on high voltage insulators based on microwave radiometry. Present contamination monitoring solutions for high voltage insulators are only effective in predicting flashover risk when
Jiang, Y. +5 more
core +2 more sources
Prediction of Critical Flashover Voltage of High Voltage Insulators Leveraging Bootstrap Neural Network [PDF]
Electronics, 2020 Understanding the flashover performance of the outdoor high voltage insulator has been in the interest of many researchers recently. Various studies have been performed to investigate the critical flashover voltage of outdoor high voltage insulators analytically and in the laboratory. However, laboratory experiments are expensive and time-consuming. On
M. Tahir Khan Niazi +5 more
openaire +3 more sources
Unraveling the “U-Shaped” Dependence of Surface Flashover Performance on the Surface Trap Level
IEEE Access, 2019 The effects of surface traps on surface flashover remain controversial. To clarify the relation between surface flashover and surface trap level, in this work, the surface trap level of epoxy composites was modified by nanoparticles incorporation ...
Shengtao Li +6 more
doaj +1 more source
Impulse-driven surface breakdown data : a Weibull statistical analysis [PDF]
, 2012 Surface breakdown of oil-immersed solids chosen to insulate high-voltage, pulsed-power systems is a problem that can lead to catastrophic failure. Statistical analysis of the breakdown voltages, or times, associated with such liquid-solid interfaces can ...
Given, M +7 more
core +1 more source