IEEE Access, 2023 Measuring the leakage current and voltage of an insulator is widely used to calculate indices for the pollution estimation of overhead line insulator strings.
Rodrigo J. Villalobos +5 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, 2021 This work aimed to study the influence of contamination profiles and humidity on flashover electrical characteristics of polluted insulators. Firstly, the flashover tests on cap and pin glass insulators under four pollution levels represented by salinity
A. Salem +6 more
semanticscholar +1 more source
Non-uniform Pollution Method and Pollution Flashover Characteristics of Transmission Line Insulators
Zhongguo dianli, 2019 At present, pollution of insulators in artificial contamination test is done by uniform smearing, but natural pollution, affected by wind, raining, insulator shape, pollution, pollutant particle size and other factors, is a non-uniform accumulation on ...
Qin LIU, Yiwen WANG
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
Simulation on Deposition Characteristics of Contamination Particles in Fog-Haze Environment
IEEE Access, 2020 Fog-haze weather can aggravate the particles deposition on the insulator surface, which will cause pollution flashover. In this paper, the multiphysics software COMSOL was used to numerically simulate the particle deposition characteristics on the ...
Yukun Lv, Weiping Zhao, Qingzhuang Song
doaj +1 more source
MAIN BIRD EXCREMENT CONTAMINATION TYPE CAUSING INSULATOR FLASHOVERS IN 110 kV OVERHEAD POWER LINES IN ESTONIA; pp. 211–224 [PDF]
Oil Shale, 2013 The study aims to elucidate which type of bird excrement contaminaÂtion causes insulator flashovers in 110 kV overhead power lines in Estonia. Laboratory wetting and bird streamer tests performed on naturally contaminated glass and composite insulators ...
PAUL TAKLAJA +3 more
doaj +1 more source
The electrical behaviour of polymer insulator under different weather conditions [PDF]
, 2015 This paper presents the behavior of 33kV polymer insulator under nominal voltage and impulse by means of lightning activities. The electrical performance of the insulator is translated to electric field under uniform weather conditions which comprises of
Ab Kadir, Mohd Zainal Abidin +2 more
core +1 more source
Non-Uniform Distribution of Contamination on Composite Insulators in HVDC Transmission Lines
Applied Sciences, 2018 In recent years, the air particulate pollutants formed by the combustion of fossil fuels and the emission of industrial waste gases have constantly been produced, and the polluted particles deposit also seriously affects social production and people ...
Zhijin Zhang +3 more
doaj +1 more source
Full Bulk Spin Polarization and Intrinsic Tunnel Barriers at the Surface of Layered Manganites [PDF]
, 2005 Transmission of information using the spin of the electron as well as its charge requires a high degree of spin polarization at surfaces. At surfaces however this degree of polarization can be quenched by competing interactions.
Badica, Elvira +7 more
core +2 more sources