Identification of acoustic signals of surface discharges on glass insulator under different contamination levels [PDF]
, 2011 Surface discharge is a common phenomenon that normally occurs on the insulator surface under wet contamination condition. The generation of small sparks from the surface discharge would develop many types of signals.
Ahmed Algeelani, Nasir +5 more
core +1 more source
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
Monitoring insulator contamination level under dry condition with a microwave reflectometer [PDF]
, 2015 Build-up of surface contamination on high voltage insulators can lead to an increase in leakage current and partial discharge, which may eventually develop into flashover.
McMeekin, Scott +16 more
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Comparison on space charge and voltage distribution of high voltage insulator subjected to different contamination levels [PDF]
, 2019 This paper presents the study of space charge distribution on high voltage (HV) insulators under different levels of contamination. Two types of HV insulators were used in this work particularly glass and porcelain insulators.
N. A. Samuri +11 more
core +1 more source
High Voltage, 2021 Insulator pollution degree detection is of great significance for preventing a flashover. Equivalent salt deposit density, leakage current, and surface pollution layer conductivity are commonly used to describe insulator pollution degree; however, all ...
Chengfeng Yin +5 more
doaj +1 more source
Surface Discharge Analysis of High Voltage Glass Insulators Using Ultraviolet Pulse Voltage
Energies, 2019 Surface discharges are precursors to flashover. To pre-empt the occurrence of flashover incidents, utility companies need to regularly monitor the condition of line insulators.
Saiful Mohammad Iezham Suhaimi +5 more
doaj +1 more source
Classification of Contaminated Insulators Using k-Nearest Neighbors Based on Computer Vision
Computers, 2021 Contamination on insulators may increase the surface conductivity of the insulator, and as a consequence, electrical discharges occur more frequently, which can lead to interruptions in a power supply.
Marcelo Picolotto Corso +5 more
doaj +1 more source
Collision Mechanism and Deposition Characteristics of Particles on the Catenary Insulator Surface
, 2020 To solve the problem of contamination flashover of a catenary insulator in an electrified railway, the collision mechanism and deposition characteristics of contamination particles on the insulator surface should be studied to ensure the safe operation ...
Chenrui Zhang +3 more
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Space charges analysis on insulator with uniform layer contamination effect
, 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) +4 more
core +2 more sources
IoT-Based Image Segmentation and Fuzzy Mamdani for Ceramic Insulator Contaminant Identification
Jurnal Ilmiah TelsinasCeramic insulators on 150 kV transmission lines are prone to contamination from dust and moss, which can degrade insulation performance and increase the risk of system failure.
Rahul Maryulis Putra +2 more
doaj +1 more source