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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
Copper contaminated insulating mineral oils-testing and investigations
IEEE Transactions on Dielectrics and Electrical Insulation, 2013 Reactions between the liquid insulation and the copper conductors in power transformers and other electrical apparatus may lead to the formation of dissolved and suspended copper in the insulating oil. In this work a study concerning the correlation between the copper form and the dielectric properties of the fluid is presented.
DE CARLO, Rosa Maria +4 more
openaire +1 more source
Simulation of Contamination Deposition on Typical Shed Porcelain Insulators
Energies, 2017 The contamination deposition characteristics of insulators can be used in the development of antifouling work. Using COMSOL software, numerical simulations on the pollution-deposited performance of a porcelain three-umbrella insulator and porcelain bell ...
Yukun Lv +3 more
doaj +1 more source
Metallic properties of magnesium point contacts [PDF]
, 2009 We present an experimental and theoretical study of the conductance and stability of Mg atomic-sized contacts. Using Mechanically Controllable Break Junctions (MCBJ), we have observed that the room temperature conductance histograms exhibit a series of ...
A I Mares +8 more
core +3 more sources
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
Bulk contribution to magnetotransport properties of low defect-density Bi$_2$Te$_3$ topological insulator thin films [PDF]
, 2018 An important challenge in the field of topological materials is to carefully disentangle the electronic transport contribution of the topological surface states from that of the bulk.
Brinkman, Alexander +2 more
core +3 more sources
High Voltage Insulator Surface Evaluation Using Image Processing
, 2017 High voltage insulators are widely deployed in power systems to isolate the live- and dead-part of overhead lines as well as to support the power line conductors mechanically.
Bagheri, Mehdi +2 more
core +1 more source
Effect of surface energy on the contamination characteristics of porcelain double umbrella insulators [PDF]
Archives of Electrical EngineeringTo explore the influence of surface energy on the contamination characteristics of insulators, COMSOL Multiphysics software was used to simulate the contamination characteristics of XWP 2-160 insulators under wind tunnel conditions, and the rationality ...
Yukun Lv +3 more
doaj +1 more source
Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects
Advanced Engineering Materials, EarlyView.Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini +6 more
wiley +1 more source