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Review of Insulation Defect Detection Methods for a Gas-Insulated Switchgear
EnergiesGas-insulated switchgear (GIS) is a critical component of modern power systems. During operation, internal defects increase the probability of partial discharge and flashover within the insulation system, thereby constituting a major cause of equipment ...
Tengfei Li +5 more
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Features of monitoring extra large partial discharge in high voltage insulators
Известия высших учебных заведений: Проблемы энергетики, 2022 THE PURPOSE of the described study is to study the effect of partial discharges on the physical state of previously detected defects in high-voltage insulators.
D. A. Ivanov
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Defect mediated manipulation of nanoclusters on an insulator [PDF]
Scientific Reports, 2013 With modern scanning probe microscopes, it is possible to manipulate surface structures even at the atomic level. However, manipulation of nanoscale objects such as clusters is often more relevant and also more challenging due to the complicated interactions between the surface, cluster and apparatus.
Cabailh, Gregory +4 more
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Defects in Insulating Materials [PDF]
physica status solidi c, 2013 AbstractThis issue of physica status solidi (c) is dedicated to papers submitted during the 2012 International Conference on Defects in Insulating Materials (ICDIM 2012), which was held in Santa Fe, NM USA on June 24–29, 2012. ICDIM 2012 is the 18th edition of a series that began in 1956 at Argonne, USA, with the meeting “Color Centers in Alkali ...
Chris Stanek +3 more
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Entropy, 2022 Partial discharge (PD) is the main feature that effectively reflects the internal insulation defects of gas-insulated switchgear (GIS). It is of great significance to diagnose the types of insulation faults by recognizing PD to ensure the normal ...
Qianzhen Jing +4 more
doaj +1 more source
Localization of HV Insulation Defects Using a System of Associated Capacitive Sensors
Energies, 2023 The issue of detecting and locating defects generating partial discharges (PDs) is very important for the proper functioning of power grids. Despite the existence of many localization methods, both very large and relatively small objects are still a ...
Krzysztof Walczak
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Detection Sensitivity of Input Impedance to Local Defects in Long Cables
IEEE Access, 2020 Broadband impedance spectroscopy (BIS) has become a new method for detecting cable insulation defects, but the sensitivity of this method to local defects in cables has not been fully studied.
Wenxia Pan +5 more
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Multiple detections of insulation defects partial discharge in gas-insulated equipment
Frontiers in Energy Research, 2022 Gas-insulated equipment is an important part of the power system owing to its advantages of small footprint, large transmission capacity, and high reliability.
Fanjun Kong +7 more
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Modelling of Electrical Discharge Processes for Optimization of Corona-Protection System of High Voltage Rotating Machines Insulation [PDF]
Problems of the Regional Energetics, 2020 The aim of this work is to study the influence of technological defects in stator windings electri-cal insulation system on the inception of partial discharges in the stator slot of air-cooled electric rotating machines.
Andreev A.M. +5 more
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Nonlinear Dielectric Properties of the Stator and Transformer Insulation Systems
, 2022 Composite insulation systems usually exhibit nonlinear phenomena, such as voltage-dependent dielectric response and high-order current harmonics. In this article, a high-voltage system capable of performing both dielectric frequency response (DFR) and ...
Cheng, Jialu, +2 more
core +1 more source