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Optimum feature selection for classification of PD signals produced by multiple insulation defects in electric motors [PDF]
Scientific ReportsPartial discharges (PD) are initiated in electrical equipment during various points of the equipment’s lifecycle. The intensity of PD defects rises continuously with time, which can lead to insulation degradation and reduced operational life of the ...
Waqar Hassan +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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Analysis of the deterioration process of DC XLPE cable with protrusion defect based on the development of partial discharge. [PDF]
PLoS ONEHigh-voltage direct current (HVDC) cables are essential for long-distance power transmission, particularly in renewable energy applications. Cross-linked polyethylene (XLPE) insulation is commonly used in these cables, but protrusion defects that occur ...
Yunjie Zhou +5 more
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Identification of XLPE cable insulation defects based on deep learning
Global Energy Interconnection, 2023 The insulation aging of cross-linked polyethylene (XLPE) cables is the main reason for the reduction in cable life. There is currently a lack of rapid and effective methods for detecting cable insulation defects in power-related sectors.
Tao Zhou +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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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
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Insulator Defect Detection Technology Research [PDF]
Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering, 2015 Nonlinear composite insulator voltage distribution is big, the umbrella skirt interval is small, this brought difficulty to defect inspection of composite insulator. Article is studied based on electric power within the composite insulator type defect inspection technology, the principle of uv pulse method, ultrasonic method and electric field method ...
Yupeng Wang +4 more
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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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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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