Results 11 to 20 of about 62,374 (306)

Identification of XLPE cable insulation defects based on deep learning

open access: yesGlobal 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
doaj   +3 more sources

Optimum feature selection for classification of PD signals produced by multiple insulation defects in electric motors [PDF]

open access: yesScientific Reports
Partial 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
doaj   +2 more sources

Multiple detections of insulation defects partial discharge in gas-insulated equipment

open access: yesFrontiers 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
doaj   +2 more sources

Deep Learning-Based Intelligent Detection Device for Insulation Pull Rod Defects

open access: yesEnergies
This paper proposes a deep learning-based intelligent detection device for insulation pull rod defects, addressing the issues of low detection accuracy, poor timeliness of intelligent analysis, and the difficulty in preserving detection results. Firstly,
Hua Yu   +7 more
doaj   +3 more sources

Analysis of the deterioration process of DC XLPE cable with protrusion defect based on the development of partial discharge. [PDF]

open access: yesPLoS ONE
High-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
doaj   +2 more sources

Features of monitoring extra large partial discharge in high voltage insulators

open access: yesИзвестия 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
doaj   +1 more source

Defects in Insulating Materials [PDF]

open access: yesphysica 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
openaire   +1 more source

A Novel Method for Pattern Recognition of GIS Partial Discharge via Multi-Information Ensemble Learning

open access: yesEntropy, 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

Identifying Prognostic Indicators for Electrical Treeing in Solid Insulation through PD Analysis [PDF]

open access: yes, 2013
This paper presents early results from an experimental study of electrical treeing on commercially available pre-formed silicone samples. A needle-plane test arrangement was set up using hypodermic needles.
Binti Ab Aziz, Nur Hakimah   +2 more
core   +5 more sources

Insulator Defect Detection Technology Research [PDF]

open access: yesProceedings 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
openaire   +1 more source

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