Results 11 to 20 of about 75,526 (309)

Partial Discharges Monitoring for Electric Machines Diagnosis: A Review

Energies, 2022
Online monitoring of Partial Discharges (PDs) in rotating electrical machines is an useful tool for machine prognosis, as it presents reduced costs compared to intrusive inspections and is associated with relevant problems.
Jonathan dos Santos Cruz, F. Fruett, R. Lopes, Fabio Luiz Takaki, C. A. Tambascia, E. R. D. Lima, Mateus Giesbrecht   +6 more
semanticscholar   +1 more source

Research of partial discharge characteristics features in bushings [PDF]

Омский научный вестник, 2021
The paper is devoted to partial discharge measurement and analysis in switchgear bushings. PD bushing structure analysis is described to assess possible defect sources in bushings.
D. A. Polyakov, N. A. Tereshchenko, K. I. Nikitin   +2 more
doaj   +1 more source

Investigation characteristics of partial discharges in artificial defects of power transmission lines [PDF]

Омский научный вестник, 2020
The article describes the study of the characteristics of partial discharges (PD) in various types of artificial defects in cable lines. A total of 13 types of insulation defects are considered.
D. A. Polyakov, N. A. Tereschenko, I. V. Komarov, K. I. Nikitin, U. V. Polyakova   +4 more
doaj   +1 more source

Partial Discharges Classification Methods in XLPE Cable: A Review

IEEE Access, 2021
Partial discharge (PD) signal classification analysis on cross-linked polyethylene (XLPE) cables is complex, requiring a comprehensive understanding of the characteristics of PD patterns.
N. Rosle, N. Muhamad, M. Rohani, M. Jamil   +3 more
semanticscholar   +1 more source

Detection and Analysis of Partial Discharges in Oil-Immersed Power Transformers Using Low-Cost Acoustic Sensors

Applied Sciences, 2022
Partial Discharge (PD) is one of the symptoms of an electrical insulation problem, and its permanence can lead to the complete deterioration of the electrical insulation in high-voltage equipment such as power transformers.
Hamidreza Besharatifard, S. Hasanzadeh, E. Heydarian‐Forushani, Hassan Haes Alhelou, P. Siano   +4 more
semanticscholar   +1 more source

Detection, Classification and Location of Sources of Partial Discharges Using the Radiometric Method: Trends, Challenges and Open Issues

IEEE Access, 2021
In this article, it is provided a comprehensive survey on the most relevant research in the area of detection, classification and location of partial discharge (PD) sources using the radiometric or ultra high frequency (UHF) method, focusing mainly on ...
G. V. Xavier, H. Silva, E. G. da Costa, A. Serres, N. Carvalho, Arnaldo S. R. Oliveira   +5 more
semanticscholar   +1 more source

Analysis of partial discharges in supporting insulators [PDF]

Омский научный вестник, 2020
The diagnostics of overhead power lines is an important issue in the modern electric power industry. Sometimes supporting insulators are destroyed by external factors.
D. A. Polyakov, K. I. Nikitin, N. A. Tereshchenko, A. S. Novoselov, Ya. P. Bilevich   +4 more
doaj   +1 more source

Evaluation of Erosion Discharge Characteristics in Inclined Plane Tracking and Erosion Tests on Silicone Rubber under AC and DC Voltages

Energies, 2021
This paper investigates partial discharge (PD) characteristics that lead to the erosion of silicone rubber (SR) polymer under AC stress and DC stress of both polarities.
Valeria Pevtsov, Nathan D. Jacob, Behzad Kordi   +2 more
doaj   +1 more source

Automatic PRPD Image Recognition of Multiple Simultaneous Partial Discharge Sources in On-Line Hydro-Generator Stator Bars

Energies, 2022
In this study, a methodology for automatic recognition of multiple simultaneous types of partial discharges (PDs) in hydro-generator stator windings was proposed.
Ramon C. F. Araújo, Rodrigo M. S. de Oliveira, Fabrício J. B. Barros   +2 more
doaj   +1 more source

Partial discharges in power transformers [PDF]

E3S Web of Conferences
Tansformers are among the most responsible and expensive elements of the power system, therefore monitoring the technical condition of the transformer is an important and urgent task.
Lopatchenko Gleb, Groshev Alexander, Lukonin Alexey, Kuimov Denis, Yurov Alexander   +4 more
doaj   +1 more source