Results 31 to 40 of about 1,502,407 (287)
Application of Image Sensors to Detect and Locate Electrical Discharges: A Review
Sensors, 2022 Today, there are many attempts to introduce the Internet of Things (IoT) in high-voltage systems, where partial discharges are a focus of concern since they degrade the insulation.
Jordi-Roger Riba
doaj +1 more source
Partial discharges in power transformers [PDF]
E3S Web of ConferencesTansformers 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 +4 more
doaj +1 more source
A frequency-based RF partial discharge detector for low-power wireless sensing [PDF]
, 2010 Partial discharge (PD) monitoring has been the subject of significant research in recent years, which has given rise to a range of well-established PD detection and measurement techniques, such as acoustic and RF, on which condition monitoring systems ...
Baker, P.C. +2 more
core +4 more sources
High Voltage, 2022 In order to improve the sensitivity and accuracy of oil‐paper insulation partial discharge detection by the fibre‐optic Fabry–Perot (FP) ultrasonic sensor, this work studied the ultrasonic signal’s frequency characteristics of typical oil‐paper ...
Zhixian Zhang +6 more
doaj +1 more source
Bactericidal effect of corona discharges in atmospheric air [PDF]
, 2012 The present paper explores the possibilities of using impulsive and steady-state corona discharges for bio-decontamination operations. A high tension tubular corona electrode was stressed with positive or negative dc voltage with magnitude up to 26 kV ...
Given, M +6 more
core +4 more sources
Measurement of Partial Discharge Activities within Two Artificial Spherical Voids in an Epoxy Resin [PDF]
, 2011 Measurement of partial discharge activities within insulation systems has been extensively performed. It has been widely used in the performance assessment of an insulation system and for insulation diagnostics.
Illias, H A, Lewin, P L, Chen, G
core +2 more sources
Analysis of Partial Discharge Activity for Evaluation of the State of High Power Electric Generators Stator Windings [PDF]
Problems of the Regional Energetics, 2016 The paper shows the importance of trending of partial discharge activity in assessing the insulation condition. It is presented the principle of the measurement method and the quantities that characterize partial discharges and also the criteria utilized
Dumitrescu Sorin
doaj
Partial Discharge Behaviour within Two Spherical Cavities in a Dielectric Material [PDF]
, 2011 In high voltage insulation systems, a typical defect that exists is a void cavity. It is known that voids are a common source of partial discharge (PD) activity within an insulation system.
Illias, H A, Lewin, P L, Chen, G
core +2 more sources
Partial Discharge Modelling Based on a Cylindrical Model in Solid Dielectrics
, 2008 Partial discharges (PDs) are harmful to electrical insulation as they may degrade the material. Consequently, a lot of efforts have been made to develop suitable systems for PD measurements and monitoring.
Baharudin, Fauzan, Chen, George
core +2 more sources
Partial discharge in liquid nitrogen
Electrical Engineering in Japan, 1976 Results are presented of experiments on partial discharge in liquid nitrogen, including insulation breakdown characteristics of liquid nitrogen, partial discharge characteristics of composite insulation systems, lifetime of polymer films, impulse breakdown of polymer films in liquid nitrogen, etc.
Kosaki, Masamitsu +3 more
openaire +2 more sources