Results 21 to 30 of about 3,438,442 (401)

Research of GIS partial discharge type evaluation based on convolutional neural network

open access: yesAIP Advances, 2020
This paper presents a GIS (Gas Insulated Switchgear) partial discharge type evaluation based on the convolutional neural network. It is significant to study GIS partial discharge and effectively classify the types of GIS partial discharge.
Liuhuo Wang, Kang Hou, Lingqi Tan
doaj   +1 more source

Partial Discharges in Electrical Machines for the More Electrical Aircraft. Part III: Preventing Partial Discharges [PDF]

open access: yesIEEE Access, 2021
In this paper, the results obtained from lab tests on twisted pairs subjected to different voltage waveforms and atmospheric conditions are used to propose how to modify the IEC Std. 60034-18-41. The goal is to make the standard suitable for the More Electrical Aircraft (MEA).
Alberto Rumi   +5 more
openaire   +5 more sources

Classification of partial discharges

open access: yesIEEE Transactions on Electrical Insulation, 1993
For a long time, classification of partial discharges was performed by eye, by studying discharge patterns at the ellipse of an oscilloscope screen. The introduction of digital processing techniques allowed automation of the recognition procedure. These procedures are reported and applied to a number of actual HV constructions which suffer from partial
Kreuger, F.H. (author)   +2 more
openaire   +4 more sources

Data management of on-line partial discharge monitoring using wireless sensor nodes integrated with a multi-agent system [PDF]

open access: yes, 2007
On-line partial discharge monitoring has been the subject of significant research in previous years but little work has been carried out with regard to the management of on-site data.
M. Judd   +6 more
core   +2 more sources

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

open access: yes, 1998
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.
Diehl, M.   +3 more
core   +5 more sources

A Partial Discharge Study of Medium-Voltage Motor Winding Insulation Under Two-Level Voltage Pulses With High Dv/Dt

open access: yesIEEE Open Journal of Power Electronics, 2021
Medium-voltage (e.g., 10 kV rated) silicon carbide (SiC) devices have great potentials in medium-voltage variable speed drives. But their high switching dv/dt can increase the voltage stress on motor windings and cause partial discharges.
Boxue Hu   +8 more
semanticscholar   +1 more source

A frequency-based RF partial discharge detector for low-power wireless sensing [PDF]

open access: yes, 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   +1 more source

Research and application of intermittent partial discharge characteristics and easy-warning system for electric equipment

open access: yesEnergy Reports, 2022
Intermittent partial discharge has become an essential threat to the safety and stability of high voltage electrical equipment. In order to reduce the sudden insulation breakdown failure due to the intermittent and latent partial discharge of the ...
Bo Niu, Dr   +5 more
doaj  

A GIS Partial Discharge Defect Identification Method Based on YOLOv5

open access: yesApplied Sciences, 2022
The correct identification of partial discharge types is of great significance to the stable operation of GIS. In order to improve the recognition accuracy and result of partial discharge, and to meet the requirements of real-time monitoring of GIS ...
Yao Lu   +5 more
doaj   +1 more source

Towards the text compression based feature extraction in high impedance fault detection [PDF]

open access: yes, 2019
High impedance faults of medium voltage overhead lines with covered conductors can be identified by the presence of partial discharges. Despite it is a subject of research for more than 60 years, online partial discharges detection is always a challenge,
Fulneček, Jan   +4 more
core   +1 more source

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