Results 21 to 30 of about 30,911 (308)

Partial discharges characteristics study in XLPE cable insulation with multiple defects [PDF]

Омский научный вестник, 2021
The paper simulates the electric field intensity picture in the cable with one and several defects. Modeling has shown that the presence of several closely spaced defects does not lead to an increase in the electric field intensity in comparison with
I. V. Komarov, D. A. Polyakov, K. I. Nikitin   +2 more
doaj   +1 more source

Method of fault‐type recognition based on the dissolved gas analysis using a set of diagnostic criteria

IET Generation, Transmission & Distribution, 2023
This paper proposes a method for recognising the fault type using a set of diagnostic criteria. Existing approaches to the interpretation of dissolved gas analysis (DGA) results usually rely on single diagnostic criteria.
Oleg Shutenko, Oleksii Kulyk
doaj   +1 more source

Study on the Effect of Void Geometry and Location on Electric Field Distribution and Partial Discharges in HVDC Cables [PDF]

E3S Web of Conferences, 2023
Nowadays HVDC transmission systems are preferred over HVAC systems because of their less power loss and high reliability. In the HVDC cable transmission system, there is a problem of Partial Discharges (PD) occurring due to cavities of the dielectrics in
Subramaniam Sundaramahalingam, Thiruvelmurugan Janani, Anbuselvan Shanmathi   +2 more
doaj   +1 more source

Modelling of Electrical Discharge Processes for Optimization of Corona-Protection System of High Voltage Rotating Machines Insulation [PDF]

Problems of the Regional Energetics, 2020
The aim of this work is to study the influence of technological defects in stator windings electri-cal insulation system on the inception of partial discharges in the stator slot of air-cooled electric rotating machines.
Andreev A.M., Andreev I.A., Belko V.O., Reznik A.S., Smirnov A.N., Stepanov A.A.   +5 more
doaj   +1 more source

Causal hierarchy within the thalamo-cortical network in spike and wave discharges [PDF]

, 2009
Background: Generalised spike wave (GSW) discharges are the electroencephalographic (EEG) hallmark of absence seizures, clinically characterised by a transitory interruption of ongoing activities and impaired consciousness, occurring during states of ...
Lemieux, L., Vaudano, Anna E., Friston, KJ, Rodionov Roman, Carmichael, D., Thornton, R., Thornton, Rachel, Lemieux, Louis, VAUDANO, Anna Elisabetta, Maxime Guye, Vaudano, A., Vaudanao, A. E., Anna E Vaudano, Carmichael, David W., Hamandi, K., Carmichael David W., Kiebel, SJ, Carmichael, DW, Vaudano Anna E., Vaudano, AE, Guye, M, Hamandi, K, Thornton Rachel, Guye Maxime, Duncan, JS, de la Prida, Liset Menendez, Friston Karl J., Louis Lemieux, Stefan J Kiebel, Rachel Thornton, Rodionov, R, David W Carmichael, Khalid Hamandi, Friston, Karl J., Thornton, R, Duncan, John, Guye, M., Kiebel, Stefan J., Duncan, John S., Rodionov, Roman, Duncan, J., Duncan John S., Lemieux, L, Roman Rodionov, Hamandi Khalid, Kiebel, S., Hamandi, Khalid, Lemieux Louis, Friston, K., Rodionov, R., Laufs, H, Laufs, Helmut, Carmichael, D. W., Helmut Laufs, Laufs, H., John S Duncan, Laufs Helmut, Guye, Maxime, Karl J Friston, Kiebel Stefan J.   +59 more
core   +1 more source

Time Reversal to Localise Multiple Partial Discharges in Power Cables [PDF]

, 2023
The paper studies the suitability of the electromagnetic time reversal (EMTR) technique to localise multiple sources of partial discharges (PD) in power cables.
Ragusa, A., Rachidi, F., Duffy, A., Sasse, H., Rubinstein, M.   +4 more
core  

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 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, Hane, Yoshinari, Isaka, Susumu, Horii, Kenji   +3 more
openaire   +2 more sources

Interpretation of partial discharge activity in the presence of harmonics [PDF]

, 2010
Recent work has identified that circumstances of equipment operation can radically change condition monitoring data. This contribution investigates the significance of considering circumstance monitoring on the diagnostic interpretation of such condition
Rudd, S. E., Catterson, V.M., Bahadoorsingh, S., S. M. Rowland, S. D. J. McArthur, Catterson, V. M., S. Bahadoorsingh, Rudd, S.E., McArthur, S.D.J., S. E. Rudd, Rowland, S.M., Rowland, S. M.; id_orcid, V. M. Catterson, McArthur, S. D J   +13 more
core   +1 more source

Oil‐paper insulation partial discharge ultrasonic multifrequency sensing array based on fibre‐optic Fabry–Perot sensor

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, Jiali Lei, Weigen Chen, Tianhe Yang, Yuxuan Song, Kejie Wu, Fan Liu   +6 more
doaj   +1 more source