Results 21 to 30 of about 1,502,407 (287)

Effect of partial discharges on the operating condition of high-voltage insulators [PDF]

E3S Web of Conferences, 2019
The features of the dielectric rod defects and the rod-electrod defects of polymer insulators were investigated by using the developed complex method of contactless remote diagnostics of high-voltage insulators health, which includes the initial ...
Golenishchev-Kutuzov A. V., Golenishchev-Kutuzov V. A., Ivanov D. A., Mardanov G. D., Semennikov A. V., Ahmetvaleeva L. V.   +5 more
doaj   +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

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

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

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

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

Investigation of propagation of partial discharges in power transformers and techniques for locating the discharge [PDF]

, 2005
The location of partial discharges in a power transformer can be determined based on the characteristics of the transfer function from the discharge source to the measuring terminal.
Crossley, P.A., Crossley, P. A., Hettiwatte, S.N., Wang, Z.D., Hettiwatte, S. N., Wang, Zhong Dong   +5 more
core   +1 more source

Antenna Parametrization for the Detection of Partial Discharges [PDF]

IEEE Transactions on Instrumentation and Measurement, 2013
Partial discharge (PD) detection is a widely extended technique for electrical insulation diagnosis. Ultrahigh-frequency detection techniques appear as a feasible alternative to traditional methods owing to their inherent advantages such as the capability to detect PDs online and to locate the piece of equipment with insulation problems in substations ...
Guillermo Robles, Matilde Sánchez Fernández, Ricardo Albarracín Sánchez, Mónica V. Rojas-Moreno, Eva Rajo-Iglesias, Juan Manuel Martínez-Tarifa   +5 more
openaire   +2 more sources

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