About: Observing partial discharges along a stator bar by the corona camera

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In every electrical machine operating above 6 kV the partial discharges may occur on the surface of the stator bars or coils either between stator core or in the end-winding near the end of the stator core. The PD activity at the slot exit of the stator causes surface discharges which lead to a damage of the insulation and potential breakdown ending in shutdown of the machine. This can be prevented by applying stress grading materials such as semiconductive tapes or varnish. These materials with SiC particles used for this protection have nonlinear voltage - current characteristic which lowers the gradient of increasing voltage along the sruface. By the help of the corona camera this article shows the difference of partial discharge activity on the surface of the stator coil if the stress grading materials are applied or not. The article also briefly describes the principle of the corona camera. In every electrical machine operating above 6 kV the partial discharges may occur on the surface of the stator bars or coils either between stator core or in the end-winding near the end of the stator core. The PD activity at the slot exit of the stator causes surface discharges which lead to a damage of the insulation and potential breakdown ending in shutdown of the machine. This can be prevented by applying stress grading materials such as semiconductive tapes or varnish. These materials with SiC particles used for this protection have nonlinear voltage - current characteristic which lowers the gradient of increasing voltage along the sruface. By the help of the corona camera this article shows the difference of partial discharge activity on the surface of the stator coil if the stress grading materials are applied or not. The article also briefly describes the principle of the corona camera. (en)
Title	Observing partial discharges along a stator bar by the corona camera Observing partial discharges along a stator bar by the corona camera (en)
skos:prefLabel	Observing partial discharges along a stator bar by the corona camera Observing partial discharges along a stator bar by the corona camera (en)
skos:notation	RIV/49777513:23220/13:43919216!RIV15-MSM-23220___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Kučerová, Eva Krpal, Ondřej Gonová, Ilona
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Západočeská univerzita v Plzni / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	93019
http://linked.open...ai/riv/idVysledku	RIV/49777513:23220/13:43919216
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	camera; corona; the; bar; stator; along; discharges; Partial (en)
http://linked.open.../riv/klicoveSlovo	stator along bar corona discharges camera the Partial
http://linked.open...ontrolniKodProRIV	[41D976A95B23]
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Kučerová, Eva Krpal, Ondřej Gonová, Ilona
http://localhost/t...ganizacniJednotka	23220

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