Title:	Partial discharge diagnostic of medium voltage switch-gears under operating conditions using a special PD-probe
Authors:	Haller, Rainer
Citation:	Electroscope. 2007, č. 2.
Issue Date:	2007
Publisher:	Západočeská univerzita v Plzni, Fakulta elektrotechnická
Document type:	článek konferenční příspěvek article conferenceObject
URI:	http://147.228.94.30/images/PDF/Rocnik2007/spec_cislo_diagnostika07/r0c2c5.pdf http://hdl.handle.net/11025/420
ISSN:	1831-4564
Keywords:	částečné náboje;elektrotechnická diagnostika;vypínače;měření pupilární distance
Keywords in different language:	partial discharges;electrical diagnostics;switches;pupillary distance measurement
Abstract in different language:	As an essential tool for condition based maintenance of electrical equipment, PD measurements under real operating conditions are becoming ever more important. The main problems associated with these diagnostic on-site measurements are the measuring sensitivity and reproducibility of measured values with respect to calibration conditions. This paper discusses the problems of on-site PD measurement in medium voltage switchgear using a special PD-probe. It will be shown, that the maximum PD-sensitivity can be reached by using a capacitive sensor in conjunction with the PD-probe and by connecting of elements with resonance characteristics. For measurements made under operating conditions on real switchgear, a measurement sensitivity of < 20 pC could be reached.
Rights:	Copyright © 2007-2010 Electroscope. All Rights Reserved.
Appears in Collections:	Číslo 2 - výběr z konference Diagnostika´07 (2007) Články / Articles (KEE) Číslo 2 - výběr z konference Diagnostika´07 (2007)

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