NDLI: Propagation of fast PD signals within stator bars performance and limitations of a high frequency monitoring system

Content Provider	IEEE Xplore Digital Library
Author	Lesaint, O. Lebey, T. Dinculescu, S. Debruyne, H. Petit, A.
Copyright Year	2003
Description	Author affiliation: Lab. d'Electrostatique et de Materiaux dielectriques, Grenoble, France (Lesaint, O.)
Abstract	The propagation of PD current pulses along stator bars is studied by injecting fast nanosecond pulses, either in single bar specimens, or in a complete machine. PD pulse propagation along bars is rather different from a pure transmission line. This is partly due to the Roebel structure of bars, constituted of isolated conductors. Attenuation of very high frequencies, reflections and oscillations induce large modifications of amplitudes and shapes of signals. These investigations also point out the performance and limitations of a PD detection system based on the analysis of very high frequency signals. It offers an efficient way to reject noise, but on the other hand it provides only a local diagnostic of insulation (at a distance less than about 1m from sensors).
Sponsorship	IEEE Dielectrics & Electrical Insulation Soc. IEE Japan
Starting Page	1112
Ending Page	1115
File Size	301293
Page Count	4
File Format	PDF
ISBN	0780377257
ISSN	10817735
DOI	10.1109/ICPADM.2003.1218618
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-06-01
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stator bars Frequency Monitoring Transmission lines Conductors Attenuation Acoustic reflection Shape Signal analysis Performance analysis
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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