NDLI: Application of pulse width analysis to partial discharge detection

Content Provider	IEEE Xplore Digital Library
Author	Campbell, S.R. Stone, G.C. Sedding, H.G.
Copyright Year	1992
Description	Author affiliation: IRIS Power Eng., Mississauga., Ont., Canada (Campbell, S.R.; Stone, G.C.)
Abstract	An online partial discharge test for large steam turbine generators has been developed whereby partial discharges and noise are distinguished on the basis of pulse width. The pulse signals are detected by stator slot couplers (SSCs) which are permanently installed within the generator. Experiments have shown that partial discharge pulses, as detected by an SSC, have a pulse duration of only a few nanoseconds, whereas all types of electrical noise have a pulse width of greater than 20 ns. An instrument called the TGA, which performs a pulse width analysis with a resolution of 2 ns, has been constructed. This instrument permits the rejection of noise on a pulse by a pulse basis and provides pulse height and pulse phase analysis of the partial discharge pulses. The SSC/TGA test allows nonspecialized personnel to perform a partial discharge test on generators in nuclear and fossil stations, without requiring a generator outage.<>
Starting Page	345
Ending Page	348
File Size	486946
Page Count	4
File Format	PDF
ISBN	078030649X
ISSN	1089084X
DOI	10.1109/ELINSL.1992.246979
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-06-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space vector pulse width modulation Partial discharges Testing Pulse generation Instruments Nuclear power generation Turbines Noise generators Signal detection Stators
Content Type	Text
Resource Type	Article

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