NDLI: Application of pulsed x-ray induced partial discharge measurements

Content Provider	IEEE Xplore Digital Library
Author	Adili, S. Franck, C.M.
Copyright Year	1994
Abstract	The use of short x-ray pulses (duration 50 ns) has shown to eliminate the statistical time lag by providing start electrons for the partial discharge (PD) development in a void, making it possible to detect very small voids at low electric field levels. A single x-ray pulse of a given dose produces a certain number of electron-ion pairs in a given gas volume, depending on the gas parameters. A minimum x-ray dose is thus needed to provide at least one start electron in the void for successful pulsed x-ray induced partial discharge (PXIPD) inception. In the application of x-rays to a conventional PD measurement, it is necessary to consider that photons emitted by the x-ray source are attenuated by every barrier material which is located between the source and the void of the insulator. This paper presents guidelines on how to design a successful PXIPD measurement with any given pulsed x-ray source. To do so, the theoretical background of PDs and the attenuation phenomena of x-ray are shown. The minimum x-ray dose for PD inception in artificially produced spherical voids is determined experimentally and evaluated theoretically.
Sponsorship	National Natural Science Foundation of China (NSFC) Region Centre Ville de Tours Conseil General D'Indre et Loire ABB IEEE Sandia National Laboratories TOSHIBA
File Size	1385191
File Format	PDF
ISSN	10709878
Volume Number	19
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges Materials Attenuation Pulse measurements Partial discharge measurement Voltage measurement Attenuation measurement x-ray measurements partial discharges insulation testing attenuation measurement xrayapplications
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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