NDLI: Voltage harmonic content of long artificially generated electrical arc in out-door experiment at 500 kV towers

Content Provider	IEEE Xplore Digital Library
Author	Tavares, M. Talaisys, J. Camara, A.
Copyright Year	1994
Abstract	This study involves the application of Short Time Discrete Fourier Transform in order to obtain the harmonic content of voltage between the terminals of 647 artificially generated long electrical arcs. Non-confined tests were conducted on three 500 kV towers specially built inside a laboratory facility, in order to represent as close as possible actual transmission line conditions. The 1-s duration arcs were artificially generated along the 4 m insulator string of a 500 kV tower by imposing a sustained 60 Hz current. The arc voltage harmonic content can be used to identify the moment at which the arc is stabilized in the air and only after this instant measured data can be used to derive mathematical arc model. A statistical analysis of the results, considering only the period for which the arc is stabilized, enabled the establishment of the harmonic signature of the electric arcs for a large arc current amplitude range. From the results it can be stated that an accurate arc model should properly reproduce the presented harmonic content for any arc current level.
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
Starting Page	1005
Ending Page	1014
Page Count	10
File Size	2726606
File Format	PDF
ISSN	10709878
Volume Number	21
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Harmonic analysis Voltage measurement Poles and towers Insulators Power transmission lines Transmission line measurements Current measurement non-permanent faults Secondary arc harmonic analysis single-phase autoreclosing
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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