NDLI: Effects of dielectric liquids in electrical alternating fields [high voltage transmission lines]

Content Provider	IEEE Xplore Digital Library
Author	Muhr, M. Pack, S. Schwarz, R. Koerbler, B.
Copyright Year	2004
Description	Author affiliation: Graz Univ. of Technol., Austria (Muhr, M.; Pack, S.; Schwarz, R.; Koerbler, B.)
Abstract	Due to the high electric fields at the surface of conductors of high voltage transmission lines, effects appear, which are called corona discharges. The electrical and acoustic emissions of dry and moistened high voltage transmission line conductors have been examined and evaluated. For this purpose several systems for sound and partial discharge measurement were used in a parallel arrangement. Contrary to dry kept overhead line conductors, the conductors moistened with water showed a changed appearance in acoustic and partial discharge measurement, which suggests mechanical movements of water drops in the changing electrical field producing acoustic sound. This effect is well-known, but until now an exact analysis of the arising acoustic emissions was neglected. This paper details the spectral analysis method used to evaluate these corona discharge noises and also describes the partial discharge measuring system.
Starting Page	110
Ending Page	113
File Size	356997
Page Count	4
File Format	PDF
ISBN	0780385845
DOI	10.1109/CEIDP.2004.1364201
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-10-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dielectric liquids Voltage Transmission lines Conductors Acoustic emission Partial discharge measurement Corona Surface discharges Spectral analysis Acoustic noise
Content Type	Text
Resource Type	Article

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