NDLI: Plasma density decay of vacuum discharges after current zero

Content Provider	IEEE Xplore Digital Library
Author	Duning, G. Lindmayer, M.
Copyright Year	1998
Description	Author affiliation: Inst. fur Hochspannungstechnik und Elektrische Energieanlagen, Tech. Univ. Braunschweig, Germany (Duning, G.)
Abstract	The knowledge of the physical processes around current zero and their modeling is important for the development of vacuum interrupters towards higher switching capacity and higher voltages. One essential feature is the recovery of the arc gap after current zero from the well-conducting state of the high-current plasma to the isolating state of the cold gap. Like in other switching media, there is still plasma present in the switching gap at current zero, which needs time to recombine and disappear. The presence of post-arc charge is associated with post-arc current under the influence of the transient recovery voltage, which in turn interacts with the surrounding network. As the charges carried by the post-arc current leave the gap, the post-arc current also influences the plasma decay. A simulation of this combined behavior needs an adequate mathematical post-arc model as well as the knowledge of data of the charge-carrier densities and their decay. It is the aim of this work to determine the necessary data, based on a simplified one-dimensional post-arc model, and to compare model calculations with experiments.
Starting Page	447
Ending Page	454
File Size	757656
Page Count	8
File Format	PDF
ISBN	0780339533
ISSN	10932941
DOI	10.1109/DEIV.1998.738630
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-08-17
Publisher Place	Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Plasma density Plasma sheaths Voltage Space charge Cathodes Anodes Vacuum arcs Circuits Current density Charge carriers
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Software

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