NDLI: Dielectric investigations on micro discharge currents and conditioning behaviour of vacuum gaps

Content Provider	IEEE Xplore Digital Library
Author	Budde, M. Kurrat, M.
Copyright Year	2006
Description	Author affiliation: Inst. for High-Voltage Technol. & Electr. Power Syst., Tech. Univ. of Braunschweig (Budde, M.; Kurrat, M.)
Abstract	The dielectric "management" in vacuum circuit breakers influences more and more design, development and production strategies. In this regard lightning impulse voltage is the most decisive parameter. Measurements and evaluation of dielectric parameters in open position are thus a meaningful task for vacuum circuit-breaker design and development. Usually contact systems are conditioned to get a reliable electric strength. Many conditioning methods are known. In experimental investigations with lightning impulse voltage, as described in this paper, the impulse voltage test itself can be used to condition the contact systems. For this purpose, plate-plate electrodes from different materials (stainless steel, brass, copper an copper-chromium) are stressed and conditioned with lightning impulse voltage (1.2/50mus). The decreasing micro discharge current level while conditioning routine makes it possible to set a limit for the current value. Conditioning is finished by falling below this limit. The breakdown strength is influenced by the conditioning procedure and micro discharge currents as well
Starting Page	67
Ending Page	70
File Size	3584186
Page Count	4
File Format	PDF
ISBN	1424401917
ISSN	10932941
DOI	10.1109/DEIV.2006.357230
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-25
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage Lightning Circuit breakers Production Dielectric measurements Position measurement Circuit testing Impulse testing System testing Electrodes
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Software

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