NDLI: Current-interruption testing of vacuum switching devices

Content Provider	IEEE Xplore Digital Library
Author	Smeets, R.P.P. Lathouwers, A.G.A.
Copyright Year	1994
Abstract	In the international IEC standards for medium and HV switching devices no distinction in test requirements is made between switching devices with different arc-quenching media, like SF/sub 6/, oil and vacuum. This had led to the situation that due to the different technology of arc interruption applied, various aspects of the prescribed test-procedures have a different weight in terms of severity for various types of breakers. Additional test-requirements and interpretations that are specific to vacuum switching devices have been formulated commonly by the joint major test laboratories. In this contribution, the background and practical application of several procedures, now generally adopted by certifying test-laboratories, regarding the peculiarities of vacuum switching devices are elucidated. Because the vacuum switching device has an excellent capability to interrupt current of high frequency, the main part of this contribution will be related to the consequences for test procedures of this aspect that is not encountered in SF/sub 6/ or oil breakers. In particular, the judgment of non-sustained disruptive discharges, multiple re-ignition and virtual current chopping in test-circuits is addressed. Results of a new high-resolution high-frequency current-zero measuring system are presented. This system is able to give insight into the high-frequency arc phenomena in the immediate vicinity of are interruption, and is designed to get more specific information on arc behavior during standard high-power tests.
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	394
Ending Page	399
Page Count	6
File Size	509829
File Format	PDF
ISSN	10709878
Volume Number	6
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	IEC standards Vacuum technology Petroleum Switching circuits Circuit testing Vacuum arcs System testing Vacuum systems Medium voltage Circuit breakers
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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