NDLI: Experimental Study of an Explosive Cumulative Current Closing Switch for Powerful Capacitor Facilities

Content Provider	IEEE Xplore Digital Library
Author	Duday, P.V. Ivanov, V.A. Krayev, A.I. Mikhailov, O.D. Skobelev, A.N.
Copyright Year	2006
Description	Author affiliation: All-Russia Scientific Research Institute of Experimental Physics, Sarov, Nizhny Novgorod Region, Russia (Duday, P.V.; Ivanov, V.A.; Krayev, A.I.; Mikhailov, O.D.; Skobelev, A.N.)
Abstract	In some experiments conducted on the powerful capacitor facilities it is necessary to keep the electromagnetic energy in the load as long as possible, i.e. to support the current in the load during a longer period of time. This can be realized by installing a fast-operating closing switch (in literature called "crowbar") at the capacitors output or at the load input. Herewith, the closing switch should have a low self-inductance and an active resistance in the process of operation as compared with a discharge circuit of a pulsed source. The paper describes the design and presents the results of the experiments with an explosive cumulative current closing switch having a minimum amount of HE that allows using it both at the test sites and on the laboratory facilities. In the experiments conducted the amplitude of current in a discharge circuit reached 50 kA, the contact keeping time was no more than 100 ¿s, and the magnitude of contact resistance was within the range 0,1...0,2 mOhm. When the powerful pulsed sources of current are used, a necessity arises in a number of cases to close some parts of the electric circuit of the source. For example, often the load circuit is separated from the source circuit with the help of a special closing switch at a required time moment to limit the effect of the pulsed current source on the load. The fast-operating closing switches for the electric circuits of powerful pulsed sources of current are called crowbars.
Starting Page	343
Ending Page	347
File Size	255337
Page Count	5
File Format	PDF
ISBN	9781424420612
DOI	10.1109/MEGAGUSS.2006.4530699
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-11-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Contacts Capacitors Laboratories Switches Fault location Explosives Pulse circuits Helium Circuit testing Switching circuits
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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