NDLI: Technique for determining the channel expansion rate at the stage of electrical breakdown using a grounded intercepting ring

Content Provider	Springer Nature Link
Author	Apollov, V. V. Pletnev, N. V.
Copyright Year	2016
Abstract	A method is described that allows one to study the conductivity dynamics of a channel produced by explosion of a wire at the stage of electrical breakdown. Experimental data have been presented for the expansion rate of the conductivity channel in extended (up to 1.9 m long) arbitrarily shaped gapes that were produced by an exploding copper wire 90 µm in diameter. The initial stored energy and applied voltage were, respectively, 2.7–3.7 kJ and 8–10 kV. It has been shown that the expansion rate of the conductivity channel coincides with the propagation rate of a shock wave and is inversely proportional to the square root of its radius and propagation time. The radius of the shock wave is a linear function of the square root of its propagation rate. Experimental data are in satisfactory agreement with the calculated results obtained by Lin [18] in terms of the model of an intense shock wave. It has been shown that the diameter of the conductivity channel depends on the position of the trailing edge of the shock wave.
Starting Page	1654
Ending Page	1660
Page Count	7
File Format	PDF
ISSN	10637842
Journal	Technical Physics
Volume Number	61
Issue Number	11
e-ISSN	10906525
Language	English
Publisher	Pleiades Publishing
Publisher Date	2016-11-15
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Classical and Continuum Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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