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Recovery characteristics of vacuum arcs

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2 Author(s)
Cobine, J. D. ; General Electric Company, Schenectady, N. Y. ; Farrall, G. A.

A study has been made of the breakdown and recovery strength characteristics of experimental vacuum interrupters incorporating a variety of contact materials. Our data show that much of the breakdown strength for these devices is gained in less than a 1/8-inch gap length. Experiments using a synthetic test system indicate that these experimental switches recover nearly all of their breakdown strength in 1 to 15 ¿sec (microseconds) after the cessation of peak arc current ranging from 400 to 3,200 amp (amperes).

Published in:

American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the  (Volume:82 ,  Issue: 2 )