DocumentCode
853935
Title
DC breaking tests up to 55 kA in a single vacuum interrupter
Author
Benfatto, I. ; Maschio, A. ; Manganaro, S.
Author_Institution
Istituto Gas Ionizzati, Padova, Italy
Volume
3
Issue
4
fYear
1988
fDate
10/1/1988 12:00:00 AM
Firstpage
1732
Lastpage
1738
Abstract
DC current breaking tests were carried out on several vacuum circuit-breakers during the design of the energy transfer units for the RFX fusion experiment. The tests were performed with a synthetic circuit able to reproduce the expected stresses on the switching element during the breaking phase. The performance of a prototype for a medium-voltage AC switch with a self-produced axial magnetic field is discussed. The interrupter was found capable of breaking currents up to 55 kA with a recovery voltage greater than 35 kV and high values of di /dt in a large range of arcing times
Keywords
circuit breakers; testing; vacuum apparatus; 0 to 55 kA; 35 kV; DC current breaking tests; RFX fusion experiment; self-produced axial magnetic field; vacuum circuit-breakers; Circuit testing; Elementary particle vacuum; Energy exchange; Interrupters; Medium voltage; Performance evaluation; Prototypes; Stress; Switches; Switching circuits;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/61.193978
Filename
193978
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