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Upon the influence of the post-arc current on the low voltage switching process in vacuum

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5 Author(s)
D. Pavelescu ; Fac. of Electrotechnics, Politehnic Inst. of Bucharest, Romania ; S. Nitu ; G. Dumitrescu ; V. Trucsa
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The paper presents one stage of the scientific research, performed for the investigation of the post-arc (p.a.) current within low voltage switching process in vacuum, when interrupting short-circuit currents of high values. A large power equipment, supplied by the mains and providing an accurate reproduction of the processes, concerning the short circuit phenomenon (U=1.5 kV; I=100 kA) was used. An experimental model, which can reproduce the switching conditions of the power circuit-breaker in vacuum, was available as well. The influence of an axial magnetic field on the p.a. current and the switching process was also explored

Published in:

IEEE Transactions on Plasma Science  (Volume:27 ,  Issue: 4 )