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

Author

Pavelescu, Dan ; Nitu, Smaranda ; Dumitrescu, Gheorghe ; Trucsa, Vasile ; Zoita, Vasile

Author_Institution

Fac. of Electrotechnics, Politehnic Inst. of Bucharest, Romania

Volume

27

Issue

4

fYear

1999

fDate

8/1/1999 12:00:00 AM

Firstpage

938

Lastpage

943

Abstract

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

Keywords

plasma switches; vacuum arcs; axial magnetic field; direct polarity; low voltage switching process; post-arc current; power circuit-breaker; power equipment; short circuit phenomenon; short-circuit currents; vacuum arc testing; Circuits; Coils; Current measurement; Low voltage; Magnetic field measurement; Magnetic fields; Magnetic switching; Shape; Testing; Vacuum arcs;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.782263

Filename

782263