Influence of a pulse axial magnetic field on a high-current arc of a vacuum circuit breaker
The effect of a relatively short external axial magnetic field on the characteristics of a vacuum arc discharge in a vacuum circuit breaker is investigated. A pulsed magnetic field was created by external coils. The shape of the magnetic field pulse is one harmonic half-cycle with a duration of 1.5, 2.8, or 4.5 ms. Magnetic field induction was regulated independently of the main discharge current. The use of a delay generator made it possible to apply the magnetic field at different moments of time relative to the main discharge current in the gap. It is assumed that the use of the pulsed magnetic field will make it possible to control the burning regime of a high-current vacuum arc, i.e. realize the reverse mode with the transition from the active anode spot to the diffuse mode of discharge burning.
Keywords
axial magnetic field,
vacuum circuit breaker,
high-current vacuum arcAuthors
| Schneider A.V. | Institute of High Current Electronics SB RAS | schneider@lve.hcei.tsc.ru |
| Popov S.A. | Institute of High Current Electronics SB RAS | popov@lve.hcei.tsc.ru |
| Dubrovskaya E.L. | Institute of High Current Electronics SB RAS | selena@lve.hcei.tsc.ru |
Всего: 3
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