Study of the effect of a vacuum arc current interruption in a nonuniform magnetic field

Alferov, D. F.; Londer, Ya. I.; Ul’yanov, K. N.

doi:10.1109/deiv.2008.4676778

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…Alferov et al. [17–19, 29] investigated the effect of an axisymmetric TMF on the DC vacuum arc. They held the arc became unstable when the arc current less than a critical arc current.…”

Section: Discussionmentioning

confidence: 99%

“…They proposed the vacuum arc became unstable when the plasma height was Corresponding waveform [23] less than the gap length. Alferov et al [17][18][19]29] investigated the effect of an axisymmetric TMF on the DC vacuum arc. They held the arc became unstable when the arc current less than a critical arc current.…”

Section: Physical Process In the Interruptionmentioning

confidence: 99%

“…Alferov et al. [17–19]studied the current interruption process in the presence of the axisymmetric TMF. Hanashiro et al.…”

Section: Introductionmentioning

confidence: 99%

“…Klajn [16] experimentally investigated the relationship between the magnetic field and the arc voltage. Alferov et al [17][18][19]studied the current interruption process in the presence of the axisymmetric TMF. Hanashiro et al [20] successfully interrupted DC 400 V/200 A by using the vacuum chamber under TMF.…”

Section: Introductionmentioning

confidence: 99%

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Novel DC current interruption technology based on the instability of vacuum arc under composite transverse magnetic fields

Liu

Chen

et al. 2021

IET Generation Trans & Dist

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The objective of this work intends to propose a novel current interruption technology in vacuum for LVDC power systems, based on the instability of vacuum arc under composite transverse magnetic fields (TMFs). The interruption characteristics were experimentally determined in an overdamping C‐L‐R circuit. The experimental results indicated that the DC current of 800 V/500 A could be successfully interrupted within 5 ms by the proposed technology. Moreover, the interruption process could be divided into two stages, the Stable and Unstable stages. In the Stable stage, the arc voltage linearly increased from 20 to 35 V, where the arc current was limited slightly. In the Unstable stage, the arc voltage would rapidly increase and exceed the supply voltage, where the current would be forced to zero. Finally, the double‐break LVDC vacuum switches, no matter in series or parallel, were difficult to improve the interruption capability, because of the asynchronous occurrence of the Unstable stage in series vacuum interrupters and the fast current‐commutation between parallel vacuum interrupters. This technology takes advantages of high interruption capability, short arcing time and low complexity, which is a promising solution to expand the application of vacuum switch to the LVDC power systems.

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“…Alferov et al. [17–19, 29] investigated the effect of an axisymmetric TMF on the DC vacuum arc. They held the arc became unstable when the arc current less than a critical arc current.…”

Section: Discussionmentioning

confidence: 99%

Section: Physical Process In the Interruptionmentioning

confidence: 99%

“…Alferov et al. [17–19]studied the current interruption process in the presence of the axisymmetric TMF. Hanashiro et al.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Novel DC current interruption technology based on the instability of vacuum arc under composite transverse magnetic fields

Liu

Chen

et al. 2021

IET Generation Trans & Dist

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show abstract

“…There has been some previous research on the interaction between the vacuum arc and TMF. In low voltage DC interruption, the vacuum arc commutation needs the applied TMF to extinguish the vacuum arc when the current is 6-15 kA [15][16][17]. In the condition of the CLR (0.5-2 Ω) and the DC current (below 1000 A), the vacuum arc commutating characteristic is investigated, which may be useful to DC FCL [18].…”

Section: A Novel Post-arc Current Measuring Equipment Based On Vacuum...mentioning

confidence: 99%

A novel post-arc current measuring equipment based on vacuum arc commutation and arc blow

Liao

Duan

et al. 2017

Meas. Sci. Technol.

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The paper proposes a novel post-arc current measuring equipment (NPACME), which is based on the vacuum arc commutation and magnetic arc blow. The NPACME is composed of the vacuum circuit breaker (VCB), shunt resistor, protective gap, high-precision current sensor and externally applied transverse magnetic field (ETMF). The prototype of the NPACME is designed and controlled by optical fiber communications. The vacuum arc commutation between the vacuum arc and the shunt resistor with ETMF is investigated. The test platform is established in the synthetic short-circuit test and the vacuum arc is observed by the high speed CMOS camera. The mathematic description of the vacuum arc commutation is obtained. Based on the current commutation characteristic, the parameters of the NPACME are optimized and the post-arc current is measured. The measuring result of the post-arc current is accurate with small interference and the post-arc charge is obtained. The experimental results verify that the NPACME is correct and accurate, which can be used to measure the post-arc characteristic in breaking test.

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The current commutation characteristics of DC micro-grid hybrid circuit breakers

Huang

Liao

et al. 2016

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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Study of the effect of a vacuum arc current interruption in a nonuniform magnetic field

Cited by 6 publications

References 8 publications

Novel DC current interruption technology based on the instability of vacuum arc under composite transverse magnetic fields

Novel DC current interruption technology based on the instability of vacuum arc under composite transverse magnetic fields

A novel post-arc current measuring equipment based on vacuum arc commutation and arc blow

The current commutation characteristics of DC micro-grid hybrid circuit breakers

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