Abnormal polarity effect in nanosecond-pulse breakdown of SF<sub>6</sub> and nitrogen

Abstract

The breakdown of gas gaps in an inhomogeneous electric field at subnanosecond and nanosecond voltage pulse rise times are studied, and the famous polarity effect in point-to-plane gaps is investigated. It is shown that at a voltage pulse rise time of ∼0.5 ns, the inversion of polarity effect takes place not only in electronegative gases such as SF₆, but also occurs in electropositive nitrogen. The inversion of polarity effect is related to a delay of electron emission from the plane cathode on arrival of the ionization wave front anode to the cathode. It is found that with a voltage pulse rise time of ∼0.5 ns, the inversion of polarity effect occurs at SF₆ and SF₆-N₂ pressures of 0.25 MPa and lower, and with a voltage pulse rise time of 15 ns, at a SF₆ pressure lower than 0.12 MPa.

Original language	English
Pages (from-to)	1828-1833
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	378
Issue number	26-27
DOIs	https://doi.org/10.1016/j.physleta.2014.04.068
Publication status	Published - 16 May 2014
Externally published	Yes

Keywords

Gas discharge
Inversion of polarity effect
Nanosecond pulse
Nitrogen
Polarity effect

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1016/j.physleta.2014.04.068

Fingerprint Dive into the research topics of 'Abnormal polarity effect in nanosecond-pulse breakdown of SF<sub>6</sub> and nitrogen'. Together they form a unique fingerprint.

Cite this

Abnormal polarity effect in nanosecond-pulse breakdown of SF₆ and nitrogen. / Shao, Tao; Tarasenko, Victor F.; Zhang, Cheng; Beloplotov, Dmitry S.; Yang, Wenjin; Lomaev, Mikhail I.; Zhou, Zhongsheng; Sorokin, Dmitry A.; Yan, Ping.

In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 378, No. 26-27, 16.05.2014, p. 1828-1833.

Research output: Contribution to journal › Article › peer-review

@article{c14085c620d542a291713090722fd9a3,

title = "Abnormal polarity effect in nanosecond-pulse breakdown of SF6 and nitrogen",

abstract = "The breakdown of gas gaps in an inhomogeneous electric field at subnanosecond and nanosecond voltage pulse rise times are studied, and the famous polarity effect in point-to-plane gaps is investigated. It is shown that at a voltage pulse rise time of ∼0.5 ns, the inversion of polarity effect takes place not only in electronegative gases such as SF6, but also occurs in electropositive nitrogen. The inversion of polarity effect is related to a delay of electron emission from the plane cathode on arrival of the ionization wave front anode to the cathode. It is found that with a voltage pulse rise time of ∼0.5 ns, the inversion of polarity effect occurs at SF6 and SF6-N2 pressures of 0.25 MPa and lower, and with a voltage pulse rise time of 15 ns, at a SF6 pressure lower than 0.12 MPa.",

keywords = "Gas discharge, Inversion of polarity effect, Nanosecond pulse, Nitrogen, Polarity effect",

author = "Tao Shao and Tarasenko, {Victor F.} and Cheng Zhang and Beloplotov, {Dmitry S.} and Wenjin Yang and Lomaev, {Mikhail I.} and Zhongsheng Zhou and Sorokin, {Dmitry A.} and Ping Yan",

year = "2014",

month = may,

day = "16",

doi = "10.1016/j.physleta.2014.04.068",

language = "English",

volume = "378",

pages = "1828--1833",

journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

issn = "0375-9601",

publisher = "Elsevier",

number = "26-27",

}

TY - JOUR

T1 - Abnormal polarity effect in nanosecond-pulse breakdown of SF6 and nitrogen

AU - Shao, Tao

AU - Tarasenko, Victor F.

AU - Zhang, Cheng

AU - Beloplotov, Dmitry S.

AU - Yang, Wenjin

AU - Lomaev, Mikhail I.

AU - Zhou, Zhongsheng

AU - Sorokin, Dmitry A.

AU - Yan, Ping

PY - 2014/5/16

Y1 - 2014/5/16

N2 - The breakdown of gas gaps in an inhomogeneous electric field at subnanosecond and nanosecond voltage pulse rise times are studied, and the famous polarity effect in point-to-plane gaps is investigated. It is shown that at a voltage pulse rise time of ∼0.5 ns, the inversion of polarity effect takes place not only in electronegative gases such as SF6, but also occurs in electropositive nitrogen. The inversion of polarity effect is related to a delay of electron emission from the plane cathode on arrival of the ionization wave front anode to the cathode. It is found that with a voltage pulse rise time of ∼0.5 ns, the inversion of polarity effect occurs at SF6 and SF6-N2 pressures of 0.25 MPa and lower, and with a voltage pulse rise time of 15 ns, at a SF6 pressure lower than 0.12 MPa.

AB - The breakdown of gas gaps in an inhomogeneous electric field at subnanosecond and nanosecond voltage pulse rise times are studied, and the famous polarity effect in point-to-plane gaps is investigated. It is shown that at a voltage pulse rise time of ∼0.5 ns, the inversion of polarity effect takes place not only in electronegative gases such as SF6, but also occurs in electropositive nitrogen. The inversion of polarity effect is related to a delay of electron emission from the plane cathode on arrival of the ionization wave front anode to the cathode. It is found that with a voltage pulse rise time of ∼0.5 ns, the inversion of polarity effect occurs at SF6 and SF6-N2 pressures of 0.25 MPa and lower, and with a voltage pulse rise time of 15 ns, at a SF6 pressure lower than 0.12 MPa.

KW - Gas discharge

KW - Inversion of polarity effect

KW - Nanosecond pulse

KW - Nitrogen

KW - Polarity effect

UR - http://www.scopus.com/inward/record.url?scp=84901588951&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84901588951&partnerID=8YFLogxK

U2 - 10.1016/j.physleta.2014.04.068

DO - 10.1016/j.physleta.2014.04.068

M3 - Article

AN - SCOPUS:84901588951

VL - 378

SP - 1828

EP - 1833

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

SN - 0375-9601

IS - 26-27

ER -