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 | |
| Publication status | Published - 16 May 2014 |
| Externally published | Yes |
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Keywords
- Gas discharge
- Inversion of polarity effect
- Nanosecond pulse
- Nitrogen
- Polarity effect
ASJC Scopus subject areas
- Physics and Astronomy(all)
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
}
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 -