A high-voltage gaseous switch triggered by a corona discharge for long-lifetime operation

Niedbalski, J.

doi:10.1088/0022-3727/29/3/041

Cited by 6 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Spark gap possesses several distinguishable features, such as low cost, simple mechanical structure, extremely wide range of withstanding voltage and current, which make it the most popular switches in various situations [1][2][3][4][5]. In electric power system, specifically, spark gap is applied as the over voltage protector for the series compensation system and keeps the system from being destroyed by the operating over voltage [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…However, the limited triggering energy of the trigger pulse results in the lack of the charged particles ejected in the spark gap. Thus, the working coefficient (the ratio of the charging voltage to the self-breakdown voltage) of the spark gap is generally larger than 50%, normally 70% [1,5,14,15]. In actual operation, there may be situation that the breakdown of the spark gap is required even when the working voltage is extremely low.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on a New Ignition Method of the Spark Gap Based on Plasma Ejection in Air

Huang

Yang

Huo³

et al. 2016

Contrib. Plasma Phys.

View full text Add to dashboard Cite

A new ignition method of the spark gap based on plasma ejection is proposed in this paper, as the conventional trigatron spark gap performs poorly under the low working coefficient (the ratio of the charging voltage to the self‐breakdown voltage) in air. The plasma is generated by the capillary discharge, which has high pressure, high temperature and high velocity. The capillary discharge device is placed inside the low voltage electrode. As long as the triggering signal is sent to the device, a column of the plasma flow is ejected in axial direction and develops rapidly towards the high voltage electrode. Subsequently, the gap is broken down and a high resistive channel is formed, where the thermal ionization takes place and the arc across the whole gap is generated and develops into a well conductive channel. The process of the thermal ionization of the high resistive channel varies with the change of the spark gap distance. The breakdown delay and the delay jitter of the spark gap increase with the spark gap distance, as both parameters are mainly determined by the developing process of the plasma ejection. The characteristics of the plasma flow determine the possibility of the breakdown of the spark gap under the low working coefficient. The ignition method based on capillary plasma ejection has been proved by the preliminary experiments, which indicate that under the gap length of 8 cm and the working coefficient of less than 3%, the effective ignition is still achievable.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on a New Ignition Method of the Spark Gap Based on Plasma Ejection in Air

Huang

Yang

Huo³

et al. 2016

Contrib. Plasma Phys.

View full text Add to dashboard Cite

show abstract

“…The goal of this article is to describe the performance of a high-voltage gaseous switch triggered by ultraviolet ͑UV͒ radiation generated by a corona pulsed discharge, which is intended to achieve this. The switch is an alternative version, with a modified anode, of one previously reported 4 and is triggered by the same method. Here, a pinshaped auxiliary electrode centered within an orifice made on the discharge surface of a hollow anode and connected to this electrode in series with an inductor is used to promote contraction of the discharge channel, allowing it to penetrate through the orifice.…”

Section: Introductionmentioning

confidence: 99%

A simple ultraviolet radiation-triggered switch with an electric field distortion gap for long-lifetime electrodes

Niedbalski

1998

Review of Scientific Instruments

Self Cite

View full text Add to dashboard Cite

show abstract

Experimental verification of the capillary plasma triggered long spark gap under the extremely low working coefficient in air

Huang

Yang

Huo³

et al. 2016

Physics of Plasmas

View full text Add to dashboard Cite

The paper has proposed a new triggering method for long spark gap based on capillary plasma ejection and conducted the experimental verification under the extremely low working coefficient, which represents that the ratio of the spark gap charging voltage to the breakdown voltage is particularly low. The quasi-neutral plasma is ejected from the capillary and develops through the axial direction of the spark gap. The electric field in the spark gap is thus changed and its breakdown is incurred. It is proved by the experiments that the capillary plasma ejection is effective in triggering the long spark gap under the extremely low working coefficient in air. The study also indicates that the breakdown probabilities, the breakdown delay, and the delay dispersion are all mainly determined by the characteristics of the ejected plasma, including the length of the plasma flow, the speed of the plasma ejection, and the ionization degree of the plasma. Moreover, the breakdown delay and the delay dispersion increase with the length of the long spark gap, and the polarity effect exists in the triggering process. Lastly, compared with the working patterns of the triggering device installed in the single electrode, the working pattern of the devices installed in both the two electrodes, though with the same breakdown process, achieves the ignition under longer gap distance. To be specific, at the gap length of 14 cm and the working coefficient of less than 2%, the spark gap is still ignited accurately.

show abstract

A high-voltage gaseous switch triggered by a corona discharge for long-lifetime operation

Cited by 6 publications

References 9 publications

Study on a New Ignition Method of the Spark Gap Based on Plasma Ejection in Air

Study on a New Ignition Method of the Spark Gap Based on Plasma Ejection in Air

A simple ultraviolet radiation-triggered switch with an electric field distortion gap for long-lifetime electrodes

Experimental verification of the capillary plasma triggered long spark gap under the extremely low working coefficient in air

Contact Info

Product

Resources

About