Experimental Study of Flat Format Multichannel Triggered Rail Spark Gap

Sharma, Rachna; Chavan, Satish G.; Sadhu, Ranjeet Kumar; Bhattacharya, Shiben; Srivastava, Gyan

doi:10.1109/tps.2013.2277873

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…The multiple gaps with electric discharges are employed in the systems of the high voltage electric power transmission, in the high voltage substations, for the high voltage equipments and for several applications. Due to the complexity of the process in the electrical discharges in the gases, there are multiples of question on the fundamental physical mechanism [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Impulse Breakdown Characteristics of Main Gap in the Presence of a Local Discharge

Settaouti

2019

JASPE

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The characteristics of impulse breakdown voltages and the influence of the position of third electrode in air gap are investigated experimentally to study the parameters influencing the breakdown voltage in the presence of metallic objects around the high voltage power apparatus with air insulation. Experimental results show that the factors affecting the breakdown voltage are the shape and the size of the grounded electrode, the third metallic electrode location and the gap length. A comparison between negative and positive polarities of the applied voltages indicates an important influence of the polarity in the dielectric breakdown mechanism. The possible mechanism by which the local electric discharge initiates the main dielectric breakdown seems to be the high electric field around the local discharge channel and the streamers protruding from its surface.

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Section: Introductionmentioning

confidence: 99%

Impulse Breakdown Characteristics of Main Gap in the Presence of a Local Discharge

Settaouti

2019

JASPE

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Optimized Design of Sub-kilo Joule Dense Plasma Focus and Measurement of Neutron Yield

et al. 2020

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Development of miniaturized trigatron switch and experimental investigation of its switching performance

Sharma

Chavan

Marathe

et al. 2020

Review of Scientific Instruments

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There is an increasing interest in synchronization of multiple spark gap switches while maintaining compact geometry, less-complex circuit, and low jitter switching performances. A study of the effect of electrical parameters on switching performances is necessary for the operation of a large number of simultaneous switches. A miniaturized trigatron switch assembly (Outer diameter: 35 mm and thickness: 5 mm) is developed and experimentally investigated for switching performance. A polyether ether ketone insulator and brass conductor electrodes are utilized due to their high insulation and solderable properties, respectively. Important switching parameters, delay time, switch time delay, jitter in delay time, discharging peak current, trigger break down time, and trigger break down voltage, are studied under four typical conditions. These four conditions are: (a) a fast trigger (FT) with normal circuit inductance (10 ns, 20 nH); (b) a fast trigger with higher circuit inductance (10 ns and 500 nH); (c) a slow trigger (ST) with normal circuit inductance (250 ns and 20 nH) and (d) a slow trigger with higher circuit inductance (250 ns and 500 nH). Subsequently, three trigatron spark gaps (4 kV, 5 kA, >100 shots, 4 nH, and 20 mΩ) are simultaneously switched within 5 ns time. Many experimental results are the first of their kind in terms of compact switch development, switching performance, and single electrical trigger based synchronization. This paper will also add a good value to presently available knowledge through systematically implementing the simultaneous switching condition for the generation of 5 kA, 50 ns current pulses. These low cost (US$40) trigatron switches can be utilized in low energy, compact pulsed power applications.

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Experimental Study of Flat Format Multichannel Triggered Rail Spark Gap

Cited by 4 publications

References 9 publications

Impulse Breakdown Characteristics of Main Gap in the Presence of a Local Discharge

Impulse Breakdown Characteristics of Main Gap in the Presence of a Local Discharge

Optimized Design of Sub-kilo Joule Dense Plasma Focus and Measurement of Neutron Yield

Development of miniaturized trigatron switch and experimental investigation of its switching performance

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