Investigation on 10/350 Crowbar Pulse Current Circuit

Yao, Xueling; Chen, Jingliang; Sun, Wei

doi:10.1088/1009-0630/12/4/21

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…Each crowbar device is composed of three spark gaps, two main electrodes, and one auxiliary electrode for operating the main electrodes. The voltage supplied to the auxiliary electrode electrically connects the two main electrodes to momentarily make the wave tail part of the circuit [8]. Fig.…”

Section: Operating Principlementioning

confidence: 99%

Parameters Optimization of Impulse Generator Circuit for Generating First Short Stroke Lightning Current Waveform

Eom¹,

Cho²,

Lee³

2014

Journal of Electrical Engineering and Technology

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-This paper presents the parameters optimization technology for generating the first short stroke lightning current waveform(10/350 μs) which is necessary for the performance tests of components of lightning protection systems, as required under IEC 62305 and the newly amended IEC 62561. The circuit using the crowbar device specified in IEC 62305 was applied to generate the lightning current waveform. To find the proper parameters of the circuit is not easy because the circuit consists of two parts; circuit I, which relates to the front of current waveform, and circuit II, which relates to the tail. A simulation in PSpise was carried out to find main factors related to the front and tail of 10/350 μs. The lightning current generator was developed by utilizing the circuit parameters found in the simulation. In the result of experiments, new parameters of the circuits need to be changed because of the difference between the simulation and the experiment results. Using the iterative method, the optimized parameters of the circuits was determined. Also a multistage-type external coil and a damping resistor were proposed to make the efficiency of generation to enhance. According to the result in this paper, an optimized first short stroke lightning current waveform was obtained.

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Section: Operating Principlementioning

confidence: 99%

Parameters Optimization of Impulse Generator Circuit for Generating First Short Stroke Lightning Current Waveform

Eom¹,

Cho²,

Lee³

2014

Journal of Electrical Engineering and Technology

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“…Furthermore, there will be AC following current after the lightning current. The hollow cathode surge protection gap (HCSPG), working in a low pressure or vacuum environment, has an excellent ability to pass direct lightning [11,12] . In this study, an HCSPG was designed.…”

Section: Introductionmentioning

confidence: 99%

Study of Discharging Characteristics of Hollow Cathode Surge Protective Gap

Yao

Chen

et al. 2010

Plasma Sci. Technol.

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A hollow cathode surge protective gap (HCSPG) was designed, and the discharge characteristics was investigated in an air and nitrogen gas environment. For both the gap spacing D and the hole diameter φ of HCSPG of 3 mm, the voltage protective value Up of HCSPG is about 3.5 kV and its converting time tc exceeds 100 ns at an air pressure from 10 Pa to 100 Pa. The maximum converting time tc from glow to arc discharging reaches 1600 ns at an air pressure of 100 Pa, while the minimum converting time tc is 120 ns at 10 Pa. For a triggered HCSPG, Up is reduced to about 1.6 kV while the converting time is 120 ns with a semiconductor trigger device and 50 ns with a dielectric porcelain trigger device under an air pressure of 100 Pa.

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“…For example, the active controlled surge protective gas-discharge arresters with tracking system [4][5][6] has appeared. One of the most perspective elements for lightning-protective complex constructions is a system of multichamber arresters [7,8] designed by Streamer, Electric Company Inc [9].…”

mentioning

confidence: 99%