Comparison of current signatures for brush discharges using different resistance values in the discharge probes

L. Fast, B. Andersson, J. Smallwood, P. Holdstock, Jaakko Paasi

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

1 Citation (Scopus)

Abstract

Incendiary brush discharges can occur when a large or grounded conductor approaches a charged insulator in the presence of flammable atmosphere. The probability of ignition of these discharges is essential to risk assessment in process industry. It is known that even if the total energy released in the discharge exceeds the minimum ignition energy (MIE), there may not be an ignition [1]. In a companion paper in this conference, we have reported simultaneous measurements of ignition and discharge current waveforms for brush discharges in an ethylene-air mixture in ignition tests based on an IEC standard test method [2]. In this paper we show that the resistance of the electrostatic discharge measurement system can have an effect on the peak discharge current signatures and charge transferred in the brush discharge from an insulating surface. The resistance of the discharge probe seems to affect the peak current value, but also to lesser extent the amount of charge transferred in the discharge.
Original languageEnglish
Article number012036
Number of pages4
JournalJournal of Physics: Conference Series
Volume301
Issue number1
DOIs
Publication statusPublished - 2011
MoE publication typeA4 Article in a conference publication
Event13th International Conference on Electrostatics - Wales, United Kingdom
Duration: 10 Apr 201114 Apr 2011
Conference number: 13

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brushes
signatures
probes
ignition
risk assessment
waveforms
ethylene
conductors
industries
insulators
electrostatics
atmospheres
energy
air

Cite this

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abstract = "Incendiary brush discharges can occur when a large or grounded conductor approaches a charged insulator in the presence of flammable atmosphere. The probability of ignition of these discharges is essential to risk assessment in process industry. It is known that even if the total energy released in the discharge exceeds the minimum ignition energy (MIE), there may not be an ignition [1]. In a companion paper in this conference, we have reported simultaneous measurements of ignition and discharge current waveforms for brush discharges in an ethylene-air mixture in ignition tests based on an IEC standard test method [2]. In this paper we show that the resistance of the electrostatic discharge measurement system can have an effect on the peak discharge current signatures and charge transferred in the brush discharge from an insulating surface. The resistance of the discharge probe seems to affect the peak current value, but also to lesser extent the amount of charge transferred in the discharge.",
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Comparison of current signatures for brush discharges using different resistance values in the discharge probes. / Fast, L.; Andersson, B.; Smallwood, J.; Holdstock, P.; Paasi, Jaakko.

In: Journal of Physics: Conference Series, Vol. 301, No. 1, 012036, 2011.

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

TY - JOUR

T1 - Comparison of current signatures for brush discharges using different resistance values in the discharge probes

AU - Fast, L.

AU - Andersson, B.

AU - Smallwood, J.

AU - Holdstock, P.

AU - Paasi, Jaakko

PY - 2011

Y1 - 2011

N2 - Incendiary brush discharges can occur when a large or grounded conductor approaches a charged insulator in the presence of flammable atmosphere. The probability of ignition of these discharges is essential to risk assessment in process industry. It is known that even if the total energy released in the discharge exceeds the minimum ignition energy (MIE), there may not be an ignition [1]. In a companion paper in this conference, we have reported simultaneous measurements of ignition and discharge current waveforms for brush discharges in an ethylene-air mixture in ignition tests based on an IEC standard test method [2]. In this paper we show that the resistance of the electrostatic discharge measurement system can have an effect on the peak discharge current signatures and charge transferred in the brush discharge from an insulating surface. The resistance of the discharge probe seems to affect the peak current value, but also to lesser extent the amount of charge transferred in the discharge.

AB - Incendiary brush discharges can occur when a large or grounded conductor approaches a charged insulator in the presence of flammable atmosphere. The probability of ignition of these discharges is essential to risk assessment in process industry. It is known that even if the total energy released in the discharge exceeds the minimum ignition energy (MIE), there may not be an ignition [1]. In a companion paper in this conference, we have reported simultaneous measurements of ignition and discharge current waveforms for brush discharges in an ethylene-air mixture in ignition tests based on an IEC standard test method [2]. In this paper we show that the resistance of the electrostatic discharge measurement system can have an effect on the peak discharge current signatures and charge transferred in the brush discharge from an insulating surface. The resistance of the discharge probe seems to affect the peak current value, but also to lesser extent the amount of charge transferred in the discharge.

U2 - 10.1088/1742-6596/301/1/012036

DO - 10.1088/1742-6596/301/1/012036

M3 - Article in a proceedings journal

VL - 301

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

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