Using a field probe to study the mechanism of partial discharges in very small air gaps under direct voltage

Due to the growing use of high-voltage direct current (HVDC) for power transmission, it is of interest whether the diagnostic tools introduced in the past for insulation condition assessment of high-voltage alternating current (HVAC) apparatus are also applicable for quality assurance tests of HVDC...
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Gespeichert in:

Autor*in:	Lemke, E [verfasserIn]

Format:	Artikel
Sprache:	Englisch

Erschienen:	2016

Schlagwörter:	Voltage measurement partial discharge dielectric diagnostics spark discharge Electrodes Sparks Partial discharges Capacitance Discharges (electric) gas discharge Dielectrics

Übergeordnetes Werk:	Enthalten in: IEEE electrical insulation magazine - New York, NY : IEEE, 1985, 32(2016), 4, Seite 43-51
Übergeordnetes Werk:	volume:32 ; year:2016 ; number:4 ; pages:43-51

Links:	Volltext Link aufrufen

DOI / URN:	10.1109/MEI.2016.7528989

Katalog-ID:	OLC1980416060

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520			\|a Due to the growing use of high-voltage direct current (HVDC) for power transmission, it is of interest whether the diagnostic tools introduced in the past for insulation condition assessment of high-voltage alternating current (HVAC) apparatus are also applicable for quality assurance tests of HVDC equipment. This refers in particular to the measurement of partial discharges (PD) in compliance with the international standard IEC 60270 [1], [2]. As PD events in gaseous cavities embedded in the bulk dielectric of HV equipment are the most harmful ones, the mechanism of such internal discharges should be well known to judge the PD severity as well as to specify appropriate procedures and quantities for PD tests under direct voltage. According to Devins cavity discharges can be classified as "Townsendlike discharges" and "streamer-like discharges" [3]. Even if this classification seems to be reasonable for cavity discharges under both alternating and direct voltage [4]-[6], this has been rejected by Bartnikas. So, he argued in [7] that "the term 'streamer' by itself, when applied to PD in relatively short gaps or small cavity diameters, introduces unnecessarily a misleading term in the PD lexicon. PD, when occurring in short gaps, may assume different forms: rapid and slow rise time spark-type pulses." This is also consistent with the worldwide established PD model according to Kreuger [8], which is based on the hypothesis that the virtual cavity capacitance is discharged via a conductive spark channel. Despite simplicity, this concept was rejected by Pedersen and his coworkers [9], [10]. As an alternative, they promoted a more sophisticated field-theoretical approach based on a dipole model. As their concept is not easily understandable, this was presented in a more simplified manner in this Magazine [11], [12] as well as in [13].
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allfields_unstemmed	10.1109/MEI.2016.7528989 doi PQ20160815 (DE-627)OLC1980416060 (DE-599)GBVOLC1980416060 (PRQ)i587-57b9f18f6634d3ad452d9f800ac7d79d81d45103e02b0bd6eb0b336cb4a4935d0 (KEY)0151665520160000032000400043usingafieldprobetostudythemechanismofpartialdischa DE-627 ger DE-627 rakwb eng 620 DNB 53.37 bkl Lemke, E verfasserin aut Using a field probe to study the mechanism of partial discharges in very small air gaps under direct voltage 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Due to the growing use of high-voltage direct current (HVDC) for power transmission, it is of interest whether the diagnostic tools introduced in the past for insulation condition assessment of high-voltage alternating current (HVAC) apparatus are also applicable for quality assurance tests of HVDC equipment. This refers in particular to the measurement of partial discharges (PD) in compliance with the international standard IEC 60270 [1], [2]. As PD events in gaseous cavities embedded in the bulk dielectric of HV equipment are the most harmful ones, the mechanism of such internal discharges should be well known to judge the PD severity as well as to specify appropriate procedures and quantities for PD tests under direct voltage. According to Devins cavity discharges can be classified as "Townsendlike discharges" and "streamer-like discharges" [3]. Even if this classification seems to be reasonable for cavity discharges under both alternating and direct voltage [4]-[6], this has been rejected by Bartnikas. So, he argued in [7] that "the term 'streamer' by itself, when applied to PD in relatively short gaps or small cavity diameters, introduces unnecessarily a misleading term in the PD lexicon. PD, when occurring in short gaps, may assume different forms: rapid and slow rise time spark-type pulses." This is also consistent with the worldwide established PD model according to Kreuger [8], which is based on the hypothesis that the virtual cavity capacitance is discharged via a conductive spark channel. Despite simplicity, this concept was rejected by Pedersen and his coworkers [9], [10]. As an alternative, they promoted a more sophisticated field-theoretical approach based on a dipole model. As their concept is not easily understandable, this was presented in a more simplified manner in this Magazine [11], [12] as well as in [13]. Voltage measurement partial discharge dielectric diagnostics spark discharge Electrodes Sparks Partial discharges Capacitance Discharges (electric) gas discharge Dielectrics Enthalten in IEEE electrical insulation magazine New York, NY : IEEE, 1985 32(2016), 4, Seite 43-51 (DE-627)130412074 (DE-600)622875-6 (DE-576)015915077 0883-7554 nnns volume:32 year:2016 number:4 pages:43-51 http://dx.doi.org/10.1109/MEI.2016.7528989 Volltext http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7528989 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_70 GBV_ILN_2016 53.37 AVZ AR 32 2016 4 43-51
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author	Lemke, E
spellingShingle	Lemke, E ddc 620 bkl 53.37 misc Voltage measurement misc partial discharge misc dielectric diagnostics misc spark discharge misc Electrodes misc Sparks misc Partial discharges misc Capacitance misc Discharges (electric) misc gas discharge misc Dielectrics Using a field probe to study the mechanism of partial discharges in very small air gaps under direct voltage
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topic_title	620 DNB 53.37 bkl Using a field probe to study the mechanism of partial discharges in very small air gaps under direct voltage Voltage measurement partial discharge dielectric diagnostics spark discharge Electrodes Sparks Partial discharges Capacitance Discharges (electric) gas discharge Dielectrics
topic	ddc 620 bkl 53.37 misc Voltage measurement misc partial discharge misc dielectric diagnostics misc spark discharge misc Electrodes misc Sparks misc Partial discharges misc Capacitance misc Discharges (electric) misc gas discharge misc Dielectrics
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title	Using a field probe to study the mechanism of partial discharges in very small air gaps under direct voltage
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title_full	Using a field probe to study the mechanism of partial discharges in very small air gaps under direct voltage
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title_sort	using a field probe to study the mechanism of partial discharges in very small air gaps under direct voltage
title_auth	Using a field probe to study the mechanism of partial discharges in very small air gaps under direct voltage
abstract	Due to the growing use of high-voltage direct current (HVDC) for power transmission, it is of interest whether the diagnostic tools introduced in the past for insulation condition assessment of high-voltage alternating current (HVAC) apparatus are also applicable for quality assurance tests of HVDC equipment. This refers in particular to the measurement of partial discharges (PD) in compliance with the international standard IEC 60270 [1], [2]. As PD events in gaseous cavities embedded in the bulk dielectric of HV equipment are the most harmful ones, the mechanism of such internal discharges should be well known to judge the PD severity as well as to specify appropriate procedures and quantities for PD tests under direct voltage. According to Devins cavity discharges can be classified as "Townsendlike discharges" and "streamer-like discharges" [3]. Even if this classification seems to be reasonable for cavity discharges under both alternating and direct voltage [4]-[6], this has been rejected by Bartnikas. So, he argued in [7] that "the term 'streamer' by itself, when applied to PD in relatively short gaps or small cavity diameters, introduces unnecessarily a misleading term in the PD lexicon. PD, when occurring in short gaps, may assume different forms: rapid and slow rise time spark-type pulses." This is also consistent with the worldwide established PD model according to Kreuger [8], which is based on the hypothesis that the virtual cavity capacitance is discharged via a conductive spark channel. Despite simplicity, this concept was rejected by Pedersen and his coworkers [9], [10]. As an alternative, they promoted a more sophisticated field-theoretical approach based on a dipole model. As their concept is not easily understandable, this was presented in a more simplified manner in this Magazine [11], [12] as well as in [13].
abstractGer	Due to the growing use of high-voltage direct current (HVDC) for power transmission, it is of interest whether the diagnostic tools introduced in the past for insulation condition assessment of high-voltage alternating current (HVAC) apparatus are also applicable for quality assurance tests of HVDC equipment. This refers in particular to the measurement of partial discharges (PD) in compliance with the international standard IEC 60270 [1], [2]. As PD events in gaseous cavities embedded in the bulk dielectric of HV equipment are the most harmful ones, the mechanism of such internal discharges should be well known to judge the PD severity as well as to specify appropriate procedures and quantities for PD tests under direct voltage. According to Devins cavity discharges can be classified as "Townsendlike discharges" and "streamer-like discharges" [3]. Even if this classification seems to be reasonable for cavity discharges under both alternating and direct voltage [4]-[6], this has been rejected by Bartnikas. So, he argued in [7] that "the term 'streamer' by itself, when applied to PD in relatively short gaps or small cavity diameters, introduces unnecessarily a misleading term in the PD lexicon. PD, when occurring in short gaps, may assume different forms: rapid and slow rise time spark-type pulses." This is also consistent with the worldwide established PD model according to Kreuger [8], which is based on the hypothesis that the virtual cavity capacitance is discharged via a conductive spark channel. Despite simplicity, this concept was rejected by Pedersen and his coworkers [9], [10]. As an alternative, they promoted a more sophisticated field-theoretical approach based on a dipole model. As their concept is not easily understandable, this was presented in a more simplified manner in this Magazine [11], [12] as well as in [13].
abstract_unstemmed	Due to the growing use of high-voltage direct current (HVDC) for power transmission, it is of interest whether the diagnostic tools introduced in the past for insulation condition assessment of high-voltage alternating current (HVAC) apparatus are also applicable for quality assurance tests of HVDC equipment. This refers in particular to the measurement of partial discharges (PD) in compliance with the international standard IEC 60270 [1], [2]. As PD events in gaseous cavities embedded in the bulk dielectric of HV equipment are the most harmful ones, the mechanism of such internal discharges should be well known to judge the PD severity as well as to specify appropriate procedures and quantities for PD tests under direct voltage. According to Devins cavity discharges can be classified as "Townsendlike discharges" and "streamer-like discharges" [3]. Even if this classification seems to be reasonable for cavity discharges under both alternating and direct voltage [4]-[6], this has been rejected by Bartnikas. So, he argued in [7] that "the term 'streamer' by itself, when applied to PD in relatively short gaps or small cavity diameters, introduces unnecessarily a misleading term in the PD lexicon. PD, when occurring in short gaps, may assume different forms: rapid and slow rise time spark-type pulses." This is also consistent with the worldwide established PD model according to Kreuger [8], which is based on the hypothesis that the virtual cavity capacitance is discharged via a conductive spark channel. Despite simplicity, this concept was rejected by Pedersen and his coworkers [9], [10]. As an alternative, they promoted a more sophisticated field-theoretical approach based on a dipole model. As their concept is not easily understandable, this was presented in a more simplified manner in this Magazine [11], [12] as well as in [13].
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title_short	Using a field probe to study the mechanism of partial discharges in very small air gaps under direct voltage
url	http://dx.doi.org/10.1109/MEI.2016.7528989 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7528989
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