Frequency Dependent PD-pulse Distortion in Rotating Machines

Joachim T. Holbøll; Mogens Henriksen

doi:10.1109/ELINSL.1996.549315

Frequency Dependent PD-pulse Distortion in Rotating Machines

Joachim T. Holbøll, Mogens Henriksen

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Abstract

In this contribution, the authors present results from investigations on the distortion of PD pulses in the stator winding of a 10 kV asynchronous motor. In order to determine the distortion of PD pulses from different, well defined parts in the winding, the following two techniques were used simultaneously: (a) ultra wide band detection in the frequency range of 20-400 MHz by means of stator slot couplers under the stator wedges, in order to localize and quantify the discharges; and (b) high frequency measurements in the frequency range of 1-100 MHz by means of high frequency current transformers at the machine terminals. The results show a variation of the attenuation of the discharge pulses inside the machine of about 20 dB highest for pulses from the far end, i.e. the neutral point. The capability of exact localization of the discharges in the winding gives a correct measure of the range of the current transformer based detection method, when being applied to rotating machines. The results are discussed with regard to the practical application of PD detection systems on rotating machines, particularly considering aspects of range and applicability of systems in the HF ranges

Original language	English
Title of host publication	Conference Record of The 1996 IEEE International Symposium on Electrical Insulation
Place of Publication	Pitscatasway
Publisher	IEEE
Publication date	1996
Pages	192-196
ISBN (Print)	0-7803-3531-7
DOIs	https://doi.org/10.1109/ELINSL.1996.549315
Publication status	Published - 1996
Event	1996 IEEE International Symposium on Electrical Insulation - Montreal, Quebec, Canada Duration: 16 Jun 1996 → 19 Jun 1996

Conference

Conference	1996 IEEE International Symposium on Electrical Insulation
Country	Canada
City	Montreal, Quebec
Period	16/06/1996 → 19/06/1996

Bibliographical note

Copyright: 1996 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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10.1109/ELINSL.1996.549315

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@inproceedings{749e0b03a79f493f8397187ad8db79b7,

title = "Frequency Dependent PD-pulse Distortion in Rotating Machines",

abstract = "In this contribution, the authors present results from investigations on the distortion of PD pulses in the stator winding of a 10 kV asynchronous motor. In order to determine the distortion of PD pulses from different, well defined parts in the winding, the following two techniques were used simultaneously: (a) ultra wide band detection in the frequency range of 20-400 MHz by means of stator slot couplers under the stator wedges, in order to localize and quantify the discharges; and (b) high frequency measurements in the frequency range of 1-100 MHz by means of high frequency current transformers at the machine terminals. The results show a variation of the attenuation of the discharge pulses inside the machine of about 20 dB highest for pulses from the far end, i.e. the neutral point. The capability of exact localization of the discharges in the winding gives a correct measure of the range of the current transformer based detection method, when being applied to rotating machines. The results are discussed with regard to the practical application of PD detection systems on rotating machines, particularly considering aspects of range and applicability of systems in the HF ranges",

author = "Holb{\o}ll, {Joachim T.} and Mogens Henriksen",

note = "Copyright: 1996 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE; 1996 IEEE International Symposium on Electrical Insulation ; Conference date: 16-06-1996 Through 19-06-1996",

year = "1996",

doi = "10.1109/ELINSL.1996.549315",

language = "English",

isbn = "0-7803-3531-7",

pages = "192--196",

booktitle = "Conference Record of The 1996 IEEE International Symposium on Electrical Insulation",

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address = "United States",

}

TY - GEN

T1 - Frequency Dependent PD-pulse Distortion in Rotating Machines

AU - Holbøll, Joachim T.

AU - Henriksen, Mogens

N1 - Copyright: 1996 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

PY - 1996

Y1 - 1996

N2 - In this contribution, the authors present results from investigations on the distortion of PD pulses in the stator winding of a 10 kV asynchronous motor. In order to determine the distortion of PD pulses from different, well defined parts in the winding, the following two techniques were used simultaneously: (a) ultra wide band detection in the frequency range of 20-400 MHz by means of stator slot couplers under the stator wedges, in order to localize and quantify the discharges; and (b) high frequency measurements in the frequency range of 1-100 MHz by means of high frequency current transformers at the machine terminals. The results show a variation of the attenuation of the discharge pulses inside the machine of about 20 dB highest for pulses from the far end, i.e. the neutral point. The capability of exact localization of the discharges in the winding gives a correct measure of the range of the current transformer based detection method, when being applied to rotating machines. The results are discussed with regard to the practical application of PD detection systems on rotating machines, particularly considering aspects of range and applicability of systems in the HF ranges

AB - In this contribution, the authors present results from investigations on the distortion of PD pulses in the stator winding of a 10 kV asynchronous motor. In order to determine the distortion of PD pulses from different, well defined parts in the winding, the following two techniques were used simultaneously: (a) ultra wide band detection in the frequency range of 20-400 MHz by means of stator slot couplers under the stator wedges, in order to localize and quantify the discharges; and (b) high frequency measurements in the frequency range of 1-100 MHz by means of high frequency current transformers at the machine terminals. The results show a variation of the attenuation of the discharge pulses inside the machine of about 20 dB highest for pulses from the far end, i.e. the neutral point. The capability of exact localization of the discharges in the winding gives a correct measure of the range of the current transformer based detection method, when being applied to rotating machines. The results are discussed with regard to the practical application of PD detection systems on rotating machines, particularly considering aspects of range and applicability of systems in the HF ranges

U2 - 10.1109/ELINSL.1996.549315

DO - 10.1109/ELINSL.1996.549315

M3 - Article in proceedings

SN - 0-7803-3531-7

SP - 192

EP - 196

BT - Conference Record of The 1996 IEEE International Symposium on Electrical Insulation

PB - IEEE

CY - Pitscatasway

T2 - 1996 IEEE International Symposium on Electrical Insulation

Y2 - 16 June 1996 through 19 June 1996

ER -

Frequency Dependent PD-pulse Distortion in Rotating Machines

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