Effect of Harmonics on Pulse Sequence Analysis Plots from Electrical Trees

N.H. Aziz; V.M. Catterson; S. M. Rowland; S. Bahadoorsingh

doi:10.1109/CEIDP.2014.6995872

Effect of Harmonics on Pulse Sequence Analysis Plots from Electrical Trees

N.H. Aziz, V.M. Catterson, S. M. Rowland, S. Bahadoorsingh

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Abstract

This paper investigates the effect of harmonic pollution on the Pulse Sequence Analysis (PSA) pattern. Partial discharge data was captured from electrical trees growing in epoxy resin in the presence of different harmonic regimes. These regimes included 50Hz waveforms polluted with 3rd, 5th, 7th, 11th, 13th, 23rd and 25th order harmonics, at varying levels of Total Harmonic Distortion (THD) and waveshape factor (KS). In this paper, the data has been analyzed using PSA by plotting the external voltage of consecutive PD pulses (un vs un-1). Under pure 50 Hz conditions, four clusters of data points can be identified in the plot and the formation of the clusters is discussed. Further investigation was performed by running the samples to breakdown. The results show that even in the presence of harmonics, an increase of PD occurrence and phase distribution translates into the expected PSA pattern, where clusters of data points merge to form a 45 straight line. Therefore, PSA is relatively immune to the effects of harmonic distortion when considering it only as an indicator of breakdown.

Original language	English
Title of host publication	host publication
Publisher	IEEE
Pages	377-380
Number of pages	4
DOIs	https://doi.org/10.1109/CEIDP.2014.6995872
Publication status	Published - 2014
Event	Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) - Des Moines Duration: 1 Jan 1824 → …

Conference

Conference	Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)
City	Des Moines
Period	1/01/24 → …

Keywords

Pulse Sequence Analysis, PSA, Partial discharge, PD, electrical trees,Total Harmonic Distortion, THD, waveshape factor, breakdown

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10.1109/CEIDP.2014.6995872

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@inproceedings{c6e102a77071423f9599a1e216ff1a18,

title = "Effect of Harmonics on Pulse Sequence Analysis Plots from Electrical Trees",

abstract = "This paper investigates the effect of harmonic pollution on the Pulse Sequence Analysis (PSA) pattern. Partial discharge data was captured from electrical trees growing in epoxy resin in the presence of different harmonic regimes. These regimes included 50Hz waveforms polluted with 3rd, 5th, 7th, 11th, 13th, 23rd and 25th order harmonics, at varying levels of Total Harmonic Distortion (THD) and waveshape factor (KS). In this paper, the data has been analyzed using PSA by plotting the external voltage of consecutive PD pulses (un vs un-1). Under pure 50 Hz conditions, four clusters of data points can be identified in the plot and the formation of the clusters is discussed. Further investigation was performed by running the samples to breakdown. The results show that even in the presence of harmonics, an increase of PD occurrence and phase distribution translates into the expected PSA pattern, where clusters of data points merge to form a 45 straight line. Therefore, PSA is relatively immune to the effects of harmonic distortion when considering it only as an indicator of breakdown.",

keywords = "Pulse Sequence Analysis, PSA, Partial discharge, PD, electrical trees,Total Harmonic Distortion, THD, waveshape factor, breakdown",

author = "N.H. Aziz and V.M. Catterson and Rowland, {S. M.} and S. Bahadoorsingh",

note = "The first author wishes to acknowledge the Universiti Teknikal Malaysia Melaka and Malaysian Government, for giving her the opportunity to pursue her PhD study and for her financial support. VMC and SMR gratefully acknowledge the EPRSC for the financial support of this work through the Supergen HubNet project EP/I013636/1.; Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) ; Conference date: 01-01-1824",

year = "2014",

doi = "10.1109/CEIDP.2014.6995872",

language = "English",

pages = "377--380",

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publisher = "IEEE",

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TY - GEN

T1 - Effect of Harmonics on Pulse Sequence Analysis Plots from Electrical Trees

AU - Aziz, N.H.

AU - Catterson, V.M.

AU - Rowland, S. M.

AU - Bahadoorsingh, S.

N1 - The first author wishes to acknowledge the Universiti Teknikal Malaysia Melaka and Malaysian Government, for giving her the opportunity to pursue her PhD study and for her financial support. VMC and SMR gratefully acknowledge the EPRSC for the financial support of this work through the Supergen HubNet project EP/I013636/1.

PY - 2014

Y1 - 2014

N2 - This paper investigates the effect of harmonic pollution on the Pulse Sequence Analysis (PSA) pattern. Partial discharge data was captured from electrical trees growing in epoxy resin in the presence of different harmonic regimes. These regimes included 50Hz waveforms polluted with 3rd, 5th, 7th, 11th, 13th, 23rd and 25th order harmonics, at varying levels of Total Harmonic Distortion (THD) and waveshape factor (KS). In this paper, the data has been analyzed using PSA by plotting the external voltage of consecutive PD pulses (un vs un-1). Under pure 50 Hz conditions, four clusters of data points can be identified in the plot and the formation of the clusters is discussed. Further investigation was performed by running the samples to breakdown. The results show that even in the presence of harmonics, an increase of PD occurrence and phase distribution translates into the expected PSA pattern, where clusters of data points merge to form a 45 straight line. Therefore, PSA is relatively immune to the effects of harmonic distortion when considering it only as an indicator of breakdown.

AB - This paper investigates the effect of harmonic pollution on the Pulse Sequence Analysis (PSA) pattern. Partial discharge data was captured from electrical trees growing in epoxy resin in the presence of different harmonic regimes. These regimes included 50Hz waveforms polluted with 3rd, 5th, 7th, 11th, 13th, 23rd and 25th order harmonics, at varying levels of Total Harmonic Distortion (THD) and waveshape factor (KS). In this paper, the data has been analyzed using PSA by plotting the external voltage of consecutive PD pulses (un vs un-1). Under pure 50 Hz conditions, four clusters of data points can be identified in the plot and the formation of the clusters is discussed. Further investigation was performed by running the samples to breakdown. The results show that even in the presence of harmonics, an increase of PD occurrence and phase distribution translates into the expected PSA pattern, where clusters of data points merge to form a 45 straight line. Therefore, PSA is relatively immune to the effects of harmonic distortion when considering it only as an indicator of breakdown.

KW - Pulse Sequence Analysis, PSA, Partial discharge, PD, electrical trees,Total Harmonic Distortion, THD, waveshape factor, breakdown

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DO - 10.1109/CEIDP.2014.6995872

M3 - Conference contribution

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EP - 380

BT - host publication

PB - IEEE

T2 - Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)

Y2 - 1 January 1824

ER -

Effect of Harmonics on Pulse Sequence Analysis Plots from Electrical Trees

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