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Tree Growth in Epoxy Resin Under Unipolar and Bipolar Square-Wave Voltages

The influence of DC bias on electrical tree growth under 13 kV square-wave voltages at 50 Hz in epoxy resin is investigated. Tree growth is captured in a needle-plane configuration using a CCD camera and digital microscope. Tree growth is accelerated under positive unipolar square waves in compariso...

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Main Authors:	Aldawsari, Faisal, Liu, Fang, McDonald, Harry, Rowland, Simon
Format:	Conference Proceeding
Language:	English
Subjects:	bipolar Charge coupled devices Electric breakdown electrical tree Electrodes epoxy resin Epoxy resins Insulation Microscopy negative unipolar positive unipolar reverse tree Surface waves
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creator	Aldawsari, Faisal Liu, Fang McDonald, Harry Rowland, Simon
description	The influence of DC bias on electrical tree growth under 13 kV square-wave voltages at 50 Hz in epoxy resin is investigated. Tree growth is captured in a needle-plane configuration using a CCD camera and digital microscope. Tree growth is accelerated under positive unipolar square waves in comparison with a bipolar square waves and negative square waves. Tree growth under positive and negative unipolar square wave voltages can be described as a three-stage process, while under bipolar square wave voltages tree growth follows a five-stage process. Reverse tree growth is observed before breakdown only under bipolar square waves. No reverse tree growth was seen under unipolar square waves of either polarity. Damage was observed at the bottom of the plane surface of epoxy where the reverse tree channels initiated.
doi_str_mv	10.1109/CEIDP55452.2022.9985261
format	conference_proceeding
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Tree growth is captured in a needle-plane configuration using a CCD camera and digital microscope. Tree growth is accelerated under positive unipolar square waves in comparison with a bipolar square waves and negative square waves. Tree growth under positive and negative unipolar square wave voltages can be described as a three-stage process, while under bipolar square wave voltages tree growth follows a five-stage process. Reverse tree growth is observed before breakdown only under bipolar square waves. No reverse tree growth was seen under unipolar square waves of either polarity. 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Tree growth is captured in a needle-plane configuration using a CCD camera and digital microscope. Tree growth is accelerated under positive unipolar square waves in comparison with a bipolar square waves and negative square waves. Tree growth under positive and negative unipolar square wave voltages can be described as a three-stage process, while under bipolar square wave voltages tree growth follows a five-stage process. Reverse tree growth is observed before breakdown only under bipolar square waves. No reverse tree growth was seen under unipolar square waves of either polarity. Damage was observed at the bottom of the plane surface of epoxy where the reverse tree channels initiated.</description><subject>bipolar</subject><subject>Charge coupled devices</subject><subject>Electric breakdown</subject><subject>electrical tree</subject><subject>Electrodes</subject><subject>epoxy resin</subject><subject>Epoxy resins</subject><subject>Insulation</subject><subject>Microscopy</subject><subject>negative unipolar</subject><subject>positive unipolar</subject><subject>reverse tree</subject><subject>Surface waves</subject><issn>2576-2397</issn><isbn>9781665467957</isbn><isbn>1665467959</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2022</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><recordid>eNotj8tOwzAURA0SEqX0C1jgH0jwo762lxBCKaoEghaW1W1yA0EhCU549O-JRDYzR2cx0jB2LkUspfAXSbq8fjBmblSshFKx984okAds5q2TAGYO1ht7yCbKWIiU9vaYnXTduxBKWyUn7G4diPgiND_9Gy9rnrbN754_Ujfwps4pDFm2TYWBY53zq5GfPr8wUPSC38Sfm6rHV-pO2VGBVUezsadsc5Ouk9todb9YJperqJRa9xFYZzKndhKERg15kWGeOQDpkaRFl4EwVhRqR86DA-OosDbPBolSkbN6ys7-d0si2rah_MCw347X9R88SU2R</recordid><startdate>20221030</startdate><enddate>20221030</enddate><creator>Aldawsari, Faisal</creator><creator>Liu, Fang</creator><creator>McDonald, Harry</creator><creator>Rowland, Simon</creator><general>IEEE</general><scope>6IE</scope><scope>6IH</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIO</scope></search><sort><creationdate>20221030</creationdate><title>Tree Growth in Epoxy Resin Under Unipolar and Bipolar Square-Wave Voltages</title><author>Aldawsari, Faisal ; Liu, Fang ; McDonald, Harry ; Rowland, Simon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i133t-6785c82b1603a36dfcadc86619ae17a8c60570f2be8968658ef77dc057a12e873</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2022</creationdate><topic>bipolar</topic><topic>Charge coupled devices</topic><topic>Electric breakdown</topic><topic>electrical tree</topic><topic>Electrodes</topic><topic>epoxy resin</topic><topic>Epoxy resins</topic><topic>Insulation</topic><topic>Microscopy</topic><topic>negative unipolar</topic><topic>positive unipolar</topic><topic>reverse tree</topic><topic>Surface waves</topic><toplevel>online_resources</toplevel><creatorcontrib>Aldawsari, Faisal</creatorcontrib><creatorcontrib>Liu, Fang</creatorcontrib><creatorcontrib>McDonald, Harry</creatorcontrib><creatorcontrib>Rowland, Simon</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan (POP) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE/IET Electronic Library</collection><collection>IEEE Proceedings Order Plans (POP) 1998-present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Aldawsari, Faisal</au><au>Liu, Fang</au><au>McDonald, Harry</au><au>Rowland, Simon</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Tree Growth in Epoxy Resin Under Unipolar and Bipolar Square-Wave Voltages</atitle><btitle>2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)</btitle><stitle>CEIDP</stitle><date>2022-10-30</date><risdate>2022</risdate><spage>431</spage><epage>434</epage><pages>431-434</pages><eissn>2576-2397</eissn><eisbn>9781665467957</eisbn><eisbn>1665467959</eisbn><abstract>The influence of DC bias on electrical tree growth under 13 kV square-wave voltages at 50 Hz in epoxy resin is investigated. Tree growth is captured in a needle-plane configuration using a CCD camera and digital microscope. Tree growth is accelerated under positive unipolar square waves in comparison with a bipolar square waves and negative square waves. Tree growth under positive and negative unipolar square wave voltages can be described as a three-stage process, while under bipolar square wave voltages tree growth follows a five-stage process. Reverse tree growth is observed before breakdown only under bipolar square waves. No reverse tree growth was seen under unipolar square waves of either polarity. Damage was observed at the bottom of the plane surface of epoxy where the reverse tree channels initiated.</abstract><pub>IEEE</pub><doi>10.1109/CEIDP55452.2022.9985261</doi><tpages>4</tpages></addata></record>
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identifier	EISSN: 2576-2397
ispartof	2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 2022, p.431-434
issn	2576-2397
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recordid	cdi_ieee_primary_9985261
source	IEEE Xplore All Conference Series
subjects	bipolar Charge coupled devices Electric breakdown electrical tree Electrodes epoxy resin Epoxy resins Insulation Microscopy negative unipolar positive unipolar reverse tree Surface waves
title	Tree Growth in Epoxy Resin Under Unipolar and Bipolar Square-Wave Voltages
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