PD activity in void type dielectric samples for varied DC polarity

Edward Corr; W. H. Siew; Weijia Zhao

PD activity in void type dielectric samples for varied DC polarity

Edward Corr, W. H. Siew, Weijia Zhao

Research output: Contribution to conference › Paper › peer-review

4 Citations (Scopus)

58 Downloads (Pure)

Abstract

This paper discusses the DC testing of a dielectric sample (with voids) under DC conditions. The ramp test method was employed to assess whether the tests were repeatable. Three DC ramp tests were performed in quick succession. The polarity of the first/third tests was positive and the polarity of the second test was negative. The resultant partial discharge activity was analyzed for each series of tests and compared for positive and negative conditions. The results show that the inclusion of a negative ramp between two positive ramps enabled similar PD activity to be recorded in the first and second positive ramp tests. The negative cycle was used to re-initialise the test sample and allows trapped charge to migrate enabling similar PD activity in the subsequent positive ramp test. Changes in PD behavior were observed in the distribution of PD data between the tests.

Original language	English
Number of pages	4
Publication status	Published - 16 Oct 2016
Event	Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) - Eaton Chelsea, Toronto, Canada Duration: 16 Oct 2016 → 19 Oct 2016 http://sites.ieee.org/ceidp/

Conference

Conference	Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)
Abbreviated title	CEIDP
Country/Territory	Canada
City	Toronto
Period	16/10/16 → 19/10/16
Internet address	http://sites.ieee.org/ceidp/

Keywords

cable insulation
condition monitoring
HVDC transmission
partial discharge
DC testing
varied DC polarity
ramp test method

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Corr-etal-CEIDP2016-PD-activity-in-void-type-dielectric-samples-for-varied-DC-polarity.docAccepted author manuscript, 543 KB

Cite this

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title = "PD activity in void type dielectric samples for varied DC polarity",

abstract = "This paper discusses the DC testing of a dielectric sample (with voids) under DC conditions. The ramp test method was employed to assess whether the tests were repeatable. Three DC ramp tests were performed in quick succession. The polarity of the first/third tests was positive and the polarity of the second test was negative. The resultant partial discharge activity was analyzed for each series of tests and compared for positive and negative conditions. The results show that the inclusion of a negative ramp between two positive ramps enabled similar PD activity to be recorded in the first and second positive ramp tests. The negative cycle was used to re-initialise the test sample and allows trapped charge to migrate enabling similar PD activity in the subsequent positive ramp test. Changes in PD behavior were observed in the distribution of PD data between the tests.",

keywords = "cable insulation, condition monitoring, HVDC transmission, partial discharge, DC testing, varied DC polarity, ramp test method",

author = "Edward Corr and Siew, {W. H.} and Weijia Zhao",

note = "{\textcopyright} 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.; Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), CEIDP ; Conference date: 16-10-2016 Through 19-10-2016",

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TY - CONF

T1 - PD activity in void type dielectric samples for varied DC polarity

AU - Corr, Edward

AU - Siew, W. H.

AU - Zhao, Weijia

N1 - © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2016/10/16

Y1 - 2016/10/16

N2 - This paper discusses the DC testing of a dielectric sample (with voids) under DC conditions. The ramp test method was employed to assess whether the tests were repeatable. Three DC ramp tests were performed in quick succession. The polarity of the first/third tests was positive and the polarity of the second test was negative. The resultant partial discharge activity was analyzed for each series of tests and compared for positive and negative conditions. The results show that the inclusion of a negative ramp between two positive ramps enabled similar PD activity to be recorded in the first and second positive ramp tests. The negative cycle was used to re-initialise the test sample and allows trapped charge to migrate enabling similar PD activity in the subsequent positive ramp test. Changes in PD behavior were observed in the distribution of PD data between the tests.

AB - This paper discusses the DC testing of a dielectric sample (with voids) under DC conditions. The ramp test method was employed to assess whether the tests were repeatable. Three DC ramp tests were performed in quick succession. The polarity of the first/third tests was positive and the polarity of the second test was negative. The resultant partial discharge activity was analyzed for each series of tests and compared for positive and negative conditions. The results show that the inclusion of a negative ramp between two positive ramps enabled similar PD activity to be recorded in the first and second positive ramp tests. The negative cycle was used to re-initialise the test sample and allows trapped charge to migrate enabling similar PD activity in the subsequent positive ramp test. Changes in PD behavior were observed in the distribution of PD data between the tests.

KW - cable insulation

KW - condition monitoring

KW - HVDC transmission

KW - partial discharge

KW - DC testing

KW - varied DC polarity

KW - ramp test method

UR - http://sites.ieee.org/ceidp/

M3 - Paper

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

Y2 - 16 October 2016 through 19 October 2016

ER -

PD activity in void type dielectric samples for varied DC polarity

Abstract

Conference

Keywords

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