PD characteristics and degradation in PET insulation with vented and unvented internal voids

D. Adhikari; D.M. Hepburn; B.G. Stewart

doi:10.1016/j.epsr.2013.02.012

PD characteristics and degradation in PET insulation with vented and unvented internal voids

D. Adhikari, D.M. Hepburn, B.G. Stewart

Electronic And Electrical Engineering

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

Voids in solid insulation give rise to partial discharge (PD). Factors affecting PD activity in internal voids include the type of gas contained, gas pressure and surface properties of the void. Identifying the presence of PD and understanding the measurable parameters may allow improved management of industrial
assets. This paper reports on quantifiable and measurable differences in PD activity and material degradation among voids which have vented and unvented channels. To investigate changes in PD activity with void characteristics experiments are carried out using artificial voids created from layered sections
of poly(ethylene terephthalate) (PET) polymer. One set of samples has a confined internal void; a second set of samples has a void with a channel having a closed end and a third set of samples has a vented channel connecting the void to the outer atmosphere. The results show measurable differences in PD activity and subsequent material degradation in the various voids.

Original language	Undefined/Unknown
Pages (from-to)	65-72
Number of pages	8
Journal	Electric Power Systems Research
Volume	100
Early online date	30 Mar 2013
DOIs	https://doi.org/10.1016/j.epsr.2013.02.012
Publication status	Published - 1 Jul 2013

Keywords

partial discharge
polymeric insulation
FTIR analysis
SEM-EDS analysis
AFM imaging
partial discharge repetition rate

Access to Document

10.1016/j.epsr.2013.02.012

Cite this

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title = "PD characteristics and degradation in PET insulation with vented and unvented internal voids",

abstract = "Voids in solid insulation give rise to partial discharge (PD). Factors affecting PD activity in internal voids include the type of gas contained, gas pressure and surface properties of the void. Identifying the presence of PD and understanding the measurable parameters may allow improved management of industrial assets. This paper reports on quantifiable and measurable differences in PD activity and material degradation among voids which have vented and unvented channels. To investigate changes in PD activity with void characteristics experiments are carried out using artificial voids created from layered sections of poly(ethylene terephthalate) (PET) polymer. One set of samples has a confined internal void; a second set of samples has a void with a channel having a closed end and a third set of samples has a vented channel connecting the void to the outer atmosphere. The results show measurable differences in PD activity and subsequent material degradation in the various voids.",

keywords = "partial discharge, polymeric insulation, FTIR analysis, SEM-EDS analysis, AFM imaging, partial discharge repetition rate",

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TY - JOUR

T1 - PD characteristics and degradation in PET insulation with vented and unvented internal voids

AU - Adhikari, D.

AU - Hepburn, D.M.

AU - Stewart, B.G.

PY - 2013/7/1

Y1 - 2013/7/1

N2 - Voids in solid insulation give rise to partial discharge (PD). Factors affecting PD activity in internal voids include the type of gas contained, gas pressure and surface properties of the void. Identifying the presence of PD and understanding the measurable parameters may allow improved management of industrial assets. This paper reports on quantifiable and measurable differences in PD activity and material degradation among voids which have vented and unvented channels. To investigate changes in PD activity with void characteristics experiments are carried out using artificial voids created from layered sections of poly(ethylene terephthalate) (PET) polymer. One set of samples has a confined internal void; a second set of samples has a void with a channel having a closed end and a third set of samples has a vented channel connecting the void to the outer atmosphere. The results show measurable differences in PD activity and subsequent material degradation in the various voids.

AB - Voids in solid insulation give rise to partial discharge (PD). Factors affecting PD activity in internal voids include the type of gas contained, gas pressure and surface properties of the void. Identifying the presence of PD and understanding the measurable parameters may allow improved management of industrial assets. This paper reports on quantifiable and measurable differences in PD activity and material degradation among voids which have vented and unvented channels. To investigate changes in PD activity with void characteristics experiments are carried out using artificial voids created from layered sections of poly(ethylene terephthalate) (PET) polymer. One set of samples has a confined internal void; a second set of samples has a void with a channel having a closed end and a third set of samples has a vented channel connecting the void to the outer atmosphere. The results show measurable differences in PD activity and subsequent material degradation in the various voids.

KW - partial discharge

KW - polymeric insulation

KW - FTIR analysis

KW - SEM-EDS analysis

KW - AFM imaging

KW - partial discharge repetition rate

U2 - 10.1016/j.epsr.2013.02.012

DO - 10.1016/j.epsr.2013.02.012

M3 - Article

SN - 0378-7796

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SP - 65

EP - 72

JO - Electric Power Systems Research

JF - Electric Power Systems Research

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