Mapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area

A fundamental parameter of polluted insulator online monitoring is the leakage current, which has already been shown to be well-related to the pollution discharge of insulators. In this article, in an effort to quantitatively reflect the discharge intensity and the discharge status by the leakage cu...

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Autores principales:	Chunhua Fang, Yuning Tao, Jianguo Wang, Can Ding, Li Huang, Mi Zhou, Yi Gu, Yali Wang
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	discharge arc leakage current mapping relation polluted insulator online monitoring General Works A
Acceso en línea:	https://doaj.org/article/63b440b749b0496eb425065f8e331311
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spelling	oai:doaj.org-article:63b440b749b0496eb425065f8e3313112021-11-12T06:04:47ZMapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area2296-598X10.3389/fenrg.2021.777230https://doaj.org/article/63b440b749b0496eb425065f8e3313112021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenrg.2021.777230/fullhttps://doaj.org/toc/2296-598XA fundamental parameter of polluted insulator online monitoring is the leakage current, which has already been shown to be well-related to the pollution discharge of insulators. In this article, in an effort to quantitatively reflect the discharge intensity and the discharge status by the leakage current, we carried out an experimental study on artificial pollution discharge of insulators. A high-speed photographic apparatus was utilized to capture the entire process of local arcs on a porcelain insulator surface, including the arc generation, the arc development, and the flashover, for which the associated leakage current of insulators was synchronously digitized. A comparative analysis of the relation between the two-dimensional discharge image and the leakage current waveform in the process of arc generation and development shows that if the arc area on the insulator surface is relatively small and the leakage current passes through zero, the arc might completely become extinct, whereas this phenomena will not occur if the arc area is larger. In addition, the amplitude of the discharge arc area is found to be roughly proportional to the square of leakage current over the range of leakage current amplitude from 0 to 150 mA. Our results can provide an important guidance for judgment of the discharge status and the discharge intensity on insulator surfaces using the leakage current of insulators.Chunhua FangYuning TaoJianguo WangCan DingLi HuangMi ZhouYi GuYali WangFrontiers Media S.A.articledischarge arcleakage currentmapping relationpolluted insulatoronline monitoringGeneral WorksAENFrontiers in Energy Research, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	discharge arc leakage current mapping relation polluted insulator online monitoring General Works A
spellingShingle	discharge arc leakage current mapping relation polluted insulator online monitoring General Works A Chunhua Fang Yuning Tao Jianguo Wang Can Ding Li Huang Mi Zhou Yi Gu Yali Wang Mapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area
description	A fundamental parameter of polluted insulator online monitoring is the leakage current, which has already been shown to be well-related to the pollution discharge of insulators. In this article, in an effort to quantitatively reflect the discharge intensity and the discharge status by the leakage current, we carried out an experimental study on artificial pollution discharge of insulators. A high-speed photographic apparatus was utilized to capture the entire process of local arcs on a porcelain insulator surface, including the arc generation, the arc development, and the flashover, for which the associated leakage current of insulators was synchronously digitized. A comparative analysis of the relation between the two-dimensional discharge image and the leakage current waveform in the process of arc generation and development shows that if the arc area on the insulator surface is relatively small and the leakage current passes through zero, the arc might completely become extinct, whereas this phenomena will not occur if the arc area is larger. In addition, the amplitude of the discharge arc area is found to be roughly proportional to the square of leakage current over the range of leakage current amplitude from 0 to 150 mA. Our results can provide an important guidance for judgment of the discharge status and the discharge intensity on insulator surfaces using the leakage current of insulators.
format	article
author	Chunhua Fang Yuning Tao Jianguo Wang Can Ding Li Huang Mi Zhou Yi Gu Yali Wang
author_facet	Chunhua Fang Yuning Tao Jianguo Wang Can Ding Li Huang Mi Zhou Yi Gu Yali Wang
author_sort	Chunhua Fang
title	Mapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area
title_short	Mapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area
title_full	Mapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area
title_fullStr	Mapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area
title_full_unstemmed	Mapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area
title_sort	mapping relation of leakage currents of polluted insulators and discharge arc area
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/63b440b749b0496eb425065f8e331311
work_keys_str_mv	AT chunhuafang mappingrelationofleakagecurrentsofpollutedinsulatorsanddischargearcarea AT yuningtao mappingrelationofleakagecurrentsofpollutedinsulatorsanddischargearcarea AT jianguowang mappingrelationofleakagecurrentsofpollutedinsulatorsanddischargearcarea AT canding mappingrelationofleakagecurrentsofpollutedinsulatorsanddischargearcarea AT lihuang mappingrelationofleakagecurrentsofpollutedinsulatorsanddischargearcarea AT mizhou mappingrelationofleakagecurrentsofpollutedinsulatorsanddischargearcarea AT yigu mappingrelationofleakagecurrentsofpollutedinsulatorsanddischargearcarea AT yaliwang mappingrelationofleakagecurrentsofpollutedinsulatorsanddischargearcarea
_version_	1718431173717262336

Mapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area

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