Research on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator

The surface discharge development processes of polluted porcelain insulators for power transmission lines are tightly related with the development of leakage current (LC), the characteristics of LC, the insulating condition, and discharge intensity of the insulator surface have an important signific...

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Autores principales:	Chunhua Fang, Yuning Tao, Jianguo Wang, Haixin You, Yan Cui, Mi Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	leakage current insulator pollution flashover flashover voltage transmission line General Works A
Acceso en línea:	https://doaj.org/article/3e2d5d2066994897b591e3410a8b6892
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spelling	oai:doaj.org-article:3e2d5d2066994897b591e3410a8b68922021-12-01T23:05:25ZResearch on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator2296-598X10.3389/fenrg.2021.798048https://doaj.org/article/3e2d5d2066994897b591e3410a8b68922021-12-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenrg.2021.798048/fullhttps://doaj.org/toc/2296-598XThe surface discharge development processes of polluted porcelain insulators for power transmission lines are tightly related with the development of leakage current (LC), the characteristics of LC, the insulating condition, and discharge intensity of the insulator surface have an important significance for revealing the contamination discharge state of insulators. In order to analyze the LC characteristics of porcelain insulators in the process of pollution flashover, artificial pollution flashover tests on porcelain insulators were conducted in the artificial fog cabinet, and the characteristics of LC waveforms in time-domain and frequency-domain were simultaneously measured and analyzed during the tests. The results indicated that the amplitude of LC, fundamental harmonic, the third harmonic, and fifth harmonic had a strong correlation, the maximum of LC(Im), the rate of total harmonics (THD), and the phase difference of fundamental harmonic (θ) were used for the representation of the characteristics of the LC waveform. The LC has the characteristics of high amplitude, low proportion harmonic, and small phase difference between the fundamental harmonic and voltage before the flashover occurrence. The test results provide effective reference for porcelain insulators in pollution flashover forecasting.Chunhua FangYuning TaoJianguo WangHaixin YouYan CuiMi ZhouFrontiers Media S.A.articleleakage currentinsulatorpollution flashoverflashover voltagetransmission lineGeneral WorksAENFrontiers in Energy Research, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	leakage current insulator pollution flashover flashover voltage transmission line General Works A
spellingShingle	leakage current insulator pollution flashover flashover voltage transmission line General Works A Chunhua Fang Yuning Tao Jianguo Wang Haixin You Yan Cui Mi Zhou Research on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator
description	The surface discharge development processes of polluted porcelain insulators for power transmission lines are tightly related with the development of leakage current (LC), the characteristics of LC, the insulating condition, and discharge intensity of the insulator surface have an important significance for revealing the contamination discharge state of insulators. In order to analyze the LC characteristics of porcelain insulators in the process of pollution flashover, artificial pollution flashover tests on porcelain insulators were conducted in the artificial fog cabinet, and the characteristics of LC waveforms in time-domain and frequency-domain were simultaneously measured and analyzed during the tests. The results indicated that the amplitude of LC, fundamental harmonic, the third harmonic, and fifth harmonic had a strong correlation, the maximum of LC(Im), the rate of total harmonics (THD), and the phase difference of fundamental harmonic (θ) were used for the representation of the characteristics of the LC waveform. The LC has the characteristics of high amplitude, low proportion harmonic, and small phase difference between the fundamental harmonic and voltage before the flashover occurrence. The test results provide effective reference for porcelain insulators in pollution flashover forecasting.
format	article
author	Chunhua Fang Yuning Tao Jianguo Wang Haixin You Yan Cui Mi Zhou
author_facet	Chunhua Fang Yuning Tao Jianguo Wang Haixin You Yan Cui Mi Zhou
author_sort	Chunhua Fang
title	Research on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator
title_short	Research on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator
title_full	Research on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator
title_fullStr	Research on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator
title_full_unstemmed	Research on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator
title_sort	research on leakage current waveform spectrum characteristics of artificial pollution porcelain insulator
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/3e2d5d2066994897b591e3410a8b6892
work_keys_str_mv	AT chunhuafang researchonleakagecurrentwaveformspectrumcharacteristicsofartificialpollutionporcelaininsulator AT yuningtao researchonleakagecurrentwaveformspectrumcharacteristicsofartificialpollutionporcelaininsulator AT jianguowang researchonleakagecurrentwaveformspectrumcharacteristicsofartificialpollutionporcelaininsulator AT haixinyou researchonleakagecurrentwaveformspectrumcharacteristicsofartificialpollutionporcelaininsulator AT yancui researchonleakagecurrentwaveformspectrumcharacteristicsofartificialpollutionporcelaininsulator AT mizhou researchonleakagecurrentwaveformspectrumcharacteristicsofartificialpollutionporcelaininsulator
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Research on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator

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