Effect of Moisture on PD Characteristics of Oil－ paper Insulation in Complex Electric Field
In order to study the effect of moisture on PD characteristics for oil-paper insulation in complexelectric field，PD tests with different moistures were carried out under the typical electric-field of oil-paper insulation. The PD characteristics under needle-plane electrodes and plane-plane electrode...
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| Format: | Article |
| Language: | zho |
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Harbin University of Science and Technology Publications
2018-12-01
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| Series: | Journal of Harbin University of Science and Technology |
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| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1910 |
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| author | LIU Qing-song DENG Jun CHI Ming-he CHEN Qing-guo |
| author_facet | LIU Qing-song DENG Jun CHI Ming-he CHEN Qing-guo |
| author_sort | LIU Qing-song |
| collection | DOAJ |
| description | In order to study the effect of moisture on PD characteristics for oil-paper insulation in complexelectric field，PD tests with different moistures were carried out under the typical electric-field of oil-paper insulation. The PD characteristics under needle-plane electrodes and plane-plane electrodes were obtained sepratedly in complex electric field with different moistures. The result shows that DC content has a great effect on the inception voltage and PD volume. All the PD volume grow up with the voltage rises under different moisture. In severe non-uniform electric field，PD volume in high moisture is always larger than the one in low moisture or equal to it. In uniform electric field，the PD curve in high moisture crosses with the one in low moisture. Via analyzing， it is concluded that the conductivity in oil is increased by moisture，which makes the space charge disappeared easier from oil-water interface，and then enhances the PD volume. There may be a bubble combination defects PD model in liquid dielectrics，besides a classic bubble defects PD model. The bubble combination maybe the major reason which results in the PD curves in high and low moisture crossing over under plane-plane electrodes. |
| format | Article |
| id | doaj-art-9d4e8908a82a43a2b57dade83e1ff141 |
| institution | OA Journals |
| issn | 1007-2683 |
| language | zho |
| publishDate | 2018-12-01 |
| publisher | Harbin University of Science and Technology Publications |
| record_format | Article |
| series | Journal of Harbin University of Science and Technology |
| spelling | doaj-art-9d4e8908a82a43a2b57dade83e1ff1412025-08-20T02:24:42ZzhoHarbin University of Science and Technology PublicationsJournal of Harbin University of Science and Technology1007-26832018-12-012306828710.15938/j.jhust.2018.06.015Effect of Moisture on PD Characteristics of Oil－ paper Insulation in Complex Electric FieldLIU Qing-song0DENG Jun1CHI Ming-he2CHEN Qing-guo3Maintenance ＆ Test Center，CSG EHV Power Transmission Company，Guangzhou 510663，ChinaMaintenance ＆ Test Center，CSG EHV Power Transmission Company，Guangzhou 510663，ChinaKey Laboratory of Engineering Dielectrics and Its Application，MOE，Harbin University of Science and Technology，Harbin 150080，ChinaKey Laboratory of Engineering Dielectrics and Its Application，MOE，Harbin University of Science and Technology，Harbin 150080，ChinaIn order to study the effect of moisture on PD characteristics for oil-paper insulation in complexelectric field，PD tests with different moistures were carried out under the typical electric-field of oil-paper insulation. The PD characteristics under needle-plane electrodes and plane-plane electrodes were obtained sepratedly in complex electric field with different moistures. The result shows that DC content has a great effect on the inception voltage and PD volume. All the PD volume grow up with the voltage rises under different moisture. In severe non-uniform electric field，PD volume in high moisture is always larger than the one in low moisture or equal to it. In uniform electric field，the PD curve in high moisture crosses with the one in low moisture. Via analyzing， it is concluded that the conductivity in oil is increased by moisture，which makes the space charge disappeared easier from oil-water interface，and then enhances the PD volume. There may be a bubble combination defects PD model in liquid dielectrics，besides a classic bubble defects PD model. The bubble combination maybe the major reason which results in the PD curves in high and low moisture crossing over under plane-plane electrodes.https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1910converter transformeroil-pressboard insulationcomplex electric fieldmoisturepartial dis-charge |
| spellingShingle | LIU Qing-song DENG Jun CHI Ming-he CHEN Qing-guo Effect of Moisture on PD Characteristics of Oil－ paper Insulation in Complex Electric Field Journal of Harbin University of Science and Technology converter transformer oil-pressboard insulation complex electric field moisture partial dis-charge |
| title | Effect of Moisture on PD Characteristics of Oil－ paper Insulation in Complex Electric Field |
| title_full | Effect of Moisture on PD Characteristics of Oil－ paper Insulation in Complex Electric Field |
| title_fullStr | Effect of Moisture on PD Characteristics of Oil－ paper Insulation in Complex Electric Field |
| title_full_unstemmed | Effect of Moisture on PD Characteristics of Oil－ paper Insulation in Complex Electric Field |
| title_short | Effect of Moisture on PD Characteristics of Oil－ paper Insulation in Complex Electric Field |
| title_sort | effect of moisture on pd characteristics of oil paper insulation in complex electric field |
| topic | converter transformer oil-pressboard insulation complex electric field moisture partial dis-charge |
| url | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1910 |
| work_keys_str_mv | AT liuqingsong effectofmoistureonpdcharacteristicsofoilpaperinsulationincomplexelectricfield AT dengjun effectofmoistureonpdcharacteristicsofoilpaperinsulationincomplexelectricfield AT chiminghe effectofmoistureonpdcharacteristicsofoilpaperinsulationincomplexelectricfield AT chenqingguo effectofmoistureonpdcharacteristicsofoilpaperinsulationincomplexelectricfield |