Modeling porous structure of oil-pressboard interface and its effect on electric field distribution
The oil-pressboard insulation is a typical composite insulation system widely used in the design and manufactory of large power apparatus. The implement of oil-pressboard insulation may lead to surface electrification and discharge at the interface under certain condition. It is of significant impor...
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Veröffentlicht in: | Journal of Central South University 2015, Vol.22 (1), p.338-343 |
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creator | 司马文霞 姜赤龙 毛文奇 唐信 |
description | The oil-pressboard insulation is a typical composite insulation system widely used in the design and manufactory of large power apparatus. The implement of oil-pressboard insulation may lead to surface electrification and discharge at the interface under certain condition. It is of significant importance to take an insight into the phenomenon occurring at the interface. Through experiment, the pressboard is found as a porous material. The interface changes abruptly from bulk pressboard to the bulk oil as a result of the porous structure. A new model is proposed which divides the interface into bulk oil region, transition region, and bulk pressboard region. The width of the transition region is decided according to the microtome figure. The effective permittivity of the transition region is calculated using a new model based on fractal theory. The model is validated and compared with previous calculation model. The effect of the existence of transition region on the electric field distribution is discussed. |
doi_str_mv | 10.1007/s11771-015-2527-5 |
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The implement of oil-pressboard insulation may lead to surface electrification and discharge at the interface under certain condition. It is of significant importance to take an insight into the phenomenon occurring at the interface. Through experiment, the pressboard is found as a porous material. The interface changes abruptly from bulk pressboard to the bulk oil as a result of the porous structure. A new model is proposed which divides the interface into bulk oil region, transition region, and bulk pressboard region. The width of the transition region is decided according to the microtome figure. The effective permittivity of the transition region is calculated using a new model based on fractal theory. The model is validated and compared with previous calculation model. 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South Univ</addtitle><addtitle>Journal of Central South University of Technology</addtitle><description>The oil-pressboard insulation is a typical composite insulation system widely used in the design and manufactory of large power apparatus. The implement of oil-pressboard insulation may lead to surface electrification and discharge at the interface under certain condition. It is of significant importance to take an insight into the phenomenon occurring at the interface. Through experiment, the pressboard is found as a porous material. The interface changes abruptly from bulk pressboard to the bulk oil as a result of the porous structure. A new model is proposed which divides the interface into bulk oil region, transition region, and bulk pressboard region. The width of the transition region is decided according to the microtome figure. The effective permittivity of the transition region is calculated using a new model based on fractal theory. The model is validated and compared with previous calculation model. The effect of the existence of transition region on the electric field distribution is discussed.</description><subject>Engineering</subject><subject>Metallic Materials</subject><subject>压板</subject><subject>多孔结构</subject><subject>建模</subject><subject>接口转换</subject><subject>有效介电常数</subject><subject>电场分布</subject><subject>绝缘系统</subject><subject>计算模型</subject><issn>2095-2899</issn><issn>2227-5223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kM1OxCAUhYnRxMk4D-COuDXVC5SWLs3Ev2SMG10TSqFiKozQxhmfXiYz0Z0rDpfz3UMOQucErghAfZ0IqWtSAOEF5bQu-BGaUboTlLLjrKHJL6JpTtEiJdcCI7RiVVPNkH4KnRmc7_E6xDAlnMY46XGKBgeLgxuKdTQptUHFDjs_mmiVNlj5fBsTNtYaPeLgsRmyiE5j68zQ4c7lRa6dRhf8GTqxakhmcTjn6PXu9mX5UKye7x-XN6tCM2BjQRTRSoMQreLWUpGnTQOKtBpsWStmoauAMCMs5xXXHdVUUZF_0AgBxDA2R5f7vV_KW-V7-R6m6HOi_Pb9tttsWmloLgkIlCS7yd6tY0gpGivX0X2ouJUE5K5Wua9VZkLuapU8M3TPpOz1vYl_Ef9BF4egt-D7z8z9JlUVq4GXJWc_qoaH6w</recordid><startdate>2015</startdate><enddate>2015</enddate><creator>司马文霞 姜赤龙 毛文奇 唐信</creator><general>Central South University</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>2015</creationdate><title>Modeling porous structure of oil-pressboard interface and its effect on electric field distribution</title><author>司马文霞 姜赤龙 毛文奇 唐信</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c303t-1a1cac088ba5ff28c30990a1bc0f47a3f0d6013e8f5565cd2c2a28eff98801e33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Engineering</topic><topic>Metallic Materials</topic><topic>压板</topic><topic>多孔结构</topic><topic>建模</topic><topic>接口转换</topic><topic>有效介电常数</topic><topic>电场分布</topic><topic>绝缘系统</topic><topic>计算模型</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>司马文霞 姜赤龙 毛文奇 唐信</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Journal of Central South University</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>司马文霞 姜赤龙 毛文奇 唐信</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modeling porous structure of oil-pressboard interface and its effect on electric field distribution</atitle><jtitle>Journal of Central South University</jtitle><stitle>J. Cent. South Univ</stitle><addtitle>Journal of Central South University of Technology</addtitle><date>2015</date><risdate>2015</risdate><volume>22</volume><issue>1</issue><spage>338</spage><epage>343</epage><pages>338-343</pages><issn>2095-2899</issn><eissn>2227-5223</eissn><abstract>The oil-pressboard insulation is a typical composite insulation system widely used in the design and manufactory of large power apparatus. The implement of oil-pressboard insulation may lead to surface electrification and discharge at the interface under certain condition. It is of significant importance to take an insight into the phenomenon occurring at the interface. Through experiment, the pressboard is found as a porous material. The interface changes abruptly from bulk pressboard to the bulk oil as a result of the porous structure. A new model is proposed which divides the interface into bulk oil region, transition region, and bulk pressboard region. The width of the transition region is decided according to the microtome figure. The effective permittivity of the transition region is calculated using a new model based on fractal theory. The model is validated and compared with previous calculation model. The effect of the existence of transition region on the electric field distribution is discussed.</abstract><cop>Heidelberg</cop><pub>Central South University</pub><doi>10.1007/s11771-015-2527-5</doi><tpages>6</tpages></addata></record> |
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source | Springer Nature - Complete Springer Journals; Alma/SFX Local Collection |
subjects | Engineering Metallic Materials 压板 多孔结构 建模 接口转换 有效介电常数 电场分布 绝缘系统 计算模型 |
title | Modeling porous structure of oil-pressboard interface and its effect on electric field distribution |
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