Article(id=1210227966282437312, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1210227961236681448, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2022.01.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1615478400000, receivedDateStr=2021-03-12, revisedDate=1618848000000, revisedDateStr=2021-04-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1766470432110, onlineDateStr=2025-12-23, pubDate=1642608000000, pubDateStr=2022-01-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766470432110, onlineIssueDateStr=2025-12-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766470432110, creator=13701087609, updateTime=1766470432110, updator=13701087609, issue=Issue{id=1210227961236681448, tenantId=1146029695717560320, journalId=1149653034449285133, year='2022', volume='55', issue='1', pageStart='1', pageEnd='112', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766470430907, creator=13701087609, updateTime=1766562962621, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210616067429364090, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1210227961236681448, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210616067429364091, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1210227961236681448, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=73, endPage=79, ext={EN=ArticleExt(id=1210227966542484170, articleId=1210227966282437312, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Influence of Insulation Parameters on Electric Field and Potential Distribution at Stator Bar End of Large Hydro-generator, columnId=1190369198472794288, journalTitle=Insulating Materials, columnName=Insulation Technology, runingTitle=null, highlight=null, articleAbstract=
A finite element simulating model of stator bar end was established by COMSOL software, and the influences of electrical properties parameters of insulating material on the electric field and potential distribution of bar end were analyzed. The results show that with the increase of relative permittivity of main insulation, the maximum electric field on stator bar end surface increases, therefore it is better to choose smaller relative permittivity of main insulating material. The resistivity of main insulation material has no significant effect on the maximum electric field on bar end surface. The relative permittivity of each anti corona layer has little effect on the maximum electric field on bar surface. It is better to choose larger nonlinear resistance coefficient of medium resistance anti corona layer. The nonlinear resistance coefficients of medium and high resistance anti corona layer have little effect on the maximum electric field on bar surface, and it is best to choose 1. The nonlinear resistance coefficient of high resistance anti corona layer has no effect on the maximum electric field on bar surface. The influence degree of initial resistivity of different anti corona layers on the maximum electric field of bar surface is different. Through partial correlation analysis, the influence degree of electrical properties parameters of insulating material on the maximum electric field at bar end is ranked, and the initial resistivity and nonlinear resistance coefficient of the medium resistance anti corona layer are the dominant factors.
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应用COMSOL软件建立了定子线棒端部的有限元仿真模型,分析了绝缘材料电性能参数对线棒端部表面电场及电位分布的影响。结果表明:随着主绝缘相对介电常数的增大,线棒端部表面最大电场增大,主绝缘材料的相对介电常数选择偏小为佳;主绝缘材料电阻率对线棒端部表面最大电场的影响不显著。各级防晕层的相对介电常数对线棒表面最大电场变化影响很小。中阻防晕层非线性电阻系数取较大值时为佳;中高阻防晕层非线性电阻系数对线棒表面最大电场影响很小,但取值为1时最佳;高阻防晕层非线性电阻系数对线棒表面最大电场基本没有影响。不同防晕层初始电阻率对线棒表面最大电场的影响程度不同,通过偏相关分析,得到绝缘材料电性能参数对端部电场最大值的影响程度排序,其中中阻防晕层的初始电阻率和非线性电阻系数为主导因素。
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李寅伟(1986-),男(汉族),山西朔州人,高级工程师,主要从事水电站的电气一次设计。
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李寅伟(1986-),男(汉族),山西朔州人,高级工程师,主要从事水电站的电气一次设计。
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李寅伟(1986-),男(汉族),山西朔州人,高级工程师,主要从事水电站的电气一次设计。
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3重庆大学 输配电装备及系统安全与新技术国家重点实验室,重庆 400044, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1210947811030471626, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, xref=3, ext=[AuthorCompanyExt(id=1210947811038860235, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, companyId=1210947811030471626, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3重庆大学 输配电装备及系统安全与新技术国家重点实验室,重庆 400044)])])], keywords=[Keyword(id=1210947812712386566, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, orderNo=1, keyword=stator bar end), Keyword(id=1210947812779495432, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, orderNo=2, keyword=finite element analysis), Keyword(id=1210947812842409994, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, orderNo=3, keyword=insulation parameters), Keyword(id=1210947812909518862, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, orderNo=4, keyword=electric field strength), Keyword(id=1210947812989210640, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, orderNo=5, keyword=potential distribution), Keyword(id=1210947813064708114, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, orderNo=1, keyword=定子线棒端部), Keyword(id=1210947813140205590, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, orderNo=2, keyword=有限元分析), Keyword(id=1210947813207314456, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, orderNo=3, keyword=绝缘参数), Keyword(id=1210947813316366362, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, orderNo=4, keyword=电场强度), Keyword(id=1210947813379280926, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, orderNo=5, keyword=电位分布)], refs=[Reference(id=1210947815887474780, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, doi=null, pmid=null, pmcid=null, year=2004, volume=30, issue=5, pageStart=23, pageEnd=24,49, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=吴鹏, 刘丽兵, 陈志勇, journalName=高电压技术, refType=null, unstructuredReference=吴鹏,刘丽兵,陈志勇,等.发电机定子线棒绝缘老化后不同部位参数比较[J].
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3State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China), AuthorCompanyExt(id=1210947811064026060, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, companyId=1210947811030471626, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3重庆大学 输配电装备及系统安全与新技术国家重点实验室,重庆 400044)])], figs=[ArticleFig(id=1210947813551247392, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Fig.1, caption=
Schematic diagram of an 18 kV stator bar end, figureFileSmall=XnnLolDD9wc+zn8EIbh2Sw==, figureFileBig=9D6AN/zMTyElilcqxCODRA==, tableContent=null), ArticleFig(id=1210947813630939169, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=图1, caption=
某18 kV定子线棒端部示意图, figureFileSmall=XnnLolDD9wc+zn8EIbh2Sw==, figureFileBig=9D6AN/zMTyElilcqxCODRA==, tableContent=null), ArticleFig(id=1210947813719019555, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Fig.2, caption=
Simulation model of stator bar end, figureFileSmall=AONmgRC1uROVtB5suhTpSA==, figureFileBig=yxV1M6pAtumLMtViZqpqdA==, tableContent=null), ArticleFig(id=1210947813781934117, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=图2, caption=
定子线棒端部仿真计算模型, figureFileSmall=AONmgRC1uROVtB5suhTpSA==, figureFileBig=yxV1M6pAtumLMtViZqpqdA==, tableContent=null), ArticleFig(id=1210947813853237287, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Fig.3, caption=
Influence of main insulation relative permittivity on the electric field distribution at stator bar end, figureFileSmall=ylJYh/IzfHGTUAySz7VEhg==, figureFileBig=R7hPnrhWx8ry/LRjirO3JQ==, tableContent=null), ArticleFig(id=1210947813911957545, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=图3, caption=
主绝缘相对介电常数对线棒端部电场分布的影响, figureFileSmall=ylJYh/IzfHGTUAySz7VEhg==, figureFileBig=R7hPnrhWx8ry/LRjirO3JQ==, tableContent=null), ArticleFig(id=1210947813983260715, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Fig.4, caption=
Influence of main insulation relative permittivity εrz on the potential distribution at stator bar end (ρz=1014 Ω·m), figureFileSmall=BiR1/HGpuIWw280qACMCIg==, figureFileBig=ZjY3/h1Y0SZ0GtGOku1gTQ==, tableContent=null), ArticleFig(id=1210947814046175277, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=图4, caption=
主绝缘相对介电常数εrz对线棒端部电位分布的影响(ρz=1014 Ω·m), figureFileSmall=BiR1/HGpuIWw280qACMCIg==, figureFileBig=ZjY3/h1Y0SZ0GtGOku1gTQ==, tableContent=null), ArticleFig(id=1210947814109089839, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Fig.5, caption=
Maximum electric field on the stator bar surface under the coordination of different anti-corona layer relative permittivity, figureFileSmall=3Ch+MomffVD/1T5qpSrcCQ==, figureFileBig=nF3x6684araCPno4NSRDSA==, tableContent=null), ArticleFig(id=1210947814176198705, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=图5, caption=
不同防晕层相对介电常数配合下线棒表面的最大电场, figureFileSmall=3Ch+MomffVD/1T5qpSrcCQ==, figureFileBig=nF3x6684araCPno4NSRDSA==, tableContent=null), ArticleFig(id=1210947814230724658, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Fig.6, caption=
Maximum electric field on the stator bar surface under the coordination of different anti-corona layer nonlinear resistance coefficient, figureFileSmall=LPDYYy5QEckJa9L5r595UQ==, figureFileBig=Cw7CJfABw6Fx+C780skYNw==, tableContent=null), ArticleFig(id=1210947814297833523, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=图6, caption=
不同防晕层非线性电阻系数配合下线棒表面的最大电场, figureFileSmall=LPDYYy5QEckJa9L5r595UQ==, figureFileBig=Cw7CJfABw6Fx+C780skYNw==, tableContent=null), ArticleFig(id=1210947814369136693, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Fig.7, caption=
Potential distribution of stator bar under different nonlinear resistance coefficient of middle-resistance layer, figureFileSmall=Bj7D/vq8g/HfzcgPMhQBMg==, figureFileBig=ek5Z3vASBfVPIR87DUILUA==, tableContent=null), ArticleFig(id=1210947814436245559, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=图7, caption=
不同中阻层非线性电阻系数下线棒表面电位分布, figureFileSmall=Bj7D/vq8g/HfzcgPMhQBMg==, figureFileBig=ek5Z3vASBfVPIR87DUILUA==, tableContent=null), ArticleFig(id=1210947814503354425, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Fig.8, caption=
Maximum electric field on the stator bar surface under different initial resistivity of anti-corona layer, figureFileSmall=aGcRJ1WdPExyTxxugpZplA==, figureFileBig=Bl4Cum6kFkE0niP7OLmvbw==, tableContent=null), ArticleFig(id=1210947814562074683, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=图8, caption=
不同防晕层初始电阻率配合下线棒表面最大电场, figureFileSmall=aGcRJ1WdPExyTxxugpZplA==, figureFileBig=Bl4Cum6kFkE0niP7OLmvbw==, tableContent=null), ArticleFig(id=1210947814633377853, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Fig.9, caption=
Potential distribution on the stator bar surface under different initial resistivity of middle resistance anti-corona-layer, figureFileSmall=erULhnHjpupeHPUMFQntJg==, figureFileBig=e5foFXKQb8cT1LhB3bxU5Q==, tableContent=null), ArticleFig(id=1210947814700486719, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=图9, caption=
不同中阻防晕层初始电阻率下线棒表面电位分布, figureFileSmall=erULhnHjpupeHPUMFQntJg==, figureFileBig=e5foFXKQb8cT1LhB3bxU5Q==, tableContent=null), ArticleFig(id=1210947814763401281, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Fig.10, caption=
Distribution of electric field on the stator bar surface under different initial resistivity of middle resistance anti-corona layer, figureFileSmall=UuhwouixLkUfdjQD+Tzizg==, figureFileBig=qyn/1Stsgojm5s6/Nk8+0g==, tableContent=null), ArticleFig(id=1210947814830510147, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=图10, caption=
不同中阻防晕层初始电阻率下线棒表面电场分布, figureFileSmall=UuhwouixLkUfdjQD+Tzizg==, figureFileBig=qyn/1Stsgojm5s6/Nk8+0g==, tableContent=null), ArticleFig(id=1210947814901813316, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Tab.1, caption=
Basic parameters of the dielectric materials in simulation, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料 | 相对介电常数 | 初始电阻率ρ0/(Ω·m) | 非线性电阻系数/(cm/kV) |
|---|
| 铜导体 | 1×1010 | 1.667×10-8 | — |
| 空气 | 1 | 1×1015 | — |
| 主绝缘 | 4 | 1×1014 | — |
| 低阻防晕层 | 25 | 1×103 | — |
| 中阻防晕层 | 25 | 1×106 | 1.5 |
| 中高阻防晕层 | 25 | 1×107 | 1.0 |
| 高阻防晕层 | 25 | 1×1010 | 0.5 |
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仿真中各介质材料的基本参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料 | 相对介电常数 | 初始电阻率ρ0/(Ω·m) | 非线性电阻系数/(cm/kV) |
|---|
| 铜导体 | 1×1010 | 1.667×10-8 | — |
| 空气 | 1 | 1×1015 | — |
| 主绝缘 | 4 | 1×1014 | — |
| 低阻防晕层 | 25 | 1×103 | — |
| 中阻防晕层 | 25 | 1×106 | 1.5 |
| 中高阻防晕层 | 25 | 1×107 | 1.0 |
| 高阻防晕层 | 25 | 1×1010 | 0.5 |
), ArticleFig(id=1210947815044419656, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Tab.2, caption=
Influence of main insulation material parameters on the maximum electric field at end surface, figureFileSmall=null, figureFileBig=null, tableContent=
| εrz | ρz/(Ω·m) |
|---|
| 1012 | 1013 | 1014 | 1015 | 1016 |
|---|
| 2 | 1.248 6 | 1.2487 | 1.248 7 | 1.248 7 | 1.248 7 |
| 4 | 1.417 7 | 1.411 7 | 1.402 0 | 1.402 0 | 1.402 0 |
| 6 | 1.574 1 | 1.574 0 | 1.574 0 | 1.574 0 | 1.574 0 |
| 8 | 1.703 3 | 1.703 1 | 1.703 0 | 1.703 0 | 1.703 0 |
), ArticleFig(id=1210947815107334218, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=表2, caption=
主绝缘参数对端部表面最大电场的影响
, figureFileSmall=null, figureFileBig=null, tableContent=
| εrz | ρz/(Ω·m) |
|---|
| 1012 | 1013 | 1014 | 1015 | 1016 |
|---|
| 2 | 1.248 6 | 1.2487 | 1.248 7 | 1.248 7 | 1.248 7 |
| 4 | 1.417 7 | 1.411 7 | 1.402 0 | 1.402 0 | 1.402 0 |
| 6 | 1.574 1 | 1.574 0 | 1.574 0 | 1.574 0 | 1.574 0 |
| 8 | 1.703 3 | 1.703 1 | 1.703 0 | 1.703 0 | 1.703 0 |
), ArticleFig(id=1210947815174443084, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Tab.3, caption=
Coordination of different anti-corona layer relative permittivity, figureFileSmall=null, figureFileBig=null, tableContent=
| 组别 | 防晕层相对介电常数 |
|---|
| 低阻 | 中阻 | 中高阻 | 高阻 | 高阻末端 |
|---|
| 1 | 10 | 25 | 25 | 25 | 25 |
| 2 | 25 | 25 | 25 | 25 | 25 |
| 3 | 50 | 25 | 25 | 25 | 25 |
| 4 | 25 | 10 | 25 | 25 | 25 |
| 5 | 25 | 50 | 25 | 25 | 25 |
| 6 | 25 | 25 | 10 | 25 | 25 |
| 7 | 25 | 25 | 50 | 25 | 25 |
| 8 | 25 | 25 | 25 | 10 | 25 |
| 9 | 25 | 25 | 25 | 50 | 25 |
| 10 | 25 | 25 | 25 | 25 | 10 |
| 11 | 25 | 25 | 25 | 25 | 50 |
), ArticleFig(id=1210947815258329166, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=表3, caption=
不同防晕层相对介电常数配合
, figureFileSmall=null, figureFileBig=null, tableContent=
| 组别 | 防晕层相对介电常数 |
|---|
| 低阻 | 中阻 | 中高阻 | 高阻 | 高阻末端 |
|---|
| 1 | 10 | 25 | 25 | 25 | 25 |
| 2 | 25 | 25 | 25 | 25 | 25 |
| 3 | 50 | 25 | 25 | 25 | 25 |
| 4 | 25 | 10 | 25 | 25 | 25 |
| 5 | 25 | 50 | 25 | 25 | 25 |
| 6 | 25 | 25 | 10 | 25 | 25 |
| 7 | 25 | 25 | 50 | 25 | 25 |
| 8 | 25 | 25 | 25 | 10 | 25 |
| 9 | 25 | 25 | 25 | 50 | 25 |
| 10 | 25 | 25 | 25 | 25 | 10 |
| 11 | 25 | 25 | 25 | 25 | 50 |
), ArticleFig(id=1210947815333826640, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Tab.4, caption=
Coordination of different anti-corona layer nonlinear resistance coefficient, figureFileSmall=null, figureFileBig=null, tableContent=
| 组别 | 非线性电阻系数β/(cm/kV) |
|---|
| 中阻β1 | 中高阻β2 | 高阻β3 |
|---|
| 1 | 1.5 | 1.0 | 0.5 |
| 2 | 1.0 | 1.0 | 0.5 |
| 3 | 0.5 | 1.0 | 0.5 |
| 4 | 1.5 | 1.5 | 0.5 |
| 5 | 1.5 | 1.0 | 0.5 |
| 6 | 1.5 | 0.5 | 0.5 |
| 7 | 1.5 | 1.0 | 1.5 |
| 8 | 1.5 | 1.0 | 1.0 |
| 9 | 1.5 | 1.0 | 0.5 |
), ArticleFig(id=1210947815405129810, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=表4, caption=
不同防晕层非线性电阻系数配合
, figureFileSmall=null, figureFileBig=null, tableContent=
| 组别 | 非线性电阻系数β/(cm/kV) |
|---|
| 中阻β1 | 中高阻β2 | 高阻β3 |
|---|
| 1 | 1.5 | 1.0 | 0.5 |
| 2 | 1.0 | 1.0 | 0.5 |
| 3 | 0.5 | 1.0 | 0.5 |
| 4 | 1.5 | 1.5 | 0.5 |
| 5 | 1.5 | 1.0 | 0.5 |
| 6 | 1.5 | 0.5 | 0.5 |
| 7 | 1.5 | 1.0 | 1.5 |
| 8 | 1.5 | 1.0 | 1.0 |
| 9 | 1.5 | 1.0 | 0.5 |
), ArticleFig(id=1210947815476432978, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Tab.5, caption=
Coordination of different anti-corona layer initial resistivity, figureFileSmall=null, figureFileBig=null, tableContent=
| 组别 | 防晕层初始电阻率/(Ω·m) |
|---|
| 低阻 | 中阻 | 中高阻 | 高阻 | 高阻末端 |
|---|
| 1 | 1×103 | 1×106 | 1×107 | 1×1010 | 5×1010 |
| 2 | 1×104 |
| 3 | 1×105 |
| 4 | 1×103 | 1×105 | 1×107 | 1×1010 | 5×1010 |
| 5 | 1×106 |
| 6 | 1×107 |
| 7 | 1×103 | 1×106 | 1×107 | 1×1010 | 5×1010 |
| 8 | 1×108 |
| 9 | 1×109 |
| 10 | 1×103 | 1×106 | 1×107 | 1×109 | 5×1010 |
| 11 | 5×109 |
| 12 | 1×1010 |
| 13 | 1×103 | 1×106 | 1×107 | 1×1010 | 5×1010 |
| 14 | 1×1011 |
| 15 | 5×1011 |
), ArticleFig(id=1210947815547736148, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=表5, caption=
不同防晕层初始电阻率配合
, figureFileSmall=null, figureFileBig=null, tableContent=
| 组别 | 防晕层初始电阻率/(Ω·m) |
|---|
| 低阻 | 中阻 | 中高阻 | 高阻 | 高阻末端 |
|---|
| 1 | 1×103 | 1×106 | 1×107 | 1×1010 | 5×1010 |
| 2 | 1×104 |
| 3 | 1×105 |
| 4 | 1×103 | 1×105 | 1×107 | 1×1010 | 5×1010 |
| 5 | 1×106 |
| 6 | 1×107 |
| 7 | 1×103 | 1×106 | 1×107 | 1×1010 | 5×1010 |
| 8 | 1×108 |
| 9 | 1×109 |
| 10 | 1×103 | 1×106 | 1×107 | 1×109 | 5×1010 |
| 11 | 5×109 |
| 12 | 1×1010 |
| 13 | 1×103 | 1×106 | 1×107 | 1×1010 | 5×1010 |
| 14 | 1×1011 |
| 15 | 5×1011 |
), ArticleFig(id=1210947815623233622, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=EN, label=Tab.6, caption=
Correlation between insulating material parameters and maximum electric field at the stator bar end, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 主绝缘εrz | 中阻防晕层β1 | 中高阻防晕层β2 | 低阻防晕层ρ1 | 中阻防晕层ρ2 |
|---|
| 偏相关系数γ | 0.105 | -0.38 | -0.018 | -0.009 | -0.472 |
| 显著性系数α | 0.313 | 0.034 | 0.467 | 0.483 | 0.01 |
| 性质 | 弱相关不显著 | 中等相关显著 | 无相关不显著 | 无相关不显著 | 中等相关显著 |
), ArticleFig(id=1210947815732285529, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1210227966282437312, language=CN, label=表6, caption=
绝缘材料参数与线棒端部最大电场的相关性
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 主绝缘εrz | 中阻防晕层β1 | 中高阻防晕层β2 | 低阻防晕层ρ1 | 中阻防晕层ρ2 |
|---|
| 偏相关系数γ | 0.105 | -0.38 | -0.018 | -0.009 | -0.472 |
| 显著性系数α | 0.313 | 0.034 | 0.467 | 0.483 | 0.01 |
| 性质 | 弱相关不显著 | 中等相关显著 | 无相关不显著 | 无相关不显著 | 中等相关显著 |
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