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Article(id=1198665000299626701, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198664995669110898, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2023.02.011, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1652284800000, receivedDateStr=2022-05-12, revisedDate=1655654400000, revisedDateStr=2022-06-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1763713606190, onlineDateStr=2025-11-21, pubDate=1676822400000, pubDateStr=2023-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763713606190, onlineIssueDateStr=2025-11-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763713606190, creator=13701087609, updateTime=1763713606190, updator=13701087609, issue=Issue{id=1198664995669110898, tenantId=1146029695717560320, journalId=1149653034449285133, year='2023', volume='56', issue='2', pageStart='1', pageEnd='117', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763713605086, creator=13701087609, updateTime=1766563346770, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210617678729966036, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198664995669110898, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210617678729966037, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198664995669110898, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=74, endPage=78, ext={EN=ArticleExt(id=1198665000622588119, articleId=1198665000299626701, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Application study of domestic corona-resistant polyimide film on inverter-fed traction motor, columnId=1198664996516360309, journalTitle=Insulating Materials, columnName=Polyimide Film Special Issue, runingTitle=null, highlight=null, articleAbstract=

The performance of domestic corona-resistant polyimide film as well as the corona-resistant film magnet wire was compared with that of the similar imported products, and then the reliability of domestic corona-resistant film magnet wire in the application process was discussed. The results show that the conventional properties of domestic corona-resistant film and its magnet wire are comparable to those of similar imported products, and the corona resistance performance and initial partial discharge voltage of domestic corona-resistant film magnet wire are better than those of similar imported products. Domestic corona-resistant film magnet wire has excellent manufacturability in the coil forming process, which meets the technical requirements of inverter traction motor applications.

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通过对比国产耐电晕聚酰亚胺薄膜及其电磁线与同类进口产品的性能，探讨了国产耐电晕薄膜电磁线在应用过程中的可靠性。结果表明：国产耐电晕薄膜及其电磁线的常规性能与同类进口产品性能相当，国产耐电晕薄膜电磁线的耐电晕性能及局部放电起始电压优于同类进口产品，电磁线在线圈成型过程中具备优异的工艺性，满足变频牵引电机的应用要求。

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王文进（1980-），男（汉族），湖北仙桃人，高级工程师，主要从事电机绝缘材料及绝缘结构设计的研究。

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王文进（1980-），男（汉族），湖北仙桃人，高级工程师，主要从事电机绝缘材料及绝缘结构设计的研究。

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王文进（1980-），男（汉族），湖北仙桃人，高级工程师，主要从事电机绝缘材料及绝缘结构设计的研究。

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unstructuredReference=何志斌,袁舜齐,汤昌丹.一种耐电晕聚酰亚胺-聚全氟乙丙烯复合薄膜及其制备方法:CN103832033B[P].2016-08-17., articleTitle=一种耐电晕聚酰亚胺-聚全氟乙丙烯复合薄膜及其制备方法, refAbstract=null), Reference(id=1210935054767886764, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[9], rfOrder=8, authorNames=关怀民, 童跃进, 罗贝贝, journalName=null, refType=null, unstructuredReference=关怀民,童跃进,罗贝贝.一种耐电晕聚酰亚胺/二氧化硅纳米复合薄膜及其制备方法:CN103554533B[P].2016-08-17., articleTitle=一种耐电晕聚酰亚胺/二氧化硅纳米复合薄膜及其制备方法, refAbstract=null), Reference(id=1210935054839189934, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[10], rfOrder=9, authorNames=张步峰, 廖波, 杨军, journalName=null, refType=null, unstructuredReference=张步峰,廖波,杨军,等.一种耐电晕聚酰亚胺复合薄膜及其制备方法:CN107856383B[P].2020-04-14., articleTitle=一种耐电晕聚酰亚胺复合薄膜及其制备方法, refAbstract=null), Reference(id=1210935054923076016, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, doi=null, pmid=null, pmcid=null, year=2012, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[11], rfOrder=10, authorNames=丁孟贤, journalName=聚酰亚胺-化学、结构与性能的关系及材料, refType=null, unstructuredReference=丁孟贤.聚酰亚胺-化学、结构与性能的关系及材料[M].第二版.北京:科学出版社,2012年., articleTitle=null, refAbstract=null), Reference(id=1210935055027933619, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, doi=null, pmid=null, pmcid=null, year=2018, volume=45, issue=2, pageStart=102, pageEnd=105, url=null, language=null, rfNumber=[12], rfOrder=11, authorNames=张生德, 汪双灿, 赵超, journalName=电机与控制应用, refType=null, unstructuredReference=张生德,汪双灿,赵超.电机绝缘系统在高频冲击下局部放电试验研究[J].电机与控制应用,2018,45(2):102-105., articleTitle=电机绝缘系统在高频冲击下局部放电试验研究, refAbstract=null), Reference(id=1210935055128596917, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, doi=null, pmid=null, pmcid=null, year=2018, volume=51, issue=8, pageStart=37, pageEnd=42, url=null, language=null, rfNumber=[13], rfOrder=12, authorNames=王剑, 周凯, 王鹏, journalName=绝缘材料, refType=null, unstructuredReference=王剑,周凯,王鹏,等.重复脉冲电压上升时间对变频电机绝缘局部放电起始电压影响研究[J].绝缘材料,2018,51(8):37-42., articleTitle=重复脉冲电压上升时间对变频电机绝缘局部放电起始电压影响研究, refAbstract=null)], funds=[Fund(id=1210935053975163284, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, awardId=SQ2021YFB3800166, language=CN, fundingSource=国家重点研发计划项目(SQ2021YFB3800166), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1210935048996524239, tenantId=1146029695717560320, journalId=1149653034449285133, 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项目T/CEEIA 438—2020技术指标进口耐电晕薄膜国产耐电晕薄膜
厚度/μm23～272525
拉伸强度/MPa纵向≥135182223
横向166235
断裂伸长率/%纵向≥4067119
横向76119
拉伸模量/GPa—3.84.0
交流电气强度/(kV/mm)≥220308297
相对电容率(23℃，50 Hz)3.1～3.93.193.13
介质损耗因数(23℃，50 Hz)≤5.0×10-31.74×10-32.33×10-3
体积电阻率(200℃)/(Ω·m)≥1.0×10115.1×10117.8×1012
表面电阻率(200℃)/Ω≥1.0×10133.6×10152.6×1015
耐电晕时间/min≥303191
), ArticleFig(id=1210935053299880321, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, language=CN, label=表1, caption=

耐电晕薄膜的常规性能

, figureFileSmall=null, figureFileBig=null, tableContent=
项目T/CEEIA 438—2020技术指标进口耐电晕薄膜国产耐电晕薄膜
厚度/μm23～272525
拉伸强度/MPa纵向≥135182223
横向166235
断裂伸长率/%纵向≥4067119
横向76119
拉伸模量/GPa—3.84.0
交流电气强度/(kV/mm)≥220308297
相对电容率(23℃，50 Hz)3.1～3.93.193.13
介质损耗因数(23℃，50 Hz)≤5.0×10-31.74×10-32.33×10-3
体积电阻率(200℃)/(Ω·m)≥1.0×10115.1×10117.8×1012
表面电阻率(200℃)/Ω≥1.0×10133.6×10152.6×1015
耐电晕时间/min≥303191
), ArticleFig(id=1210935053375377798, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, language=EN, label=Tab.2, caption=General properties of corona-resistant film magnet wire, figureFileSmall=null, figureFileBig=null, tableContent=
检测项目电磁线订货技术条件指标要求试验结果
进口耐电晕薄膜电磁线国产耐电晕薄膜电磁线
拉伸附着性/Mm绝缘层失去附着性的长度≤6.30.50.3
击穿电压/kV宽边弯曲，≥5 kV8.7,8.5,7.9,8.3,8.18.4,8.7,8.0,8.5,8.2
窄边弯曲，≥5 kV7.9,8.3,7.8,8.1,8.08.2,8.4,8.5,7.9,8.5
热冲击后击穿电压/kV≥2.5 kV5.1,5.3,5.15.3,5.6,5.5
), ArticleFig(id=1210935053467652486, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, language=CN, label=表2, caption=

耐电晕薄膜电磁线的常规性能

, figureFileSmall=null, figureFileBig=null, tableContent=
检测项目电磁线订货技术条件指标要求试验结果
进口耐电晕薄膜电磁线国产耐电晕薄膜电磁线
拉伸附着性/Mm绝缘层失去附着性的长度≤6.30.50.3
击穿电压/kV宽边弯曲，≥5 kV8.7,8.5,7.9,8.3,8.18.4,8.7,8.0,8.5,8.2
窄边弯曲，≥5 kV7.9,8.3,7.8,8.1,8.08.2,8.4,8.5,7.9,8.5
热冲击后击穿电压/kV≥2.5 kV5.1,5.3,5.15.3,5.6,5.5
), ArticleFig(id=1210935053547344264, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, language=EN, label=Tab.3, caption=Breakdown voltage of the magnet wire at the coil nose position, figureFileSmall=null, figureFileBig=null, tableContent=
试样序号
1234567
国产耐电晕薄膜电磁线1#线圈8.38.186.86.87.86.6
2#线圈7.18.26.77.67.58.57.6
3#线圈7.87.97.28.37.26.97.5
进口耐电晕薄膜电磁线1#线圈8.688.36.56.37.36.1
2#线圈8.27.26.17.57.68.27.6
3#线圈7.38.77.58.37.16.36.0
), ArticleFig(id=1210935053618647435, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, language=CN, label=表3, caption=

线圈鼻部位置电磁线的击穿电压

, figureFileSmall=null, figureFileBig=null, tableContent=
试样序号
1234567
国产耐电晕薄膜电磁线1#线圈8.38.186.86.87.86.6
2#线圈7.18.26.77.67.58.57.6
3#线圈7.87.97.28.37.26.97.5
进口耐电晕薄膜电磁线1#线圈8.688.36.56.37.36.1
2#线圈8.27.26.17.57.68.27.6
3#线圈7.38.77.58.37.16.36.0
), ArticleFig(id=1210935053723505036, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, language=EN, label=Tab.4, caption=Test results of motor, figureFileSmall=null, figureFileBig=null, tableContent=
定子工序试验项点公司电机产品技术指标要求进口耐电晕薄膜样机国产耐电晕薄膜样机
嵌线后绝缘电阻/MΩ≥200317325
匝间耐压8 500 V，1 min合格合格
对地耐压DC 8 500 V，3 min合格合格
并头后绝缘电阻/MΩ≥200261289
匝间耐压8 000 V，1 min合格合格
对地耐压DC 8 500 V，3 min合格合格
浸漆后绝缘电阻/MΩ≥10021 20019 300
匝间耐压8 000 V，1 min合格合格
对地耐压AC 4 600 V，1 min合格合格
), ArticleFig(id=1210935053815779728, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198665000299626701, language=CN, label=表4, caption=

样机试验结果

, figureFileSmall=null, figureFileBig=null, tableContent=
定子工序试验项点公司电机产品技术指标要求进口耐电晕薄膜样机国产耐电晕薄膜样机
嵌线后绝缘电阻/MΩ≥200317325
匝间耐压8 500 V，1 min合格合格
对地耐压DC 8 500 V，3 min合格合格
并头后绝缘电阻/MΩ≥200261289
匝间耐压8 000 V，1 min合格合格
对地耐压DC 8 500 V，3 min合格合格
浸漆后绝缘电阻/MΩ≥10021 20019 300
匝间耐压8 000 V，1 min合格合格
对地耐压AC 4 600 V，1 min合格合格
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国产耐电晕聚酰亚胺薄膜在变频牵引电机上的应用研究
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王文进 , 陈红生 , 梁西川 , 薛长志
绝缘材料 | 聚酰亚胺薄膜专题 2023,56(2): 74-78
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绝缘材料 | 聚酰亚胺薄膜专题 2023, 56(2): 74-78
国产耐电晕聚酰亚胺薄膜在变频牵引电机上的应用研究
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王文进, 陈红生, 梁西川, 薛长志
作者信息
  • 中车株洲电机有限公司 电气绝缘技术湖南省重点实验室，湖南 株洲 412000

    • 王文进（1980-），男（汉族），湖北仙桃人，高级工程师，主要从事电机绝缘材料及绝缘结构设计的研究。

Application study of domestic corona-resistant polyimide film on inverter-fed traction motor
Wenjin WANG, Hongsheng CHEN, Xichuan LIANG, Changzhi XUE
Affiliations
  • Hunan Key Laboratory of Electrical Insulation Technology, CRRC Zhuzhou Electric Co., Ltd., Zhuzhou 412000, China
出版时间: 2023-02-20 doi: 10.16790/j.cnki.1009-9239.im.2023.02.011
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摘要
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通过对比国产耐电晕聚酰亚胺薄膜及其电磁线与同类进口产品的性能，探讨了国产耐电晕薄膜电磁线在应用过程中的可靠性。结果表明：国产耐电晕薄膜及其电磁线的常规性能与同类进口产品性能相当，国产耐电晕薄膜电磁线的耐电晕性能及局部放电起始电压优于同类进口产品，电磁线在线圈成型过程中具备优异的工艺性，满足变频牵引电机的应用要求。

耐电晕聚酰亚胺薄膜  /  变频牵引电机  /  耐电晕性能  /  耐热性  /  局部放电

The performance of domestic corona-resistant polyimide film as well as the corona-resistant film magnet wire was compared with that of the similar imported products, and then the reliability of domestic corona-resistant film magnet wire in the application process was discussed. The results show that the conventional properties of domestic corona-resistant film and its magnet wire are comparable to those of similar imported products, and the corona resistance performance and initial partial discharge voltage of domestic corona-resistant film magnet wire are better than those of similar imported products. Domestic corona-resistant film magnet wire has excellent manufacturability in the coil forming process, which meets the technical requirements of inverter traction motor applications.

corona-resistant polyimide film  /  inverter-fed traction motor  /  corona resistance  /  thermal resistance  /  partial discharge
王文进, 陈红生, 梁西川, 薛长志. 国产耐电晕聚酰亚胺薄膜在变频牵引电机上的应用研究. 绝缘材料, 2023 , 56 (2) : 74 -78 . DOI: 10.16790/j.cnki.1009-9239.im.2023.02.011
Wenjin WANG, Hongsheng CHEN, Xichuan LIANG, Changzhi XUE. Application study of domestic corona-resistant polyimide film on inverter-fed traction motor[J]. Insulating Materials, 2023 , 56 (2) : 74 -78 . DOI: 10.16790/j.cnki.1009-9239.im.2023.02.011
正文
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0 引言
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变频牵引电机具有节能、结构简单、调速方便等优点，其安全性和可靠性直接影响动车的运行。变频调速牵引电机受PWM逆变器控制，由于电机受到逆变器输出的高频、快速变化电压的冲击，其绝缘受到电应力的影响，电机绕组易产生局部放电，从而加速变频电机绝缘劣化，造成绝缘过早失效[1-4]。
为保障变频牵引电机的长期稳定运行，对绝缘结构及材料提出了更高要求。美国杜邦公司于20世纪90年代开发出耐电晕聚酰亚胺薄膜（型号为Kapton@ CR），日本钟渊公司也于2005年左右开发了耐电晕聚酰亚胺薄膜产品（型号为Apical@ CR），这两款耐电晕聚酰亚胺薄膜（以下简称耐电晕薄膜）能大幅提高电机匝间绝缘的耐电晕放电能力，延长绝缘结构老化寿命[5-6]，已被广泛应用于变频牵引电机绝缘。但耐电晕薄膜作为变频牵引电机匝间绝缘的关键材料，目前还没实现批量国产化替代，长期以来仍依赖进口。
为打破国外公司在高端聚酰亚胺薄膜领域的垄断，国内不少薄膜专业生产厂家和应用企业以自主研发为使命，积极开展变频牵引电机用耐电晕薄膜的国产化应用研究工作，经过多年的发展，已经取得了重大进展[7-9]。中车株洲电机有限公司联合中车内部配套聚酰亚胺薄膜制造企业开展了耐电晕聚酰亚胺薄膜的国产化研究，并取得了成功[10]。本研究从耐电晕薄膜性能、电磁线性能、线圈成型工艺性等方面对比了国产耐电晕薄膜与同类进口薄膜的综合性能，为变频牵引电机的批量应用提供参考。
1 试验
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1.1 耐电晕薄膜性能测试
耐电晕薄膜的常规性能按GB/T 13542.2—2009《电气绝缘用聚酰亚胺薄膜》进行检测。薄膜的耐电晕性能按T/CEEIA 438—2020《电气绝缘用聚酰亚胺薄膜技术要求》进行检测，测试条件：脉冲波形及极性为双极性对称方波，脉冲频率为20 kHz，脉冲上升沿时间（负载）为100 ns，脉冲占空比为50%，脉冲电压（UP-P）为2.0 kV，温度为室温。薄膜热老化性能按GB/T 11026.1—2003《电气绝缘材料 耐热性 第1部分 老化程序和试验结果的评定》进行检测，选取中温点280℃，对薄膜进行1 000 h热老化试验，将薄膜的拉伸强度和电气强度作为评价指标。
1.2 耐电晕薄膜电磁线性能测试
委托电磁线生产厂家制备耐电晕薄膜电磁线，采用的耐电晕薄膜厚度为0.038 mm，薄膜叠包率为53%，电磁线的导体尺寸为2.5 mm×6.3 mm，标称的双边绝缘厚度为0.21 mm。
电磁线的常规性能按GB/T 4074—2008《绕组线试验方法》要求进行检测。热冲击性能：将电磁线的窄边弯曲，进行10个周期的试验，每个周期试验包括在240℃的烘箱中烘焙2 h，取出试样冷却至室温。
电磁线的耐电晕性能按GB/T 21707—2018《变频调速专用三相异步电动机绝缘规范》进行检测，试样示意图见图1。有间隙结构试样的距离为0.5 mm。测试条件：脉冲波形及极性为双极性对称方波，脉冲频率为5 kHz，脉冲上升沿时间（负载）为100 ns，脉冲占空比为50%，脉冲电压（UP-P）为6.0 kV，温度为200℃。
电磁线的局部放电性能在重复方波电压下测试，借助重复方波测试系统完成，试验设备接线示意图见图2。
1.3 耐电晕薄膜电磁线应用性能
将耐电晕薄膜电磁线绕梭、涨形，制得线圈如图3所示。检测线圈鼻部每匝电磁线的击穿电压，定量分析电磁线绝缘层的受损情况。
1.4 样机验证
按照电机产品正常工艺流程完成某型号电机的制备，在生产工序中进行相对应的绝缘性能检测。
2 结果与分析
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2.1 耐电晕薄膜性能
2.1.1 常规性能
国产耐电晕薄膜和进口耐电晕薄膜的常规性能试验结果见表1。
从表1可以看出，国产耐电晕薄膜的耐电晕性能优于进口耐电晕薄膜，同时具备优异的拉伸强度及断裂伸长率。国产耐电晕薄膜的力学性能明显优于进口耐电晕薄膜，原因与制备薄膜的亚胺化方式有关。国产耐电晕薄膜采用化学亚胺化法制备，而进口耐电晕薄膜采用热亚胺化法[11]。聚酰亚胺的两种亚胺化路线如图4所示，在热亚胺化法中，加热前期为聚酰胺酸的亚胺化和断链反应同步进行，加热后期为聚酰胺酸的亚胺化与端基重聚合（恢复分子量）同步进行，不仅会导致分子结构不均匀，而且还会因为“热亚胺化动力学中断”现象使得亚胺化程度受限。在化学亚胺化法中，首先是聚酰胺酸的羧酸基团由于生成混合酸酐被封锁，不会出现热亚胺化过程中的分子量下降和平衡化，此外还能避免水解反应，因此更利于获得均匀一致的高分子聚合物，从而使薄膜具备优异的力学性能。
2.1.2 热老化性能
国产耐电晕薄膜和进口耐电晕薄膜热老化过程中，拉伸强度和电气强度变化分别如图5和图6所示。从图5～6可以看出，两款耐电晕薄膜的性能下降趋势接近，表明两者的耐热性和热稳定性水平相当，但在相同老化条件下，国产耐电晕薄膜的性能绝对值更高。
2.2 电磁线性能
2.2.1 常规性能
耐电晕薄膜电磁线的常规性能见表2，从表2可以看出，国产耐电晕薄膜电磁线的拉伸附着性、击穿电压、热冲击性能与进口耐电晕薄膜电磁线水平相当。
2.2.2 耐电晕性能
基于电机中线圈的电磁线相邻两匝间可能存在两种不同结构：槽内直线部分的无间隙结构和端部的有间隙结构，对耐电晕薄膜电磁线开展无间隙结构和有间隙结构的耐电晕寿命分析，结果如图7所示。
从图7可以看出，对于同一种耐电晕薄膜电磁线，有间隙结构的耐电晕寿命均比无间隙结构的高；对于相同结构试样，国产耐电晕薄膜电磁线的耐电晕寿命均高于进口耐电晕薄膜电磁线，这与两种薄膜的耐电晕性能趋势一致。
2.2.3 局部放电性能
对比测试了10 kHz高频下国产耐电晕薄膜电磁线和进口耐电晕薄膜电磁线的局部放电起始电压（PDIV）值，试验结果见图8。从图8可以看出，在同等条件下，方波脉冲电源的上升沿时间越小，电磁线的PDIV会越低；同等条件下国产耐电晕薄膜电磁线的PDIV高于进口耐电晕薄膜电磁线。
研究表明，变频器与变频电机的阻抗不匹配会导致电机端部产生过电压，此过电压在变频电机的定子绕组中分布不均匀，当过电压大于局部放电起始电压的时候，将可能出现局部放电现象，局部放电会使得变频电机绝缘材料不断破坏，从而导致绝缘失效[12-13]。
2.3 耐电晕薄膜电磁线应用性能
考虑在线圈涨形过程中，线圈两端鼻部的形变较大，绝缘层挤压受力也较大，通过检测线圈鼻部电磁线的击穿电压来定量分析绝缘层的受损情况。分别采用国产耐电晕薄膜电磁线和进口耐电晕薄膜电磁线制备相同线圈，对其鼻部位置的电磁线的击穿电压进行检测，试验结果见表3，统计结果见图9。从图9可以看出，国产耐电晕薄膜电磁线试制的线圈鼻部击穿电压极差为1.7，低于进口耐电晕薄膜电磁线试制的线圈鼻部击穿电压极差2.7，表明国产耐电晕薄膜具备优异的线圈成型工艺性，完全满足牵引电机的应用要求。
2.4 样机验证
样机试验结果见表4。从表4可以看出，采用国产进口耐电晕薄膜和耐电晕薄膜制备的样机均满足各项性能指标要求。
3 结论
收起
（1）国产耐电晕薄膜相比进口耐电晕薄膜，具备更好的力学性能、耐电晕性能以及耐热性能。
（2）国产耐电晕薄膜电磁线与进口耐电晕薄膜电磁线的常规性能相当，且具备更高的耐电晕寿命和PDIV值。
（3）国产耐电晕薄膜电磁线具备优异的线圈成型工艺性，由其制备的样机各项性能完全满足指标要求。
基金
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  • 国家重点研发计划项目(SQ2021YFB3800166)
文献
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2023年第56卷第2期
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文章信息
doi: 10.16790/j.cnki.1009-9239.im.2023.02.011
  • 接收时间：2022-05-12
  • 首发时间：2025-11-21
  • 出版时间：2023-02-20
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  • 收稿日期：2022-05-12
  • 修回日期：2022-06-20
基金
国家重点研发计划项目(SQ2021YFB3800166)
作者信息
    中车株洲电机有限公司 电气绝缘技术湖南省重点实验室，湖南 株洲 412000
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2种不同金属材料的力学参数
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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