Article(id=1304922168031207922, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921585991836085, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2026.08.015, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1756569600000, receivedDateStr=2025-08-31, revisedDate=1762185600000, revisedDateStr=2025-11-04, acceptedDate=null, acceptedDateStr=null, onlineDate=1789047289139, onlineDateStr=2026-09-10, pubDate=1787155200000, pubDateStr=2026-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789047289139, onlineIssueDateStr=2026-09-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789047289139, creator=13701087609, updateTime=1789047289139, updator=13701087609, issue=Issue{id=1304921585991836085, tenantId=1146029695717560320, journalId=1149653034449285133, year='2026', volume='59', issue='8', pageStart='1', pageEnd='160', issueExtLink='null', onlineDate='null', pubDate='1787155200000', pubDateStr='2026-08-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1789047150370, creator='13701087609', updateTime=1789117776362, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1305217812939698326, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921585991836085, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1305217812939698327, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921585991836085, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=132, endPage=141, ext={EN=ArticleExt(id=1304922168521941491, articleId=1304922168031207922, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Research on electromagnetic characteristics of winding interlayer insulation fault in dry-type transformer, columnId=1192878364340924664, journalTitle=Insulating Materials, columnName=Test and Analysis, runingTitle=null, highlight=null, articleAbstract=
Dry-type transformer windings are directly exposed to the air, and are highly susceptible to interlayer short-circuit faults due to environmental factors such as temperature and humidity. Moreover, the early insulation degradation is difficult to detect. Therefore, this paper aims to investigate the electromagnetic characteristics of winding interlayer insulation faults, providing a theoretical basis for optimal insulation configuration and condition diagnosis. First, an interlayer short-circuit current testing method using dry-type transformer taps was proposed, and a 3D "field-circuit" coupled model consistent with actual transformer dimensions was established for experimental validation. Subsequently, based on the temperature-humidity-resistance correlation characteristics of insulation materials, a parametric model was established for winding interlayer insulation resistance. The evolution laws of fault-layer current and spatial magnetic flux density under different fault locations were simulated and analyzed during the insulation resistance decay process from 106 Ω to 0 Ω. The results show that the fault layer current and magnetic flux density exhibit a non-linear and highly sensitive response to the changes in interlayer insulation resistance. When the insulation resistance drops to 103 Ω and 10 Ω, respectively, the electromagnetic parameters undergo significant abrupt changes, and the change rates of fault layer current and magnetic flux density increase to 12.55 A/Ω, 0.01 mT/Ω, and 66.69 A/Ω, 14.65 mT/Ω, respectively. Furthermore, after the interlayer insulation resistance decreases to 10 Ω, as the fault location moves from the outer to the inner layer, the fault layer current and spatial magnetic field first increase and then decrease, and presenting a spatial distribution pattern of "maximum in the center, minimum at the edges". On the basis of these abrupt change characteristics, 103 Ω and 10 Ω are determined as the critical resistance criteria for interlayer insulation degradation and breakdown of winding layers in dry-type transformers, respectively. According to their spatial distribution characteristics of current and magnetic field under interlayer insulation fault, it is concluded that the middle layer of the winding is the area with weak insulation, while the edge layer is the area where fault detection is unfavorable.
, authors=Yujie Meng
1, Richang Xian
1, Bochen Liu
2, Lei Sun
2, Guang Liu
2, Hongmin Hao
2, authorsList=Yujie Meng, Richang Xian, Bochen Liu, Lei Sun, Guang Liu, Hongmin Hao, authorCompany=null, correspAuthors=Richang Xian, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1304922172380701194, articleId=1304922168031207922, tenantId=1146029695717560320, journalId=1149653034449285133, language=CN, title=干式变压器绕组层间绝缘故障的电磁特征研究, columnId=1192878364483531003, journalTitle=绝缘材料, columnName=测试与分析, runingTitle=null, highlight=null, articleAbstract=
干式变压器绕组直接暴露在空气中,受温湿度等环境因素影响极易发生层间短路,且早期绝缘劣化不易检测。为此,本文旨在研究绕组层间绝缘故障的电磁特征,为绝缘的优化配置和状态诊断提供理论依据。首先,提出一种利用干式变压器分接头检测层间短路电流的试验方法,并建立与实际变压器尺寸一致的三维“场-路”耦合模型进行试验验证。随后,基于绝缘材料的温湿度-电阻关联特性对绕组层间绝缘电阻进行参数化建模,仿真分析绝缘电阻从106 Ω衰减至0 Ω过程中,不同故障位置下故障层电流与空间磁感应强度的演变规律。结果表明:故障层电流与磁感应强度对层间绝缘电阻的变化具有非线性高灵敏响应特征。当绝缘电阻分别降至103 Ω和10 Ω时,电磁参量发生显著突变,故障层电流与磁感应强度变化率分别激增至12.55 A/Ω、0.01 mT/Ω以及66.69 A/Ω、14.65 mT/Ω。此外,层间绝缘电阻下降至10 Ω后,随着故障位置由外层向内层移动,故障层电流和空间磁场先增大后减小,空间分布呈现“中心大,边缘小”的特征。基于上述突变特征,本文将103 Ω和10 Ω分别确定为干式变压器绕组层间绝缘劣化与击穿的临界电阻,并根据层间绝缘故障下电流和磁场的空间分布特征得出绕组中间层为绝缘薄弱的区域,边缘层为故障检测不利的区域。
, authors=孟玉洁
1, 咸日常
1, 刘泊辰
2, 孙磊
2, 刘广
2, 郝洪民
2, authorsList=孟玉洁, 咸日常, 刘泊辰, 孙磊, 刘广, 郝洪民, authorCompany=null, correspAuthors=咸日常, authorNote=
孟玉洁(2000-),女(汉族),山东淄博人,硕士生,主要从事高电压技术与绝缘的研究
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咸日常(1966-),男(汉族),山东高密人,教授,主要从事电气设备在线监测与故障诊断的研究。
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1School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255000, China), AuthorCompanyExt(id=1304922261132178311, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, companyId=1304922261115401093, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1山东理工大学 电气与电子工程学院,山东 淄博 255000)]), AuthorCompany(id=1304922261211870088, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, xref=2, ext=[AuthorCompanyExt(id=1304922261224453001, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, companyId=1304922261211870088, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2State Grid Shandong Electric Power Company Zibo Power Supply Company, Zibo 255049, China), AuthorCompanyExt(id=1304922261237035914, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, companyId=1304922261211870088, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2国网山东省电力公司淄博供电公司,山东 淄博 255049)])], figs=[ArticleFig(id=1304922264097551285, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.1, caption=
Three-dimensional geometric model of dry-type transformer, figureFileSmall=j/Iaoq+KWlGkSlHQ1kVrcA==, figureFileBig=JzLFYaPEPIspwMWvxPgpSA==, tableContent=null), ArticleFig(id=1304922264185631670, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图1, caption=
干式变压器三维几何模型, figureFileSmall=j/Iaoq+KWlGkSlHQ1kVrcA==, figureFileBig=JzLFYaPEPIspwMWvxPgpSA==, tableContent=null), ArticleFig(id=1304922264282100663, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.2, caption=
Diagram of interlayer short circuit fault in dry-type transformer windings, figureFileSmall=aAoE8x8vTHouLJLQqm9C3g==, figureFileBig=FC7YhrkLaNaBijeirZzRhQ==, tableContent=null), ArticleFig(id=1304922264357598136, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图2, caption=
干式变压器绕组层间短路故障示意图, figureFileSmall=aAoE8x8vTHouLJLQqm9C3g==, figureFileBig=FC7YhrkLaNaBijeirZzRhQ==, tableContent=null), ArticleFig(id=1304922264416318393, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.3, caption=
Equivalent circuit of interlayer insulation deterioration high voltage winding in dry-type transformer, figureFileSmall=cBjEsg0Xe8qVG6Bg5A0e6g==, figureFileBig=aIr481lKn4TBLeil/kxcbQ==, tableContent=null), ArticleFig(id=1304922264483427258, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图3, caption=
干式变压器高压绕组层间绝缘劣化等效电路, figureFileSmall=cBjEsg0Xe8qVG6Bg5A0e6g==, figureFileBig=aIr481lKn4TBLeil/kxcbQ==, tableContent=null), ArticleFig(id=1304922264567313339, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.4, caption=
High voltage winding tap structure diagram of dry-type transformer, figureFileSmall=qCcxd5l7T2sQK2yUwiDmEA==, figureFileBig=bQTlxPbYr5LnUCCWEwCexw==, tableContent=null), ArticleFig(id=1304922264642810812, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图4, caption=
干式变压器高压绕组分接头结构示意图, figureFileSmall=qCcxd5l7T2sQK2yUwiDmEA==, figureFileBig=bQTlxPbYr5LnUCCWEwCexw==, tableContent=null), ArticleFig(id=1304922264777028541, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.5, caption=
The schematic diagram of interlayer short circuit test for high voltage winding of dry-type transformer, figureFileSmall=RQsW3XcXcFvSkcB2GyMV6w==, figureFileBig=XPYQso8YRBl2GSs48cL9dw==, tableContent=null), ArticleFig(id=1304922264877691838, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图5, caption=
干式变压器高压绕组层间短路试验原理图, figureFileSmall=RQsW3XcXcFvSkcB2GyMV6w==, figureFileBig=XPYQso8YRBl2GSs48cL9dw==, tableContent=null), ArticleFig(id=1304922264969966527, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.6, caption=
The actual test wiring diagram of inter-layer short circuit of high voltage winding of dry-type transformer, figureFileSmall=8t5M+0GVA4AWKb9Ko4xTRA==, figureFileBig=Cm6Zwb5ht4N7TP0XMqm4eQ==, tableContent=null), ArticleFig(id=1304922265041269696, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图6, caption=
干式变压器高压绕组层间短路实际试验接线图, figureFileSmall=8t5M+0GVA4AWKb9Ko4xTRA==, figureFileBig=Cm6Zwb5ht4N7TP0XMqm4eQ==, tableContent=null), ArticleFig(id=1304922265129350081, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.7, caption=
Current changes in the process of interlayer insulation deterioration in dry-type transformer windings, figureFileSmall=A0hTAFDd83BZbHt1TnndUg==, figureFileBig=iuHLvAcXMYCqjITodAu8ZQ==, tableContent=null), ArticleFig(id=1304922265209041858, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图7, caption=
干式变压器绕组层间绝缘劣化过程中的电流变化, figureFileSmall=A0hTAFDd83BZbHt1TnndUg==, figureFileBig=iuHLvAcXMYCqjITodAu8ZQ==, tableContent=null), ArticleFig(id=1304922265271956419, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.8, caption=
Two terminal voltage of interlayer insulation resistance in dry type transformer windings, figureFileSmall=scCbw9VPMR5d5Dx/lCvBsA==, figureFileBig=puAtd0ERkBHRV6eI9BfQnw==, tableContent=null), ArticleFig(id=1304922265334870980, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图8, caption=
干式变压器绕组层间绝缘电阻两端电压, figureFileSmall=scCbw9VPMR5d5Dx/lCvBsA==, figureFileBig=puAtd0ERkBHRV6eI9BfQnw==, tableContent=null), ArticleFig(id=1304922265397785541, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.9, caption=
Current change of each interlayer fault short-circuit layer in dry-type transformer high-voltage winding, figureFileSmall=mHqMvLPVXBhmNwDhekLu+w==, figureFileBig=A3CFIfNQ8/3fSeTr9RDXxg==, tableContent=null), ArticleFig(id=1304922265469088710, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图9, caption=
干式变压器高压绕组每层层间故障短路层电流变化, figureFileSmall=mHqMvLPVXBhmNwDhekLu+w==, figureFileBig=A3CFIfNQ8/3fSeTr9RDXxg==, tableContent=null), ArticleFig(id=1304922265532003271, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.10, caption=
Magnetic flux density under winding interlayer insulation fault, figureFileSmall=xFnPZTsCa2CdlGoAVVYDUw==, figureFileBig=gRgr1sW93LIu5AlvPiA1XQ==, tableContent=null), ArticleFig(id=1304922265620083656, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图10, caption=
绕组层间绝缘故障时的磁感应强度, figureFileSmall=xFnPZTsCa2CdlGoAVVYDUw==, figureFileBig=gRgr1sW93LIu5AlvPiA1XQ==, tableContent=null), ArticleFig(id=1304922265682998217, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Fig.11, caption=
The change of magnetic induction intensity of interlayer fault short-circuit layer at different positions, figureFileSmall=PAEiqGK3xea7RqTCB/zhsw==, figureFileBig=58HqoWdjwE4ZlRDyXAdQ7Q==, tableContent=null), ArticleFig(id=1304922265754301386, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=图11, caption=
不同位置层间故障短路层的磁感应强度变化, figureFileSmall=PAEiqGK3xea7RqTCB/zhsw==, figureFileBig=58HqoWdjwE4ZlRDyXAdQ7Q==, tableContent=null), ArticleFig(id=1304922265825604555, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Table 1, caption=
Main technical parameters and size parameters of dry-type transformer
, figureFileSmall=null, figureFileBig=null, tableContent=
| 技术参数 | 数值 | 尺寸参数 | 数值 |
|---|
| 额定容量/kVA | 30 | 铁心直径/mm | 75 |
| 额定电压/kV | 10/0.4 | 铁芯窗高/mm | 420 |
| 额定电流/A | 1/43.3 | 中心距/mm | 235 |
| 联结组号 | Dyn11 | 铁轭高度/mm | 90 |
| 高压绕组/匝 | 3 636 | 高压绕组直径/mm | 167~201 |
| 低压绕组/匝 | 80 | 低压绕组直径/mm | 87~101 |
| 频率/Hz | 50 | 高压绕组高度/mm | 310 |
| — | — | 低压绕组高度/mm | 316 |
), ArticleFig(id=1304922265896907724, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=表1, caption=
干式变压器主要技术参数及尺寸参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 技术参数 | 数值 | 尺寸参数 | 数值 |
|---|
| 额定容量/kVA | 30 | 铁心直径/mm | 75 |
| 额定电压/kV | 10/0.4 | 铁芯窗高/mm | 420 |
| 额定电流/A | 1/43.3 | 中心距/mm | 235 |
| 联结组号 | Dyn11 | 铁轭高度/mm | 90 |
| 高压绕组/匝 | 3 636 | 高压绕组直径/mm | 167~201 |
| 低压绕组/匝 | 80 | 低压绕组直径/mm | 87~101 |
| 频率/Hz | 50 | 高压绕组高度/mm | 310 |
| — | — | 低压绕组高度/mm | 316 |
), ArticleFig(id=1304922265980793805, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Table 2, caption=
Evolution path of interlayer insulation states in dry-type transformer
, figureFileSmall=null, figureFileBig=null, tableContent=
| 仿真阶段 | 电阻/Ω | 等效温度/℃ | 相对湿度/% | 环境说明 |
|---|
| 阶段1 | 106 | 25 | 0.20 | 常温干燥,绝缘良好 |
| 阶段2 | 104 | 58 | 0.65 | 高温高湿初期 |
| 阶段3 | 103 | 67 | 0.72 | 高温潮湿 |
| 阶段4 | 100 | 73 | 0.76 | 严重潮湿导致中度劣化 |
| 阶段5 | 10 | 77 | 0.82 | 绝缘材料降解明显 |
| 阶段6 | 1 | 82 | 0.88 | 临近击穿,失效边界状态 |
| 阶段7 | 0.1 | 85 | 0.91 | 击穿前夕 |
| 阶段8 | 0.01 | 89 | 0.94 | 部分击穿 |
| 阶段9 | 0 | 90 | 0.95 | 层间短路故障 |
), ArticleFig(id=1304922266077262798, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=表2, caption=
干式变压器层间绝缘状态演化路径
, figureFileSmall=null, figureFileBig=null, tableContent=
| 仿真阶段 | 电阻/Ω | 等效温度/℃ | 相对湿度/% | 环境说明 |
|---|
| 阶段1 | 106 | 25 | 0.20 | 常温干燥,绝缘良好 |
| 阶段2 | 104 | 58 | 0.65 | 高温高湿初期 |
| 阶段3 | 103 | 67 | 0.72 | 高温潮湿 |
| 阶段4 | 100 | 73 | 0.76 | 严重潮湿导致中度劣化 |
| 阶段5 | 10 | 77 | 0.82 | 绝缘材料降解明显 |
| 阶段6 | 1 | 82 | 0.88 | 临近击穿,失效边界状态 |
| 阶段7 | 0.1 | 85 | 0.91 | 击穿前夕 |
| 阶段8 | 0.01 | 89 | 0.94 | 部分击穿 |
| 阶段9 | 0 | 90 | 0.95 | 层间短路故障 |
), ArticleFig(id=1304922266148565967, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Table 3, caption=
Comparison of measured and simulated values of interlayer short-circuit test in dry-type transformer
, figureFileSmall=null, figureFileBig=null, tableContent=
| 倍率 | 参数 | A1和A3 | A3和A5 | A2和A4 | A4和A6 |
|---|
| 0.3 | 绕组电流/A | 0.57 | 0.54 | 0.61 | 0.59 |
| 仿真值/A | 1.063 1 | 1.053 2 | 1.093 5 | 1.073 5 |
| 试验值/A | 1.053 2 | 1.061 8 | 1.104 3 | 1.080 4 |
| 相对误差/% | 0.94 | 0.81 | 0.98 | 0.64 |
| 0.5 | 绕组电流/A | 0.97 | 1.06 | 0.96 | 1.01 |
| 仿真值/A | 1.763 7 | 1.752 8 | 1.656 7 | 1.812 1 |
| 试验值/A | 1.753 2 | 1.761 8 | 1.640 9 | 1.804 5 |
| 相对误差/% | 0.60 | 0.51 | 0.96 | 0.42 |
| 0.7 | 绕组电流/A | 1.22 | 1.13 | 1.28 | 1.17 |
| 仿真值/A | 2.188 3 | 2.199 2 | 2.156 3 | 2.165 4 |
| 试验值/A | 2.199 5 | 2.213 3 | 2.175 2 | 2.180 9 |
| 相对误差/% | 0.51 | 0.64 | 0.87 | 0.71 |
), ArticleFig(id=1304922266219869136, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=表3, caption=
干式变压器层间短路试验测量值与仿真值对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 倍率 | 参数 | A1和A3 | A3和A5 | A2和A4 | A4和A6 |
|---|
| 0.3 | 绕组电流/A | 0.57 | 0.54 | 0.61 | 0.59 |
| 仿真值/A | 1.063 1 | 1.053 2 | 1.093 5 | 1.073 5 |
| 试验值/A | 1.053 2 | 1.061 8 | 1.104 3 | 1.080 4 |
| 相对误差/% | 0.94 | 0.81 | 0.98 | 0.64 |
| 0.5 | 绕组电流/A | 0.97 | 1.06 | 0.96 | 1.01 |
| 仿真值/A | 1.763 7 | 1.752 8 | 1.656 7 | 1.812 1 |
| 试验值/A | 1.753 2 | 1.761 8 | 1.640 9 | 1.804 5 |
| 相对误差/% | 0.60 | 0.51 | 0.96 | 0.42 |
| 0.7 | 绕组电流/A | 1.22 | 1.13 | 1.28 | 1.17 |
| 仿真值/A | 2.188 3 | 2.199 2 | 2.156 3 | 2.165 4 |
| 试验值/A | 2.199 5 | 2.213 3 | 2.175 2 | 2.180 9 |
| 相对误差/% | 0.51 | 0.64 | 0.87 | 0.71 |
), ArticleFig(id=1304922266307949521, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Table 4, caption=
Change rate of fault layer current with the change of interlayer insulation resistance
, figureFileSmall=null, figureFileBig=null, tableContent=
| 绝缘电阻变化 | 电流变化率/(A/Ω) |
|---|
| 正常状态至104 Ω | 0 |
| 104 Ω至103 Ω | 0 |
| 103 Ω至100 Ω | 0.01 |
| 100 Ω至10 Ω | 0.48 |
| 10 Ω至1 Ω | 12.55 |
| 1 Ω至0.1 Ω | 49.83 |
| 0.1 Ω至0.01 Ω | 66.69 |
| 0.01 Ω至0 Ω | 68.42 |
), ArticleFig(id=1304922266387641298, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=表4, caption=
故障层电流随层间绝缘电阻变化的变化率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 绝缘电阻变化 | 电流变化率/(A/Ω) |
|---|
| 正常状态至104 Ω | 0 |
| 104 Ω至103 Ω | 0 |
| 103 Ω至100 Ω | 0.01 |
| 100 Ω至10 Ω | 0.48 |
| 10 Ω至1 Ω | 12.55 |
| 1 Ω至0.1 Ω | 49.83 |
| 0.1 Ω至0.01 Ω | 66.69 |
| 0.01 Ω至0 Ω | 68.42 |
), ArticleFig(id=1304922266463138771, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=EN, label=Table 5, caption=
Change rate of magnetic field strength of fault layer with the change of interlayer insulation resistance
, figureFileSmall=null, figureFileBig=null, tableContent=
| 绝缘电阻变化 | 变化率/(mT/Ω) |
|---|
| 正常状态至104 Ω | 0 |
| 104 Ω至103 Ω | 0 |
| 103 Ω至100 Ω | 0.01 |
| 100 Ω至10 Ω | 0.53 |
| 10 Ω至1 Ω | 14.65 |
| 1 Ω至0.1 Ω | 62.44 |
| 0.1 Ω至0.01 Ω | 79.52 |
| 0.01 Ω至0 Ω | 81.72 |
), ArticleFig(id=1304922266534441940, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304922168031207922, language=CN, label=表5, caption=
故障层磁感应强度随层间绝缘电阻变化的变化率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 绝缘电阻变化 | 变化率/(mT/Ω) |
|---|
| 正常状态至104 Ω | 0 |
| 104 Ω至103 Ω | 0 |
| 103 Ω至100 Ω | 0.01 |
| 100 Ω至10 Ω | 0.53 |
| 10 Ω至1 Ω | 14.65 |
| 1 Ω至0.1 Ω | 62.44 |
| 0.1 Ω至0.01 Ω | 79.52 |
| 0.01 Ω至0 Ω | 81.72 |
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