Article(id=1198667704166089037, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198667701179740314, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2023.05.011, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1652803200000, receivedDateStr=2022-05-18, revisedDate=1657814400000, revisedDateStr=2022-07-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1763714250842, onlineDateStr=2025-11-21, pubDate=1684512000000, pubDateStr=2023-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763714250842, onlineIssueDateStr=2025-11-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763714250842, creator=13701087609, updateTime=1763714250842, updator=13701087609, issue=Issue{id=1198667701179740314, tenantId=1146029695717560320, journalId=1149653034449285133, year='2023', volume='56', issue='5', pageStart='1', pageEnd='113', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763714250130, creator=13701087609, updateTime=1766563551357, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210618536771318327, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198667701179740314, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210618536771318328, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1198667701179740314, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=69, endPage=75, ext={EN=ArticleExt(id=1198667704426135891, articleId=1198667704166089037, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Application research and discussion on natural ester insulating oil in transformer, columnId=1190369198472794288, journalTitle=Insulating Materials, columnName=Insulation Technology, runingTitle=null, highlight=null, articleAbstract=
In this paper, we analyzed the basic characteristics of natural ester oil, and introduced the basic research results in electrical structure design and insulating oil processing of a 110 kV oil-immersed transformer using natural ester oil, and then compared with that of mineral insulating oil transformer with the same grade. The application of natural ester insulating oil in power transformers was discussed. The results show that when the natural ester oil is used in transformers with voltage of 110 kV and below, the design principle of electrical structure can refer to mineral insulating oil transformer standard. The impregnation treatment of insulating parts and the selection of sealant pad when using the natural ester insulating oil are quite different from using mineral insulating oil. During the storage and transportation process, natural ester insulating oil should avoid contact with air to prevent oxidation. The kinematic viscosity of natural ester insulating oil has an obvious effect on the temperature rise of transformer, which should be corrected accordingly when designing the structure. On the basis of the excellent properties of natural ester insulating oil, it has broad prospects in power transformer field.
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本文分析了天然酯绝缘油的基本特性,介绍了一台采用天然酯绝缘油的110 kV油浸式变压器在电气结构设计、绝缘油工艺处理等方面的基础研究结果,并与同等级的矿物绝缘油变压器进行对比,对天然酯绝缘油在电力变压器中的应用进行了探讨。结果表明:当天然酯绝缘油应用于110 kV及以下电压的变压器时,电气结构设计原则可参照矿物绝缘油变压器标准。使用天然酯绝缘油时绝缘件的浸渍处理和密封胶垫的选用与使用矿物绝缘油时有较大差异。天然酯绝缘油在贮存与运输过程中要避免与空气接触,防止氧化。天然酯绝缘油的运动黏度对变压器的温升影响明显,结构设计时要进行相应地修正。基于天然酯绝缘油的优异特性,其在电力变压器领域具有广阔的应用前景。
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张亚杰(1973-),男(汉族),河北保定人,正高级工程师,研究方向为变压器技术。
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1Baoding Tianwei Group Tebian Electric Co., Ltd., Baoding 071056, China
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1保定天威集团特变电气有限公司,河北 保定 071056
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张亚杰(1973-),男(汉族),河北保定人,正高级工程师,研究方向为变压器技术。
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1Baoding Tianwei Group Tebian Electric Co., Ltd., Baoding 071056, China
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1保定天威集团特变电气有限公司,河北 保定 071056
2河北省天然酯绝缘油研究技术中心, 河北 保定 071056, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1210986414066495926, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, xref=1, ext=[AuthorCompanyExt(id=1210986414070690231, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, companyId=1210986414066495926, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1Baoding Tianwei Group Tebian Electric Co., Ltd., Baoding 071056, China
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1保定天威集团特变电气有限公司,河北 保定 071056
2河北省天然酯绝缘油研究技术中心, 河北 保定 071056, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1210986414066495926, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, xref=1, ext=[AuthorCompanyExt(id=1210986414070690231, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, companyId=1210986414066495926, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1保定天威集团特变电气有限公司,河北 保定 071056
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1Baoding Tianwei Group Tebian Electric Co., Ltd., Baoding 071056, China
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1保定天威集团特变电气有限公司,河北 保定 071056
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2012., articleTitle=植物绝缘油配电变压器的研制及运行, refAbstract=null)], funds=[Fund(id=1210986422413161225, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, awardId=20312101D, language=CN, fundingSource=河北省重点研发计划项目(20312101D), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1210986414066495926, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, xref=1, ext=[AuthorCompanyExt(id=1210986414070690231, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, companyId=1210986414066495926, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Distributions of electric field intensity at the end of HV and LV winding of 110 kV mineral oil insulating power transformer, figureFileSmall=Uuq7/w5JtFdRbuDVVizF8Q==, figureFileBig=8RnI+7d3/sxQycsSTQDIbw==, tableContent=null), ArticleFig(id=1210986418193691256, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=图1, caption=
110 kV矿物绝缘油电力变压器高低压绕组端部的电场分布云图和场强分布图, figureFileSmall=Uuq7/w5JtFdRbuDVVizF8Q==, figureFileBig=8RnI+7d3/sxQycsSTQDIbw==, tableContent=null), ArticleFig(id=1210986418336297601, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Fig.2, caption=
Distribution of electric field intensity at the end of HV and LV winding of 110 kV natural ester insulating oil power transformer, figureFileSmall=bMv+IVW2fHOXvL38MxtJUQ==, figureFileBig=ve7cesz8n8I9xcGq2Z4V8g==, tableContent=null), ArticleFig(id=1210986418415989383, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=图2, caption=
110 kV天然酯绝缘油电力变压器高低压绕组端部的电场分布云图和场强分布图, figureFileSmall=bMv+IVW2fHOXvL38MxtJUQ==, figureFileBig=ve7cesz8n8I9xcGq2Z4V8g==, tableContent=null), ArticleFig(id=1210986418504069772, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Fig.3, caption=
The wave process calculation result for lightning impulse voltage of transformer winding, figureFileSmall=E2RNlMgvf/7gS9HQ9uONcw==, figureFileBig=BJt+Z6ug0AnyxjpcKkYNxg==, tableContent=null), ArticleFig(id=1210986418617315984, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=图3, caption=
变压器绕组雷电冲击电压波过程计算结果, figureFileSmall=E2RNlMgvf/7gS9HQ9uONcw==, figureFileBig=BJt+Z6ug0AnyxjpcKkYNxg==, tableContent=null), ArticleFig(id=1210986418747339413, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Fig.4, caption=
Winding oil circuit structure, figureFileSmall=WKwpZfayQ/ZhYiHd8ywimg==, figureFileBig=1WfEq48qPYlBHK3P7wfGwg==, tableContent=null), ArticleFig(id=1210986418848002712, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=图4, caption=
绕组油导向结构, figureFileSmall=WKwpZfayQ/ZhYiHd8ywimg==, figureFileBig=1WfEq48qPYlBHK3P7wfGwg==, tableContent=null), ArticleFig(id=1210986418952860316, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Fig.5, caption=
Images of insulating parts before and after immersed with natural ester oil, figureFileSmall=Tgx6T/yN2BImW4sWwSJnuQ==, figureFileBig=sDjlFSbfbXz7pJznlitG5w==, tableContent=null), ArticleFig(id=1210986419040940705, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=图5, caption=
绝缘件浸渍天然酯绝缘油前后图片, figureFileSmall=Tgx6T/yN2BImW4sWwSJnuQ==, figureFileBig=sDjlFSbfbXz7pJznlitG5w==, tableContent=null), ArticleFig(id=1210986419154186921, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Fig.6, caption=
Top temperature rise curves of oils under ONAF condition, figureFileSmall=9EdgIg/yvxefIzchccuekg==, figureFileBig=Lb8wpOOI7Yc7yTHkIUbw/g==, tableContent=null), ArticleFig(id=1210986419263238831, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=图6, caption=
ONAF条件下油顶温升变化曲线, figureFileSmall=9EdgIg/yvxefIzchccuekg==, figureFileBig=Lb8wpOOI7Yc7yTHkIUbw/g==, tableContent=null), ArticleFig(id=1210986419376485044, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Fig.7, caption=
Top temperature rise curves of oils under ONAN condition, figureFileSmall=hXQqhTFkxxEy2k7M987HiQ==, figureFileBig=E5JNcDDI/8Q2QvfbU2zgAw==, tableContent=null), ArticleFig(id=1210986419451982521, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=图7, caption=
ONAN条件下油顶温升变化曲线, figureFileSmall=hXQqhTFkxxEy2k7M987HiQ==, figureFileBig=E5JNcDDI/8Q2QvfbU2zgAw==, tableContent=null), ArticleFig(id=1210986419573617340, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Tab.1, caption=
Comparison on properties of natural ester insulating oil and mineral insulating oil, figureFileSmall=null, figureFileBig=null, tableContent=
| 指标 | 矿物绝缘油 | 天然酯绝缘油 |
|---|
| 密度(20℃)/(kg/m3) | 0.88 | 0.92 |
| 相对介电常数(25℃) | 2.2 | 3.1 |
| 倾点/℃ | -50 | -20 |
| 燃点/℃ | 170 | 360 |
| 运动黏度(20℃)/(mm2/s) | 22 | 85 |
| 运动黏度(100℃)/(mm2/s) | 2.6 | 8.4 |
| 热导率(20℃)/(W/(m·K)) | 0.126 | 0.177 |
| 击穿电压/kV | 70 | 75 |
), ArticleFig(id=1210986419657503424, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=表1, caption=
天然酯绝缘油与矿物绝缘油的特性对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 指标 | 矿物绝缘油 | 天然酯绝缘油 |
|---|
| 密度(20℃)/(kg/m3) | 0.88 | 0.92 |
| 相对介电常数(25℃) | 2.2 | 3.1 |
| 倾点/℃ | -50 | -20 |
| 燃点/℃ | 170 | 360 |
| 运动黏度(20℃)/(mm2/s) | 22 | 85 |
| 运动黏度(100℃)/(mm2/s) | 2.6 | 8.4 |
| 热导率(20℃)/(W/(m·K)) | 0.126 | 0.177 |
| 击穿电压/kV | 70 | 75 |
), ArticleFig(id=1210986419753972421, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Tab.2, caption=
Compatibility between sealant pad materials and natural ester oil, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 与天然酯绝缘油的相容性(某国产天然酯) |
|---|
| 丁腈橡胶 | 氢化丁腈 | 丙烯酸酯 | 氟橡胶 | 氟硅橡胶 |
|---|
| 颜色 | 变棕变深 | 无明显变化 | 无明显变化 | 无明显变化 | 无明显变化 |
| 酸值 | 增大 | 轻微增大 | 部分样品增大 | 无明显变化 | 无明显变化 |
| 介质损耗 | 增大15倍 | 轻微增大 | 部分样品增大 | 无明显变化 | 无明显变化 |
| 结论 | 一般 | 良好 | 一般 | 良好 | 良好 |
), ArticleFig(id=1210986419833664199, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=表2, caption=
密封胶垫材料与天然酯绝缘油的相容性
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 与天然酯绝缘油的相容性(某国产天然酯) |
|---|
| 丁腈橡胶 | 氢化丁腈 | 丙烯酸酯 | 氟橡胶 | 氟硅橡胶 |
|---|
| 颜色 | 变棕变深 | 无明显变化 | 无明显变化 | 无明显变化 | 无明显变化 |
| 酸值 | 增大 | 轻微增大 | 部分样品增大 | 无明显变化 | 无明显变化 |
| 介质损耗 | 增大15倍 | 轻微增大 | 部分样品增大 | 无明显变化 | 无明显变化 |
| 结论 | 一般 | 良好 | 一般 | 良好 | 良好 |
), ArticleFig(id=1210986419942716107, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Tab.3, caption=
Insulation property test data of transformers filled with different insulating oils, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验项目 | 绕组组合 | 矿物绝缘油变压器 | 天然酯绝缘油变压器 |
|---|
绝缘电阻(折算至20.0℃) /MΩ | H-LE | 5 540 | 1 670 |
| L-HE | 6 910 | 1 180 |
| HL-E | 4 360 | 1 260 |
| 介质损耗因数(矿物绝缘油:28.0℃;天然酯:14.2℃)/% | H-LE | 0.22 | 0.22 |
| L-HE | 0.18 | 0.31 |
| HL-E | 0.21 | 0.32 |
| H-L | 0.16 | 0.18 |
| 绕组电容量/pF | H-LE | 7 261 | 9 247 |
| L-HE | 12 570 | 16 600 |
| HL-E | 14 030 | 18 070 |
| H-L | 2 915 | 3 918 |
), ArticleFig(id=1210986420030796497, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=表3, caption=
填充不同绝缘油变压器的绝缘特性试验数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验项目 | 绕组组合 | 矿物绝缘油变压器 | 天然酯绝缘油变压器 |
|---|
绝缘电阻(折算至20.0℃) /MΩ | H-LE | 5 540 | 1 670 |
| L-HE | 6 910 | 1 180 |
| HL-E | 4 360 | 1 260 |
| 介质损耗因数(矿物绝缘油:28.0℃;天然酯:14.2℃)/% | H-LE | 0.22 | 0.22 |
| L-HE | 0.18 | 0.31 |
| HL-E | 0.21 | 0.32 |
| H-L | 0.16 | 0.18 |
| 绕组电容量/pF | H-LE | 7 261 | 9 247 |
| L-HE | 12 570 | 16 600 |
| HL-E | 14 030 | 18 070 |
| H-L | 2 915 | 3 918 |
), ArticleFig(id=1210986420135654100, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Tab.4, caption=
Temperature rise test results under ONAF condition, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 矿物绝缘油变压器 | 天然酯绝缘油变压器 |
|---|
| 油顶层温升/K | 44.4 | 50.6 |
| 油平均温升/K | 29.0 | 33.7 |
| 高压绕组平均温升/K | 49.3 | 49.6 |
| 低压绕组平均温升/K | 62.0 | 65.7 |
| 高压绕组对油温升/K | 20.3 | 15.9 |
| 低压绕组对油温升/K | 33 | 32 |
), ArticleFig(id=1210986420232123097, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=表4, caption=
ONAF条件下的温升结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 矿物绝缘油变压器 | 天然酯绝缘油变压器 |
|---|
| 油顶层温升/K | 44.4 | 50.6 |
| 油平均温升/K | 29.0 | 33.7 |
| 高压绕组平均温升/K | 49.3 | 49.6 |
| 低压绕组平均温升/K | 62.0 | 65.7 |
| 高压绕组对油温升/K | 20.3 | 15.9 |
| 低压绕组对油温升/K | 33 | 32 |
), ArticleFig(id=1210986420357952222, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Tab.5, caption=
Comparison of chromatographic data of insulating oils, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 矿物绝缘油 | 天然酯绝缘油 |
|---|
| 温升前 | 温升后 | 温升前 | 温升后 |
|---|
| H2含量/(μL/L) | 0 | 2.53 | 5.5 | 5.9 |
| CO含量/(μL/L) | 2.2 | 8.68 | 16.5 | 18.3 |
| CO2含量/(μL/L) | 220.93 | 168.68 | 190.35 | 136.79 |
| CH4含量/(μL/L) | 0.39 | 0.38 | 0.95 | 0.99 |
| C2H4含量/(μL/L) | 0 | 0 | 0.12 | 0.13 |
| C2H6含量/(μL/L) | 0 | 0 | 1.09 | 1.83 |
| C2H2含量/(μL/L) | 0 | 0 | 0 | 0 |
| 总烃含量/(μL/L) | 0.39 | 0.38 | 2.16 | 2.95 |
), ArticleFig(id=1210986420458615523, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=表5, caption=
绝缘油的色谱数据对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 矿物绝缘油 | 天然酯绝缘油 |
|---|
| 温升前 | 温升后 | 温升前 | 温升后 |
|---|
| H2含量/(μL/L) | 0 | 2.53 | 5.5 | 5.9 |
| CO含量/(μL/L) | 2.2 | 8.68 | 16.5 | 18.3 |
| CO2含量/(μL/L) | 220.93 | 168.68 | 190.35 | 136.79 |
| CH4含量/(μL/L) | 0.39 | 0.38 | 0.95 | 0.99 |
| C2H4含量/(μL/L) | 0 | 0 | 0.12 | 0.13 |
| C2H6含量/(μL/L) | 0 | 0 | 1.09 | 1.83 |
| C2H2含量/(μL/L) | 0 | 0 | 0 | 0 |
| 总烃含量/(μL/L) | 0.39 | 0.38 | 2.16 | 2.95 |
), ArticleFig(id=1210986420576056039, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Tab.6, caption=
Comparison of chromatographic data of insulating oils, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 矿物绝缘油 | 天然酯绝缘油 |
|---|
| 温升前 | 温升后 | 温升前 | 温升后 |
|---|
| H2含量/(μL/L) | 0 | 2.51 | 27.76 | 8.57 |
| CO含量/(μL/L) | 2.2 | 16.59 | 26.29 | 23.92 |
| CO2含量/(μL/L) | 220.93 | 199.40 | 193.02 | 284.78 |
| CH4含量/(μL/L) | 0.39 | 0.40 | 2.19 | 2.33 |
| C2H4含量/(μL/L) | 0 | 0 | 0.18 | 0.17 |
| C2H6含量/(μL/L) | 0 | 0 | 26.96 | 23.73 |
| C2H2含量/(μL/L) | 0 | 0 | 0 | 0 |
| 总烃含量/(μL/L) | 0.39 | 0.40 | 29.33 | 26.23 |
), ArticleFig(id=1210986420676719342, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=表6, caption=
绝缘油的色谱数据对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 矿物绝缘油 | 天然酯绝缘油 |
|---|
| 温升前 | 温升后 | 温升前 | 温升后 |
|---|
| H2含量/(μL/L) | 0 | 2.51 | 27.76 | 8.57 |
| CO含量/(μL/L) | 2.2 | 16.59 | 26.29 | 23.92 |
| CO2含量/(μL/L) | 220.93 | 199.40 | 193.02 | 284.78 |
| CH4含量/(μL/L) | 0.39 | 0.40 | 2.19 | 2.33 |
| C2H4含量/(μL/L) | 0 | 0 | 0.18 | 0.17 |
| C2H6含量/(μL/L) | 0 | 0 | 26.96 | 23.73 |
| C2H2含量/(μL/L) | 0 | 0 | 0 | 0 |
| 总烃含量/(μL/L) | 0.39 | 0.40 | 29.33 | 26.23 |
), ArticleFig(id=1210986420756411124, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Tab.7, caption=
Comparison of sound level measurement results, figureFileSmall=null, figureFileBig=null, tableContent=
| 冷却方式 | 矿物绝缘油变压器 | 天然酯绝缘油变压器 |
|---|
| ONAN | 60.6 | 58.6 |
| ONAF | 63.5 | 63.7 |
), ArticleFig(id=1210986420827714292, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=表7, caption=
声级测量结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 冷却方式 | 矿物绝缘油变压器 | 天然酯绝缘油变压器 |
|---|
| ONAN | 60.6 | 58.6 |
| ONAF | 63.5 | 63.7 |
), ArticleFig(id=1210986420928377594, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=EN, label=Tab.8, caption=
Comparison of inlet capacitance measurement results, figureFileSmall=null, figureFileBig=null, tableContent=
| 测量位置 | 矿物绝缘油变压器 | 天然酯绝缘油变压器 |
|---|
| 高压A相套管 | 988.6 | 1 096 |
| 高压B相套管 | 1 003.8 | 1 109 |
| 高压C相套管 | 1 007.6 | 1 100 |
| 低压a相套管 | 3 636.4 | 3 846 |
| 低压b相套管 | 3 636.4 | 3 879 |
| 低压c相套管 | 3 636.4 | 4 000 |
), ArticleFig(id=1210986421029040895, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1198667704166089037, language=CN, label=表8, caption=
入口电容测量结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测量位置 | 矿物绝缘油变压器 | 天然酯绝缘油变压器 |
|---|
| 高压A相套管 | 988.6 | 1 096 |
| 高压B相套管 | 1 003.8 | 1 109 |
| 高压C相套管 | 1 007.6 | 1 100 |
| 低压a相套管 | 3 636.4 | 3 846 |
| 低压b相套管 | 3 636.4 | 3 879 |
| 低压c相套管 | 3 636.4 | 4 000 |
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