Article(id=1149729530056720916, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149729524688007450, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1672-6073.2025.02.017, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1712764800000, receivedDateStr=2024-04-11, revisedDate=1720195200000, revisedDateStr=2024-07-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1752046480907, onlineDateStr=2025-07-09, pubDate=1743436800000, pubDateStr=2025-04-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752046480907, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752046480907, creator=13701087609, updateTime=1752046480907, updator=13701087609, issue=Issue{id=1149729524688007450, tenantId=1146029695717560320, journalId=1146123302524792850, year='2025', volume='38', issue='2', pageStart='1', pageEnd='177', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1752046479627, creator=13701087609, updateTime=1753780095764, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1157000837835870332, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149729524688007450, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1157000837835870333, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1149729524688007450, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=119, endPage=123, ext={EN=ArticleExt(id=1149729530337739286, articleId=1149729530056720916, tenantId=1146029695717560320, journalId=1146123302524792850, language=EN, title=Research and Application of Grounding Leakage Protection Scheme for Suspension Monorail Transit DC System, columnId=1152669334582243706, journalTitle=Urban Rapid Rail Transit, columnName=Electrical and Mechanical Engineering, runingTitle=null, highlight=null, articleAbstract=
This paper analyzes the power supply system of suspended monorail transit and emphasizes the necessity of DC system ground fault protection to ensure equipment and personnel safety under various operating conditions. While conventional voltagebased ground fault protection devices can provide basic protection functions, they lack selective tripping capability and may expand the fault area. Based on Kirchhoff's current law, this paper proposes an innovative sectional currentbased ground fault protection scheme. Through the implementation of inverse timecurrent characteristics and differential current components, the scheme achieves accurate and rapid fault section identification, enabling priority tripping of corresponding sections to isolate faults, thus significantly improving system selectivity. Through analysis of protection objectives, coverage, types, and operation time limits of both 64D protection and frame current protection, the study concludes that these two protection methods are complementary and can operate simultaneously. Field applications demonstrate that all protection functions perform sensitively and reliably. By calculating key parameters for 64D protection, this paper proposes protection schemes and system setting values for practical engineering applications, optimizing protection system selectivity, effectively reducing fault ranges, and ensuring operational safety.
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通过对悬挂式单轨交通供电系统进行分析,设置直流系统接地漏电保护,可保障各工况下设备、人员安全。常规的判断电压型接地漏电保护装置虽然可实现保护功能,但无法实现选择性跳闸,故障范围扩大。根据基尔霍夫电流定律,创新提出区段电流型接地漏电保护方案,通过反时限电流曲线及差异电流组件的应用,实现对故障区段精准、快速定位,并且相应区段优先跳闸,切除故障,系统的选择性得到质的提升。基于对 64D 保护和框架保护在对象、范围、类型及动作时限分析得出,两种保护不冲突、可以同时使用,经实际工程应用,各保护功能灵敏、可靠。通过对64D保护关键参数计算,提出应用于工程实际的保护方案及系统整定值,优化保护系统的选择性,有效缩小故障范围,保障安全运营。
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, authorsList=殷爽)}, authors=[Author(id=1154050911749005662, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=394100@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1154050911807725920, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, authorId=1154050911749005662, language=EN, stringName=Shuang YIN, firstName=Shuang, middleName=null, lastName=YIN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Shanghai Tunnel Engineering & Rail Transit Design and Research Institute Shanghai 200235, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1154050911862251873, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, authorId=1154050911749005662, language=CN, stringName=殷爽, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=上海市隧道工程轨道交通设计研究院 上海 200235, bio={"content":"
殷爽,男,本科,高级工程师,从事城市轨道交通供配电系统设计、研究与应用,394100@qq.com
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殷爽,男,本科,高级工程师,从事城市轨道交通供配电系统设计、研究与应用,394100@qq.com
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2008: 386-394., articleTitle=Design principle and application of power system for urban rail transit, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1154050911656730970, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, xref=null, ext=[AuthorCompanyExt(id=1154050911660925275, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, companyId=1154050911656730970, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Shanghai Tunnel Engineering & Rail Transit Design and Research Institute Shanghai 200235), AuthorCompanyExt(id=1154050911669313884, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, companyId=1154050911656730970, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=上海市隧道工程轨道交通设计研究院 上海 200235)])], figs=[ArticleFig(id=1154050914655658371, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, language=EN, label=Figure 1, caption=
Operating principle of voltage-based 64D protection device 64D, figureFileSmall=Btzw3B9rPzATUXtAQRv+iw==, figureFileBig=/140fmJV+VLKLk6rO0f9+w==, tableContent=null), ArticleFig(id=1154050914731155844, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, language=CN, label=图1, caption=
判断电压型 64D 装置原理, figureFileSmall=Btzw3B9rPzATUXtAQRv+iw==, figureFileBig=/140fmJV+VLKLk6rO0f9+w==, tableContent=null), ArticleFig(id=1154050914785681797, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, language=EN, label=Figure 2, caption=
Current flow diagram during positive-to-ground fault, figureFileSmall=dbjY+0VhnO13V5HtQ6g0VA==, figureFileBig=EC+Jo2nViubrq4hn2eO0kA==, tableContent=null), ArticleFig(id=1154050914861179270, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, language=CN, label=图2, caption=
正极对地短路故障短路电流流向示意, figureFileSmall=dbjY+0VhnO13V5HtQ6g0VA==, figureFileBig=EC+Jo2nViubrq4hn2eO0kA==, tableContent=null), ArticleFig(id=1154050914911510919, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, language=EN, label=Figure 3, caption=
Operating principle of sectional current-based 64D protection device, figureFileSmall=ozAK/7odGeB3M9jnm2359w==, figureFileBig=vbF1ba/qnuiU3u48ypWtiw==, tableContent=null), ArticleFig(id=1154050915012174216, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, language=CN, label=图3, caption=
区段电流型 64D 装置原理, figureFileSmall=ozAK/7odGeB3M9jnm2359w==, figureFileBig=vbF1ba/qnuiU3u48ypWtiw==, tableContent=null), ArticleFig(id=1154050915100254601, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, language=EN, label=Figure 4, caption=
Schematic diagram of frame fault protection scheme, figureFileSmall=vsZUzHDwMkyn8+b6cJEq5g==, figureFileBig=jbOwypUddrlAoVNMKK2DOA==, tableContent=null), ArticleFig(id=1154050915167363466, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, language=CN, label=图4, caption=
框架保护方案示意, figureFileSmall=vsZUzHDwMkyn8+b6cJEq5g==, figureFileBig=jbOwypUddrlAoVNMKK2DOA==, tableContent=null), ArticleFig(id=1154050915259638155, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, language=EN, label=Table 1, caption=
Comparative analysis of 64D and frame fault protection, figureFileSmall=null, figureFileBig=null, tableContent=
| 保护名称 | 保护对象 | 保护范围 | 保护类型 | 动作时限 |
| 框架保护 | 直流设备 操作人员 | 各牵引变 电所 | 电流检测元件 电压检测元件 | 人体耐受 电压时间特性 |
| 64D 保护 | 运行车辆 设备及乘客 | 全线路及 车站 | 判断电压型 区段电流型 | 相较框架保护 延时 ${0.3}\mathrm{\;s}$ |
), ArticleFig(id=1154050915322552716, tenantId=1146029695717560320, journalId=1146123302524792850, articleId=1149729530056720916, language=CN, label=表1, caption=
64D 保护与框架保护关系分析, figureFileSmall=null, figureFileBig=null, tableContent=
| 保护名称 | 保护对象 | 保护范围 | 保护类型 | 动作时限 |
| 框架保护 | 直流设备 操作人员 | 各牵引变 电所 | 电流检测元件 电压检测元件 | 人体耐受 电压时间特性 |
| 64D 保护 | 运行车辆 设备及乘客 | 全线路及 车站 | 判断电压型 区段电流型 | 相较框架保护 延时 ${0.3}\mathrm{\;s}$ |
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