Article(id=1202649047417974975, tenantId=1146029695717560320, journalId=1190235702286704641, issueId=1202649045064970391, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1732809600000, receivedDateStr=2024-11-29, revisedDate=1734537600000, revisedDateStr=2024-12-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1764663477043, onlineDateStr=2025-12-02, pubDate=1744646400000, pubDateStr=2025-04-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764663477043, onlineIssueDateStr=2025-12-02, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764663477043, creator=13701087609, updateTime=1764663477043, updator=13701087609, issue=Issue{id=1202649045064970391, tenantId=1146029695717560320, journalId=1190235702286704641, year='2025', volume='26', issue='4', pageStart='1', pageEnd='84', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764663476482, creator=13701087609, updateTime=1768394410677, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218297717336490184, tenantId=1146029695717560320, journalId=1190235702286704641, issueId=1202649045064970391, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218297717336490185, tenantId=1146029695717560320, journalId=1190235702286704641, issueId=1202649045064970391, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=61, endPage=64, ext={EN=ArticleExt(id=1202649047736742094, articleId=1202649047417974975, tenantId=1146029695717560320, journalId=1190235702286704641, language=EN, title=Analysis on the operating mechanism fault of a generator circuit breaker, columnId=1190338916357083282, journalTitle=Electrical Engineering, columnName=Technology & Application, runingTitle=null, highlight=null, articleAbstract=
As the core connecting equipment between the generator and the power system, generator circuit breaker is commonly installed in various power stations. Its main function is to quickly cut off the fault current in case of a fault to ensure system safety. Taking the fault of the operating mechanism during the closing of a generator circuit breaker as an example, this article clarifies the cause of the operating mechanism fault through disassembly inspection, trace analysis, and design data inspection of the faulty part, and proposes relevant preventive measures. The analysis results have important reference significance for the optimization design and operation maintenance of the operating mechanism of the generator circuit breaker.
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发电机出口断路器作为发电机与电力系统之间的核心连接设备,在各水力发电站中普遍设置,其核心功能为故障时迅速切断故障电流,以保障发电机的安全。本文以某水轮发电机出口断路器操动机构故障为例,通过对故障部位的解体检查、痕迹分析,以及查看设计资料,明确了操动机构故障原因,并基于此提出预防措施。本文分析结果可为发电机出口断路器操动机构的优化设计和运行维护提供参考。
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李 宜(1994—),男,四川省成都市人,硕士,主要从事高电压与绝缘技术方面的研究工作。
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李 宜(1994—),男,四川省成都市人,硕士,主要从事高电压与绝缘技术方面的研究工作。
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李 宜(1994—),男,四川省成都市人,硕士,主要从事高电压与绝缘技术方面的研究工作。
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| 参数 | 数值 | 备注 |
| 断路器型号 | HEC—8 | |
| 型式 | 金属封闭、SF6气体灭弧、强迫风冷、卧式、三相机械联动操作 |
| 系统标称电压/kV | 18 | |
| 额定电压/kV | 24 | |
| 额定电流/kA | 27 | |
| 额定频率/Hz | 50 | |
| 雷电冲击耐压(峰值)/kV | 150 | 1.2/50μs |
| 工频耐压(有效值)/kV | 80 | 1min |
| 局部放电允许水平/pC | ≤3 | 单相总量 |
| 额定短时耐受电流/kA | 160 | 有效值,3s |
| 额定峰值耐受电流/kA | 440 | |
| 最高环境温度/℃ | 40 | |
| 导体允许温升/温度/(K/℃) | 30/70(铜)、 65/105(银) | |
| 外壳允许温升/温度/(K/℃) | 30/70 | |
), ArticleFig(id=1218290866469389184, tenantId=1146029695717560320, journalId=1190235702286704641, articleId=1202649047417974975, language=CN, label=表1, caption=
GCB电气参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 备注 |
| 断路器型号 | HEC—8 | |
| 型式 | 金属封闭、SF6气体灭弧、强迫风冷、卧式、三相机械联动操作 |
| 系统标称电压/kV | 18 | |
| 额定电压/kV | 24 | |
| 额定电流/kA | 27 | |
| 额定频率/Hz | 50 | |
| 雷电冲击耐压(峰值)/kV | 150 | 1.2/50μs |
| 工频耐压(有效值)/kV | 80 | 1min |
| 局部放电允许水平/pC | ≤3 | 单相总量 |
| 额定短时耐受电流/kA | 160 | 有效值,3s |
| 额定峰值耐受电流/kA | 440 | |
| 最高环境温度/℃ | 40 | |
| 导体允许温升/温度/(K/℃) | 30/70(铜)、 65/105(银) | |
| 外壳允许温升/温度/(K/℃) | 30/70 | |
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