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Aiming at the problems of high failure rate caused by frequent operation of the 35 kV high-voltage circuit breaker in the LF refining furnace during the steelmaking process and the difficulty in determining the online status after offline maintenance, an offline detection device was developed. Adopting a modular design, the device integrates power supply, control, indication, and output modules. By simulating actual opening and closing scenarios, it achieves accurate detection of the circuit breaker's functions and contact status. After application, the device showed advantages such as low cost, simple operation, and strong adaptability, which could shorten the fault troubleshooting time by 58%, reduce the online failure rate after maintenance to 3.2% and save 3.86 million yuan in costs per year. Thus, the continuity and safety of steelmaking production were effectively ensured.

, authors=Wei WANG1, Qian SUN2, authorsList=Wei WANG, Qian SUN, authorCompany=null, correspAuthors=Qian SUN, 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=1308544053088715391, articleId=1308544052631536253, tenantId=1146029695717560320, journalId=1268266715432370238, language=CN, title=LF精炼炉断路器离线检测装置开发及应用, columnId=1268934131426693655, journalTitle=鞍钢技术, columnName=研究与开发, runingTitle=null, highlight=null, articleAbstract=

针对炼钢LF精炼炉35 kV高压断路器频繁操作导致故障率高、离线维修后难以判定上线状态的问题,开发了一种离线检测装置。该装置采用模块化设计,集成电源、控制、指示、输出模块,通过模拟实际分合闸场景,实现对断路器功能及触头状态的精准检测。应用表明,该装置具有成本低、操作简便、适配性强等优势,能将断路器故障排查时间缩短58%,断路器维修后上线故障率降至3.2%,年节省成本386万元,有效保障了炼钢生产的连续性与安全性。

, authors=王巍1, 孙乾2, authorsList=王巍, 孙乾, authorCompany=null, correspAuthors=孙乾, authorNote=

王巍,工程师,2012年毕业于大连理工大学电气工程及其自动化专业。E-mail:

, correspAuthorsNote=
孙乾,硕士,工程师,2018年毕业于西安建筑科技大学冶金工程专业。E-mail:
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王巍,工程师,2012年毕业于大连理工大学电气工程及其自动化专业。E-mail:

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王巍,工程师,2012年毕业于大连理工大学电气工程及其自动化专业。E-mail:

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LF精炼炉断路器离线检测装置开发及应用
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王巍 1 , 孙乾 2
鞍钢技术 | 研究与开发 2026,(3): 20-23
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鞍钢技术 |研究与开发 2026 , (3) : 20 -23
LF精炼炉断路器离线检测装置开发及应用
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王巍,工程师,2012年毕业于大连理工大学电气工程及其自动化专业。E-mail:

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王巍1 , 孙乾2
作者信息
  • 1.山东钢铁集团日照有限公司,山东 日照 276801
  • 2.山东钢铁股份有限公司,山东 济南 271104
通讯作者:
孙乾,硕士,工程师,2018年毕业于西安建筑科技大学冶金工程专业。E-mail:
作者简介:

王巍,工程师,2012年毕业于大连理工大学电气工程及其自动化专业。E-mail:

Development of Offline Detection Device for Circuit Breaker in LF Refining Furnace and Its Application
Wei WANG1 , Qian SUN2
Affiliations
  • 1.Shandong Iron & Steel Group Rizhao Co., Ltd., Rizhao 276801, Shandong, China
  • 2.Shandong Iron & Steel Co., Ltd., Jinan 271104, Shandong, China
doi: 10.3969/j.issn.1006-4613.2026.03.004
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针对炼钢LF精炼炉35 kV高压断路器频繁操作导致故障率高、离线维修后难以判定上线状态的问题,开发了一种离线检测装置。该装置采用模块化设计,集成电源、控制、指示、输出模块,通过模拟实际分合闸场景,实现对断路器功能及触头状态的精准检测。应用表明,该装置具有成本低、操作简便、适配性强等优势,能将断路器故障排查时间缩短58%,断路器维修后上线故障率降至3.2%,年节省成本386万元,有效保障了炼钢生产的连续性与安全性。

LF精炼炉  /  高压断路器  /  离线检测  /  故障诊断  /  模块化设计

Aiming at the problems of high failure rate caused by frequent operation of the 35 kV high-voltage circuit breaker in the LF refining furnace during the steelmaking process and the difficulty in determining the online status after offline maintenance, an offline detection device was developed. Adopting a modular design, the device integrates power supply, control, indication, and output modules. By simulating actual opening and closing scenarios, it achieves accurate detection of the circuit breaker's functions and contact status. After application, the device showed advantages such as low cost, simple operation, and strong adaptability, which could shorten the fault troubleshooting time by 58%, reduce the online failure rate after maintenance to 3.2% and save 3.86 million yuan in costs per year. Thus, the continuity and safety of steelmaking production were effectively ensured.

LF refining furnace  /  high-voltage circuit breaker  /  offline detection  /  fault diagnosis  /  modular design
王巍, 孙乾. LF精炼炉断路器离线检测装置开发及应用. 鞍钢技术, 2026 , (3) : 20 -23 . DOI: 10.3969/j.issn.1006-4613.2026.03.004
Wei WANG, Qian SUN. Development of Offline Detection Device for Circuit Breaker in LF Refining Furnace and Its Application[J]. Angang Technology, 2026 , (3) : 20 -23 . DOI: 10.3969/j.issn.1006-4613.2026.03.004

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doi: 10.3969/j.issn.1006-4613.2026.03.004
  • 首发时间:2026-09-20
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  • 修回日期:2025-12-27
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    1.山东钢铁集团日照有限公司,山东 日照 276801
    2.山东钢铁股份有限公司,山东 济南 271104

通讯作者:

孙乾,硕士,工程师,2018年毕业于西安建筑科技大学冶金工程专业。E-mail:
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2种不同金属材料的力学参数
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属数
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genus
种数
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占总种数比例
Percentage of
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属
Genus
种数
Number of
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Percentage of total
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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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