Monitoring system of locomotive disconnector in railway

doi:10.16265/j.cnki.issn1003-3033.2022.S2.0074

Abstract

Abstract:

During the operation of high-voltage locomotive disconnectors of railways, serious personal injuries may happen, and they were caused by high-voltage electric shock and high-altitude falling. In order to prevent these accidents, information control technologies such as network communication, iris recognition, interlocking control, computer programming, and big data processing were used. The mechanism of machine control and prevention of unsafe behaviors was studied. The unsafe behavior during the operation of disconnectors was identified by qualitative analysis, and the monitoring system was studied accordingly. The system involved five functional modules, including operating authorization, opening, verification of live parts, grounding protection, and closing. The design content of the modules covered all the points where unsafe behaviors may occur during the operation of disconnectors. Field practice verified that the system could eliminate the major personal safety hazards during the operation of disconnectors. These hazards were caused by simplified application processes, mismatched opening tracks, invalid verification of live parts, and closing without line withdrawal. The results show that the system can make operators wear protective equipment correctly and standardize the operation of disconnectors. As a result, the operation process will shift from human control to machine control.

Key words: disconnector, maintenance, monitoring system, unsafe behaviors, opening operation, pantograph rising for verification of live part

MENG Qian. Monitoring system of locomotive disconnector in railway[J]. China Safety Science Journal, 2022, 32(S2): 88-93.

Figures/Tables 5

Tab.1

identification of unsafe behaviors

作业流程	不安全行为		潜在原因	分类
分闸申请	操作人员、监护人员隔离开关操作证失效		生产管理因素	操作权限方面的不安全行为
	作业人员无证		生产管理因素
	作业人员培训不合格		业务技能因素
	分闸股道填写错误		思想和情绪因素
	机车型号填写错误		思想和情绪因素
	分闸申请时间填写错误		思想和情绪因素
	简化登记、提前登记、漏登记		思想和情绪因素
	监护员核对信息不规范		思想和情绪因素
防护用品穿戴	防护用品未按规定进行鉴定	生产管理因素		操作权限方面的不安全行为
	使用前未对防护用品进行检查	业务技能因素
	防护用品存在安全缺陷	生产管理因素
	防护用品穿戴不规范	思想和情绪因素
分闸操作	未确认分闸股道	思想和情绪因素		分闸方面的不安全行为
	未确认机车型号	思想和情绪因素
	申请分闸股道与实际操作股道不一致	思想和情绪因素
	未确认是否分闸到位	业务技能因素、精神状态因素
	未锁闭分闸操作控制箱	思想和情绪因素、业务技能因素		验电方面的不安全行为
升弓验电	未进行验电作业	思想和情绪因素、业务技能因素
	验电作业不规范	思想和情绪因素、业务技能因素
	司机室网压表存在精度误差	生产环境因素、业务技能因素
	接触网存在感应电压	生产环境因素、业务技能因素
挂接地线	接地线存在质量问题	生产管理因素		接地防护方面的不安全行为
	未验电直接挂接地线	思想和情绪因素、疲劳因素
	挂接地线不规范	思想和情绪因素、业务技能因素
	通过接地线的电流较大	生产管理因素、生产环境因素
车顶作业	作业人员未按规定穿戴防护用品	思想和情绪因素
撤出接地线	作业人员未下车顶	思想和情绪因素
	未撤接地线	思想和情绪因素、精神状态因素
	接地线未归位	思想和情绪因素、生产环境因素
合闸申请	操作人员、监护人员无证或证失效	生产管理因素		操作权限方面的不安全行为
	作业人员培训不合格	业务技能因素
	机车型号、合闸股道填写错误	思想和情绪因素
	合闸申请时间填写错误	思想和情绪因素
	简化登记、漏登记	思想和情绪因素
	监护员核对信息不规范	思想和情绪因素
合闸	未确认合闸股道	思想和情绪因素		合闸方面的不安全行为
	未确认机车型号	思想和情绪因素
	申请合闸股道与实际操作股道不一致	思想和情绪因素
	未确认是否合闸到位	业务技能因素
	未锁闭操作控制箱	思想和情绪因素、业务技能因素

Tab.1

Fig.1

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