重庆单轨交通车体接地故障研究及处置策略
唐刚刘川容
Chongqing Monorail Transit Carbody Grounding Fault and Treatment Strategies
TANG GangLIU Chuanrong
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作者信息:重庆市轨道交通(集团)有限公司， 400042， 重庆
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Affiliation:Chongqing Rail Transit (Group) Co., Ltd., 400042, Chongqing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.07.040
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中图分类号/CLCN:U279-3+23: U232
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栏目/Col:应用技术
摘要:
目的：重庆单轨车辆设置有GR（车体接地继电器），供电系统设置有64D（接地漏电保护装置），当两者中任何一个发生接地漏电故障时，都将中断运营而造成较大影响。研究两者之间的相互作用机理，能快速查找接地漏电故障原因，并锁定故障发生点，帮助恢复运营。方法：对单轨车辆GR的动作机理及供电系统64D的动作机理进行分析，明确接地漏电故障时两者相互关系及影响；对重庆单轨2号线所发生的接地漏电的故障案例进行梳理。结果及结论：通过供电系统和车辆接地漏电故障时各自故障时间点、故障现象及故障先后发生的顺序，制定了故障车辆判定及处置一览表。经实践运用，证明该一览表能快速锁定故障点并解决问题。
Abstracts:
Objective: Chongqing monorail vehicles are equipped with GR (carbody grounding relay), power supply system is equipped with 64D (grounding leakage protection device). When the grounding leakage fault occurs in either of them, the operation will be interrupted, resulting in greater impact. Studying their interaction mechanism allows efficient identification of grounding leakage fault causes, locating the faulty points and assisting in resuming operation. Method: By analyzing the action mechanisms of both monorail vehicle GR and of power supply system 64D, their interactive relation and influence during grounding leakage are identified; the grounding leakage fault cases of Chongqing monorail Line 2 are reviewed. Result & Conclusion: According to the time, situation and sequential happenings during power supply system and vehicle grounding leakage faults are analyzed, a list for judgment and treatment of failure vehicles is formulated. Through practical application, it is proved that the faulty points can be quickly located to solve the problem.
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