摘要
现场使用的低压计量箱可能产生诸多影响计量准确和运维检修用电安全的故障,这些故障可能造成触电、起火等安全事故。智能电能表的大范围使用及用电信息全覆盖采集的需求,对电能计量箱故障数据分析处理、运行状态评价提出了更高的要求。文章基于大量低压计量箱的现场运行数据,开展了低压计量箱故障分析及分类方法研究。首先,采用部件关键性评估法对低压计量箱各部件进行评估,确认关键部件,再通过失效模式与影响分析,对关键部件进行风险评估,确定关键部件失效模式和可能出现的故障现象;然后,基于低压计量箱的现场运行数据对关键部件各类故障分类进行汇总,并按照环境、机械、电气和其他因素4大类12种影响因素,建立了低压计量箱故障多应力相关分析模型,对影响低压计量箱故障的因素展开相关性分析;最后,根据分析结果,提出低压计量箱质量监督工作相关建议。
The low-voltage metering box used in the field may produce many faults that affect the accuracy of metering and the safety of electricity use for operation and maintenance,and may even cause electric shock,fire and other safety accidents.The widespread use of smart meters and the demand for full-coverage collection of electricity consumption information have put forward higher requirements on the analysis and processing of fault data and the evaluation of operation status of electric energy metering boxes.Therefore,this paper carried out the research on the fault analysis and classification method of low-voltage metering box based on a large number of on-site operation data of low-voltage metering box.Firstly,the component criticality assessment method was used to evaluate each component of the low-voltage metering box to confirm the critical components,and then the risk assessment of the critical components was carried out through the failure mode and impact analysis to determine the failure mode and failure phenomenon of the critical components.Then,based on the field operation data of low-voltage metering box,the various types of failures of key components were summarized,and a multi-stress correlation analysis model of lowvoltage metering box failures was established according to 12 influencing factors in 4 categories:environmental,mechanical,electrical and other factors,and the correlation analysis of factors affecting low-voltage metering box failures was carried out respectively.Finally,based on the analysis results,suggestions related to the quality supervision of low-voltage metering boxes were put forward.
作者
张旭
韩冬军
李玉宏
ZHANG Xu;HAN Dongjun;LI Yuhong(Material Branch,State Grid Jibei Electric Power Co.,Ltd.,Beijing 100075 China;Yantai Dongfang Wisdom Electric Co.,Ltd.,Yantai 264003 China)
出处
《西华大学学报（自然科学版）》
CAS
2023年第3期37-46,共10页
Journal of Xihua University:Natural Science Edition
基金
国家自然科学基金项目(51907163)
国网山东省电力公司科技项目(52060818005X)。
关键词
低压计量箱
故障分析
失效模式与影响分析
部件关键性评估
low-voltage metering box
fault analysis
failure mode and effects analysis
component criticality assessment(CCA)
作者简介
第一作者:张旭(1985—),男,高级工程师,硕士,主要研究方向为质量及供应商关系管理。ORCID:0009-0004-9974-6730,E-mail:hdjwsd2020@163.com;通信作者:韩冬军(1982—),男,高级工程师,硕士,主要研究方向为电力计量检测技术。ORCID:0009-0005-2201-095X,E-mail:1159818989@qq.com。
