基于PLC的继电器多通道耐久测试系统研究  

Multi-channel endurance testing system for electromechanical relays based on PLC

作　　者：张婧[1] 甘红胜[1] 梁辉[1] 赵志嵩 李广超[1] 

机构地区：[1]上海出入境检验检疫局机电产品检测技术中心,上海200135

出　　处：《机电工程》2014年第2期253-256,共4页Journal of Mechanical & Electrical Engineering

摘　　要：针对继电器长期工作后可靠性降低、故障率上升,从而影响整机产品质量以及生产安全等问题,耐久性安全测试是十分必要的检测手段。结合基础机电继电器的国际和国内最新版本标准的新要求,研发了集继电器电气耐久和机械耐久试验于一体的多通道测试系统,该系统可同时连接电器上彼此独立的9路输出通道,实现被测样品负载或空载耐久试验的自动监控;对测试系统的技术需求做了简要介绍,给出了耐久性安全检测设备的相关设计要求;通过PLC、电流传感器以及触摸屏等自动化组件构建起了测试系统的硬件部分;软件部分主要完成了对关键试验信息(如试验模式选择、参数设定、通道选择、通断次数采集、试验异常判定与显示、声光报警等模块)的编程。研究和测试结果表明,这种新型的继电器耐久测试系统具有良好的检测效率和精度。Aiming at the contact performance and reliability of relays after long-term working,endurance test was the very necessary measure to ensure product quality.Based on the new requirements of relevant varieties of international and national standards of the latest version,an endurance testing system integrated with electrical endurance and mechanical endurance testing ability was developed.Nine output circuits could be connected at the same time with an option of a load or no-load mode.A brief introduction to the technical requirements of the system was given.It was built up with PLC,current sensors,touch screen,and other automation components.Modules,such as mode selection,parameter setting,channel selection,on-off frequency acquisition,abnormality detection and determination,sound and light alarms,etc.were designed by software programming.The research results indicate that this new kind of testing system for relays proved to be efficient and accurate.

关 键 词：基础机电继电器 电气耐久性 机械耐久性 PLC控制 测试系统 

分 类 号：TM58[电气工程—电器] TP23[自动化与计算机技术—检测技术与自动化装置]