污水处理厂PLC控制系统防雷方案 - 安迅防雷-防雷器SPD浪涌?；て鞑费⌒图敖饩龇桨柑峁┥?/title> <meta name="keywords" content="PLC,自动化,控制系统,防雷,方案,PLC,自动化," /> <meta name="description" content="一、前言污水处理厂PLC自动化控制系统传输线路长、线路复杂betway88w|首页|欢迎您、设备精密程度高，当感应浪涌侵入时极易造成控制系统设备损害。加之为保证污水处理厂污水处理过程的安全性、可靠性和生产" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body class="home" id="solarc"> "<h1><a href=""http://www.myjacobswell.com\"">betway88w|首页|欢迎您拥有全球最顶尖的原生APP，每天为您提供千场精彩体育赛事,betway88w|首页|欢迎您更有真人、彩票、电子老虎机、真人电子竞技游戏等多种娱乐方式选择,betway88w|首页|欢迎您让您尽享娱乐、赛事投注等，且无后顾之忧!</a></h1> <optgroup id="420yu"></optgroup><s id="420yu"></s><blockquote id="420yu"></blockquote><label id="420yu"></label><center id="420yu"></center><div id="420yu"></div><source id="420yu"></source><code id="420yu"></code><blockquote id="420yu"></blockquote><s id="420yu"></s><u id="420yu"></u><optgroup id="420yu"></optgroup><small id="420yu"></small><blockquote id="420yu"></blockquote><div 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污水处理厂PLC自动化控制系统传输线路长、线路复杂、设备精密程度高，当感应浪涌侵入时极易造成控制系统设备损害。加之为保证污水处理厂污水处理过程的安全性、可靠性和生产的连续性betway88w|首页|欢迎您，提高污水处理厂的自动化水平，目前国内外污水处理厂广泛应用基于可编程序控制器（PLC）的集散型控制系统，并以各种仪表及计算机监控系统组成监控和数据采集（SCADA）系统。<br /> <br /> 集散型控制系统的特点是将管理层和控制层分开。管理层主要是对全厂整个生产过程进行监视betway88w|首页|欢迎您；控制层主要是通过现场PLC完成各自辖域内的自动控制。SCADA系统可理解为通过现场检测仪表和网络设备完成对主要工艺流程的监控和对生产过程的工艺参数进行数据采集。<br /> <br /> 污水处理流程中的各检测仪表均为在线式仪表，变送器均带有数字显示装置并向可编程序控制器（PLC）传送标准模拟、数字信号。每个AI/AO模拟量要求加信号隔离器，加<a href="http://www.myjacobswell.com">防雷器</a>，DI/DO要求加继电器隔离betway88w|首页|欢迎您。<br /> <br /> <img alt="" src="/uploads/allimg/190518/1-1Z51Q4463HJ.jpg" style="width: 546px; height: 406px;" /><br /> <br /> <strong>二、PLC系统<a href="http://www.myjacobswell.com/service/414.html">浪涌?；て餮⌒?/a></strong><br /> <br /> 系统中凡是经过电缆由室外进入室内的信号线（采用光缆的除外）、PLC的电源线betway88w|首页|欢迎您，由室内馈出到室外仪表的电源线、信号线等均需安装防雷器、浪涌吸收装置。防雷器应选用质量可靠、市场占有率高的国际知名品牌产品。<br /> <br /> <strong>1）信号线防雷器的主要技术性能指标</strong><br /> <br /> 在防雷器安装后，对原有线路无影响，且安装使用方便。<br /> 可多次反复使用betway88w|首页|欢迎您，雷击后可恢复功能。<br /> 额定工作电压：24V<br /> 冲击电流D1（10/350us）：2kA<br /> 通流容量C2（1.2/50us）:10kV&5kA<br /> 工作温度：-40℃ ~ +70℃betway88w|首页|欢迎您，<br /> 响应时间：≤ 1 ns</span><br /> <br /> <strong><span style="font-size: 14px;">推荐型号AS24Y-D1</span></strong><br /> <span style="font-size:14px;">信号防雷器安装在PLC控制柜处，从室外引入或从室内引出的信号线均串联安装信号防雷器，并做接地处理betway88w|首页|欢迎您。<br /> <img alt="" src="/uploads/allimg/190518/1-1Z51Q45019B1.jpg" style="width: 600px; height: 338px;" title="PLC信号防雷器尺寸及安装图" /><br /> <br /> <br /> <br /> <strong>2）电源浪涌?betway88w|首页|欢迎您；て鞯闹饕际跣阅苤副?nbsp; </strong><br /> <br /> 采用B+D复合型浪涌眀etway88w|首页|欢迎您；て?betway88w|首页|欢迎您，通流容量大，残压低betway88w|首页|欢迎您，适用于一二三级各个位置的电源防雷betway88w|首页|欢迎您。<br /> 正常工作电压符合我国电网要求工作温度：-40℃ ~ +70℃<br /> 可多次反复使用betway88w|首页|欢迎您，雷击后可恢复功能。<br /> 响应时间：≤25 ns<br /> 冲击放电电流（10/350us）:12.5kA<br /> 标称放电电流（8/20us）:12.5kA<br /> ?；に?le; 1200V。<br /> 具有工作状态显示功能，带遥信报警干接点。<br /> <br /> 根据三相单相电选型4P或2P<br /> <strong>推荐型号AM-L/N-BD 4P或AM-L/N-BD 2P</strong><br /> <br /> 作者:安迅防雷www.myjacobswell.com</span><br /> <br /> <br /> </div> 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