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target="_blank">案例应用</a> >> <span>正文</span></div> <!-- main_content begin--> <div class="maincontent"> <!-- left begin --> <div class="news_left"> <div class="brand_news_details"> <h1>关于无扰动快速切换装置DCM635系列在石油化工典型供电系统中的应用分?/h1><table style="border-bottom:1px dotted #e4e4e4;" align="center"><tr><td><div class="news_mes">文章来源:【本站原创?作者:南京国高电气 点击?span id="HitNum"></span>?时间?span id="dTime">2021/1/28 17:44:59</span><input type="hidden" id="ID" value="100923319"/><input type="hidden" id="TypeID" value="2"/></div> </td> <td><div id="ckepop"></div></td></tr></table><div id="Content" style="display:none;">[关于无扰动快速切换装置DCM635系列在石油化工典型供电系统中的应用分析]:【摘要】简要概述石油化工系统配电系统,DCM635系列无扰动快速切换装置在石油化工典型供电系统的工作过程,无扰动快切装置的特点,无扰动装置在石油化工配电系统供电可靠性的意义。【关键词】无扰动快切、备?..</div><div class="brand_news_con"><p class="MsoNormal"> <span>【摘要】简要概述石油化工系统配电系统,</span>DCM635<span>系列无扰动快速切换装置在石油化工典型供电系统的工作过程,无扰动快切装置的特点,无扰动装置在石油化工配电系统供电可靠性的意义?/span> </p> <p class="MsoNormal"> 【关键词】无扰动快切、备自投切换、厂用电切换、用电连续?</p> <p class="MsoNormal">   </p> <p class="MsoNormal"> 一、概?</p> <p class="MsoNormal">   </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> 石化行业是国民经济的支柱行业之一,基本上是大型和特大型联合企业,是国家的重点企业。石化行业由于生产工艺流程的特殊性,供电质量要求很高,电网公司供电或自备电厂的供电都会因故障或负荷冲击等原因,产生计划外停电、过电压或晃电等现象。因石化行业大量电机负载特性,非正常停电现象的发生往往会引起设备停运或空转、工艺流程中断,甚至直接导致重大事故?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> <span>对大多数企业来书低压备自投装置可以满足使用要求,通过装设</span>DCM631<span>系列低压备自投对进线分段以及发电机进行自动投切,完全满足停电的自动恢复,而石化企业往往装设有大量的电动机负荷,而各电动机的容量、参数不一致,功率从几个千瓦到一百多千瓦不等,十点后电动机在短时间内讲继续旋转,电动机转入发电机状态进行励磁发电,母线电压为多台规格不同的电机发电合成的复合电压,传统备自投为检无压延时投切,此时的低电压已经导致电机自动失锁停机,需要再起动恢复生产,而此时生产工艺已经丢失,备自投装置的使用效果并不甚理想。实际中往往由于多台电机起动的冲击非常大,每一台的冲击为额定的好几倍,这样严重的导致切换后保护起动,导致切换失败,造成大范围停电,严重影响用电可靠性以及石化企业用电安全?/span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> 无扰动快速切换装置,尤其对于石化企业存在大量的感应电动机的情况,当需要快速切换时可以从快速切换,同期切换,残压切换和延时切换中优选较佳的切换模式,完成无扰动投切?</p> <p class="MsoNormal">   </p> <p class="MsoNormal" style="margin-left:0.0000pt;text-indent:0.0000pt;"> 二、无扰动快速切换装置切换过程简?</p> <p class="MsoNormal">   </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> DCM635<span>系列电源无扰动快速切换装置提供七种起动方式。手动起动时支持并联、同时和串联。误跳支持串联,其他五种起动方式支持串联、同时切换方式。并联切换方式只有快速切换实现方式,串联和同时支持快速、同捕、残压和长延时四种切换实现方式?/span>  </p> <p class="MsoNormal" align="center" style="text-align:center;"> <br /> </p> <p class="MsoNormal" style="margin-left:0.0000pt;text-indent:0.0000pt;"> 三、无扰动切换装置功能以及特点 </p> <p class="MsoNormal">   </p> <p class="MsoNormal"> 3.1<span>主要功能</span> </p> <p class="MsoNormal">   </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?装置适用于两种接线系统:进线、母?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?具有手动起动、保护起动、失压起动、误跳起动、无流起动、逆功率起动等多种起动方式 </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?事故切换、非工况切换(失压、开关误跳)功能 </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?并联、串连、同时三种开关切换顺序选择 </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?快速实现待合闸两侧的快速、同捕、残压、长延时切换 </p> <p class="MsoNormal" style="text-indent:21.0000pt;">   </p> <p class="MsoNormal"> 3.2<span>辅助功能</span> </p> <p class="MsoNormal">   </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?<span>PT</span><span>断线</span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?备用电源失电 </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?开关异常闭?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?合闸回路测时 </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?智能故障录波 </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?全息黑匣子记?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?装置自检故障告警 </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?智能切换闭锁识别 </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?母联开关电流保护(母联方式?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?智能卸载出口(选配?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?定值远方召唤和修改 </p> <p class="MsoNormal">   </p> <p class="MsoNormal"> 3.3<span>装置特点</span> </p> <p class="MsoNormal">   </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?采用了双?span>32</span><span>?/span><span>DSP</span><span>微处理器,快切内核和人机界面内核独立</span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?实时多任务操作系统及<span>C++</span><span>编程技术,可实现在线编?/span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?开关合闸时间精准统计,自动适应开关老化及开关更?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?实时系统自检,系统工作电源?span>AD</span><span>状态、内存状态实时自检,确保稳定可?/span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?抗干扰设计,较高<span>EMC</span><span>电磁兼容等级试验,软硬件复合闭锁架构</span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?大屏幕双显示(液晶汉化显示和<span>LED</span><span>显示),方便运行人员巡检 </span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?硬件互换性好,方便用户维护及减少备件的数?</p> <p class="MsoNormal" style="text-indent:21.0000pt;"> ?采用<span>6U</span><span>?/span><span>19/3</span><span>英寸标准机箱,背插式结构,可就地安装在开关柜上或集中组屏</span> </p> <p class="MsoNormal">   </p> <p class="MsoNormal" style="margin-left:0.0000pt;text-indent:0.0000pt;"> 四、结束语 </p> <p class="MsoNormal">   </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> <span>石油化工企业采用</span>DCM635<span>系列无扰动快速切换装置,可灵活适用于单母分段接线方式、单母接线方式的电源切换系统。当任意一路进线电源失去时?/span><span>DCM635</span><span>装置均能投入另一侧进线电源?/span><span>DCM635</span><span>系列装置经历了数次事故切换和正常切换,表现出极高的可靠性?/span> </p> <p class="MsoNormal" style="text-indent:21.0000pt;"> 由于在设计和调试阶段,充分地考虑石化企业负荷情况,通过和我公司技术人员认真沟通,做好了各种可能出现情况的模拟实验,在运行中严格运行管理,从多个石化现场投入运行后实际动作结果来看,装置均能正确动作、准确记录、运行维护简洁,很大程度提高了石化企业供电可靠性、维护的便利性,为石化企业选择的无扰动切换控制方案?</p></div><div class="meneame"><span class="disabled">< </span><span class="current">1</span> <span class="disabled">> </span></div> <div style="text-align: center;padding-top: 10px;"><img src="/images/code.jpg" alt="关注有惊?" /></div> <div class="news_bot_mes">中国工业电器网:此内容转载于合作媒体或互联网其它网站,中国工业电器网登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述!</br>新闻、技术文章投稿QQ?28246603 邮箱:news@cnelc.com</div> <h2 class="related">相关阅读</h2> <ul class="related_con"> <li>· <a href="/Article/9/210128/AD100923320_1.html" target="_blank">专题:晃电的危害及抗晃电的技术措?/a></li><li>· <a 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