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class="news_mes">文章来源Q【工业电器网?作者:??点击Q?span id="HitNum"></span>?旉Q?span id="dTime">2020/1/14 9:29:03</span><input type="hidden" id="ID" value="100909366"/><input type="hidden" id="TypeID" value="2"/></div> </td> <td><div id="ckepop"></div></td></tr></table><div id="Content" style="display:none;">[甉|癄Q关于Y启动器和变频器,常见故障和区别]:什么是软启动器和变频器软启动器是一U集软启动、Y停R、轻载节能和多功能保护于一体的甉|控制装备。实现在整个启动q程中无冲击而^滑的启动甉|Q而且可根据电动机负蝲的特性来调节启动q程中的各种参数Q如限流...</div><div class="brand_news_con"><p style="text-indent:2em;"> <strong>什么是软启动器和变频器</strong> </p> <p style="text-indent:2em;"> <span>软启动器是一U集软启动、Y停R、轻载节能和多功能保护于一体的甉|控制装备。实现在整个启动q程中无冲击而^滑的启动甉|Q而且可根据电动机负蝲的特性来调节启动q程中的各种参数Q如限流倹{启动时间等?/span> </p> <p style="text-indent:2em;"> 变频器(Variable-frequency DriveQVFDQ是应用变频技术与微电子技术,通过改变甉|工作甉|频率方式来控制交电动机的电力控制设备?span style="color:#FFFFFF;">工业视频|报道(http://v.cnelc.comQ?看工业视频很_ֽ-工业短视频(http://vm.cnelc.comQ?/span> </p> <p style="text-indent:2em;"> 变频器主要由整流Q交变直流Q、o波、逆变Q直变交流Q、制动单元、驱动单元、检单元微处理单元{组成。变频器靠内部IGBT的开断来调整输出甉|的电压和频率Q根据电机的实际需要来提供其所需要的甉|电压Q进而达到节能、调速的目的Q另外,变频器还有很多的保护功能Q如q流、过压、过载保护等{。随着工业自动化程度的不断提高Q变频器也得C非常q泛的应用?</p> <p style="text-indent:2em;"> <strong>软启动器常见故障Q?/strong> </p> <p style="text-indent:2em;"> 1、在调试q程中出现v动报~相故障QY起动器故障灯亮,甉|没反应?</p> <p style="text-indent:2em;"> 2、用户在使用q程中出现v动完毕,旁\接触器不吸合现象?</p> <p style="text-indent:2em;"> 3、用户在起动q程中,偶尔有出现蟩I气开关的现象?</p> <p style="text-indent:2em;"> 4、用户在使用软v动器时出现显C屏无显C或者是出现qQY起动器不工作?</p> <p style="text-indent:2em;"> 5、Y起动器在起动时报故障QY起动器不工作Q电机没有反应?</p> <p style="text-indent:2em;"> <strong>变频器常见故障及解决ҎQ?/strong> </p> <p style="text-indent:2em;"> 1、过故?</p> <p style="text-indent:2em;"> q电故障一般可分ؓ加速、减速和恒速过甉|?</p> <p style="text-indent:2em;"> 主要原因是v动加速时间太短,负荷H然增加Q逆变器输出短路,负荷分配不均Q逆变器与甉|定w不匹配,内部整流侧或逆变器侧元g损坏Q电源缺相,输出断线Q电机内部故障,接地故障。等?</p> <p style="text-indent:2em;"> 修方法如下:故障查时Q先断开负蝲Q检查变频器。如果在断开负蝲后仍然存在过甉|故障Q则意味着变频器的内部部g出现故障Q需要进一步检查和l护?</p> <p style="text-indent:2em;"> 采取相应措施Qg长加速时_设计负荷分配Q检查线路,防止q扰和机械振动,减少负荷H变?</p> <p style="text-indent:2em;"> 2、过压故?</p> <p style="text-indent:2em;"> 变频器过电压故障是指机组直流母线电压过时变频器的过电压跳闸?/div><div class="meneame"><span class="disabled">< </span><span class="current">1</span> <a href="AD100909366_2.html">2</a></div> <div style="text-align: center;padding-top: 10px;"><img src="/images/code.jpg" alt="x有惊?" /></div> <div class="news_bot_mes">中国工业电器|:此内容{载于合作媒体或互联网其它|站Q中国工业电器网登蝲此文Z传递更多信息之目的Qƈ不意味着赞同其观Ҏ证实其描qͼ</br>新闻、技术文章投EQQQ?28246603 邮箱Qnews@cnelc.com</div> <h2 class="related">相关阅读</h2> <ul class="related_con"> <li>· <a href="/text/32/200210/AD100909626_1.html" target="_blank">甉|癄Q带你了解一下什么是异构计算</a></li><li>· <a href="/text/32/200207/AD100909605_1.html" target="_blank">甉|癄QNORGREN比例阀安装前检?/a></li><li>· <a href="/text/32/200207/AD100909604_1.html" target="_blank">甉|癄Q流量计需要怎样安装Q?/a></li><li>· <a href="/text/32/200207/AD100909603_1.html" target="_blank">甉|癄Q贺德克HYDAC压力传感器正?/a></li><li>· <a href="/text/32/200207/AD100909602_1.html" 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