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main_content begin--> <div class="maincontent"> <!-- left begin --> <div class="news_left"> <div class="brand_news_details"> <h1>甉|°”癄¡§‘åQšå…³äºŽèÊY启动器和变频器,常见故障和区åˆ?/h1><table style="border-bottom:1px dotted #e4e4e4;" align="center"><tr><td><div class="news_mes">文章来源åQšã€å·¥ä¸šç”µå™¨ç½‘ã€?作者:ã€?ã€?点击åQ?span id="HitNum"></span>‹Æ?旉™—´åQ?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¡§‘åQšå…³äºŽèÊY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é›†è½¯å¯åŠ¨ã€èÊY停èžR、轻载节能和多功能保护于一体的甉|œºæŽ§åˆ¶è£…备。实现在整个启动˜q‡ç¨‹ä¸­æ— å†²å‡»è€Œåã^滑的启动甉|œºåQŒè€Œä¸”可根据电动机负蝲的特性来调节启动˜q‡ç¨‹ä¸­çš„各种参数åQŒå¦‚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é›†è½¯å¯åŠ¨ã€èÊY停èžR、轻载节能和多功能保护于一体的甉|œºæŽ§åˆ¶è£…备。实现在整个启动˜q‡ç¨‹ä¸­æ— å†²å‡»è€Œåã^滑的启动甉|œºåQŒè€Œä¸”可根据电动机负蝲的特性来调节启动˜q‡ç¨‹ä¸­çš„各种参数åQŒå¦‚限流倹{€å¯åŠ¨æ—¶é—´ç­‰ã€?/span> </p> <p style="text-indent:2em;"> 变频器(Variable-frequency DriveåQŒVFDåQ‰æ˜¯åº”用变频技术与微电子技术,通过改变甉|œºå·¥ä½œç”‰|ºé¢‘率方式来控制交‹¹ç”µåŠ¨æœºçš„电力控制设备ã€?span style="color:#FFFFFF;">工业视频¾|‘报道(http://v.cnelc.comåQ?看工业视频很¾_‘Ö½©-工业短视频(http://vm.cnelc.comåQ?/span> </p> <p style="text-indent:2em;"> 变频器主要由整流åQˆäº¤‹¹å˜ç›´æµåQ‰ã€æ×o波、逆变åQˆç›´‹¹å˜äº¤æµåQ‰ã€åˆ¶åŠ¨å•å…ƒã€é©±åŠ¨å•å…ƒã€æ£€‹¹‹å•å…ƒå¾®å¤„理单元½{‰ç»„成。变频器靠内部IGBT的开断来调整输出甉|ºçš„电压和频率åQŒæ ¹æ®ç”µæœºçš„实际需要来提供其所需要的甉|ºç”µåŽ‹åQŒè¿›è€Œè¾¾åˆ°èŠ‚能、调速的目的åQŒå¦å¤–,变频器还有很多的保护功能åQŒå¦‚˜q‡æµã€è¿‡åŽ‹ã€è¿‡è½½ä¿æŠ¤ç­‰½{‰ã€‚随着工业自动化程度的不断提高åQŒå˜é¢‘器也得åˆîCº†éžå¸¸òq¿æ³›çš„应用ã€?</p> <p style="text-indent:2em;"> <strong>软启动器常见故障åQ?/strong> </p> <p style="text-indent:2em;"> 1、在调试˜q‡ç¨‹ä¸­å‡ºçŽ°è“v动报¾~ºç›¸æ•…éšœåQŒèÊY起动器故障灯亮,甉|œºæ²¡ååº”ã€?</p> <p style="text-indent:2em;"> 2、用户在使用˜q‡ç¨‹ä¸­å‡ºçŽ°è“v动完毕,旁èµ\接触器不吸合现象ã€?</p> <p style="text-indent:2em;"> 3、用户在起动˜q‡ç¨‹ä¸­ï¼Œå¶å°”有出现蟩½Iºæ°”开关的现象ã€?</p> <p style="text-indent:2em;"> 4、用户在使用软è“v动器时出现显½Cºå±æ— æ˜¾½Cºæˆ–者是出现ä¹Þq åQŒèÊY起动器不工作ã€?</p> <p style="text-indent:2em;"> 5、èÊY起动器在起动时报故障åQŒèÊY起动器不工作åQŒç”µæœºæ²¡æœ‰ååº”ã€?</p> <p style="text-indent:2em;"> <strong>变频器常见故障及解决æ–ÒŽ³•åQ?/strong> </p> <p style="text-indent:2em;"> 1、过‹¹æ•…éš?</p> <p style="text-indent:2em;"> ˜q‡ç”µ‹¹æ•…障一般可分äؓ加速、减速和恒速过甉|µã€?</p> <p style="text-indent:2em;"> 主要原因是è“v动加速时间太短,负荷½Hç„¶å¢žåŠ åQŒé€†å˜å™¨è¾“出短路,负荷分配不均åQŒé€†å˜å™¨ä¸Žç”‰|œºå®šw‡ä¸åŒ¹é…ï¼Œå†…部整流侧或逆变器侧元äšg损坏åQŒç”µæºç¼ºç›¸ï¼Œè¾“出断线åQŒç”µæœºå†…部故障,接地故障。等ã€?</p> <p style="text-indent:2em;"> ‹‚€ä¿®æ–¹æ³•å¦‚下:故障‹‚€æŸ¥æ—¶åQŒå…ˆæ–­å¼€è´Ÿè²åQŒæ£€æŸ¥å˜é¢‘器。如果在断开负蝲后仍然存在过甉|µæ•…éšœåQŒåˆ™æ„å‘³ç€å˜é¢‘器的内部部äšg出现故障åQŒéœ€è¦è¿›ä¸€æ­¥æ£€æŸ¥å’Œ¾l´æŠ¤ã€?</p> <p style="text-indent:2em;"> 采取相应措施åQšåšg长加速时é—ß_¼Œè®¾è®¡è´Ÿè·åˆ†é…åQŒæ£€æŸ¥çº¿è·¯ï¼Œé˜²æ­¢òq²æ‰°å’Œæœºæ¢°æŒ¯åŠ¨ï¼Œå‡å°‘负荷½Hå˜ã€?</p> <p style="text-indent:2em;"> 2、过压故éš?</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ã€?/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="å…Ïx³¨æœ‰æƒŠå–?" /></div> <div class="news_bot_mes">中国工业电器¾|‘:此内容è{载于合作媒体或互联网其它¾|‘ç«™åQŒä¸­å›½å·¥ä¸šç”µå™¨ç½‘登蝲此文å‡ÞZºŽä¼ é€’更多信息之目的åQŒåƈ不意味着赞同其观ç‚ÒŽˆ–证实其描˜qŽÍ¼</br>新闻、技术文章投½E¿QQåQ?28246603 邮箱åQšnews@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¡§‘åQšå¸¦ä½ äº†è§£ä¸€ä¸‹ä»€ä¹ˆæ˜¯å¼‚构计算</a></li><li>· <a href="/text/32/200207/AD100909605_1.html" target="_blank">甉|°”癄¡§‘åQšNORGREN比例阀安装前检å?/a></li><li>· <a href="/text/32/200207/AD100909604_1.html" 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