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class="searchLt"><div id="qumtqn4" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會</a></div><div id="zyfxz8j" class="clearfix searchWrap"><div id="l2d2wko" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="fmj7p7c" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="y2nht88" class="twoCol"><div id="8ft4uth" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_diandongjive/">電動機</a>?<a href="http://www.cdcfah.com/cp/third-diandongjive_jsbyddjrv/">機械設備用電動機</a>?青島高壓電機山東聯(lián)創(chuàng)電機供應</p><div id="wyu9jgs" class="leftbox clearfix"><h1>青島高壓電機山東聯(lián)創(chuàng)電機供應</h1><div id="laxmtx2" class="proBig"><div id="eiuta7c" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268005781034_lcdianji_8761235.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="tpzjqv7" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268005781034_lcdianji_8761235.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="7tvszgv" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>青島高壓電機</p><p><span>***更新：</span>2020-06-04 10:06:42</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8ovcoah" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">山東聯(lián)創(chuàng)電機有限公司</a></p><p><span>聯(lián)系人：</span>李道松</p><p><span>郵箱: </span>505920191@qq.com</p><p><span>電話: </span>13906437131</p><p><span>傳真: </span>0533_7781170</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0533-7788099</p><p><span>地址: </span>山東省淄博市臨淄區(qū)朱臺鎮(zhèn)魏家村</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8zbdk8h" class="page-proshow02"><p class="title">詳細說明</p><div id="igifmoa" class="box"><p><p> 日常工作中最常見的三相異步電動機有鼠籠型電機和繞線式電機。這是根據(jù)它們的轉子結構來分類的。從外觀上看，明顯的區(qū)別就是繞線式電機帶轉子滑環(huán)，鼠籠式電機不帶。鼠籠型電機轉子繞組是自己短路的繞組，在轉子在每個槽中放有一根導體，導體比鐵芯長，在鐵芯兩端用兩個端<span style="display:none;"></span>環(huán)將導體短接，形成短路繞組。若將鐵芯去掉，剩下的繞組形狀似松鼠籠子，故稱鼠籠式繞組。 </p> <p> <span style="display:none;"></span>繞線型電機：轉子是銅線繞制的線圈，線圈末端是通過滑環(huán)引到啟動控制設備上。 </p> <p> 繞線式電機 </p> <p> 優(yōu)缺點如下： </p> <p> 1.鼠籠式異步電動機： </p> <p> 優(yōu)點：結構簡單，青島高壓電機，啟動方便，運行可靠，體積小，堅固耐用，便于維護、檢修和安裝，成本低等。 </p> <p> 缺點：啟動轉矩較小，功率因數(shù)較低，轉速不易調(diào)節(jié)，青島高壓電機，直接啟動時啟動電流大。正常情況下，鼠籠型電機冷狀態(tài) </p> <p> 下運行啟動2-3次，每次間隔時間不得小于5分鐘。熱狀態(tài)下運行啟動一次。鼠籠式異步電動機在頻繁啟動時，青島高壓電機，還 </p> <p> 容易造成鼠籠斷條。 </p> <p> 2.繞線式異步電動機： </p> <p> 優(yōu)點：通過在轉子回路中串入外加電阻，降低了啟動電流和轉速，增加了啟動轉矩。可以改善電動機的啟動和調(diào) </p> <p> 速性能。 </p> <p> 缺點：結構復雜，維護較麻煩，運行可靠性較差，價格較貴。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青島高壓電機" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268005781034_lcdianji_8761235.jpg"></div><p> 三相異步電動機的缺相運行是指三相供電電源缺少一相或三相繞組有一相從電源斷開而造成的一種電動機運行狀態(tài)，三相異步電動機的繞組燒毀大多數(shù)是由于缺相運行造成的。下面，我介紹一個簡便方法針對缺相故障進行保護。一、對于星形接法電動機，由于三相交流電的失量和為零，其中性點對地電壓理論上為零，但實際上三相電壓不會平衡，總要相差幾伏電壓。當電機缺相運行時，由于定子三相電壓不平衡，中性點對地的零序電壓升高，當電機滿負荷運行時，此零序電壓可達達25～45伏。此時，可通過串接于電機中性線上的零序電壓繼電器來對電機進行保護，如圖1所示。電機正常運行時，中性點對地電壓較低，Kv不動作。，中性蘭對地電壓升高，使Kv動作，它的常閉觸點斷開而切斷KM線圈電源，隨即主電路斷電。二、對于定子繞組三角形接法的電機，可將星形接法的三只電容器(容量2～4uF為好)接于三角形繞組上，引出人為中性點，如圖2所示。由于實際電路中，中性點對地總有幾伏電壓，因此可以把電壓繼電器整定到12～24伏。此外也可使用市場上的小型中間繼電器(12或24伏)來代替電壓繼電器。這樣更方便些。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青島高壓電機" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099267902270512_lcdianji_8897764.jpg"></div><p> 在電氣工程施工中，如何計算不同電壓等級的三相電動機額定電流呢，這里有一個口訣：容量除以千伏數(shù)，商乘系數(shù)點七六。這個口訣具體是怎么應用的呢?下面為您詳細闡述。由公式及口訣均可說明容量相同的電壓等級不同的電動機的額定電流是不相同的，即電壓千伏數(shù)不一樣，去除以相同的容量，所得“商數(shù)”顯然不相同，不相同的商數(shù)去乘相同的系數(shù)0.76，所得的電流值也不相同。若把以上口訣叫做通用口訣，則可推導出計算220、380、660、3.6kV電壓等級電動機的額定電流**計算口訣，用**計算口訣計算某臺三相電動機額定電流時，容量千瓦與電流安培關系直接倍數(shù)化，省去了容量除以千伏數(shù)，商數(shù)再乘系數(shù)0.76。三相二百二電機，千瓦三點五安培。常用三百八電機，一個千瓦兩安培。低壓六百六電機，千瓦一點二安培。高壓三千伏電機，四個千瓦一安培。高壓六千伏電機，八個千瓦一安培。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青島高壓電機" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099267999546634_lcdianji_3110362.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/143445.html</p></div></div></div></div></div><div id="jtp884z" class="page-right twoColRt"><div id="7pry39n" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ccjlqro" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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