西藏大型高壓電機(jī)廠(chǎng)家排名山東聯(lián)創(chuàng)電機(jī)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 不但要對(duì)檢查中發(fā)現(xiàn)的問(wèn)題及時(shí)采取補(bǔ)救措施，還要按保養(yǎng)周期（每月）對(duì)電動(dòng)機(jī)進(jìn)行螺絲、接線(xiàn)緊固，拆解檢查、清潔保養(yǎng)等。如電動(dòng)機(jī)端蓋4個(gè)固定螺絲全部松脫，會(huì)造成掃膛運(yùn)轉(zhuǎn)燒壞；電動(dòng)機(jī)接線(xiàn)螺栓松動(dòng)虛接造"><meta name="keywords" content="西藏大型高壓電機(jī)廠(chǎng)家排名"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta 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class="searchbox"><div id="hbdace8" class="searchLt"><div id="bubyphg" 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(huì)</a></div><div id="edv2ed7" class="clearfix searchWrap"><div id="fi3syve" class="searchInput"><input type="text" name="keywords" placeholder="請(qǐng)輸入搜索關(guān)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="hafifmt" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁(yè)</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(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = 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class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268025127156_lcdianji_2008886.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cgikrvf" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268025127156_lcdianji_2008886.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hgszb3d" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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(guān)鍵詞：</span>西藏大型高壓電機(jī)廠(chǎng)家排名</p><p><span>***更新：</span>2020-05-26 09:26:36</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="jnz777l" 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(jī)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(huà): </span>13906437131</p><p><span>傳真: </span>0533_7781170</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0533-7788099</p><p><span>地址: </span>山東省淄博市臨淄區(qū)朱臺(tái)鎮(zhèn)魏家村</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="nc8dfzl" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="eyax8dd" class="box"><p><p> 不但要對(duì)檢查中發(fā)現(xiàn)的問(wèn)題及時(shí)采取補(bǔ)救措施，還要按保養(yǎng)周期（每月）對(duì)電動(dòng)機(jī)進(jìn)行螺絲、接線(xiàn)緊固，拆解檢查、清潔保養(yǎng)等。如電動(dòng)機(jī)端蓋4個(gè)固定螺絲全部松脫，會(huì)造成掃膛運(yùn)轉(zhuǎn)燒壞；電動(dòng)機(jī)接線(xiàn)螺栓松動(dòng)虛接造成缺相燒壞；電動(dòng)機(jī)風(fēng)扇葉脫落抵住機(jī)體造成堵轉(zhuǎn)而燒壞；電動(dòng)機(jī)軸承潤(rùn)滑不良、運(yùn)行溫度高，而未及時(shí)補(bǔ)充潤(rùn)滑油或更換軸承造成電動(dòng)機(jī)燒壞；電動(dòng)機(jī)因天氣潮濕絕緣電阻下降，不及時(shí)烘烤提高絕緣造成擊穿；工段內(nèi)電動(dòng)機(jī)燒壞是因?yàn)闆](méi)有及時(shí)檢查、緊固所致；還是因?yàn)殡m已發(fā)現(xiàn)問(wèn)題，但沒(méi)做維護(hù)保養(yǎng)補(bǔ)救所致。無(wú)論是不看不做，還是只看不做，**終都會(huì)造成故障或。拆檢電動(dòng)機(jī)時(shí)如需更換軸承，要盡可能用進(jìn)口的，國(guó)內(nèi)的會(huì)有不少是翻新的舊軸承，質(zhì)量難以保證。如發(fā)現(xiàn)軸承外圓與端蓋軸承座配合不緊密，即軸承走外圓時(shí)，要根據(jù)其程度不同，視情采用端蓋軸承座內(nèi)圈打麻點(diǎn)、墊銅皮或鑲銅套消除。一定要定準(zhǔn)中心點(diǎn)否則不久又會(huì)損壞，西藏大型高壓電機(jī)廠(chǎng)家排名。投入運(yùn)行前，西藏大型高壓電機(jī)廠(chǎng)家排名，西藏大型高壓電機(jī)廠(chǎng)家排名，要再次確認(rèn)軸伸出端徑向擺動(dòng)與端蓋等緊固情況，轉(zhuǎn)子轉(zhuǎn)動(dòng)是否靈活，繞組引線(xiàn)連接是否正確等等。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西藏大型高壓電機(jī)廠(chǎng)家排名" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268025127156_lcdianji_2008886.jpg"></div><p> 日常工作中，遇到一臺(tái)三相異步電機(jī)，往往這樣問(wèn)，這臺(tái)電機(jī)是幾極的？比如是2極、4極、6極、8極……然后可 </p> <p> 以通過(guò)它的極數(shù)判斷它的額定轉(zhuǎn)速。那么電機(jī)的極數(shù)和轉(zhuǎn)速有什么關(guān)系呢？電機(jī)的極數(shù)是指每相線(xiàn)圈在定子圓周內(nèi)均勻分布的磁極數(shù)。磁極都是成對(duì)出現(xiàn)，N極和S極，所以一臺(tái)電機(jī)的極數(shù)<span style="display:none;"></span>**少是2極。級(jí)數(shù)越多，轉(zhuǎn)速越低，極數(shù)越少，轉(zhuǎn)速越高。轉(zhuǎn)速和極數(shù)的關(guān)系可通過(guò)公式：n=60f/p計(jì)算。n：轉(zhuǎn)速。 </p> <p> 60：60秒，我們平時(shí)所說(shuō)的這臺(tái)電機(jī)的轉(zhuǎn)速多少，是指這臺(tái)電機(jī)每分鐘旋轉(zhuǎn)的周數(shù)，也就是 60秒旋轉(zhuǎn)的周數(shù)。 </p> <p> f:電網(wǎng)頻率，我國(guó)為50HZ。 </p> <p> p：電機(jī)極對(duì)數(shù)，2極電機(jī)，對(duì)數(shù)是1；4極電機(jī)，對(duì)數(shù)是2；8極電機(jī)，對(duì)數(shù)是4。比如一臺(tái)2極電機(jī)，轉(zhuǎn)速n=60秒 </p> <p> ×50HZ/極對(duì)數(shù)1=3000轉(zhuǎn)。但這是同步轉(zhuǎn)速，異步電機(jī)，轉(zhuǎn)子轉(zhuǎn)速低于定子旋轉(zhuǎn)磁場(chǎng)轉(zhuǎn)速，所以，異步轉(zhuǎn)速還涉 </p> <p> 及到電機(jī)轉(zhuǎn)差率的因素，轉(zhuǎn)差率=（定子轉(zhuǎn)速-轉(zhuǎn)子轉(zhuǎn)速）/定子轉(zhuǎn)速，不同廠(chǎng)家生產(chǎn)的電機(jī)轉(zhuǎn)差率也不同，通常在 </p> <p> 10％以?xún)?nèi)，一般在4％左右。 </p> <p> 異步轉(zhuǎn)速和轉(zhuǎn)差率關(guān)系：N=(60F/P)×(1-S%)，所以2極電機(jī)異步轉(zhuǎn)速=3000×（1-4%）=2880轉(zhuǎn)左右。 </p> <p> 同樣算法，6極電機(jī)異步轉(zhuǎn)速=（60秒×50赫茲/極對(duì)數(shù)3）×（1-轉(zhuǎn)差率4%）=960轉(zhuǎn)左右。 </p> <span style="display:none;"></span><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西藏大型高壓電機(jī)廠(chǎng)家排名" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268004534154_lcdianji_9149080.jpg"></div><p> 高壓電機(jī)直接啟動(dòng)就是在全電壓條件下直接啟動(dòng)電機(jī)。如果電網(wǎng)條件允許，可以采用直接啟動(dòng)。但在實(shí)際生產(chǎn)過(guò)程中往往由于電網(wǎng)容量有限，很少采用直接啟動(dòng)。由于采用直接啟動(dòng)時(shí)，啟動(dòng)電流大，使電壓下降幅度較大，對(duì)于供電系統(tǒng)有較大的沖擊，如果壓降超過(guò)一定值，有可能導(dǎo)致上級(jí)變電所跳閘。故在實(shí)際運(yùn)行中很少采用這種直接啟動(dòng)方法。串聯(lián)電抗器啟動(dòng)就是在電機(jī)啟動(dòng)的時(shí)候串入電抗器，以限制和降低電機(jī)啟動(dòng)時(shí)的啟動(dòng)電流及電網(wǎng)壓降，當(dāng)電機(jī)運(yùn)行穩(wěn)定且電流達(dá)到一定值時(shí)，切除電抗器變?yōu)殡姍C(jī)直接啟動(dòng)模式。由于啟動(dòng)過(guò)程中電機(jī)端的電壓也下降，容易導(dǎo)致啟動(dòng)轉(zhuǎn)矩不夠，在啟動(dòng)過(guò)程中還會(huì)出現(xiàn)一個(gè)二次沖擊的過(guò)程。自耦變壓器啟動(dòng)是指電動(dòng)機(jī)啟動(dòng)時(shí)利用自耦變壓器來(lái)降低加在電動(dòng)機(jī)定子繞組上的啟動(dòng)電壓。待電動(dòng)機(jī)啟動(dòng)后，再使電動(dòng)機(jī)與自耦變壓器脫離，從而在全壓下正常運(yùn)行。優(yōu)點(diǎn)是可以按容許的啟動(dòng)電流和所需的啟動(dòng)轉(zhuǎn)矩來(lái)選擇自耦變壓器副邊的不同抽頭實(shí)現(xiàn)降壓?jiǎn)?dòng)，而且不論電動(dòng)機(jī)定子繞組采用星形接法或三角形接法都可以使用。缺點(diǎn)是設(shè)備的體積較大，因而成本較貴。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" 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