日照中型高壓電機(jī) 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="用三相交流電驅(qū)動(dòng)的交流電動(dòng)機(jī)。三相電動(dòng)機(jī)它是指當(dāng)電機(jī)的三相定子繞組（各相差120度電角度），日照中型高壓電機(jī)，通入三相交流電后，將產(chǎn)生一個(gè)旋轉(zhuǎn)磁場(chǎng)，該旋轉(zhuǎn)磁場(chǎng)切割轉(zhuǎn)子繞組來(lái)發(fā)電，日照中型高壓電機(jī)。它包括三相同步電動(dòng)機(jī)與三相異步電動(dòng)機(jī)，日照中"><meta name="keywords" content="日照中型高壓電機(jī)"><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="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>日照中型高壓電機(jī)</p><p><span>***更新：</span>2020-06-29 01:20:31</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="vkmjvhj" 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="wgdk7dk" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="kzwykho" class="box"><p><p style="text-indent:25px">用三相交流電驅(qū)動(dòng)的交流電動(dòng)機(jī)。三相電動(dòng)機(jī)它是指當(dāng)電機(jī)的三相定子繞組（各相差120度電角度），日照中型高壓電機(jī)，通入三相交流電后，將產(chǎn)生一個(gè)旋轉(zhuǎn)磁場(chǎng)，該旋轉(zhuǎn)磁場(chǎng)切割轉(zhuǎn)子繞組來(lái)發(fā)電，日照中型高壓電機(jī)。它包括三相同步電動(dòng)機(jī)與三相異步電動(dòng)機(jī)，日照中型高壓電機(jī)。三相電動(dòng)機(jī)是指當(dāng)電動(dòng)機(jī)的三相定子繞組（各相差120度電角度），通入三相交流電后，將產(chǎn)生一個(gè)旋轉(zhuǎn)磁場(chǎng)，該旋轉(zhuǎn)磁場(chǎng)切割轉(zhuǎn)子繞組，從而在轉(zhuǎn)子繞組中產(chǎn)生感應(yīng)電流（轉(zhuǎn)子繞組是閉合通路），載流的轉(zhuǎn)子導(dǎo)體在定子旋轉(zhuǎn)磁場(chǎng)作用下將產(chǎn)生電磁力，從而在電機(jī)轉(zhuǎn)軸上形成電磁轉(zhuǎn)矩，驅(qū)動(dòng)電動(dòng)機(jī)旋轉(zhuǎn)，并且電機(jī)旋轉(zhuǎn)方向與旋轉(zhuǎn)磁場(chǎng)方向相同。<span style="display:none;"></span></p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="日照中型高壓電機(jī)" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268003754854_lcdianji_5546368.jpg"></div><p style="text-indent:25px">現(xiàn)代電機(jī)通常都是高速運(yùn)轉(zhuǎn)的，它的運(yùn)轉(zhuǎn)速度每分鐘能夠達(dá)到數(shù)百甚至數(shù)千轉(zhuǎn)，這樣高的運(yùn)轉(zhuǎn)速度要進(jìn)行高低速的變換是相對(duì)困難的，但是很多應(yīng)用場(chǎng)合恰恰就有這樣的需求。因此，就需要現(xiàn)代電機(jī)為其提供轉(zhuǎn)換轉(zhuǎn)速的配件系統(tǒng)。但是這樣的轉(zhuǎn)換系統(tǒng)必然會(huì)增加整個(gè)電機(jī)系統(tǒng)的大小，并且也會(huì)影響到設(shè)備的精確度和工作效率。這時(shí)候，只有使現(xiàn)代電機(jī)驅(qū)動(dòng)向直接驅(qū)動(dòng)發(fā)展，才能有效的解決這一問(wèn)題?，F(xiàn)代工業(yè)的發(fā)展經(jīng)常需要電機(jī)的極速化，即經(jīng)常需要電機(jī)保持極高或者極低的速度?，F(xiàn)代電機(jī)要極速化的要求與電機(jī)的直驅(qū)化緊密相關(guān)。電機(jī)的極速化，不僅有助于實(shí)現(xiàn)電機(jī)的直驅(qū)化，而且可以提高電機(jī)的工作效率和設(shè)備的精確度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="日照中型高壓電機(jī)" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099267968998074_lcdianji_6703273.jpg"></div><p style="text-indent:25px">所謂三相異步電動(dòng)機(jī)的啟動(dòng)是指電動(dòng)機(jī)從接入電源開(kāi)始轉(zhuǎn)動(dòng)起，到達(dá)到額定轉(zhuǎn)速為止的這一過(guò)程。根據(jù)理論分析和實(shí)際測(cè)定，三相異步電動(dòng)機(jī)啟動(dòng)瞬間；定子繞組啟動(dòng)電流很大，可達(dá)額定值的4~7倍。三相異步電動(dòng)機(jī)為什么會(huì)有這么大的啟動(dòng)電流呢？因?yàn)楫惒诫妱?dòng)機(jī)在啟動(dòng)瞬間轉(zhuǎn)子并不能立馬就轉(zhuǎn)動(dòng)起來(lái)，此時(shí)轉(zhuǎn)子電磁感應(yīng)的反電勢(shì)尚未建立起來(lái)，所以外電壓全部加在沒(méi)有反電勢(shì)的定子繞組上，其電路電流就是外電壓除以繞組的阻抗（用符號(hào)Z表示，是一種對(duì)電流其阻礙作用的能力，單位為歐姆公式Z=V/I表示），所以定子繞組電流很大。這么大的啟動(dòng)電流將帶來(lái)以下不良后果：使電網(wǎng)電壓產(chǎn)生波動(dòng)（特別是容量較大的電動(dòng)機(jī)啟動(dòng)時(shí)），從而影響到接在電網(wǎng)上的其它設(shè)備的正常運(yùn)行。使電動(dòng)機(jī)繞組發(fā)熱，絕緣老化，從而縮短了電動(dòng)機(jī)的使用壽命。特別是對(duì)經(jīng)常需要啟動(dòng)的電動(dòng)機(jī)影響較大。啟動(dòng)瞬間，由于三相異步電動(dòng)機(jī)轉(zhuǎn)子電路功率因素較低，啟動(dòng)轉(zhuǎn)矩并不很大。如果啟動(dòng)轉(zhuǎn)矩小于負(fù)載轉(zhuǎn)矩則電動(dòng)機(jī)將無(wú)法啟動(dòng)。綜上所述，三相異步電動(dòng)機(jī)啟動(dòng)時(shí)的主要缺點(diǎn)是啟動(dòng)電流較大。為了減小啟動(dòng)電流，必須采用適當(dāng)?shù)膯?dòng)方法。</p></p><br /><p>文章來(lái)源地址: 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