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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>?江西三相同步電機山東聯(lián)創(chuàng)電機供應</p><div id="2jgikr9" class="leftbox clearfix"><h1>江西三相同步電機山東聯(lián)創(chuàng)電機供應</h1><div id="7zbyac4" class="proBig"><div id="ae8tl8m" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268045096718_lcdianji_1514897.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="q3pf2wy" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268045096718_lcdianji_1514897.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3ewo22r" 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>江西三相同步電機</p><p><span>***更新：</span>2020-05-27 12:26:31</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8olsuw4" 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="edfxjg4" class="page-proshow02"><p class="title">詳細說明</p><div id="3df3h3i" class="box"><p><p> 在電動機停止運行時，要定期（每月）用絕緣表測量其各相對地或相間絕緣電阻，并與上月測試結(jié)果相比較，以便及時發(fā)現(xiàn)絕緣缺點，發(fā)現(xiàn)不良時用烘潮燈烘烤以提高絕緣，避免因絕緣太低（推薦值>1兆歐）擊穿繞組燒壞電動機，江西三相同步電機。沒有烘潮電加熱的電動機除非特殊情況，不要隨意關掉加熱開關。在潮濕天氣和冬季時要特別注意電動機的防水、防潮和烘干。對露天及潮濕場所的電動機要特別注意水密，對懷疑嚴重受潮或濺過水的電動機，使用前更應認真檢查，江西三相同步電機。如果發(fā)現(xiàn)電動機浸泡水，江西三相同步電機，只要將電動機解體后抽出轉(zhuǎn)子，并用壓縮空氣吹干后，再用烤燈從電動機定子內(nèi)兩端烘烤，直止電動機絕緣升至正常。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西三相同步電機" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268045096718_lcdianji_1514897.jpg"></div><p style="text-indent:25px">單層繞組就是在每個定子槽內(nèi)只嵌置一個線圈有效邊的繞組，因而它的線圈總數(shù)只有電機總槽數(shù)的一半。單層繞組的優(yōu)點是繞組線圈數(shù)少工藝比較簡單；沒有層間絕緣故槽的利用率提高；單層結(jié)構(gòu)不會發(fā)生相間擊穿故障等。缺點則是繞組產(chǎn)生的電磁波形不夠理想，電機的鐵損和噪音都較大且起動性能也稍差，故單層繞組一般只用于小容量異步電動機中。單層繞組按照其線圈的形狀和端接部分排列布置的不同，可分為鏈式繞組、交叉鏈式繞組、同心式繞組和交叉式同心繞組等幾種繞組形式。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西三相同步電機" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099267909128352_lcdianji_6304000.jpg"></div><p style="text-indent:25px">所謂三相異步電動機的啟動是指電動機從接入電源開始轉(zhuǎn)動起，到達到額定轉(zhuǎn)速為止的這一過程。根據(jù)理論分析和實際測定，三相異步電動機啟動瞬間；定子繞組啟動電流很大，可達額定值的4~7倍。三相異步電動機為什么會有這么大的啟動電流呢？因為異步電動機在啟動瞬間轉(zhuǎn)子并不能立馬就轉(zhuǎn)動起來，此時轉(zhuǎn)子電磁感應的反電勢尚未建立起來，所以外電壓全部加在沒有反電勢的定子繞組上，其電路電流就是外電壓除以繞組的阻抗（用符號Z表示，是一種對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。這么大的啟動電流將帶來以下不良后果：使電網(wǎng)電壓產(chǎn)生波動（特別是容量較大的電動機啟動時），從而影響到接在電網(wǎng)上的其它設備的正常運行。使電動機繞組發(fā)熱，絕緣老化，從而縮短了電動機的使用壽命。特別是對經(jīng)常需要啟動的電動機影響較大。啟動瞬間，由于三相異步電動機轉(zhuǎn)子電路功率因素較低，啟動轉(zhuǎn)矩并不很大。如果啟動轉(zhuǎn)矩小于負載轉(zhuǎn)矩則電動機將無法啟動。綜上所述，三相異步電動機啟動時的主要缺點是啟動電流較大。為了減小啟動電流，必須采用適當?shù)膯臃椒ā?/p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西三相同步電機" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099267968998074_lcdianji_6703273.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/58293.html</p></div></div></div></div></div><div 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