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id="dtpf9d9" class="searchLt"><div id="pdjp5vt" 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="xdrhxl9" class="clearfix searchWrap"><div id="lhx7hft" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關(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="rxfnlhf" class="container"><ul><li id = "index_index"><a href="http://m.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://m.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://m.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a 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src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268047434618_lcdianji_5605250.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pvtr7db" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268047434618_lcdianji_5605250.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="z7r77hx" 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(guān)鍵詞：</span>河北電機(jī)生產(chǎn)</p><p><span>***更新：</span>2020-06-21 10:18:04</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="fvllrxd" 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: </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)朱臺鎮(zhèn)魏家村</p><p>[當(dāng)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="zxnntpn" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="v7l5pvl" class="box"><p><p> 看：每天**時看電動機(jī)工作電流的大小和變化，看周圍有沒有漏水、滴水，會引起電動機(jī)絕緣低擊穿而燒壞。還要看電動機(jī)**是否有影響其通風(fēng)散熱環(huán)境的物件？看風(fēng)扇端蓋、扇葉和電動機(jī)外部是否過臟需要清潔？要確保其冷卻散熱效果。無論誰發(fā)現(xiàn)問題，都應(yīng)及時處理，河北電機(jī)生產(chǎn)。聽：認(rèn)真細(xì)聽電動機(jī)的運(yùn)行聲音是否異常，因機(jī)房噪音較大，可借助于螺絲刀或聽棒等輔助工具，貼近電動機(jī)兩端聽，如果經(jīng)常聽，不但能發(fā)現(xiàn)電動機(jī)及其拖動設(shè)備的不良振動，連內(nèi)部軸承油的多少都能判斷，從而及時作出添加軸承油，或更換新軸承等相應(yīng)的措施處理，避免電動機(jī)軸承缺油干磨而堵轉(zhuǎn)，河北電機(jī)生產(chǎn)、走外圓、掃膛燒壞。多數(shù)廠家考慮到大型電動機(jī)解體更換軸承的困難，會采用開式軸承，定期（2000h）用油加油時需注意使用電機(jī)**標(biāo)示軸承油（-35℃～+140℃），并將下端放油口打開或另一邊的悶頭螺絲拆卸開，河北電機(jī)生產(chǎn)，以便將舊油擠換出來（注意補(bǔ)充油定額）防止加油時因壓力大把油擠到電動機(jī)內(nèi)部，運(yùn)轉(zhuǎn)時濺到定轉(zhuǎn)子上，影響電動機(jī)的散熱功能等。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北電機(jī)生產(chǎn)" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099268047434618_lcdianji_5605250.jpg"></div><p> <p> 電機(jī)主要由導(dǎo)磁材料(硅鋼片)、線圈繞組(銅導(dǎo)線)及機(jī)座外殼部件等組成。其工作原理即物理學(xué)中的電磁感應(yīng)定律。當(dāng)機(jī)械能轉(zhuǎn)變?yōu)殡娔芊Q為發(fā)電機(jī)，反之電能轉(zhuǎn)變?yōu)闄C(jī)械能就是電動機(jī)，就是人們通常所說的馬達(dá)。電動機(jī)按供電電源不同，又分為直流電機(jī)和交流電機(jī)。交流電動機(jī)又分為單相和三相異步電動機(jī)。三相異步電動機(jī)是中小電機(jī)的主導(dǎo)產(chǎn)品，其作為**重要的動力設(shè)備之一，將電能轉(zhuǎn)換為機(jī)械能，驅(qū)動各類機(jī)械設(shè)備，廣泛應(yīng)用于化工、紡織、冶金、建筑、農(nóng)機(jī)、礦山、輕工等行業(yè)，大量作為風(fēng)機(jī)、水泵、壓縮機(jī)、機(jī)床、印刷機(jī)、造紙機(jī)、紡織機(jī)、軋鋼機(jī)、空調(diào)機(jī)、城市地鐵、輕軌交通以及礦山電動車輛等主要機(jī)械驅(qū)動的動力源，年耗電量占全國總發(fā)電量的60%以上，因此是一種產(chǎn)量大配套面廣的機(jī)電產(chǎn)品，對國民經(jīng)濟(jì)、節(jié)能和環(huán)保以及人民生活等各個領(lǐng)域有著極其密切的關(guān)系和重要的影響，發(fā)揮了不可或缺和不可替代的作用。電動機(jī)與節(jié)能、環(huán)保和人民的生活有極其密切關(guān)系，在我們的日常生活中發(fā)揮著重要作用。正確選用電機(jī)直接關(guān)系到人身的安全和設(shè)備的可靠運(yùn)行。 </p> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北電機(jī)生產(chǎn)" src="http://tyunfile.71360.com/UpLoadFile/2019/11/21/9/637099267902270512_lcdianji_8897764.jpg"></div><p style="text-indent:25px">所謂三相異步電動機(jī)的啟動是指電動機(jī)從接入電源開始轉(zhuǎn)動起，到達(dá)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(jī)啟動瞬間；定子繞組啟動電流很大，可達(dá)額定值的4~7倍。三相異步電動機(jī)為什么會有這么大的啟動電流呢？因為異步電動機(jī)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(yīng)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(jī)啟動時），從而影響到接在電網(wǎng)上的其它設(shè)備的正常運(yùn)行。使電動機(jī)繞組發(fā)熱，絕緣老化，從而縮短了電動機(jī)的使用壽命。特別是對經(jīng)常需要啟動的電動機(jī)影響較大。啟動瞬間，由于三相異步電動機(jī)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(fù)載轉(zhuǎn)矩則電動機(jī)將無法啟動。綜上所述，三相異步電動機(jī)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(dāng)?shù)膯臃椒ā?/p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/336373.html</p></div></div></div></div></div><div id="pfdt7b9" class="page-right twoColRt"><div id="b9pvlbh" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="pfvbzn7" class="recomPic likePro"><a 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