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src="https://tyunfile.71360.com/UploadFile/Shanghaiyubing/637417272717116473/1017174.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3larykg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Shanghaiyubing/637417272717116473/1017174.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3cjv2v7" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>山東老機(jī)電電氣更換哪里有,電氣更換</p><p><span>***更新：</span>2021-02-01 10:13:12</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="unz8mgc" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海玉冰電氣設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>吳經(jīng)理</p><p><span>郵箱: </span>1109020744@qq.com</p><p><span>電話: </span>13917970979</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.shyubing.cn</p><p><span>手機(jī): </span>021-517619</p><p><span>地址: </span>九亭鎮(zhèn)九新公路399號(hào)1幢14樓</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="mvhlmdu" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="yhtprdp" class="box"><p><p style="text-indent:25px">電氣維護(hù)的安全要求：保護(hù)接零在電源中性點(diǎn)直接接地的低壓電力系統(tǒng)中，將用電設(shè)備的金屬外殼與供電系統(tǒng)中的零線或**零線直接做電氣連接，稱為保護(hù)接零。它的作用是當(dāng)電氣設(shè)備的金屬外殼帶電時(shí)，短路電流經(jīng)零線而成閉合電路，使其變成單相短路故障，因零線的阻抗比較小，所以短路電流比較大，一般大于額定電流的幾倍甚至幾十倍，這樣大的單相短路將使保護(hù)裝置迅速而準(zhǔn)確的動(dòng)作，切斷事故電源，保證人身安全。其供電系統(tǒng)為接零保護(hù)系統(tǒng)，即TN系統(tǒng)。保護(hù)零線是否與工作零線分開，可將TN供電系統(tǒng)劃分為TN-C、TN-S和TN-C-S三種供電系統(tǒng)。不管采用保護(hù)接地還是保護(hù)接零，必須注意：在同一系統(tǒng)中不允許對(duì)一部分設(shè)備采取接地，對(duì)另一部分采取接零。因?yàn)樵谕幌到y(tǒng)中，山東老機(jī)電電氣更換哪里有，如果有的設(shè)備采取接地，有的設(shè)備采取接零，則當(dāng)采取接地的設(shè)備發(fā)生碰殼時(shí)，零線電位將升高，而使所有接零的設(shè)備外殼都帶上危險(xiǎn)的電壓。移動(dòng)式分配電箱，山東老機(jī)電電氣更換哪里有，山東老機(jī)電電氣更換哪里有、開關(guān)箱的下皮與地面的垂直距離為0.6～1.5m。山東老機(jī)電電氣更換哪里有</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東老機(jī)電電氣更換哪里有,電氣更換" src="https://tyunfile.71360.com/UploadFile/Shanghaiyubing/637417272717116473/1017174.png"></div><p style="text-indent:25px">電氣故障檢修的技巧： 1、熟悉電路原理，確定檢修方案當(dāng)一臺(tái)設(shè)備的電氣系統(tǒng)發(fā)生故障時(shí)，不要急于動(dòng)手拆卸，首先要了解該電氣設(shè)備產(chǎn)生故障的現(xiàn)象、經(jīng)過、范圍、原因．熟悉該設(shè)備及電氣系統(tǒng)的基本工作原理，分析各個(gè)具體電路．弄清電路中各級(jí)之間的相互聯(lián)系以及信號(hào)在電路中的來龍去脈，結(jié)合實(shí)際經(jīng)驗(yàn)，經(jīng)過周密思考，確定一個(gè)科學(xué)的檢修方案。 2、先機(jī)損，后電路電氣設(shè)備都以電氣一機(jī)械原理為基礎(chǔ)，特別是機(jī)電一體化的先進(jìn)設(shè)備，機(jī)械和電子在功能上有機(jī)配合，是一個(gè)整體的兩個(gè)部分。往往機(jī)械部件出現(xiàn)故陋，影響電氣系統(tǒng)，設(shè)備管理中華約定，許多電氣部件的功能就不起作用。因此不要被表面現(xiàn)象迷惑，電氣系統(tǒng)出現(xiàn)故障并不全部都是電氣本身問題，有可能是機(jī)械部件發(fā)生故障所造成的。因此先檢修機(jī)械系統(tǒng)所產(chǎn)生的故障，再排除電氣部分的故障，往往會(huì)收到事半功倍的效果。山東老機(jī)電電氣更換哪里有對(duì)于生疏的設(shè)備，還應(yīng)先熟悉電路原理和結(jié)構(gòu)特點(diǎn)，遵守相應(yīng)規(guī)則。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東老機(jī)電電氣更換哪里有,電氣更換" src="https://tyunfile.71360.com/UploadFile/Shanghaiyubing/637417437545466105/4967126.png"></div><p style="text-indent:25px">電氣設(shè)備維修是指為保持、恢復(fù)以及提升電氣設(shè)備技術(shù)狀態(tài)進(jìn)行的技術(shù)活動(dòng)。其中包括保持電氣設(shè)備良好技術(shù)狀態(tài)的維護(hù)、電氣設(shè)備劣化或發(fā)生故障后恢復(fù)其功能而進(jìn)行的修理以及提升電氣設(shè)備技術(shù)狀態(tài)進(jìn)行的技術(shù)活動(dòng)。電氣設(shè)備維修的基本內(nèi)容包括：電氣設(shè)備維護(hù)保養(yǎng)、電氣設(shè)備檢查檢測(cè)和電氣設(shè)備修理（包括故障修理和主動(dòng)修理）。電氣設(shè)備技術(shù)狀態(tài)劣化或發(fā)生故障后，為恢復(fù)其功能而進(jìn)行的技術(shù)活動(dòng)，包括各類計(jì)劃修理和計(jì)劃外的故障修理及事故修理。又稱電氣設(shè)備修理。電氣設(shè)備維修包含的范圍較廣，包括：為防止電氣設(shè)備劣化，維持電氣設(shè)備性能而進(jìn)行的清掃、檢查、潤(rùn)滑、緊固以及調(diào)整等日常維護(hù)保養(yǎng)工作；為測(cè)定電氣設(shè)備劣化程度或性能降低程度而進(jìn)行的必要檢查；為修復(fù)劣化，恢復(fù)電氣設(shè)備性能而進(jìn)行的修理活動(dòng)等。</p><p style="text-indent:25px">電氣維護(hù)是指技術(shù)工程師利用專業(yè)儀器對(duì)電氣設(shè)備，包括發(fā)電機(jī)、變壓器、電力線路、斷路器等設(shè)備的專業(yè)維護(hù)。電氣維護(hù)范圍： 1、電壓電流與頻率主要分析參數(shù)：電壓和電流的有效值、頻率應(yīng)用：通過對(duì)電壓電流波形分析，可以判斷是否存在諧波；通過對(duì)電壓電流的有效值的測(cè)試，可以初步判定是否存在電壓偏差或者電流不平衡情況。 2、諧波主要分析參數(shù)：總諧波畸變率，諧波次數(shù)，諧波產(chǎn)生原因諧波產(chǎn)生源：（a）電子開關(guān)型：主要為各種交直流換流裝置（整流器，逆變器）（b）電弧型：各種煉鋼電弧爐的點(diǎn)燃和劇變變動(dòng)形成的高度非線性使電流不規(guī)則的波動(dòng)。檢查、維修配電箱、開關(guān)箱時(shí)，必須將其前一級(jí)相應(yīng)的電源開關(guān)分閘斷電，并懸掛停電標(biāo)志牌，嚴(yán)禁帶電作業(yè)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東老機(jī)電電氣更換哪里有,電氣更換" src="https://tyunfile.71360.com/UploadFile/Shanghaiyubing/637417437741608570/6852070.png"></div><p style="text-indent:25px">掌握電氣故障排除的方法： (一)調(diào)整參數(shù)法有些情況，出現(xiàn)故障時(shí)，線路中元器件不一定壞，線路接觸也良好，只是由于某些物理量調(diào)整得不合適或運(yùn)行時(shí)間長(zhǎng)了，有可能因外界因素致使系統(tǒng)參數(shù)發(fā)生改變或不能自動(dòng)修正系統(tǒng)值，從而造成系統(tǒng)不能正常工作，這時(shí)應(yīng)根據(jù)設(shè)備的具體情況進(jìn)行調(diào)整。 (二)原理分析法根據(jù)控制系統(tǒng)的組成原理圖，通過追蹤與故障相關(guān)聯(lián)的信號(hào)，進(jìn)行分析判斷，找出故障點(diǎn)，并查出故障原因。使用本方法要求維修人員對(duì)整個(gè)系統(tǒng)和單元電路的工作原理有清楚的理解。 (三)比較、分析、判斷法它是根據(jù)系統(tǒng)的工作原理，控制環(huán)節(jié)的動(dòng)作程序以及它們之間的邏輯關(guān)系，結(jié)合故障現(xiàn)象，進(jìn)行比較、分析和判斷，減少測(cè)量與檢查環(huán)節(jié)，并迅速判斷故障范圍。對(duì)于調(diào)試和故障并存的電氣設(shè)備，應(yīng)先排除故障，再進(jìn)行調(diào)試，調(diào)試必須在電氣線路速的前提下進(jìn)行。山東老機(jī)電電氣更換哪里有</p><p style="text-indent:25px">應(yīng)先檢查設(shè)備有無明顯裂痕、缺損，了解其維修史、使用年限等，然后再對(duì)機(jī)內(nèi)進(jìn)行檢查。山東老機(jī)電電氣更換哪里有</p><p style="text-indent:25px">由于需要風(fēng)冷，如果空氣質(zhì)量不好，在進(jìn)入電機(jī)內(nèi)部時(shí)會(huì)帶進(jìn)粉塵。另外電機(jī)碳刷磨損后的粉末也會(huì)進(jìn)入電機(jī)內(nèi)部，因此需要定期進(jìn)行除塵。這時(shí)普通的風(fēng)機(jī)風(fēng)壓低，比較難清理干凈，要用壓縮空氣進(jìn)行吹掃。直流電機(jī)換向器正常情況是金黃色，表面形成氧化膜，碳刷磨損后的粉末粘到換向器以及換向器的溝槽內(nèi)，使換向器變成黑色，嚴(yán)重的會(huì)造成電機(jī)打火甚至燒壞換向器。這種情況下用壓縮空氣并不能吹下碳粉，需要用干凈的白布，蘸清洗劑或酒精用力將換向器上粘住的碳粉擦下來，然后使用鋼鋸條制成的鉤子將換向器溝槽中的碳粉鉤出來。做完后換向器表面的氧化膜可能會(huì)有所損傷，應(yīng)該在低負(fù)荷的情況下運(yùn)轉(zhuǎn)一段時(shí)間后逐漸增加載荷。山東老機(jī)電電氣更換哪里有</p><p style="text-indent:25px">上海玉冰電氣設(shè)備有限公司位于九亭鎮(zhèn)九新公路399號(hào)1幢14樓。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下老設(shè)備電氣更換，業(yè)擴(kuò)增容，按裝充電樁，廠房電線電纜改造深受客戶的喜愛。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠(chéng)信為本的理念，打造電工電氣良好品牌。玉冰電氣憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3111155.html</p></div></div></div></div></div><div id="kjvcelc" class="page-right twoColRt"><div id="s8coqct" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gzb2383" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="lpg3ok8" class="recomPic likePro"><a 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