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class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/yonglekeji/637205586874160156/6111974.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zhjq448" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/yonglekeji/637205586874160156/6111974.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="elcic3e" 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>云南省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>云南起重機(jī)**變頻器維修廠家,變頻器</p><p><span>***更新：</span>2020-12-06 00:17:48</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="omyzstk" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">云南永樂(lè)科技有限公司</a></p><p><span>聯(lián)系人：</span>姜先生</p><p><span>郵箱: </span>1738252619@qq.com</p><p><span>電話: </span>18987299299</p><p><span>傳真: </span>0871_63853456</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0871-63853456</p><p><span>地址: </span>昆明市官渡區(qū)昌宏路宸瑞五金機(jī)電市場(chǎng)B5-4號(hào)</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="cplctf2" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="g3mb7jk" class="box"><p><p> <span style="font-size:14px;">變頻器讓電機(jī)傳動(dòng)系統(tǒng)實(shí)現(xiàn)了兩個(gè)愿望，一是讓電機(jī)實(shí)現(xiàn)了更高效率的運(yùn)行；二是讓電機(jī)可以做到工況可控，這樣也避免了人力。但擺在工程師面前的問(wèn)題是：電機(jī)負(fù)載類型那么多，對(duì)所配變頻器的性能要求也是千差萬(wàn)別，如何為電機(jī)選擇合適的變頻器呢？變頻器的選用，應(yīng)按照機(jī)械的類型、調(diào)速范圍、靜態(tài)速度精度、啟動(dòng)轉(zhuǎn)矩等來(lái)考慮，云南起重機(jī)**變頻器維修廠家，云南起重機(jī)**變頻器維修廠家，使之在滿足工藝和生產(chǎn)要求的同時(shí)，云南起重機(jī)**變頻器維修廠家，既好用，又經(jīng)濟(jì)。昆明永樂(lè)科技變頻器維修批發(fā)公司歡迎大家前來(lái)咨詢！價(jià)格實(shí)惠！</span> 昆明變頻器公司哪家好？云南起重機(jī)**變頻器維修廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南起重機(jī)**變頻器維修廠家,變頻器" src="http://tyunfile.71360.com/UploadFile/yonglekeji/637205586874160156/6111974.jpg"></div><p> <span style="font-size:14px;">變頻不是到處可以省電，有不少場(chǎng)合用變頻并不一定能省電。</span> </p> <p> <span style="font-size:14px;">作為電子電路，變頻器本身也要耗電（約額定功率的3-5%）。一臺(tái)1.5匹的空調(diào)自身耗電算下來(lái)也有20-30W,相當(dāng)于一盞長(zhǎng)明燈.變頻器在工頻下運(yùn)行，具有節(jié)電功能，是事實(shí)。但是他的前提條件是：</span> </p> <p> <span style="font-size:14px;">第1、大功率并且為風(fēng)機(jī)/泵類負(fù)載；</span> </p> <p> <span style="font-size:14px;">第2、裝置本身具有節(jié)電功能（軟件支持）；</span> </p> <p> <span style="font-size:14px;">第3、長(zhǎng)期連續(xù)運(yùn)行。</span> </p> <p> <span style="font-size:14px;">這是體現(xiàn)節(jié)電效果的三個(gè)條件。除此之外，無(wú)所謂節(jié)不節(jié)電，沒(méi)有什么意義。如果不加前提條件的說(shuō)變頻器工頻運(yùn)行節(jié)能，就是夸大或是商業(yè)炒做。知道了原委，你會(huì)巧妙的利用他為你服務(wù)。一定要注意使用場(chǎng)合和使用條件才好正確應(yīng)用，否則就是盲從、輕信而“受騙上當(dāng)”。<strong>（云南永樂(lè)科技變頻器銷售、維修）</strong></span> 云南建筑機(jī)械**變頻器批發(fā)銷售價(jià)格實(shí)惠，便宜就是硬道理歡迎來(lái)電咨詢！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南起重機(jī)**變頻器維修廠家,變頻器" src="http://tyunfile.71360.com/UploadFile/yonglekeji/637205601036406250/8895765.jpg"></div><p style="text-indent:25px"><span style="font-size:14px;">變頻器節(jié)能主要表現(xiàn)在風(fēng)機(jī)、水泵的應(yīng)用上。風(fēng)機(jī)、泵類負(fù)載采用變頻調(diào)速后，節(jié)電率為20%～60%，這是因?yàn)轱L(fēng)機(jī)、泵類負(fù)載的實(shí)際消耗功率基本與轉(zhuǎn)速的三次方成比例。當(dāng)用戶需要的平均流量較小時(shí)，風(fēng)機(jī)、泵類采用變頻調(diào)速使其轉(zhuǎn)速降低，節(jié)能效果非常明顯。而傳統(tǒng)的風(fēng)機(jī)、泵類采用擋板和閥門進(jìn)行流量調(diào)節(jié)，電動(dòng)機(jī)轉(zhuǎn)速基本不變，耗電功率變化不大。據(jù)統(tǒng)計(jì)，風(fēng)機(jī)、泵類電動(dòng)機(jī)用電量占全國(guó)用電量的31%，占工業(yè)用電量的50%。在此類負(fù)載上使用變頻調(diào)速裝置具有非常重要的意義。目前，應(yīng)用較成功的有恒壓供水、各類風(fēng)機(jī)、中央空調(diào)和液壓泵的變頻調(diào)速。</span></p><p style="text-indent:25px"><span style="font-size:14px;">單元串聯(lián)型變頻器：這是近幾年才發(fā)展起來(lái)的一種電路拓?fù)浣Y(jié)構(gòu)，它主要由輸入變壓器、功率單元和控制單元三大部分組成。采用模塊化設(shè)計(jì)，由于采用功率單元相互串聯(lián)的辦法解決了高壓的難題而得名，可直接驅(qū)動(dòng)交流電動(dòng)機(jī)，無(wú)需輸出變壓器，更不需要任何形式的濾波器。整套變頻器共有18個(gè)功率單元，每相由6臺(tái)功率單元相串聯(lián)，并組成Y形連接，直接驅(qū)動(dòng)電機(jī)。每臺(tái)功率單元電路、結(jié)構(gòu)完全相同，可以互換，也可以互為備用。變頻器的輸入部分是一臺(tái)移相變壓器，原邊Y形連接，副邊采用沿邊三角形連接，共18副三相繞組，分別為每臺(tái)功率單元供電。它們被平均分成Ⅰ、Ⅱ、Ⅲ三大部分，每部分具有6副三相小繞組，之間均勻相位偏移10度。<strong>（云南永樂(lè)科技變頻器銷售、維修）</strong></span>始終堅(jiān)持客戶至上、誠(chéng)信為先、互利共贏的宗旨。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南起重機(jī)**變頻器維修廠家,變頻器" src="http://tyunfile.71360.com/UploadFile/yonglekeji/637205586873398438/5769910.jpg"></div><p style="text-indent:25px"><span style="font-size:14px;">變頻器正確接地是提高控制系統(tǒng)靈敏度、降低噪聲能力的重要手段，變頻器接地端子E(G)接地電阻越小越好，接地導(dǎo)線截面積應(yīng)不小于2mm2，長(zhǎng)度應(yīng)控制在20m以內(nèi)。變頻器的接地必須與動(dòng)力設(shè)備接地點(diǎn)分開(kāi)，不能共地。信號(hào)輸入線的屏蔽層，應(yīng)接至E(G)上，其另一端絕不能接于地端，否則會(huì)引起信號(hào)變化波動(dòng)，使系統(tǒng)振蕩不止。變頻器與控制柜之間應(yīng)電氣連通，如果實(shí)際安裝有困難，可利用銅芯導(dǎo)線跨接。在變頻器中，一般都設(shè)有雷電吸收網(wǎng)絡(luò)，主要防止瞬間的雷電侵入，使變頻器損壞。但在實(shí)際工作中，特別是電源線架空引入的情況下，單靠變頻器的吸收網(wǎng)絡(luò)是不能滿足要求的。<strong>（云南永樂(lè)科技變頻器銷售、維修）</strong></span>變頻器公司哪家比較好？云南建筑機(jī)械**變頻器批發(fā)銷售</p><p style="text-indent:25px">云南變頻器公司哪家比較好？云南起重機(jī)**變頻器維修廠家</p><p style="text-indent:25px"><span style="font-size:14px;">變頻器(Variable-frequencyDrive，VFD)是應(yīng)用變頻技術(shù)與微電子技術(shù)，通過(guò)改變電機(jī)工作電源頻率方式來(lái)控制交流電動(dòng)機(jī)的電力控制設(shè)備。變頻器的應(yīng)用范圍很廣，從小型家電到大型的礦場(chǎng)研磨機(jī)及壓縮機(jī)。全球約1/3的能量是消耗在驅(qū)動(dòng)定速離心泵、風(fēng)扇及壓縮機(jī)的電動(dòng)機(jī)上，而變頻器的市場(chǎng)滲透率仍不算高。能源效率的***提升是使用變頻器的主要原因之一。變頻器技術(shù)和電力電子有密切關(guān)系，包括半導(dǎo)體切換元件、變頻器拓?fù)?、控制及模擬技術(shù)、以及控制硬件及固件的進(jìn)步等。<strong>（云南永樂(lè)科技變頻器銷售、維修）</strong></span>云南起重機(jī)**變頻器維修廠家</p><p style="text-indent:25px">云南永樂(lè)科技有限公司主要經(jīng)營(yíng)范圍是建筑、建材，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司業(yè)務(wù)涵蓋變頻器，自動(dòng)化系統(tǒng)集成，自動(dòng)化系統(tǒng)調(diào)試，工業(yè)安防系統(tǒng)等，價(jià)格合理，品質(zhì)有保證。公司秉持誠(chéng)信為本的經(jīng)營(yíng)理念，在建筑、建材深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢(shì)，打造建筑、建材良好品牌。永樂(lè)科技憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來(lái)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(lái)源地址: http://m.cdcfah.com/cp/2279186.html</p></div></div></div></div></div><div id="g2j77g7" 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