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tcPro"><section class="home-main container clearfix"><div id="qsj3ki3" class="twoCol"><div id="prxtacs" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-_diyadianqifj/">低壓電器</a>?<a href="http://www.cdcfah.com/cp/third-diyadianqifj_qidongqikb/">起動(dòng)器</a>?淄博科恩軟啟動(dòng)器廠家報(bào)價(jià) 淄博科恩電氣自動(dòng)化技術(shù)供應(yīng)</p><div id="aearnjz" class="leftbox clearfix"><h1>淄博科恩軟啟動(dòng)器廠家報(bào)價(jià) 淄博科恩電氣自動(dòng)化技術(shù)供應(yīng)</h1><div id="3n7bmeq" class="proBig"><div id="eiz8ozv" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616798092101_keendianqi_8628190.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2ud77s7" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616798092101_keendianqi_8628190.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="g7yfwif" 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>淄博科恩軟啟動(dòng)器廠家報(bào)價(jià)</p><p><span>***更新：</span>2020-06-28 06:17:38</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="vtaw33n" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">淄博科恩電氣自動(dòng)化技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>李寧</p><p><span>郵箱: </span>shandongken198@163.com</p><p><span>電話: </span>13371560696</p><p><span>傳真: </span>0533_2855952</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0533-2855952</p><p><span>地址: </span>昌國西路111號魯中五金機(jī)電城東區(qū)F-15號</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="73m3oev" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vo3iov2" class="box"><p><p> 它的主要構(gòu)成是串接于電源與被控電機(jī)之間的三相反并聯(lián)閘管及其電子控制電路。運(yùn)用不同的方法，控制三相反并聯(lián)閘管的導(dǎo)通角，使被控電機(jī)的輸入電壓按不同的要求而變化，就可實(shí)現(xiàn)不同的功能。變頻器（Variable-frequencyDrive，VFD）是應(yīng)用變頻技術(shù)與微電子技術(shù)，通過改變電機(jī)工作電源頻率方式來控制交流電動(dòng)機(jī)的電力控制設(shè)備。變頻器主要由整流（交流變直流）、濾波、逆變（直流變交流）、制動(dòng)單元、驅(qū)動(dòng)單元、檢測單元微處理單元等組成。變頻器靠內(nèi)部IGBT的開斷來調(diào)整輸出電源的電壓和頻率，根據(jù)電機(jī)的實(shí)際需要來提供其所需要的電源電壓，進(jìn)而達(dá)到節(jié)能、調(diào)速的目的，另外，變頻器還有很多的保護(hù)功能，如過流、過壓、過載保護(hù)等等。隨著工業(yè)自動(dòng)化程度的不斷提高，變頻器也得到了非常的應(yīng)用。軟啟動(dòng)器和變頻器是兩種完全不同用途的產(chǎn)品，淄博科恩軟啟動(dòng)器廠家報(bào)價(jià)。變頻器是用于需要調(diào)速的地方，其輸出不但改變電壓而且同時(shí)改變頻率；軟啟動(dòng)器實(shí)際上是個(gè)調(diào)壓器，用于電機(jī)起動(dòng)時(shí)，淄博科恩軟啟動(dòng)器廠家報(bào)價(jià)，輸出只改變電壓并沒有改變頻率。變頻器具備所有軟起動(dòng)器功能，但它的價(jià)格比軟啟動(dòng)器貴得多，淄博科恩軟啟動(dòng)器廠家報(bào)價(jià)，結(jié)構(gòu)也復(fù)雜得多。軟啟動(dòng)器只是改變電源電壓，相當(dāng)于降壓起動(dòng)器。變頻器要比軟啟動(dòng)器復(fù)雜得多，價(jià)格也貴得多。變頻器也有軟啟動(dòng)功能。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博科恩軟啟動(dòng)器廠家報(bào)價(jià)" src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616798092101_keendianqi_8628190.jpg"></div><p> 軟啟動(dòng)器以體積小,轉(zhuǎn)矩可以調(diào)節(jié)、啟動(dòng)平穩(wěn)、沖擊小并具有軟停機(jī)功能等優(yōu)點(diǎn)得到了越來越多的應(yīng)用,大有取代傳統(tǒng)的自耦減壓、星三角變換降壓啟動(dòng)的趨勢。由于軟啟動(dòng)器是近年來新發(fā)展起來的啟動(dòng)設(shè)備,缺少相應(yīng)的設(shè)計(jì)及使用經(jīng)驗(yàn)等籠形異步電動(dòng)機(jī)是應(yīng)用**的用電設(shè)備。由于電動(dòng)機(jī)直接啟動(dòng)時(shí)的沖擊電流很大，特別是大容量電動(dòng)機(jī)直接啟動(dòng)會(huì)對電網(wǎng)及其他負(fù)載造成干擾甚至危害電網(wǎng)的安全運(yùn)行，所以按不同工況，采用許多種減壓啟動(dòng)方式。早期的方式有串聯(lián)電抗或電阻、串聯(lián)自耦變壓器星三角轉(zhuǎn)換等。從20世紀(jì)70年代起，工程上開始推廣利用晶閘管交流調(diào)壓技術(shù)制作的軟啟動(dòng)器。這種軟啟動(dòng)器是集電動(dòng)機(jī)軟啟動(dòng)、軟停車、輕載節(jié)能和多種保護(hù)功能于一體的新穎電動(dòng)機(jī)控制裝置，國外稱為softstarter。軟啟動(dòng)器的構(gòu)成主要是串接于電源與被控電動(dòng)機(jī)之間的三相反并聯(lián)晶閘管及其電子控制電路。軟啟動(dòng)器的工作原理是，控制電路運(yùn)用不同的方法，控制三相反并聯(lián)晶閘管的導(dǎo)通角，使電動(dòng)機(jī)輸入電壓從零以預(yù)設(shè)的函數(shù)關(guān)系逐漸上升，直至啟動(dòng)結(jié)束，賦予電動(dòng)機(jī)全電壓，實(shí)現(xiàn)軟啟動(dòng)。在軟啟動(dòng)過程中，電動(dòng)機(jī)啟動(dòng)轉(zhuǎn)矩逐漸增加，轉(zhuǎn)速也逐漸增加。在上述基礎(chǔ)上，把功率因數(shù)控制技術(shù)結(jié)合進(jìn)去。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博科恩軟啟動(dòng)器廠家報(bào)價(jià)" src="https://tyunfile.71360.com/UploadFile/keendianqi/637235132860195313/2957293.jpg"></div><p> 電動(dòng)機(jī)的啟動(dòng)指標(biāo)啟動(dòng)（startion）是指電動(dòng)機(jī)從靜止?fàn)顟B(tài)開始轉(zhuǎn)動(dòng)起來．直至達(dá)到穩(wěn)定運(yùn)行。對干任何一臺(tái)電動(dòng)機(jī)．在啟動(dòng)時(shí)．都有下列兩個(gè)基本的要求。啟動(dòng)轉(zhuǎn)矩要足夠大．只有Tｎ>TL時(shí)．電動(dòng)機(jī)才能改變原來的靜止?fàn)顟B(tài)．拖動(dòng)生產(chǎn)機(jī)械運(yùn)轉(zhuǎn)。一般要求Tn≥()TL,Tn越大于TL．啟動(dòng)過程所需要的時(shí)間就越短。啟動(dòng)電流不要超過允許范圍。對三相異步電動(dòng)機(jī)來說．由干啟動(dòng)瞬間s=1,旋轉(zhuǎn)磁場與轉(zhuǎn)子之間的相對運(yùn)動(dòng)速度很大．轉(zhuǎn)子電路的感應(yīng)電動(dòng)勢及電流都很大．所以．啟動(dòng)電流遠(yuǎn)大干額定電流．在電源容量與電動(dòng)機(jī)的額定功率相比不是足夠大時(shí)．會(huì)引起輸電線路上電壓降的增加．造成供電電壓的明顯下降．不僅影響了同一供電系統(tǒng)中其他負(fù)載的工作，而且會(huì)延長電動(dòng)機(jī)本身的啟動(dòng)時(shí)間。此外在啟動(dòng)過干頻繁時(shí)，還會(huì)引起電動(dòng)機(jī)過熱。在這兩種情況下．就必須設(shè)法減小啟動(dòng)電流．下面分別介紹籠型和繞線型異步電動(dòng)饑的啟動(dòng)方法．異步電動(dòng)機(jī)啟動(dòng)籠型異步電動(dòng)機(jī)的直接啟動(dòng)直接啟動(dòng)又稱為全壓啟動(dòng)．就是將電動(dòng)機(jī)的定子繞組直接加上額定電壓啟動(dòng)．直接啟動(dòng)電流雖然很大．但因啟動(dòng)時(shí)間很短．而且隨著轉(zhuǎn)子轉(zhuǎn)動(dòng)起來后。電流很快減?。灰獑?dòng)不過于頻繁．不致引起電動(dòng)機(jī)過熱。 </p></p><br /><p>文章來源地址: 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