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id="9mypwdu" class="twoCol"><div id="emtamtv" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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)器廠家淄博科恩電氣自動(dòng)化技術(shù)供應(yīng)</p><div id="8ctlszw" class="leftbox clearfix"><h1>淄博科恩軟啟動(dòng)器廠家淄博科恩電氣自動(dòng)化技術(shù)供應(yīng)</h1><div id="hgs8cs8" class="proBig"><div id="ptvkwiu" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616798092101_keendianqi_3627139.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cf7q3md" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616798092101_keendianqi_3627139.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="tnxyfw7" 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</p><p><span>***更新：</span>2020-06-10 11:03:33</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="u2vsz2q" 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(guó)西路111號(hào)魯中五金機(jī)電城東區(qū)F-15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="3f2lpl8" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="eye2izb" class="box"><p><p> 從長(zhǎng)期來(lái)看：變頻軟起將會(huì)成為軟起動(dòng)器（西馳分級(jí)變頻軟起動(dòng)器）的主流。各種形式的降壓軟起動(dòng)將與星三角起動(dòng)等技術(shù)一起歸并為傳統(tǒng)的起動(dòng)技術(shù)。隨著變頻器價(jià)格的逐漸下降，可靠性的進(jìn)一步提高，也隨著技術(shù)人員水平的提高，**為軟起動(dòng)而選用變頻器將不再會(huì)被人們認(rèn)為是一種。變頻軟起動(dòng)勝出的根本原因是：它可以在限流（起動(dòng)電流不超過(guò)電機(jī)額定電流值）的同時(shí)獲得大的起動(dòng)轉(zhuǎn)矩，可以實(shí)現(xiàn)包括軟停止在內(nèi)的各種起動(dòng)功能。對(duì)于**為軟起動(dòng)而制作的變頻器而言，淄博科恩軟啟動(dòng)器廠家，應(yīng)在起動(dòng)完成后使變頻器脫電，淄博科恩軟啟動(dòng)器廠家，使電動(dòng)機(jī)直掛電網(wǎng)，淄博科恩軟啟動(dòng)器廠家。這樣做的目的是節(jié)能，消除無(wú)謂的損耗。這種操作應(yīng)該在安全的不引起電流沖擊的條件下完成，或者叫做軟切換。軟切換的可能步驟是“先脫（電）后掛（網(wǎng)）”或“先掛后脫”，軟切換應(yīng)該在基本上不增加硬件（例如軟切換電抗器）的條件下主要靠軟件完成。 </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" src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616798092101_keendianqi_3627139.jpg"></div><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(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(cè)單元微處理單元等組成。變頻器靠?jī)?nèi)部IGBT的開(kāi)斷來(lái)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(lái)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(guò)流、過(guò)壓、過(guò)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。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)，輸出只改變電壓并沒(méi)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，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" src="https://tyunfile.71360.com/UploadFile/keendianqi/637235132860009766/2511509.jpg"></div><p> 變頻器和軟啟動(dòng)器是兩種完全不同用途的產(chǎn)品。變頻器主要是用于需要電動(dòng)機(jī)調(diào)速的地方，因此也被稱為變頻調(diào)速器，其輸出不但改變電壓而且同時(shí)改變頻率。變頻器具備所有軟啟動(dòng)器和其他啟動(dòng)控制裝置的功能，且啟動(dòng)特性上較之其他電動(dòng)機(jī)啟動(dòng)裝置有比較大的優(yōu)勢(shì).因此完全可以用作電動(dòng)機(jī)的軟啟動(dòng)控制。但之所以目前在電動(dòng)機(jī)的啟動(dòng)控制領(lǐng)城軟啟動(dòng)器仍占據(jù)主要位置.是由于變頻器固有的一些劣勢(shì)，且短期內(nèi)很難克服.只有克服了這些劣勢(shì)之后.變頻器才有可能取代軟啟動(dòng)器。變頻器的特點(diǎn)如下。(1)啟動(dòng)轉(zhuǎn)矩大，功率因數(shù)高。因?yàn)殡妱?dòng)機(jī)的功率因數(shù)與工作頻率有關(guān)，在電動(dòng)機(jī)低速運(yùn)行時(shí)工頻電源下的功率因數(shù)遠(yuǎn)低于低頻電源下的功率因數(shù)。變頻器可以控制電動(dòng)機(jī)從低頻起步.且在整個(gè)啟動(dòng)過(guò)程中在接近額定電流的條件下始終保持比較高的功率因數(shù)和接近額定轉(zhuǎn)矩的輸出轉(zhuǎn)矩。(2)輕載或空載條件下.或啟動(dòng)期間采取減載卸載等措施時(shí).變頻器容量可以比電動(dòng)機(jī)容量小。當(dāng)然，啟動(dòng)完成后變頻器需要退出運(yùn)行。(3)啟動(dòng)電流小。變頻器一電動(dòng)機(jī)拖動(dòng)系統(tǒng)允許的啟動(dòng)時(shí)間可以很長(zhǎng)。因?yàn)樵谶@期間，電動(dòng)機(jī)電流可以不超過(guò)電動(dòng)機(jī)額定電流，因此，不論是變頻器、電動(dòng)機(jī)還是其他元器件均沒(méi)有超常地發(fā)熱。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; 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