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clearfix"><h1>淄博科恩軟啟動器價格淄博科恩電氣自動化技術(shù)供應(yīng)</h1><div id="v8vhbda" class="proBig"><div id="cgda2wq" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616797780381_keendianqi_8202757.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="m7wixoq" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616797780381_keendianqi_8202757.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="oiaczqs" 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>淄博科恩軟啟動器價格,科恩軟啟動器</p><p><span>***更新：</span>2020-07-08 11:20:14</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="rgy3df2" 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="rqi23o2" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="mgifrtf" class="box"><p><p> 電動機(jī)的啟動指標(biāo)啟動（startion）是指電動機(jī)從靜止?fàn)顟B(tài)開始轉(zhuǎn)動起來．直至達(dá)到穩(wěn)定運(yùn)行。對干任何一臺電動機(jī)．在啟動時．都有下列兩個基本的要求。啟動轉(zhuǎn)矩要足夠大．只有Tｎ>TL時．電動機(jī)才能改變原來的靜止?fàn)顟B(tài)．拖動生產(chǎn)機(jī)械運(yùn)轉(zhuǎn)。一般要求Tn≥()TL,Tn越大于TL．啟動過程所需要的時間就越短。啟動電流不要超過允許范圍。對三相異步電動機(jī)來說．由干啟動瞬間s=1，淄博科恩軟啟動器價格,旋轉(zhuǎn)磁場與轉(zhuǎn)子之間的相對運(yùn)動速度很大．轉(zhuǎn)子電路的感應(yīng)電動勢及電流都很大．所以．啟動電流遠(yuǎn)大干額定電流．在電源容量與電動機(jī)的額定功率相比不是足夠大時．會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，而且會延長電動機(jī)本身的啟動時間，淄博科恩軟啟動器價格。此外在啟動過干頻繁時，淄博科恩軟啟動器價格，還會引起電動機(jī)過熱。在這兩種情況下．就必須設(shè)法減小啟動電流．下面分別介紹籠型和繞線型異步電動饑的啟動方法．異步電動機(jī)啟動籠型異步電動機(jī)的直接啟動直接啟動又稱為全壓啟動．就是將電動機(jī)的定子繞組直接加上額定電壓啟動．直接啟動電流雖然很大．但因啟動時間很短．而且隨著轉(zhuǎn)子轉(zhuǎn)動起來后。電流很快減?。灰獑硬贿^于頻繁．不致引起電動機(jī)過熱。淄博科恩軟啟動器價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博科恩軟啟動器價格,科恩軟啟動器" src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616797780381_keendianqi_8202757.jpg"></div><p>污水處理廠該如何選擇軟啟動器。污水處理廠一般使用軟啟動器的場景是水泵上，那么該如何為其選擇軟啟動器呢。首先我們需要考慮到，污水處理廠其實(shí)是有兩種水泵的，一種是清水泵，一種是污水泵。首先清水泵。因?yàn)橹皇浅Ｒ?guī)的清水泵，所以我們只要選擇常規(guī)對應(yīng)功率的軟啟動器即可。并沒有太多需要注意的。對應(yīng)艾克威爾的品牌，我們推薦使用mg3系列軟啟動器，可以很好的解決水錘效應(yīng)。其次則是污水泵。污水泵和清水泵不同，有些需要處理的污水因?yàn)殡s志較多，甚至可能出現(xiàn)淤泥狀，這對電機(jī)本身也是增大了符合，瞬間啟動電流會比常規(guī)同等功率的電機(jī)大很多。那么這個時候我們就需要考慮，把軟啟動器加大一檔，甚至根據(jù)現(xiàn)場的情況，我們可以考慮加大兩檔處理。對應(yīng)艾克威爾的軟啟動器，我們推薦使用Mg6系列軟啟動器，加大一檔話，則是37KW的電機(jī)可以選用45KW的軟啟動器。淄博科恩軟啟動器價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博科恩軟啟動器價格,科恩軟啟動器" src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616797936241_keendianqi_9000823.jpg"></div><p style="text-indent:25px">軟啟動器（soft starter）是一種集電機(jī)軟起動、軟停車、多種保護(hù)功能于一體的新穎電機(jī)控制裝置。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)晶閘管及其電子控制電路。軟啟動器工作原理：軟啟器采用三相反并聯(lián)晶閘管作為調(diào)壓器，將其接入電源和電動機(jī)定子之間。這種電路如三相全控橋式整流電路。使用軟啟動器啟動電動機(jī)時，晶閘管的輸出電壓逐漸增加，電動機(jī)逐漸加速，直到晶閘管全導(dǎo)通，電動機(jī)工作在額定電壓的機(jī)械特性上，實(shí)現(xiàn)平滑啟動，降低啟動電流，避免啟動過流跳閘。軟啟動器起動方式：斜坡升壓軟起動、斜坡恒流軟起動、階躍起動、脈沖沖擊起動。軟啟動器的作用：軟起動時具有起動電流小、起動速度平穩(wěn)可靠、對電網(wǎng)沖擊小等優(yōu)點(diǎn)，且起動曲線可根據(jù)現(xiàn)場實(shí)際工況調(diào)整，從而減少了起動時對設(shè)備的沖擊力，降低了對設(shè)備的損害，延長了使用壽命。主要目的是降低起動電壓與電流。</p><p> 采用矢量控制方式的通用變頻器不僅可在調(diào)速范圍內(nèi)與直流電動機(jī)相匹配，而且可以控制異步電動機(jī)產(chǎn)生的轉(zhuǎn)矩。轉(zhuǎn)矩控制根據(jù)不同的數(shù)學(xué)算法其功能結(jié)構(gòu)也不相同，如圖所示是一種典型的采用矢量方式實(shí)現(xiàn)的轉(zhuǎn)矩控制功能框圖。先是根據(jù)轉(zhuǎn)矩設(shè)定值計(jì)算出轉(zhuǎn)差頻率，并與變頻器獲得的反饋速度(一般用編碼器PG)或是直接推算的電動機(jī)速度相加，在速度限制下輸出同步頻率。很顯然，在轉(zhuǎn)矩控制方式下，速度調(diào)節(jié)器ASR并不起直接作用，也無法控制速度。轉(zhuǎn)矩控制時，變頻器的輸出頻率自動負(fù)載速度的變化，但輸出頻率的變化受設(shè)定的加速和減速時間影響，如需要加快的速度，需要將加速和減速時間設(shè)得短一些。轉(zhuǎn)矩分正向轉(zhuǎn)矩和反向轉(zhuǎn)矩，其設(shè)定可以通過模擬量端子的電平來決定，該轉(zhuǎn)矩方向與運(yùn)行指令的方向（即正轉(zhuǎn)和反轉(zhuǎn)）無關(guān)。當(dāng)模擬量信號為0～10V時，為正轉(zhuǎn)矩，即電動機(jī)正轉(zhuǎn)方向的轉(zhuǎn)矩指令（從電動機(jī)的輸出軸看是逆時針轉(zhuǎn)）；當(dāng)模擬量信號為-10～0V時，為負(fù)轉(zhuǎn)矩，即電動機(jī)反轉(zhuǎn)方向的轉(zhuǎn)矩指令（從電動機(jī)的輸出軸看是順時針轉(zhuǎn)）。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博科恩軟啟動器價格,科恩軟啟動器" src="http://tyunfile.71360.com/UpLoadFile/2019/4/13/14/636907616797936241_keendianqi_9481264.jpg"></div><p> 變頻器和軟啟動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改變頻率。變頻器具備所有軟啟動器和其他啟動控制裝置的功能，且啟動特性上較之其他電動機(jī)啟動裝置有比較大的優(yōu)勢.因此完全可以用作電動機(jī)的軟啟動控制。但之所以目前在電動機(jī)的啟動控制領(lǐng)城軟啟動器仍占據(jù)主要位置.是由于變頻器固有的一些劣勢，且短期內(nèi)很難克服.只有克服了這些劣勢之后.變頻器才有可能取代軟啟動器。變頻器的特點(diǎn)如下。(1)啟動轉(zhuǎn)矩大，功率因數(shù)高。因?yàn)殡妱訖C(jī)的功率因數(shù)與工作頻率有關(guān)，在電動機(jī)低速運(yùn)行時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機(jī)從低頻起步.且在整個啟動過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.或啟動期間采取減載卸載等措施時.變頻器容量可以比電動機(jī)容量小。當(dāng)然，啟動完成后變頻器需要退出運(yùn)行。(3)啟動電流小。變頻器一電動機(jī)拖動系統(tǒng)允許的啟動時間可以很長。因?yàn)樵谶@期間，電動機(jī)電流可以不超過電動機(jī)額定電流，因此，不論是變頻器、電動機(jī)還是其他元器件均沒有超常地發(fā)熱。淄博科恩軟啟動器價格</p><p style="text-indent:25px">淄博科恩軟啟動器價格</p><p style="text-indent:25px">為什么現(xiàn)在的電機(jī)比以前更容易燒毀？由于絕緣技術(shù)的不斷發(fā)展，在電機(jī)的設(shè)計(jì)上既要求增加出力，又要求減小體積，使新型電機(jī)的熱容量越來越小，過負(fù)荷能力越來越弱；再由于生產(chǎn)自動化程度的提高，要求電機(jī)經(jīng)常運(yùn)行在頻繁的起動、制動、正反轉(zhuǎn)以及變負(fù)荷等多種方式，對電機(jī)保護(hù)裝置提出了更高的要求。另外，電機(jī)的應(yīng)用面更廣，常工作于環(huán)境極為惡劣的場合，如潮濕、高溫、多塵、腐蝕等場合。所有這些，造成了現(xiàn)在的電機(jī)比過去更容易損壞，尤其是過載、短路、缺相、掃膛等故障出現(xiàn)頻率比較高。淄博科恩軟啟動器價格</p><p style="text-indent:25px">淄博科恩電氣自動化技術(shù)有限公司創(chuàng)立于2014-04-08，總部位于山東省淄博市，是一家機(jī)械產(chǎn)品、電子產(chǎn)品、五金電器、低壓電器、變頻器及配件、儀器儀表、電線電纜、電腦及配件、自動化成套系統(tǒng)、化工產(chǎn)品的銷售。(依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動)的公司?？贫鞴?yīng)深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的[ "科恩變頻器", "防爆柜", "山東變頻器代理", "電機(jī)智能軟啟動器" ]。依托效率源扎實(shí)的技術(shù)積累、完善的產(chǎn)品體系、深厚的行業(yè)基礎(chǔ)，目前擁有員工數(shù)51~100人，年?duì)I業(yè)額達(dá)到50-100萬元。科恩供應(yīng)創(chuàng)始人李寧，始終關(guān)注客戶，以優(yōu)化創(chuàng)新的科技，竭誠為客戶提供比較好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/534897.html</p></div></div></div></div></div><div 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