淄博科恩軟啟動(dòng)器訂購(gòu) 淄博科恩電氣自動(dòng)化技術(shù)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 想的電機(jī)保護(hù)器？理想的電機(jī)保護(hù)器不是功能**多，也不是所謂**技術(shù)的，而是應(yīng)該滿足現(xiàn)場(chǎng)實(shí)際需求，做到經(jīng)濟(jì)性和可靠性的統(tǒng)一，具有較高的性能價(jià)格比。根據(jù)現(xiàn)場(chǎng)的實(shí)際情況合理地選擇保護(hù)器的種類(lèi)、功能，湖"><meta name="keywords" content="淄博科恩軟啟動(dòng)器訂購(gòu)"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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clearfix"><h1>淄博科恩軟啟動(dòng)器訂購(gòu) 淄博科恩電氣自動(dòng)化技術(shù)供應(yīng)</h1><div id="mbyah42" class="proBig"><div id="icz2dcr" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/12/14/636906757481314664_keendianqi_4786054.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="j2elsmy" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/12/14/636906757481314664_keendianqi_4786054.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ys3xud3" 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)器訂購(gòu)</p><p><span>***更新：</span>2020-06-22 08:17:36</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="es3xuwy" 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="x8he3tz" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3evxulx" class="box"><p><p> 想的電機(jī)保護(hù)器？理想的電機(jī)保護(hù)器不是功能**多，也不是所謂**技術(shù)的，而是應(yīng)該滿足現(xiàn)場(chǎng)實(shí)際需求，做到經(jīng)濟(jì)性和可靠性的統(tǒng)一，具有較高的性能價(jià)格比。根據(jù)現(xiàn)場(chǎng)的實(shí)際情況合理地選擇保護(hù)器的種類(lèi)、功能，湖南長(zhǎng)沙軟啟動(dòng)器同時(shí)考慮保護(hù)器安裝、調(diào)整，淄博科恩軟啟動(dòng)器訂購(gòu)、使用簡(jiǎn)單方便，更重要的是要選擇高質(zhì)量的保護(hù)器。水泵啟動(dòng)方式有直接啟動(dòng)，降壓?jiǎn)?dòng)，軟啟動(dòng)和變頻啟動(dòng)四種，直接啟動(dòng)一般適合小功率的電機(jī)，我們一般只在15kw以下的泵上使用，價(jià)格便宜；降壓?jiǎn)?dòng)是星—三角轉(zhuǎn)換啟動(dòng)，就是啟動(dòng)是分兩次加速才達(dá)到額定轉(zhuǎn)速的，一般在，價(jià)格適中；軟啟動(dòng)是逐漸增加到額定轉(zhuǎn)速的，對(duì)泵的沖擊很小，價(jià)格比較高，一般是降壓?jiǎn)?dòng)的3倍；高級(jí)的是變頻啟動(dòng)，除了有軟啟動(dòng)的優(yōu)點(diǎn)外，還可以設(shè)定在任意轉(zhuǎn)速工作，對(duì)節(jié)能降耗有效果。在關(guān)閉泵出口閥，打開(kāi)泵進(jìn)口閥，并能確保水泵“自灌”(液位高于泵的進(jìn)口的管道條件下，水泵的啟動(dòng)程序是：?jiǎn)?dòng)電機(jī)，待電機(jī)正常運(yùn)行時(shí)，緩緩打開(kāi)出口閥，使電流慢慢加大。但在無(wú)人操作(開(kāi)閥)，又是自動(dòng)啟泵，且管道直徑與長(zhǎng)度大(管道內(nèi)的水質(zhì)量會(huì)很大)，淄博科恩軟啟動(dòng)器訂購(gòu)，淄博科恩軟啟動(dòng)器訂購(gòu)，如電機(jī)快速啟動(dòng)，要迅速推動(dòng)大質(zhì)量的水加速(如同火車(chē)要很快加速)，會(huì)使電機(jī)啟動(dòng)電流很大。 </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)器訂購(gòu)" src="http://tyunfile.71360.com/UpLoadFile/2019/4/12/14/636906757481314664_keendianqi_4786054.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(chēng)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; max-height: 320px;" alt="淄博科恩軟啟動(dòng)器訂購(gòu)" src="http://tyunfile.71360.com/UpLoadFile/2019/4/12/14/636906757481782295_keendianqi_8997211.jpg"></div><p> 軟起動(dòng)器具有軟起動(dòng)、軟停止、泵控制功能、定時(shí)低速運(yùn)行等多種功能，因此在工業(yè)、民用建筑領(lǐng)域的動(dòng)力設(shè)備控制中具有傳統(tǒng)降壓起動(dòng)器不可比擬的優(yōu)越性。三相異步電動(dòng)機(jī)有很多優(yōu)點(diǎn)，但也有兩個(gè)致命的弱點(diǎn)：一是啟動(dòng)性能差；二是調(diào)速性能差。隨著電力半導(dǎo)體技術(shù)的發(fā)展以及大功率晶體管在工業(yè)控制領(lǐng)域里的應(yīng)用，有兩個(gè)典型的產(chǎn)品改善了異步電動(dòng)機(jī)這兩個(gè)弱點(diǎn)，一是變頻器，二是軟啟動(dòng)器。變頻器改善異步電動(dòng)機(jī)的調(diào)速性能；軟起動(dòng)在起動(dòng)時(shí)間ts內(nèi)，電機(jī)的端電壓從設(shè)定的初始值逐漸增至滿壓，電機(jī)平滑、無(wú)級(jí)地加速。同時(shí)ts可調(diào)節(jié)(通常在60s之間),這有利于與低壓斷路器之間的配合，防止低壓斷路器的瞬時(shí)脫扣器在電機(jī)起動(dòng)時(shí)誤跳閘。過(guò)載保護(hù)功能一般電機(jī)的過(guò)載保護(hù)是通過(guò)熱元件來(lái)實(shí)現(xiàn)的，熱元件在電動(dòng)機(jī)起動(dòng)過(guò)程中很難避開(kāi)電機(jī)的起動(dòng)電流而產(chǎn)生誤動(dòng)作。為避免誤動(dòng)，用戶常加大熱元件的動(dòng)作電流，因而使得過(guò)載保護(hù)的靈敏度不夠，使過(guò)載保護(hù)形同虛設(shè)。而軟起動(dòng)器內(nèi)置的過(guò)載保護(hù)功能是根據(jù)起動(dòng)負(fù)荷的輕重(即起動(dòng)時(shí)間的長(zhǎng)短)來(lái)選擇不同的脫扣特性曲線，以避免在起動(dòng)過(guò)程中誤跳。由于它的過(guò)載保護(hù)是可編程的，軟啟動(dòng)器廠家從而為用戶提供了更大的靈活性。 </p></p><br /><p>文章來(lái)源地址: 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