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id="nrsk88j" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/12/14/636906757481782295_keendianqi_8997211.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="eog2ev0" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/12/14/636906757481782295_keendianqi_8997211.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="r3wdvhg" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>淄博科恩軟啟動器報價</p><p><span>***更新：</span>2020-06-03 03:02:07</p><p><span id="click" >瀏覽次數：5次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="kebvcos" 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有限公司</a></p><p><span>聯系人：</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>網址: </span></p><p><span>手機: </span>0533-2855952</p><p><span>地址: </span>昌國西路111號魯中五金機電城東區(qū)F-15號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="akbnkwd" class="page-proshow02"><p class="title">詳細說明</p><div id="dxzlnug" class="box"><p><p> 電機停機時，傳統的控制方式都是通過瞬間停電完成的.但有許多應用場合，不允許電機瞬間關機.例如:高層建筑、大樓的水泵系統.如果瞬間停機，淄博科恩軟啟動器報價.會產生巨大的“水錘”效應，使管道，甚至水泵遭到損壞.為減少和防止“水錘“效應.需要電機逐漸停機.即軟停車，采用軟啟動器能滿足這一要求.在泵站中.應用軟停車技術可遇免泵站的“拍門“損壞，減少維修費用和維修工作量.。<span style="font-size:12px;">軟啟動器中的軟停車功能是，晶閘管在得到停機指令后，淄博科恩軟啟動器報價，淄博科恩軟啟動器報價，從全導通逐漸地減小導通角.經過一定時間過渡到全關閉的過程.停車的時間根據實際需要可在0-120s調整。</span> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博科恩軟啟動器報價" src="http://tyunfile.71360.com/UpLoadFile/2019/4/12/14/636906757481782295_keendianqi_8997211.jpg"></div><p> 軟啟動器，應用先進的軟件設計方法和的硬件技術，采用晶閘管相移技術，使加到電動機上的電壓按某一規(guī)律慢慢達到全電壓，通過設置適當的控制參數，可以使電動機的轉矩和電流與負載要求得到較好的匹配。同時，通過軟件與硬件的配合，對軟啟動器本身、電動機、負載提供的保護。一般來講，電動機功率的選擇總是大于比較大負載要求，其結果是電動機很少在額定功率下運行，經常處于輕載或變載的情況，能量嚴重浪費。軟啟動在運行時，首先保持輸出額定電壓，以保證電動機和負載在加速后進入穩(wěn)定狀態(tài)；保持一段很短時間之后，自動進入節(jié)電運行階段。其獨有的節(jié)電控制軟件自動負載變化，通過不斷對電流和功率因數的綜合計算，進行實時調節(jié)、更新觸發(fā)角，控制輸出電壓，降低勵磁電流，提高功率因數，實現節(jié)電。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博科恩軟啟動器報價" src="http://tyunfile.71360.com/UpLoadFile/2019/4/12/14/636906757443826248_keendianqi_9094734.jpg"></div><p style="text-indent:25px">軟啟動是指電機的電壓由零慢慢上升到額定電壓，這樣電機在啟動的過程中啟動電流，由過去的過載沖擊不可控電流變成了可控制的電流，并且可以根據需要來對電機啟動器進行電流的大小調整。如果直接啟動電機軟啟動器對軟啟動器有什么樣的危害呢？ 1.會引起電網電壓的波動交流電動機在全壓下直接啟動，起動電流會達到額定電流的4到7倍，如果電機的容量相對來說比較大時，啟動電流會引起電網電壓的急劇下降，同時還會影響電網和其他設備的正常運行。 2.對電網的影響對于電網的影響會表現在兩個方面（1）超大型的電機直接啟動，大電流對電網的沖擊相當于三相短路對電網的沖擊，這時會常常應發(fā)發(fā)動機的振蕩，使電網失去穩(wěn)定。（2）起動電流中含有大量的高次諧波，會與電網電路參數引起高頻諧振，造成繼電保護誤動作、自動控制失靈等故障。 3.傷害電機絕緣（1）大電流所產生的焦耳熱反復作用于導線外絕緣，使絕緣加速老化、壽命降低。（2）大電流產生的機械力使導線相互摩擦，降低絕緣壽命。（3）高壓開關合閘時觸頭的抖動現象會在電機定子繞組上產生操作過電壓，有時會達到外加電壓的5倍以上，這樣高的過電壓會對電機絕緣造成極大。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博科恩軟啟動器報價" src="http://tyunfile.71360.com/UpLoadFile/2019/4/12/14/636906757481314664_keendianqi_4786054.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/125695.html</p></div></div></div></div></div><div id="8kqspwn" class="page-right twoColRt"><div id="s8h3xzr" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="x3cipw3" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" 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