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id="ai8zpan" class="twoCol"><div id="o8cp00b" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產品供應</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_gkxtjzbyb/">工控系統(tǒng)及裝備</a>?<a href="http://www.cdcfah.com/cp/third-gkxtjzbyb_plcod/">PLC</a>?上海APT電流互感器多少錢歡迎來電上海喆和機電科技供應</p><div id="ayt3zmm" class="leftbox clearfix"><h1>上海APT電流互感器多少錢歡迎來電上海喆和機電科技供應</h1><div id="dagr5rc" class="proBig"><div id="3zfcqb8" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087771928659/6371670877719286596119342.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="urxxkuf" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087771928659/6371670877719286596119342.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8vq7e37" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>上海APT電流互感器多少錢,電流互感器</p><p><span>***更新：</span>2020-12-10 14:03:16</p><p><span id="click" >瀏覽次數：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="vc3keup" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海喆和機電科技有限公司</a></p><p><span>聯(lián)系人：</span>李小雅</p><p><span>郵箱: </span>shzh-sh@qq.com</p><p><span>電話: </span>13761188658</p><p><span>傳真: </span>021_53862782</p><p><span>網址: </span></p><p><span>手機: </span>021-53862782</p><p><span>地址: </span>上海市靜安區(qū)恒豐北路100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="uhsi9pp" class="page-proshow02"><p class="title">詳細說明</p><div id="e3eaotj" class="box"><p><p> 電流互感器二次開路電壓特性 </p> <p> 對每一種電流互感器，二次開路電壓隨著一次電流的變化，上海APT電流互感器多少錢，都有嚴格的對應關系，*以一次額定電流時的二次開路電壓值說明。對母線穿心式150／5的電流互感器，當穿心電流為額定值時，不同品種的電流互感器二次開路電壓為2．6～2；4V。80條二次開路電壓特性曲線的規(guī)律是：一次穿心電流從0A增至150A時，二次開路電壓開始上升幅度很大，30A以后增加甚小(即使從150A增至800A，二次開路電壓平均只上升0．2V)。 </p> <p> 母線穿心式200/5的電流互感器，二次開路電壓是3．9～6．5V；母線穿心式 300／5—2000／5的電流互感器，二次開路電壓為6．5～37．2V。 </p> <p> LQG系列從30／5—600／5的電流互感器，二次開路電壓是12．8～21．4V。 </p> <p> 變電站用的LQJ，LFC，LFCD系列50／5～300／5的電流互感器，二次開路電壓是18～121．3V，上海APT電流互感器多少錢。 </p> <p> 在第二次伏安特實驗臺上，利用調壓器，上海APT電流互感器多少錢、電流表、導線將所有的電流互感器二次線圈分別接人調壓器的輸出端，當二次輸入5A電流時，測得二次電壓和一次加額定電流時測得的二次開路電壓都有嚴格的對應關系。若用公式計算，二次開路電壓等于二次閉路轉為開路一次電壓的增量乘以變化。從正反兩方面實驗和法拉第電磁感應定律推導結論證明了二次開路電壓測試值的真實性上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 170*100II-P電流互感器.上海APT電流互感器多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海APT電流互感器多少錢,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087771928659/6371670877719286596119342.png"></div><p> 上海喆和供應西門子APT電流互感器ALH-0.66系列。上海喆和在對電流互感器進行檢修時發(fā)現，即使互感器的二次線圈開路運行，也不會造成設備損害。這一現象與傳統(tǒng)的電工手冊及各類教材所提出的電流互感器二次開路產生幾百伏以上、危及人身安全的高壓，鐵芯嚴重發(fā)熱，燒壞電流互感器并不一致。為了解決這一問題，弄清電流互感器的運行參數，作者進行了一系列的實驗，在進行了大量調查實驗基礎上，得出了令人信服的結論。 </p> <p> 上海喆和發(fā)現，目前生產和應用的電流互感器的發(fā)熱特性與傳統(tǒng)結論截然不同：其二次開路狀態(tài)工作時，一般不會過熱；只有極少數型號功耗增大，發(fā)熱嚴重，但在正常工作電流下，也不會燒壞設備。至于二次開路電壓，則始終在低壓范圍內波動。上海喆和在對數十種型號的電流互感器進行實驗測定的基礎上，得出結論，二次開路時具有恒壓源和恒流源兩種電路的特性，可以穩(wěn)定、可靠地用作自動控制功率型信號源。這種突破傳統(tǒng)的電路運用方式，可廣泛應用于自動化控制設計，產生良好的經濟效益和社會效益。 </p> <p> 從實際出發(fā)，不迷信傳統(tǒng)觀念，利用科學手段突破舊有框框，大膽創(chuàng)新，才能在科技事業(yè)中取得成績。上海電流互感器多少錢上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 40I電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海APT電流互感器多少錢,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087926902204/6371670879269022048294637.png"></div><p> 使用原則：電流互感器的接線應遵守串聯(lián)原則[8]：即一次繞阻應與被測電路串聯(lián)，而二次繞阻則與所有儀表負載電流互感器串聯(lián)2）按被測電流大小，選擇合適的變比，否則誤差將增大。同時，二次側一端必須接地，以防絕緣一旦損壞時，一次側高壓竄入二次低壓側，造成人身和設備***3）二次側***不允許開路，因一旦開路，一次側電流I1全部成為磁化電流，引起φm和E2驟增，造成鐵心過度飽和磁化，發(fā)熱嚴重乃至燒毀線圈；同時，磁路過度飽和磁化后，使誤差增大。電流互感器在正常工作時，二次側與測量儀表和繼電器等電流線圈串聯(lián)使用，測量儀表和繼電器等電流線圈阻抗很小，二次側近似于短路。CT二次電流的大小由一次電流決定，二次電流產生的磁勢，是平衡一次電流的磁勢的。若突然使其開路，則勵磁電動勢由數值很小的值驟變?yōu)楹艽蟮闹?，鐵芯中的磁通呈現嚴重飽和的平頂波，因此二次側繞組將在磁通過零時感應出很高的尖頂波，其值可達到數千甚至上萬伏，危及工作人員的安全及儀表的絕緣性能。另外，二次側開路使二次側電壓達幾百伏，一旦觸及將造成觸電***。因此，電流互感器二次側都備有短路開關，防止二次側開路。在使用過程中，二次側一旦開路應馬上撤掉電路負載，然后。 </p><p> 上海喆和銷售西門子電流互感器ALH-0.66系列 </p> <p> 測量用電流互感器的精度等級±1%，另外還有。保護用電流互感器的精度等級5P/10P，10P標示復合誤差不超過10%。折疊保護用電流互感器保護用電流互感器主要與繼電裝置配合，在線路發(fā)生短路過載等故障時，向繼電裝置提供信號切斷故障電路，以保護供電系統(tǒng)的安全。保護用微型電流互感器的工作條件與測量用互感器完全不同，保護用互感器只是在比正常電流大幾倍幾十倍的電流時才開始有效的工作。保護用互感器主要要求：1.絕緣可靠，2.足夠大的準確限值系數，3.足夠的熱穩(wěn)定性和動穩(wěn)定性。保護用互感器在額定負荷下能夠滿足準確級的要求比較大一次電流叫額定準確限值一次電流。準確限值系數就是額定準確限值一次電流與額定一次電流比。當一次電流足夠大時鐵芯就會飽和起不到反映一次電流的作用，準確限值系數就是表示這種特性。保護用互感器準確等級5P、10P，表示在額定準確限值一次電流時的允許誤差5%、10%線路發(fā)生故障時的沖擊電流產生熱和電磁力，保護用電流互感器必須承受。二次繞組短路情況下，電流互感器在一秒內能承受而無損傷的一次電流有效值，稱額定短時熱電流。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 100*50II電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海APT電流互感器多少錢,電流互感器" src="http://tyunfile.71360.com/WaterMark/UpLoadFile/shcmzdh/2020/2/637167636036010136/6371676360360101362181842.png"></div><p> 上海喆和定制銷售西門子電流互感器ALH-0.66系列。 </p> <p> 電流互感器1次側只有1到幾匝，導線截面積大，串入被測電路。2次側匝數多，導線細，與阻抗較小的儀表(電流表/功率表的電流線圈）構成閉路。電流互感器的運行情況相當于2次側短路的變壓器，忽略勵磁電流，安匝數相等I1N1=I2N2電流互感器一次繞組電流I1與二次繞組I2的電流比，叫實際電流比I1/I2=N2/N1=k。勵磁電流是誤差的主要根源。測量用電流互感器的精度等級0.2/0.5/1/3,1表示變比誤差不超過±1%，另外還有0.2S和0.5S級。2、保護用電流互感器保護用電流互感器分為：1.過負荷保護電流互感器，2.差動保護電流互感器，3.接地保護電流互感器（零序電流互感器）保護用電流互感器主要與繼電裝置配合，在線路發(fā)生短路過載等故障時，向繼電裝置提供信號切斷故障電路，以保護供電系統(tǒng)的安全。保護用電流互感器的工作條件與測量用電流保護用電流互感器互感器完全不同，保護用互感器只是在比正常電流大幾倍幾十倍的電流時才開始有效的工作。保護用互感器主要要求：1.絕緣可靠，2.足夠大的準確限值系數，3.足夠的熱穩(wěn)定性和動穩(wěn)定性。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 60I電流互感器.上海二工電流互感器ALH-0.66 D8</p><p style="text-indent:25px">上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 D15-I電流互感器.上海APT電流互感器多少錢</p><p> 上海喆和銷售西門子APT原廠ALH-0.66電流互感器 </p> <p> 型號 ALH-0.66 60I 500/1 0.2R 5V </p> <p> 型號 ALH-0.66 D22 20/5 </p> <p> 型號 ALH-0.66 245*60II 5000/5 </p> <p> 型號 ALH-0.66 130*50II 4000/5 </p> <p> 型號 ALH-0.66 40II 600/5 0.2SR 5 </p> <p> 型號 ALH-0.66 100II 3200/5 </p> <p> 型號 ALH-0.66 200*50II 1000/5 </p> <p> 型號 ALH-0.66 170*50II 3000/5 </p> <p> 型號 ALH-0.66 100*85II 4000/5 0.2R 40VA </p> <p> 型號 ALH-0.66 80II 2000/5 0.5R10VA 690V ML </p> <p> 型號 ALH-0.66 30I-I 75/1-TH </p> <p> 型號 ALH-0.66 80II 2000/10.5R10 </p> <p> 型號 ALH-0.66 100*80II 3500/5 0.5R 40VA 1T </p> <p> 型號 ALH-0.66 60II 1200/5 0.2SR 20VA </p> <p> 型號 ALH-0.66 30I-I 150/5 0.2R1T 2.5VA </p> <p> 型號 ALH-0.66 30I-I 75/1H </p> <p> 型號 ALH-0.66 40II 15/5 0.5R 2.5VA 8T </p> <p> 型號 ALH-0.66 120*65II 4000/5 </p> <p> 型號 ALH-0.66 40II 400/5 0.2SR 2.5VA </p> <p> 型號 ALH-0.66 30I 500/1 </p> <p> 型號 ALH-0.66 D22 30/5 </p> <p> 型號 ALH-0.66 100*70II 3500/5 </p> <p> 型號 ALH-0.66 100*85II 4000/1 </p> <p> 型號 ALH-0.66 80II 1000/1 0.5R10VA 690V ML </p> <p> 型號 ALH-0.66 D22 50/5 </p> <p> 型號 ALH-0.66 100*70II 4000/5 </p> <p> 型號 ALH-0.66 60*50II 1500/50.2 SR </p> <p> 型號 ALH-0.66 60II 2000/5 0.2SR40VA </p> <p> 型號 ALH-0.66 130*50II 3000/5 </p> <p> 型號 ALH-0.66 30I-I 200/510VA </p> <p> 型號 ALH-0.66 40II 300/5 0.2SR 2.5VA </p> <p> 型號 ALH-0.66 170*50II 4000/5 </p> <p> 型號 ALH-0.66 80*50II 1000/5 0.2SR 15VA </p> <p> 型號 ALH-0.66 100*85II 3000/5 </p> <p> 型號 ALH-0.66 D8-I 5/5 上海APT電流互感器多少錢</p><p style="text-indent:25px">上海喆和機電科技有限公司致力于電工電氣，是一家貿易型公司。公司自成立以來，以質量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下編程控制器，光電傳感器，變頻器，軟啟動器深受客戶的喜愛。公司秉持誠信為本的經營理念，在電工電氣深耕多年，以技術為先導，以自主產品為重點，發(fā)揮人才優(yōu)勢，打造電工電氣良好品牌。上海喆和機電科秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”的經營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2347821.html</p></div></div></div></div></div><div id="zm8nii8" class="page-right twoColRt"><div id="nagmfzp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="7vbr9ej" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="vdj3bi8" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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