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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>?上海直銷電流互感器貨真價實歡迎咨詢上海喆和機電科技供應</p><div id="xp2tfb3" class="leftbox clearfix"><h1>上海直銷電流互感器貨真價實歡迎咨詢上海喆和機電科技供應</h1><div id="lexd9bb" class="proBig"><div id="dbxdekb" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087926902204/6371670879269022048294637.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bpqcdef" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087926902204/6371670879269022048294637.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ywnez3x" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>上海直銷電流互感器貨真價實,電流互感器</p><p><span>***更新：</span>2020-09-17 06:02:08</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="2duvhye" 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(wǎng)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="phi3tua" class="page-proshow02"><p class="title">詳細說明</p><div id="er38opv" class="box"><p><p> 由于一次繞組與二次繞組有相等的安培匝數(shù)，I1N1=I2N2，電流互感器額定電流比：。電流互感器實際運行中負荷阻抗很小，二次繞組接近于短路狀態(tài)，相當于一個短路運行的變壓器。2、電流互感器的接線原則(1)電流互感器二次側不允許開路。二次開路可能產(chǎn)生嚴重后果，一是鐵芯過熱，甚至燒毀互感器;二是由于二次繞組匝數(shù)很多，會感應出危險的高電壓，危及人身和設備的安全。(2)高壓電流互感器的二次側必須有一點接地。由于高壓電流互感器的一次側為高壓，當一、二次線圈之間因絕緣損壞出線高壓擊穿時，將導致高壓進入低壓，如果二次線圈一點接地，則將高壓引入了大地，可確保人身及設備的安全。但應當注意，電流互感器的二次回路只允許一點接地，上海直銷電流互感器貨真價實，而不允許再有接地，否則有可能引起分流，影響使用。低壓電流互感器的二次線圈不應該接地。由于低壓互感器的電壓較低，一、二次線圈間的絕緣欲度大，發(fā)生一、二次線圈擊穿的可能性小，上海直銷電流互感器貨真價實，另外，二次線圈的不接地將使二次回路及儀表的絕緣能力提高，還可使雷擊燒毀儀表***減少，上海直銷電流互感器貨真價實。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 40II電流互感器.上海直銷電流互感器貨真價實</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海直銷電流互感器貨真價實,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087926902204/6371670879269022048294637.png"></div><p> 上海喆和定制西門子電流互感器 ALH-0.66系列。 </p> <p> 準確級選擇的原則：計費計量用的電流互感器其準確級不低于0．5級；用于監(jiān)視各進出線回路中負荷電流大小的電流表應選用1．0—3．0級電流互感器。為了保證準確度誤差不超過規(guī)定值，一般還校驗電流互感器二次負荷（伏安），互感器二次負荷S2不大于額定負荷S2n，所選準確度才能得到保證。準確度校驗公式：S2≤S2n。二次回路的負荷l：取決于二次回路的阻抗Z2的值，則：S2=I2n2︱Z2︱≈I2n2（∑︱Zi︱+ RWl+RXC）或S2V1≈∑Si+I2n2（RWl+RXC）式中，Si、Zi為二次回路中的儀表、繼電器線圈的額定負荷和阻抗，RXC為二次回路中所有接頭、觸點的接觸電阻，一般取0．1Ω，RWL為二次回路導線電阻，計算公式化為：RWL=LC/（r×S）。式中，r為導線的導電率，銅線r=53m/（Ωmm2），鋁線r=32m（Ωmm2），S為導線截面積（mm2），LC為導線的計算長度（m）。設互感器到儀表單向長度為L1，則：L1互感器為星形接LC=L1兩相V形接線2L1一相式接線繼電保護用的電流互感器的準確度常用的有5P和l0P。保護級的準確度是以額定準確限值一次電流下的電流互感器額定復合誤差ε%來標稱的（如5P對應的ε%=5%）。上海直銷電流互感器貨真價實上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 170*100II電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海直銷電流互感器貨真價實,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087534940225/6371670875349402255061651.png"></div><p> 上海喆和定制銷售西門子APT原廠ALH-0.66電流互感器，交貨快，款式種類多，個性化等。 </p> <p> 型號 </p> <p> ALH-0.66 60*50II 400/1ML </p> <p> 型號 </p> <p> ALH-0.66 M8-I 15/5ML </p> <p> 型號 </p> <p> ALH-0.66 M8-II 60/5XGZZ </p> <p> 型號 </p> <p> ALH-0.66 80*50II 1250/5ML </p> <p> 型號 </p> <p> ALH-0.66 40II 800/5ML </p> <p> 型號 </p> <p> ALH-0.66 40I 150/15VAML </p> <p> 型號 </p> <p> ALH-0.66 30I 250/50.2RML </p> <p> 型號 </p> <p> ALH-0.66 100*50II 3000/5M </p> <p> 型號 </p> <p> ALH-0.66 80*50II 250/51R5VA ML </p> <p> 型號 </p> <p> ALH-0.66 100II 800/5ML </p> <p> 型號 </p> <p> ALH-0.66 60*50II 1600/2.5M </p> <p> 型號 </p> <p> ALH-0.66 40II 600/50.2RML </p> <p> 型號 </p> <p> ALH-0.66 60II 800/5ML </p> <p> 型號 </p> <p> ALH-0.66 30I-I 300/1ML </p> <p> 型號 </p> <p> ALH-0.66 30I 150/1ML </p> <p> 型號 </p> <p> ALH-0.66 30I 60/1ML </p> <p> 型號 </p> <p> ALH-0.66 40II 250/5ML </p> <p> 型號 </p> <p> ALH-0.66 60II 1500/1ML </p> <p> 型號 </p> <p> ALH-0.66 30I-I 60/11RML </p> <p> 型號 </p> <p> ALH-0.66 M8-I 20/50.5R </p> <p> 型號 </p> <p> ALH-0.66 80II 800/5ML </p> <p> 型號 </p> <p> ALH-0.66 60*50II 1000/5ML </p> <p> 型號 </p> <p> ALH-0.66 40II 400/1 15VA ML </p> <p> 型號 </p> <p> ALH-0.66 30I-I 5/5ML </p> <p> 型號 </p> <p> ALH-0.66 40I 25/5ZZ </p> <p> 型號 </p> <p> ALH-0.66 60*50II 750/1ML </p> <p> 型號 </p> <p> ALH-0.66 60II 250/1ML </p> <p> 型號 </p> <p> ALH-0.66 80II 630/5 </p> <p> 型號 </p> <p> ALH-0.66 80*50II 1250/1ML </p> <p> 型號 </p> <p> ALH-0.66 180II 4000/5ML </p> <p> <br /> </p> <p> <br /> </p> <p> 型號 </p> <p> ALH-0.66 40I 450/5 </p> <p> 型號 </p> <p> ALH-0.66 80*50II 400/51R5 </p> <p> 型號 </p> <p> ALH-0.66 40I 100/10.4VAML </p> <p> 型號 </p> <p> ALH-0.66 M8-II 30/5EPZZ </p> <p> 型號 </p> <p> ALH-0.66 130III 4000/1 </p> <p> <br /> </p> <p> <br /> </p> <p> 型號 </p> <p> ALH-0.66 100*50II 3500/1M </p> <p> 型號 </p> <p> ALH-0.66 120*50II 4000/5 15VA ML </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p><p style="text-indent:25px">對于保護用電流互感器的裝設地點應按盡量消除主保護裝置的不保護區(qū)來設置。例如：若有兩組電流互感器，且位置允許時，應設在斷路器兩側，使斷路器處于交叉保護范圍之中6）為了防止支柱式電流互感器套管閃絡造成母線故障，電流互感器通常布置在斷路器的出線或變壓器側7）為了減輕發(fā)電機內(nèi)部故障時的損傷，用于自動調(diào)節(jié)勵磁裝置的電流互感器應布置在發(fā)電機定子繞組的出線側。為了便于分析和在發(fā)電機并入系統(tǒng)前發(fā)現(xiàn)內(nèi)部故障，用于測量儀表的電流互感器宜裝在發(fā)電機中性點側。接線方式電流互感器的接線方式按其所接負載的運行要求確定。**常用的接線方式為單相、三相星形和不完全星形三種，分別如圖4a、圖4b和圖4c。電流互感器接線方式額定變比和誤差：電流互感器的額定變比KN指電流互感器的額定電流比。即：KN=I1N/I2N電流互感器原邊電流在一定范圍內(nèi)變動時，一般規(guī)定為10～120%I1N，副邊電流應按比例變化，而且原、副邊電壓（或電流）應該同相位。但由于互感器存在內(nèi)阻抗、勵磁電流和損耗等因素而使比值及相位出現(xiàn)誤差，分別稱為比差和角差。比差為經(jīng)折算后的二次電流與一次電流量值大小之差對后者之比，即fI 為電流互感器的比差。當KNI2>I1時，比差為正，反之為負。上海喆和定制銷售西門子電流互感器ALH-0.66系列。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海直銷電流互感器貨真價實,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087883095803/6371670878830958036124787.png"></div><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-0.66 100*50II 2500/5M </p> <p> 型號 ALH-0.66 60II 150/1ML </p> <p> 型號 ALH-0.66 30I-I 150/5ML </p> <p> 型號 ALH-0.66 100II 2500/5ML </p> <p> 型號 ALH-0.66 60*50II 2500/1ML </p> <p> 型號 ALH-0.66 30I-I 30/11R0.4VA </p> <p> 型號 ALH-0.66 30I-I 150/1H </p> <p> 型號 ALH-0.66 80II 150/5ML </p> <p> 型號 ALH-0.66 50II 800/5ML </p> <p> 型號 ALH-0.66 30I-I 50/50.5RML </p> <p> 型號 ALH-0.66 40I 100/5ZZ </p> <p> 型號 ALH-0.66 40I 15/5ZZ </p> <p> 型號 ALH-0.66 120*50II 5000/5M </p> <p> 型號 ALH-0.66 40I 200/50.2R2.5V </p> <p> 型號 ALH-0.66 30I 100/1ML </p> <p> 型號 ALH-0.66 80I 250/5 </p> <p> 型號 ALH-0.66 100II 1200/5ML </p> <p> 型號 ALH-0.66 40I 300/5ZZ </p> <p> 型號 ALH-0.66 M8-II 20/50.5R </p> <p> 型號 ALH-0.66 100*50II 1000/5M </p> <p> 型號 ALH-0.66 D12 150/5XGZZ </p> <p> 型號 ALH-0.66 30I-I 30/11R2.5VA </p> <p> 型號 ALH-0.66 80II 250/5ML </p> <p> 型號 ALH-0.66 40I 350/5ML </p> <p> 型號 ALH-0.66 80*50II 200/5ML </p> <p> 型號 ALH-0.66 80*50II 1000/5ML </p> <p> 型號 ALH-0.66 60I 350/5 </p> <p> 型號 ALH-0.66 60II 750/5ML </p> <p> 型號 ALH-0.66 100II I3000/5ML </p> <p> 型號 ALH-0.66 80*50II 2000/2.5M </p> <p> 型號 ALH-0.66 30I-I 150/5H </p> <p> 型號 ALH-0.66 M8-I 5/5ML </p> <p> 型號 ALH-0.66 40II 630/5ML </p> <p> 型號 ALH-0.66 30I-I 30/5ML </p> <p> 型號 ALH-0.66 60II 100/5ML </p> <p> 型號 ALH-0.66 50II 600/1ML </p> <p> 型號 ALH-0.66 30I-I 20/1ML </p> <p> 型號 ALH-0.66 30I 150/5ML </p> <p> 型號 ALH-0.66 30I-I 25/50.5R2.5 上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 D8-I電流互感器.上?，F(xiàn)貨銷售電流互感器貨真價實</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 30I電流互感器.上海直銷電流互感器貨真價實</p><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(shù)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(shù)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(shù)，3.足夠的熱穩(wěn)定性和動穩(wěn)定性。上海直銷電流互感器貨真價實</p><p style="text-indent:25px">上海喆和機電科技有限公司總部位于上海市靜安區(qū)恒豐北路100號，是一家從事機電科技領域內(nèi)的技術開發(fā)、技術咨詢、技術服務、技術轉讓,機電設備、五金交電、儀器儀表、電子產(chǎn)品、電子元器件、通訊設備(除衛(wèi)星電視廣播地面接收設施)、五金工具、橡塑制品、陶瓷制品、金屬材料、五金制品、包裝材料、建筑裝潢材料、化工原料及產(chǎn)品(除危險化學品、監(jiān)控化學品、民用物品、易制毒化學品)、管道及配件、閥門的批發(fā)、零售。【依法須經(jīng)批準的項目,經(jīng)相關部門批準后方可開展經(jīng)營活動】的公司。上海喆和機電科擁有一支經(jīng)驗豐富、技術創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供編程控制器，光電傳感器，變頻器，軟啟動器。上海喆和機電科繼續(xù)堅定不移地走高質(zhì)量發(fā)展道路，既要實現(xiàn)基本面穩(wěn)定增長，又要聚焦關鍵領域，實現(xiàn)轉型再突破。上海喆和機電科始終關注自身，在風云變化的時代，對自身的建設毫不懈怠，高度的專注與執(zhí)著使上海喆和機電科在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1312451.html</p></div></div></div></div></div><div id="u8n8lco" class="page-right twoColRt"><div id="fqjflcd" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3ev2kgc" 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" 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