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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海實力特賣電流互感器規(guī)格尺寸,電流互感器</p><p><span>***更新：</span>2020-10-09 14:02:35</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="3canpbi" 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="imjqxe2" class="page-proshow02"><p class="title">詳細說明</p><div id="37ogik7" 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(cè)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(cè)必須有一點接地。由于高壓電流互感器的一次側(cè)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，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，上海實力特賣電流互感器規(guī)格尺寸，發(fā)生一、二次線圈擊穿的可能性小，另外，上海實力特賣電流互感器規(guī)格尺寸，二次線圈的不接地將使二次回路及儀表的絕緣能力提高，上海實力特賣電流互感器規(guī)格尺寸，還可使雷擊燒毀儀表***減少。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 D22電流互感器.上海實力特賣電流互感器規(guī)格尺寸</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海實力特賣電流互感器規(guī)格尺寸,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167088041488527/6371670880414885276367966.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 </p> <p> ALH-0.66 50III 300/5 </p> <p> 型號 </p> <p> ALH-0.66 30I-I 20/5ML </p> <p> 型號 </p> <p> ALH-0.66 50II 1000/1ML </p> <p> 型號 </p> <p> ALH-0.66 60*50II 800/1ML </p> <p> 型號 </p> <p> ALH-0.66 30I-I 100/5H </p> <p> 型號 </p> <p> ALH-0.66 60I 80/51R2.5VA2 </p> <p> 型號 </p> <p> ALH-0.66 80II 1200/5ML </p> <p> 型號 </p> <p> ALH-0.66 30I-I 40/1ML </p> <p> 型號 </p> <p> ALH-0.66 60I 800/5ML </p> <p> 型號 </p> <p> ALH-0.66 30I-I 20/50.5R2.5 </p> <p> 型號 </p> <p> ALH-0.66 80*50II 300/5ML </p> <p> 型號 </p> <p> ALH-0.66 50II 600/5ML </p> <p> 型號 </p> <p> ALH-0.66 30I-I 75/11RML </p> <p> 型號 </p> <p> ALH-0.66 40II 100/5ML </p> <p> 型號 </p> <p> ALH-0.66 40II 450/5ML </p> <p> 型號 </p> <p> ALH-0.66 60II 400/5ML </p> <p> 型號 </p> <p> ALH-0.66 60II 2000/5ML </p> <p> 型號 </p> <p> ALH-0.66 80*50II 1250/5 </p> <p> 型號 </p> <p> ALH-0.66 60*50II 1250/10.5 </p> <p> 型號 </p> <p> ALH-0.66 30I-I 100/11R2.5V </p> <p> 型號 </p> <p> ALH-0.66 D12 250/5XGZZ </p> <p> 型號 </p> <p> ALH-0.66 M8-II 40/50.5R </p> <p> 型號 </p> <p> ALH-0.66 30I 40/5ML </p> <p> 型號 </p> <p> ALH-0.66 30I-I 15/1 0.5R 5VA </p> <p> 型號 </p> <p> ALH-0.66 80II 500/5ML </p> <p> 型號 </p> <p> ALH-0.66 100II 1250/1ML </p> <p> 型號 </p> <p> ALH-0.66 M8-I 75/1ML </p> <p> 型號 </p> <p> ALH-0.66 30I 100/5ML </p> <p> 型號 </p> <p> ALH-0.66 60III 1500/5EP </p> <p> 型號 </p> <p> ALH-0.66 30I-I 40/51T </p> <p> 型號 </p> <p> ALH-0.66 100*50II 1500/5 ML </p> <p> 型號 </p> <p> ALH-0.66 60I 800/5 0.2SR 5V </p> <p> 型號 </p> <p> ALH-0.66 40I 400/5 ML </p> <p> 型號 </p> <p> ALH-0.66 50II 1500/5 ML </p> <p> 型號 </p> <p> ALH-0.66 40II 700/1 ML </p> <p> 型號 </p> <p> ALH-0.66 M8-I 15/1 ML </p> <p> 型號 </p> <p> ALH-0.66 60II 1200/5 ML </p> <p> 型號 </p> <p> ALH-0.66 30I-I 20/1 1R 2.5VA </p> <p> 型號 </p> <p> ALH-0.66 30I-I 300/1 10VA ML 上海銷售電流互感器廠家供應上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 D8-II電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海實力特賣電流互感器規(guī)格尺寸,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087771928659/6371670877719286596119342.png"></div><p> 電流互感器二次開路電壓波形分析 </p> <p> 當一次電流為0A時，二次輸出電壓波形為一條水平線。隨著一次電流的增大，56種電流互感器波形變化十分復雜，又各具有其自身特色。如6號互感器，一次電流為3A，二次電壓波形為正弦波，一次電流從4A增至150A波形畸變，隨著一次電流增**形畸變加劇，其變化特別是有效寬度變窄，峰—峰值上升，占空因數(shù)下降，但每半周包圍的面積增加甚微。 </p> <p> 比差特性分析 </p> <p> 目前，我國計量電流時，要求用1．5mm2的銅線將電流互感器二次線圈和電度表電流線圈短接，這是降低精度產(chǎn)生正比差的應用方法。以母線穿心式150／5的電流互感器為例，我們分別以1．5mm2長4m的銅線，將其二次線圈分別與150／5A的電流表和電度表的電流線圈串聯(lián)時，當一次穿心電流為150A時，所有電流互感器都能使電流表碰針，若一次電流降至135A，電流表示數(shù)為140～150A。 </p> <p> 在變流實驗臺上測得8000個數(shù)據(jù)表明，當一次電流超過額定值10％，隨著一次電流增大，正比差越來越明顯，而一次電流為15A以下時，電流互感器二次測中的電流表示數(shù)有負比差。 </p><p> 上海喆和定制銷售西門子電流互感器。電流互感器與變壓器類似也是根據(jù)電磁感應原理工作，變壓器變換的是電壓而電流互感器變換的是電流罷了。電流互感器接被測電流的繞組（匝數(shù)為N1），稱為一次繞組（或原邊繞組、初級繞組）；接測量儀表的繞組（匝數(shù)為N2）稱為二次繞組（或副邊繞組、次級繞組）。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K。電流互感器在額定電流下工作時的電流比叫電流互感器額定電流比，用Kn表示。Kn=I1n/I2n電流互感器（Currenttransformer簡稱CT）的作用是可以把數(shù)值較大的一次電流通過一定的變比轉(zhuǎn)換為數(shù)值較小的二次電流，用來進行保護、測量等用途。如變比為400/5的電流互感器，可以把實際為400A的電流轉(zhuǎn)變?yōu)?A的電流。一、電流互感器型號[3]：***字母：L—電流互感器第二字母：A—穿墻式；Z—支柱式；M—母線式；D—單匝貫穿式；V—結(jié)構(gòu)倒置式；J—零序接地檢測用；W—抗污穢；R—繞組裸露式第三字母：Z—環(huán)氧樹脂澆注式；C—瓷絕緣；Q—氣體絕緣介質(zhì)；W—與微機保護**第四字母：B—帶保護級；C—差動保護；D—D級；Q—加強型。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 50III電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海實力特賣電流互感器規(guī)格尺寸,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087691485417/6371670876914854172826101.png"></div><p style="text-indent:25px"> 上海喆和供應西門子APT電流互感器。電流互感器接線方式額定變比和誤差互感器的額定變比KN指電壓互感器的額定電壓比和電流互感器的額定電流比。前者定義為原邊繞組額定電壓U1N與副邊繞組額定電壓U2N之比；后者則為額定電流I1N與I2N之比。即KN=U1N/U2N（對電壓互感器）KN=I1N/I2N（對電流互感器）電壓（或電流）互感器原邊電壓（或電流）在一定范圍內(nèi)變動時，一般規(guī)定為～（或10～120%I1N），副邊電壓（或電流）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)折算后的二次電壓（或二次電流）與一次電壓（或一次電流）量值大小之差對后者之比，即fU為電壓互感器的比差，fI為電流互感器的比差。當KNU2>U1（或KNI2>I1）時，比差為正，反之為負。對沒有采取補償措施的電壓互感器，比差為負，角差一般為正值，比差的比較的值和角差均隨電壓的增大而減??；鐵心飽和時，比差與角差均隨電壓的增大而增大。對于沒有采取補償措施的電流互感器，比差為負值，角差為正值，比差的比較的值和角差均隨電流增大而減小。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.上海銷售西門子電流互感器廠家供應</p><p style="text-indent:25px">上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 100*85II電流互感器.上海實力特賣電流互感器規(guī)格尺寸</p><p> 電流互感器使用注意事項(1)極性連接要正確。電流互感器一般按減極性標注，如果極性連接不正確，就會影響計量，甚至在同**路有多臺電流互感器并聯(lián)時，全造成短路***。(2)二次回路應設保護性接地點，并可靠連接。為防止一、二次繞組之間絕緣擊穿后高電壓竄入低壓側(cè)危及人身和儀表安全，電流互感器二次側(cè)應設保護性接地點，接地點只允許接一個，一般將靠近電流互感器的箱體端子接地。(3)運行中二次繞組不允許開路。否則會導致以下嚴重后果：二次側(cè)出現(xiàn)高電壓，危及人身和儀表安全;出現(xiàn)過熱，可能燒壞繞組;增大計量誤差。(4)用于電能計量的電流互感器二次回路，不應再接繼電保護裝置和自動裝置等，以防互相影響。上海實力特賣電流互感器規(guī)格尺寸</p><p style="text-indent:25px">上海喆和機電科技有限公司是一家從事機電科技領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)服務、技術(shù)轉(zhuǎn)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?！疽婪毥?jīng)批準的項目,經(jīng)相關(guān)部門批準后方可開展經(jīng)營活動】的公司，致力于發(fā)展為創(chuàng)新務實、誠實可信的企業(yè)。公司自創(chuàng)立以來，投身于編程控制器，光電傳感器，變頻器，軟啟動器，是電工電氣的主力軍。上海喆和機電科致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗。上海喆和機電科始終關(guān)注電工電氣市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1475248.html</p></div></div></div></div></div><div id="rkh3r9a" 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