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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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海上海二工電流互感器來(lái)電咨詢,電流互感器</p><p><span>***更新：</span>2020-10-20 03:01:53</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="vhfqtyt" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海喆和機(jī)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(jī): </span>021-53862782</p><p><span>地址: </span>上海市靜安區(qū)恒豐北路100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="rekf8i8" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="zhiilla" class="box"><p><p> 上海喆和定制銷售西門(mén)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(yīng)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(cè)電流的繞組（匝數(shù)為N1），稱為一次繞組（或原邊繞組、初級(jí)繞組）；接測(cè)量?jī)x表的繞組（匝數(shù)為N2）稱為二次繞組（或副邊繞組、次級(jí)繞組）。電流互感器一次繞組電流I1與二次繞組I2的電流比，上海上海二工電流互感器來(lái)電咨詢，上海上海二工電流互感器來(lái)電咨詢，叫實(shí)際電流比K，上海上海二工電流互感器來(lái)電咨詢。電流互感器在額定電流下工作時(shí)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(jiǎn)稱CT）的作用是可以把數(shù)值較大的一次電流通過(guò)一定的變比轉(zhuǎn)換為數(shù)值較小的二次電流，用來(lái)進(jìn)行保護(hù)、測(cè)量等用途。如變比為400/5的電流互感器，可以把實(shí)際為400A的電流轉(zhuǎn)變?yōu)?A的電流。一、電流互感器型號(hào)[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(cè)用；W—抗污穢；R—繞組裸露式第三字母：Z—環(huán)氧樹(shù)脂澆注式；C—瓷絕緣；Q—?dú)怏w絕緣介質(zhì)；W—與微機(jī)保護(hù)**第四字母：B—帶保護(hù)級(jí)；C—差動(dòng)保護(hù)；D—D級(jí)；Q—加強(qiáng)型。上海喆和定制銷售西門(mén)子APT（原上海二工）ALH-0.66 60I電流互感器.上海上海二工電流互感器來(lái)電咨詢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海上海二工電流互感器來(lái)電咨詢,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087973056246/6371670879730562466968566.png"></div><p> 上海喆和定制銷售西門(mén)子電流互感器ALH-0.66系列。 </p> <p> 電流互感器原理 [2] 是依據(jù)電磁感應(yīng)原理的。電流互感器是由閉合的鐵心和繞組組成。它的一次繞組匝數(shù)很少，串在需要測(cè)量的電流的線路中，因此它經(jīng)常有線路的全部電流流過(guò)，二次繞組匝數(shù)比較多，串接在測(cè)量?jī)x表和保護(hù)回路中，電流互感器在工作時(shí)，它的二次回路始終是閉合的，因此測(cè)量?jī)x表和保護(hù)回路串聯(lián)線圈的阻抗很小，電流互感器的工作狀態(tài)接近短路。 </p> <p> 在發(fā)電、變電、輸電、配電和用電的線路中電流大小懸殊，從幾安到幾萬(wàn)安都有。為便于測(cè)量、保護(hù)和控制需要轉(zhuǎn)換為比較統(tǒng)一的電流，另外線路上的電壓一般都比較高如直接測(cè)量是非常危險(xiǎn)的。電流互感器就起到電流變換和電氣隔離作用 [1] 。對(duì)于指針式的電流表，電流互感器的二次電流大多數(shù)是安培級(jí)的（如5A等）。對(duì)于數(shù)字化儀表，采樣的信號(hào)一般為毫安級(jí)（0-5V、4-20mA等）。微型電流互感器二次電流為毫安級(jí)，主要起大互感器與采樣之間的橋梁作用。微型電流互感器也有人稱之為“儀用電流互感器”。（“儀用電流互感器”有一層含義是在實(shí)驗(yàn)室使用的多電流比精密電流互感器，一般用于擴(kuò)大儀表量程。）上海上海二工電流互感器來(lái)電咨詢上海喆和定制銷售西門(mén)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="上海上海二工電流互感器來(lái)電咨詢,電流互感器" src="http://tyunfile.71360.com/WaterMark/UpLoadFile/shcmzdh/2020/2/637167087454347244/6371670874543472446544135.png"></div><p> 上海喆和銷售西門(mén)子APT原廠ALH-0.66電流互感器 </p> <p> 型號(hào) </p> <p> ALH-0.66 80III 700/5 </p> <p> 型號(hào) </p> <p> ALH-0.66 40I 1000/1 15VA ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 85/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 100III 3000/5EP </p> <p> 型號(hào) </p> <p> ALH-0.66 M8-I 40/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 100II 630/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60*50II 400/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 80*50II 1500/2.5M </p> <p> 型號(hào) </p> <p> ALH-0.66 30I 30/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 250/11R10VA </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 800/50.2RML </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 150/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 100*50II 3200/1M </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 75/50.5R5VA </p> <p> 型號(hào) </p> <p> ALH-0.66 30I 200/50.2R2.5V </p> <p> 型號(hào) </p> <p> ALH-0.66 D12 800/5EPZZ </p> <p> 型號(hào) </p> <p> ALH-0.66 60II 1500/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 40/10.5R5VA </p> <p> 型號(hào) </p> <p> ALH-0.66 60II 500/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 40/5H </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 400/2.5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 300/115VAML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 100/11R5VA </p> <p> 型號(hào) </p> <p> ALH-0.66 170*100II 5000/5 </p> <p> 型號(hào) </p> <p> ALH-0.66 120*50II 1250/5 </p> <p> 型號(hào) </p> <p> ALH-0.66 60*50II 1000/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 80*50II 800/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 M8-I 100/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 100II 1000/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 80*50II 600/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I 350/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 220*50II 5000/5M </p> <p> ALH-0.66 D12 500/5XGZZ </p> <p> 型號(hào) </p> <p> ALH-0.66 100III 1500/5EP </p> <p> 型號(hào) </p> <p> ALH-0.66 60II 1500/1 </p> <p> 型號(hào) </p> <p> ALH-0.66 80*50II 1000/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 100*50II 2000/2.5 </p><p style="text-indent:25px"> 上海喆和供應(yīng)西門(mén)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(duì)電壓互感器）KN=I1N/I2N（對(duì)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(dòng)時(shí)，一般規(guī)定為～（或10～120%I1N），副邊電壓（或電流）應(yīng)按比例變化，而且原、副邊電壓（或電流）應(yīng)該同相位。但由于互感器存在內(nèi)阻抗、勵(lì)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(duì)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(dāng)KNU2>U1（或KNI2>I1）時(shí)，比差為正，反之為負(fù)。對(duì)沒(méi)有采取補(bǔ)償措施的電壓互感器，比差為負(fù)，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(shí)，比差與角差均隨電壓的增大而增大。對(duì)于沒(méi)有采取補(bǔ)償措施的電流互感器，比差為負(fù)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(mén)子APT（原上海二工）ALH-0.66 100II-P電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海上海二工電流互感器來(lái)電咨詢,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087581865934/6371670875818659347638789.jpg"></div><p> 上海喆和定制西門(mén)子電流互感器 ALH-0.66系列。 </p> <p> 準(zhǔn)確級(jí)選擇的原則：計(jì)費(fèi)計(jì)量用的電流互感器其準(zhǔn)確級(jí)不低于0．5級(jí)；用于監(jiān)視各進(jìn)出線回路中負(fù)荷電流大小的電流表應(yīng)選用1．0—3．0級(jí)電流互感器。為了保證準(zhǔn)確度誤差不超過(guò)規(guī)定值，一般還校驗(yàn)電流互感器二次負(fù)荷（伏安），互感器二次負(fù)荷S2不大于額定負(fù)荷S2n，所選準(zhǔn)確度才能得到保證。準(zhǔn)確度校驗(yàn)公式：S2≤S2n。二次回路的負(fù)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(fù)荷和阻抗，RXC為二次回路中所有接頭、觸點(diǎn)的接觸電阻，一般取0．1Ω，RWL為二次回路導(dǎo)線電阻，計(jì)算公式化為：RWL=LC/（r×S）。式中，r為導(dǎo)線的導(dǎo)電率，銅線r=53m/（Ωmm2），鋁線r=32m（Ωmm2），S為導(dǎo)線截面積（mm2），LC為導(dǎo)線的計(jì)算長(zhǎng)度（m）。設(shè)互感器到儀表單向長(zhǎng)度為L(zhǎng)1，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(hù)用的電流互感器的準(zhǔn)確度常用的有5P和l0P。保護(hù)級(jí)的準(zhǔn)確度是以額定準(zhǔn)確限值一次電流下的電流互感器額定復(fù)合誤差ε%來(lái)標(biāo)稱的（如5P對(duì)應(yīng)的ε%=5%）。上海喆和定制銷售西門(mén)子APT（原上海二工）ALH-0.66 40II電流互感器.上?，F(xiàn)貨銷售電流互感器多少錢(qián)</p><p style="text-indent:25px">上海喆和定制銷售西門(mén)子APT（原上海二工）ALH-0.66 120*65II電流互感器.上海上海二工電流互感器來(lái)電咨詢</p><p> 上海喆和銷售西門(mén)子APT原廠ALH-0.66電流互感器 </p> <p> 型號(hào) ALH-0.66 30I-I 200/5ML </p> <p> 型號(hào) ALH-0.66 40II 200/1ML </p> <p> 型號(hào) ALH-0.66 30I-I 20/10.5RML </p> <p> 型號(hào) ALH-0.66 30I 160/5 </p> <p> 型號(hào) ALH-0.66 30I-I 80/1ML </p> <p> 型號(hào) ALH-0.66 50II 250/5ML </p> <p> 型號(hào) ALH-0.66 80II 1500/5ML </p> <p> 型號(hào) ALH-0.66 M8-I 5/1ML </p> <p> 型號(hào) ALH-0.66 40II 500/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 40/5ML </p> <p> 型號(hào) ALH-0.66 40I 200/5ZZ </p> <p> 型號(hào) ALH-0.66 40I 10/5 </p> <p> 型號(hào) ALH-0.66 170*100II 4000/5 </p> <p> 型號(hào) ALH-0.66 100II 2000/5ML </p> <p> 型號(hào) ALH-0.66 80*50II 400/5ML </p> <p> 型號(hào) ALH-0.66 60*50II 2000/1ML </p> <p> 型號(hào) ALH-0.66 80II 1200/1 </p> <p> 型號(hào) ALH-0.66 30I-I 100/110VAM </p> <p> 型號(hào) ALH-0.66 30I-I 30/5H </p> <p> 型號(hào) ALH-0.66 60II 300/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 50/50.5R </p> <p> 型號(hào) ALH-0.66 100II 1000/1ML </p> <p> 型號(hào) ALH-0.66 40I 300/110VAML </p> <p> 型號(hào) ALH-0.66 60II 2000/1 </p> <p> 型號(hào) ALH-0.66 30I-I 50/5ML </p> <p> 型號(hào) ALH-0.66 40I 75/5 0.5R 2.5VA 2T </p> <p> 型號(hào) ALH-0.66 30I-I 30/11RML </p> <p> 型號(hào) ALH-0.66 D12 75/5XGZZ </p> <p> 型號(hào) ALH-0.66 30I-I 15/50.5RML </p> <p> 型號(hào) ALH-0.66 M8-II 5/50.5R </p> <p> 型號(hào) ALH-0.66 30I 50/5ML </p> <p> 型號(hào) ALH-0.66 80*50II 1600/2.5ML </p> <p> 型號(hào) ALH-0.66 80*50II 2000/5ML </p> <p> 型號(hào) ALH-0.66 30I 125/5ML </p> <p> 型號(hào) ALH-0.66 60I 750/5ML </p> <p> 型號(hào) ALH-0.66 50II 500/5ML </p> <p> 型號(hào) ALH-0.66 M8-I 30/5ML </p> <p> 型號(hào) ALH-0.66 40II 600/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 75/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 75/5H 上海上海二工電流互感器來(lái)電咨詢</p><p style="text-indent:25px">上海喆和機(jī)電科技有限公司致力于電工電氣，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。上海喆和機(jī)電科深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的編程控制器，光電傳感器，變頻器，軟啟動(dòng)器。上海喆和機(jī)電科繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。上海喆和機(jī)電科始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使上海喆和機(jī)電科在行業(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1625043.html</p></div></div></div></div></div><div id="84xfalg" class="page-right twoColRt"><div id="weuf3hk" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jcmnn3u" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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