上海APT電流互感器好價(jià)格歡迎咨詢上海喆和機(jī)電科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 上海喆和供應(yīng)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"><meta name="keywords" content="上海APT電流互感器好價(jià)格,電流互感器"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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發(fā)信息做推廣就找產(chǎn)品網(wǎng)<br />企業(yè)電商信息綜合服務(wù)平臺(tái) </span><div id="g22l3bx" class="searchbox"><div id="8gkbvgn" class="searchLt"><div id="bypgxo8" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會(huì)</a></div><div id="qcyyfg2" class="clearfix searchWrap"><div id="tk3z4ry" class="searchInput"><input type="text" name="keywords" placeholder="請(qǐng)輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="fckpgmn" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = 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class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167088041488527/6371670880414885276367966.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="wugx4ht" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167088041488527/6371670880414885276367966.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vduvz8h" 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APT電流互感器好價(jià)格,電流互感器</p><p><span>***更新：</span>2020-10-14 12:01:47</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="bjkbk83" 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="dk7pirs" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="fj3t9nj" class="box"><p><p style="text-indent:25px"> 上海喆和供應(yīng)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(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)沒有采取補(bǔ)償措施的電壓互感器，比差為負(fù)，上海APT電流互感器好價(jià)格，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)于沒有采取補(bǔ)償措施的電流互感器，比差為負(fù)值，上海APT電流互感器好價(jià)格，上海APT電流互感器好價(jià)格，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 D15-I電流互感器.上海APT電流互感器好價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海APT電流互感器好價(jià)格,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167088041488527/6371670880414885276367966.png"></div><p> 上海喆和定制銷售西門子電流互感器。按絕緣介質(zhì)分類1、干式電流互感器[4]：由普通絕緣材料經(jīng)浸漆處理作為絕緣。2、澆注式電流互感器：用環(huán)氧樹脂或其他樹脂混合材料澆注成型的電流互感器。3、油浸式電流互感器：由絕緣紙和絕緣油作為絕緣，一般為戶外型。4、氣體絕緣電流互感器：主絕緣由氣體構(gòu)成。按安裝方式分類1、貫穿式電流互感器[5]：用來穿過屏板或墻壁的電流互感器。2、支柱式電流互感器：安裝在平面或支柱上，兼做一次電路導(dǎo)體支柱用的電流互感器。3、套管式電流互感器：沒有一次導(dǎo)體和一次絕緣，直接套裝在絕緣的套管上的一種電流互感器。4：母線式電流互感器：沒有一次導(dǎo)體但有一次絕緣，直接套裝在母線上使用的一種電流互感器。按原理分類1、電磁式電流互感器根據(jù)電磁感應(yīng)原理實(shí)現(xiàn)電流變換的電流互感器。2、電子式電流互感器[6]例如（1）光學(xué)電流互感器是指采用光學(xué)器件作被測(cè)電流傳感器，光學(xué)器件由光學(xué)玻璃、全光纖等構(gòu)成。（2）空心線圈電流互感器。又稱為Rogowski線圈式電流互感器。空心線圈往往由漆包線均勻繞制在環(huán)形骨架上制成，骨架采用塑料、陶瓷等非鐵磁材料，其相對(duì)磁導(dǎo)率與空氣的相對(duì)磁導(dǎo)率相同。上海APT電流互感器好價(jià)格上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 80III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電流互感器好價(jià)格,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087581865934/6371670875818659347638789.jpg"></div><p> 上海喆和銷售西門子電流互感器ALH-0.66系列 </p> <p> 測(cè)量用電流互感器的精度等級(jí)±1%，另外還有。保護(hù)用電流互感器的精度等級(jí)5P/10P，10P標(biāo)示復(fù)合誤差不超過10%。折疊保護(hù)用電流互感器保護(hù)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(shí)，向繼電裝置提供信號(hào)切斷故障電路，以保護(hù)供電系統(tǒng)的安全。保護(hù)用微型電流互感器的工作條件與測(cè)量用互感器完全不同，保護(hù)用互感器只是在比正常電流大幾倍幾十倍的電流時(shí)才開始有效的工作。保護(hù)用互感器主要要求：1.絕緣可靠，2.足夠大的準(zhǔn)確限值系數(shù)，3.足夠的熱穩(wěn)定性和動(dòng)穩(wěn)定性。保護(hù)用互感器在額定負(fù)荷下能夠滿足準(zhǔn)確級(jí)的要求比較大一次電流叫額定準(zhǔn)確限值一次電流。準(zhǔn)確限值系數(shù)就是額定準(zhǔn)確限值一次電流與額定一次電流比。當(dāng)一次電流足夠大時(shí)鐵芯就會(huì)飽和起不到反映一次電流的作用，準(zhǔn)確限值系數(shù)就是表示這種特性。保護(hù)用互感器準(zhǔn)確等級(jí)5P、10P，表示在額定準(zhǔn)確限值一次電流時(shí)的允許誤差5%、10%線路發(fā)生故障時(shí)的沖擊電流產(chǎn)生熱和電磁力，保護(hù)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(nèi)能承受而無損傷的一次電流有效值，稱額定短時(shí)熱電流。 </p><p> 上海喆和定制西門子電流互感器 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)算長度（m）。設(shè)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(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%來標(biāo)稱的（如5P對(duì)應(yīng)的ε%=5%）。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 120*85II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電流互感器好價(jià)格,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087926902204/6371670879269022048294637.png"></div><p> 電流互感器ε%誤差曲線校驗(yàn)步驟：⑴按照保護(hù)裝置類型計(jì)算流過電流互感器的一次電流倍數(shù)⑵根據(jù)電流互感器的型號(hào)、變比和一次電流倍數(shù)，在10%誤差曲線上確定電流互感器的允許二次負(fù)荷⑶按照對(duì)電流互感器二次負(fù)荷**嚴(yán)重的短路類型，計(jì)算電流互感器的實(shí)際二次負(fù)荷⑷比較實(shí)際二次負(fù)荷與允許二次負(fù)荷。如實(shí)際二次負(fù)荷小于允許二次負(fù)荷，表示電流互感器的誤差不超過10%誤差：1）增大連接導(dǎo)線截面或縮短連接導(dǎo)線長度，以減小實(shí)際二次負(fù)荷2）選擇比較大的電流互感器，減小一次電流倍數(shù)，增大允許二次負(fù)荷3）將電流互感器的二次繞組串聯(lián)起來，使允許二次負(fù)荷增大一倍。動(dòng)、熱穩(wěn)定度需校驗(yàn)電流互感器的動(dòng)穩(wěn)定度和熱穩(wěn)定度[9]，廠家的產(chǎn)品技術(shù)參數(shù)中都給出了動(dòng)穩(wěn)定倍數(shù)Kes和熱穩(wěn)定倍數(shù)Kt，因此按下列公式分別校驗(yàn)動(dòng)穩(wěn)定和熱定度即可。1）動(dòng)穩(wěn)定度校驗(yàn)Kes×I1N≥2）熱穩(wěn)定度校驗(yàn)（KtI1n)2t≥I⑶∞tima式中，t為熱穩(wěn)定電流時(shí)間。額定容量電流互感器二次額定容量要大于實(shí)際二次負(fù)載，實(shí)際二次負(fù)載應(yīng)為25～**二次額定容量。容量決定二次側(cè)負(fù)載阻抗，負(fù)載阻抗又影響測(cè)量或控制精度。負(fù)載阻抗主要受測(cè)量儀表和繼電器線圈電阻、電抗及接線接觸電阻、二次連接導(dǎo)線電阻的影響。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 60*50II電流互感器.上海APT電流互感器好價(jià)格</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 30II電流互感器.上海APT電流互感器好價(jià)格</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(hào) </p> <p> ALH-0.66 30I 300/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 50II 700/5 </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 900/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 M8-I 10/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 200/50.2RML </p> <p> 型號(hào) </p> <p> ALH-0.66 220*50II 3000/5 </p> <p> 型號(hào) </p> <p> ALH-0.66 60II 600/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I 160/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 80*50II 200/51R5VA ML </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 200/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 10/11R1VA ML </p> <p> 型號(hào) </p> <p> ALH-0.66 80*50II 800/50.2RML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 100/51RML </p> <p> 型號(hào) </p> <p> ALH-0.66 60II 200/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 400/5 0.2R 5VA 1T ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 300/50.2R2.5VA 1T VA 1T </p> <p> 型號(hào) </p> <p> ALH-0.66 40I 10/5ZZ </p> <p> 型號(hào) </p> <p> ALH-0.66 120*50II 3000/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 5/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60II 300/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60*50II 1250/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 15/10.5RML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I 100/10.5R5VA </p> <p> 型號(hào) </p> <p> ALH-0.66 30I 40/15VAML </p> <p> 型號(hào) </p> <p> ALH-0.66 100II 1500/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 80I 150/5 </p> <p> 型號(hào) </p> <p> ALH-0.66 M8-II 10/50.5R </p> <p> 型號(hào) </p> <p> ALH-0.66 50III 750/5 </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 30/51T </p> <p> 型號(hào) </p> <p> ALH-0.66 80II 1600/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 100*50II 4000/1M </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 200/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 100III 2500/5XG </p> <p> 型號(hào) </p> <p> ALH-0.66 80*50II 1000/2.5M </p> <p> 型號(hào) </p> <p> ALH-0.66 50II 1250/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 80/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60*50II 600/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 M8-I 30/1ML 上海APT電流互感器好價(jià)格</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)電科不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。上海喆和機(jī)電科始終關(guān)注電工電氣市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)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/1551846.html</p></div></div></div></div></div><div id="r3cmqk8" class="page-right twoColRt"><div id="3x8cjkb" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="uufwhdk" 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" 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