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tcPro"><section class="home-main container clearfix"><div id="2urj2x7" class="twoCol"><div id="gjgyl27" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</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>?上海定制電流互感器信譽(yù)好歡迎咨詢(xún) 上海喆和機(jī)電科技供應(yīng)</p><div id="zhuroqs" class="leftbox clearfix"><h1>上海定制電流互感器信譽(yù)好歡迎咨詢(xún) 上海喆和機(jī)電科技供應(yīng)</h1><div id="dcu2gip" class="proBig"><div id="2fhzm7u" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087626920413/6371670876269204131239849.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jx2727z" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087626920413/6371670876269204131239849.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="yxz74bv" 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>上海定制電流互感器信譽(yù)好,電流互感器</p><p><span>***更新：</span>2020-12-13 13:03:58</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="i7moqnp" 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="ice7ie7" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="jivxpby" class="box"><p><p style="text-indent:25px">對(duì)于保護(hù)用電流互感器的裝設(shè)地點(diǎn)應(yīng)按盡量消除主保護(hù)裝置的不保護(hù)區(qū)來(lái)設(shè)置。例如：若有兩組電流互感器，且位置允許時(shí)，應(yīng)設(shè)在斷路器兩側(cè)，使斷路器處于交叉保護(hù)范圍之中6）為了防止支柱式電流互感器套管閃絡(luò)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(cè)7）為了減輕發(fā)電機(jī)內(nèi)部故障時(shí)的損傷，用于自動(dòng)調(diào)節(jié)勵(lì)磁裝置的電流互感器應(yīng)布置在發(fā)電機(jī)定子繞組的出線側(cè)。為了便于分析和在發(fā)電機(jī)并入系統(tǒng)前發(fā)現(xiàn)內(nèi)部故障，用于測(cè)量?jī)x表的電流互感器宜裝在發(fā)電機(jī)中性點(diǎn)側(cè)。接線方式電流互感器的接線方式按其所接負(fù)載的運(yùn)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(dòng)時(shí)，一般規(guī)定為10～120%I1N，副邊電流應(yīng)按比例變化，而且原、副邊電壓（或電流）應(yīng)該同相位，上海定制電流互感器信譽(yù)好，上海定制電流互感器信譽(yù)好。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(chēng)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(duì)后者之比，即fI 為電流互感器的比差。當(dāng)KNI2>I1時(shí)，比差為正，反之為負(fù)，上海定制電流互感器信譽(yù)好。上海喆和定制銷(xiāo)售西門(mén)子APT（原上海二工）ALH-0.66 120II-P電流互感器.上海定制電流互感器信譽(yù)好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海定制電流互感器信譽(yù)好,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087626920413/6371670876269204131239849.png"></div><p> 上海喆和供應(yīng)西門(mén)子電流互感器。 </p> <p> <br /> </p> <p> 被測(cè)互感器與標(biāo)準(zhǔn)互感器的二次電流差一般采用互感器校驗(yàn)儀進(jìn)行量。直接從互感器校驗(yàn)儀上讀出比值差fx(%)，相位差δx(’)。由于互感器校驗(yàn)儀測(cè)的是被測(cè)互感器與標(biāo)準(zhǔn)互感器電流差與二次電流的比值，所以對(duì)互感器校驗(yàn)儀的要求不高。要能校驗(yàn)什么等級(jí)的互感器，基本由標(biāo)準(zhǔn)互感器決定。 </p> <p> 標(biāo)準(zhǔn)互感器是互感器校驗(yàn)系統(tǒng)的關(guān)鍵**。對(duì)被測(cè)互感器進(jìn)行校驗(yàn)，除了標(biāo)準(zhǔn)互感器、互感器校驗(yàn)儀還要有給互感器提供一次電流的升流器，可以調(diào)節(jié)升流器電流的調(diào)壓器，及負(fù)載。折疊編輯本段運(yùn)行特性在電工手冊(cè)及各類(lèi)教材中，對(duì)電流互感器二次開(kāi)路運(yùn)行的結(jié)論是：“電流互感器二次開(kāi)路產(chǎn)生幾百伏、lkV～10kV的危及人身安全的高壓；鐵芯嚴(yán)重發(fā)熱，燒壞電流互感器?！边@也是電力界公認(rèn)的法規(guī)。 </p> <p> 我們科技服務(wù)小組在檢修學(xué)校配電盤(pán)的一只無(wú)示數(shù)電流表時(shí)發(fā)現(xiàn)，與其相串聯(lián)電流互感器二次開(kāi)路運(yùn)行，實(shí)測(cè)電壓為2.6V，恢復(fù)其原閉路接法，同時(shí)在主回路串入型號(hào)、變化相同的電流互感器，二次開(kāi)路長(zhǎng)期運(yùn)行，并不發(fā)熱。這說(shuō)明：目前實(shí)際應(yīng)用的電流互感器運(yùn)行特性與一百多年來(lái)傳統(tǒng)的結(jié)論相比，有著不容忽視的重大差別。上海銷(xiāo)售電流互感器貨真價(jià)實(shí)上海喆和定制銷(xiāo)售西門(mén)子APT（原上海二工）ALH-0.66電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海定制電流互感器信譽(yù)好,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087835529280/6371670878355292804681260.png"></div><p> 上海喆和銷(xiāo)售西門(mén)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(guò)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(guò)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(kāi)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(wú)損傷的一次電流有效值，稱(chēng)額定短時(shí)熱電流。 </p><p> 上海喆和銷(xiāo)售西門(mén)子電流互感器ALH-0.66系列 </p> <p> 按電流變換原理分 </p> <p> 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。 </p> <p> 光電式電流互感器。通過(guò)光電變換原理以實(shí)現(xiàn)電流變換的電流互感器，目前還在研制中。 </p> <p> 按安裝方式分 </p> <p> 貫穿式電流互感器。用來(lái)穿過(guò)屏板或墻壁的電流互感器。 </p> <p> 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。 </p> <p> 套管式電流互感器。沒(méi)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。 </p> <p> 母線式電流互感器。沒(méi)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。折疊編輯本段校驗(yàn)方法在進(jìn)行電流互感器誤差試驗(yàn)之前,通常需要檢查極性和退磁等主面特性。 </p> <p> 1、電流互感器極性檢查： </p> <p> 電流互感器一次繞組標(biāo)志為P1、P2，二次繞組標(biāo)志為S1、S2。若P1、S1是同名端，則這種標(biāo)志叫減極性。一次電流從P1進(jìn)，二次電流從S1出。極性檢查很簡(jiǎn)單，除了可以在互感器校驗(yàn)儀上進(jìn)行檢查外，還可以使用直流檢查法。 </p> <p> 2、電流互感器退磁檢查 </p> <p> 電流互感器在電流突然下降的情況下，互感器鐵芯可能產(chǎn)生剩磁。如電流互感器在大電流情況下突然切斷電源、二次繞組突然開(kāi)路等?；ジ衅麒F芯有剩磁，使鐵芯磁導(dǎo)率下降，影響互感器性能。上海喆和定制銷(xiāo)售西門(mén)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="上海定制電流互感器信譽(yù)好,電流互感器" src="http://tyunfile.71360.com/WaterMark/UpLoadFile/shcmzdh/2020/2/637167636036010136/6371676360360101362181842.png"></div><p> 上海喆和銷(xiāo)售西門(mén)子APT原廠ALH-0.66電流互感器 </p> <p> 型號(hào) ALH-0.66 60I 500/5 0.2SR 5VA 1T </p> <p> 型號(hào) ALH-0.66 80II 1000/1ML </p> <p> 型號(hào) ALH-0.66 30I-I 250/5H </p> <p> 型號(hào) ALH-0.66 40II 500/2.5ML </p> <p> 型號(hào) ALH-0.66 80*50II 2500/2.5ML </p> <p> 型號(hào) ALH-0.66 30I-I 60/5ML </p> <p> 型號(hào) ALH-0.66 M8-I 50/5ML </p> <p> 型號(hào) ALH-0.66 60II 800/1ML </p> <p> 型號(hào) ALH-0.66 60*50II 2000/2.5 ML </p> <p> 型號(hào) ALH-0.66 100II 2000/1ML </p> <p> 型號(hào) ALH-0.66 M8-I 30/5 0.5R 2.5VA </p> <p> 型號(hào) ALH-0.66 80II 3000/1 </p> <p> 型號(hào) ALH-0.66 60*50II 1500/1ML </p> <p> 型號(hào) ALH-0.66 50II 700/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 15/1 1R 1VA ML </p> <p> 型號(hào) ALH-0.66 D22 300/5ML </p> <p> 型號(hào) ALH-0.66 D12 100/5XGZZ </p> <p> 型號(hào) ALH-0.66 40I 50/50.5R </p> <p> 型號(hào) ALH-0.66 40I 250/5ZZ </p> <p> 型號(hào) ALH-0.66 30I-I 40/5 0.5R 2.5A 3T </p> <p> 型號(hào) ALH-0.66 30I 125/1ML </p> <p> 型號(hào) ALH-0.66 M8-I 10/5 1R 2.5VA ML </p> <p> 型號(hào) ALH-0.66 40II 200/5 0.2R 2.5VA 1T </p> <p> 型號(hào) ALH-0.66 30I-I 30/1 5VA 5T ML </p> <p> 型號(hào) ALH-0.66 80*50II 1600/5ML </p> <p> 型號(hào) ALH-0.66 60*50II 350/5ML </p> <p> 型號(hào) ALH-0.66 40I 350/1ML </p> <p> 型號(hào) ALH-0.66 30I-I 25/1 5VA 6T ML </p> <p> 型號(hào) ALH-0.66 M8-II 40/5EPZZ </p> <p> 型號(hào) ALH-0.66 40II 750/1ML </p> <p> 型號(hào) ALH-0.66 30I 250/2.5ML </p> <p> 型號(hào) ALH-0.66 30I 120/5ML </p> <p> 型號(hào) ALH-0.66 60II 750/1ML </p> <p> 型號(hào) ALH-0.66 M8-I 5/50.5R </p> <p> 型號(hào) ALH-0.66 80*50II 2000/1ML </p> <p> 型號(hào) ALH-0.66 30I 200/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 10/5 0.5R ML </p> <p> <br /> 上海喆和定制銷(xiāo)售西門(mén)子APT（原上海二工）ALH-0.66 50II-P電流互感器.上海銷(xiāo)售電流互感器貨真價(jià)實(shí)</p><p style="text-indent:25px">上海喆和定制銷(xiāo)售西門(mén)子APT（原上海二工）ALH-0.66 120*50II電流互感器.上海定制電流互感器信譽(yù)好</p><p> 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***值和角差均隨電流增大而減小。采用補(bǔ)償?shù)霓k法可以減小互感器的誤差。一般通過(guò)在互感器上加繞附加繞組或增添附加鐵心，以及接入相應(yīng)的電阻、電感、電容元件來(lái)補(bǔ)償。常用的補(bǔ)償法有匝數(shù)補(bǔ)償、分?jǐn)?shù)匝補(bǔ)償、小鐵心補(bǔ)償、并聯(lián)電容補(bǔ)償?shù)?。校?yàn)方法在進(jìn)行電流互感器誤差試驗(yàn)之前，通常需要檢查極性和退磁等試驗(yàn)。極性檢查電流互感器一次繞組標(biāo)志為P1、P2，二次繞組標(biāo)志為S1、S2。若P1、S1是同名端，則這種標(biāo)志叫減極性。一次電流從P1進(jìn)，二次電流從S1出。極性檢查很簡(jiǎn)單，除了可以在互感器校驗(yàn)儀上進(jìn)行檢查外，還可以使用直流檢查法。退磁檢查電流互感器在電流突然下降的情況下，互感器鐵芯可能產(chǎn)生剩磁。如電流互感器在大電流情況下突然切斷電源、二次繞組突然開(kāi)路等?；ジ衅麒F芯有剩磁，使鐵芯磁導(dǎo)率下降，影響互感器性能。長(zhǎng)期使用后的互感器都應(yīng)該退磁?；ジ衅鳈z驗(yàn)前也要退磁。退磁就是通過(guò)一次或二次繞組以交變的勵(lì)磁電流，給鐵芯以交變的磁場(chǎng)。從0開(kāi)始逐漸加大交變的磁場(chǎng)(勵(lì)磁電流)使鐵芯達(dá)到飽和狀態(tài)，然后再慢慢減小勵(lì)磁電流到零，以消除剩磁。上海定制電流互感器信譽(yù)好</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，是一家貿(mào)易型的公司。公司自成立以來(lái)，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下編程控制器，光電傳感器，變頻器，軟啟動(dòng)器深受客戶(hù)的喜愛(ài)。公司從事電工電氣多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專(zhuān)業(yè)化的隊(duì)伍，確保為客戶(hù)提供良好的產(chǎn)品及服務(wù)。上海喆和機(jī)電科立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶(hù)的變化需求。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2389091.html</p></div></div></div></div></div><div id="gvcu3l2" class="page-right twoColRt"><div id="wvnfcz8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="poldfme" 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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