上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電歡迎咨詢(xún) 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(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 使用原則：電流互感器的接線(xiàn)應(yīng)遵守串聯(lián)原則[8]：即一次繞阻應(yīng)與被測(cè)電路串聯(lián)，而二次繞阻則與所有儀表負(fù)載電流互感器串聯(lián)2）按被測(cè)電流大小，選擇合適的變比，否則誤差將增大。同時(shí)，二次側(cè)一端必須接地"><meta name="keywords" content="上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電,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" 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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="i4ufgxy" 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>上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電,電流互感器</p><p><span>***更新：</span>2021-01-30 02:02:18</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="vgrdz3n" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8bffr8f" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="e4x2hij" class="box"><p><p> 使用原則：電流互感器的接線(xiàn)應(yīng)遵守串聯(lián)原則[8]：即一次繞阻應(yīng)與被測(cè)電路串聯(lián)，而二次繞阻則與所有儀表負(fù)載電流互感器串聯(lián)2）按被測(cè)電流大小，選擇合適的變比，否則誤差將增大。同時(shí)，二次側(cè)一端必須接地，以防絕緣一旦損壞時(shí)，一次側(cè)高壓竄入二次低壓側(cè)，上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電，造成人身和設(shè)備***3）二次側(cè)***不允許開(kāi)路，因一旦開(kāi)路，一次側(cè)電流I1全部成為磁化電流，引起φm和E2驟增，造成鐵心過(guò)度飽和磁化，發(fā)熱嚴(yán)重乃至燒毀線(xiàn)圈；同時(shí)，磁路過(guò)度飽和磁化后，使誤差增大。電流互感器在正常工作時(shí)，二次側(cè)與測(cè)量?jī)x表和繼電器等電流線(xiàn)圈串聯(lián)使用，測(cè)量?jī)x表和繼電器等電流線(xiàn)圈阻抗很小，二次側(cè)近似于短路。CT二次電流的大小由一次電流決定，二次電流產(chǎn)生的磁勢(shì)，是平衡一次電流的磁勢(shì)的。若突然使其開(kāi)路，上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電，則勵(lì)磁電動(dòng)勢(shì)由數(shù)值很小的值驟變?yōu)楹艽蟮闹?，鐵芯中的磁通呈現(xiàn)嚴(yán)重飽和的平頂波，因此二次側(cè)繞組將在磁通過(guò)零時(shí)感應(yīng)出很高的尖頂波，其值可達(dá)到數(shù)千甚至上萬(wàn)伏，上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電，危及工作人員的安全及儀表的絕緣性能。另外，二次側(cè)開(kāi)路使二次側(cè)電壓達(dá)幾百伏，一旦觸及將造成觸電***。因此，電流互感器二次側(cè)都備有短路開(kāi)關(guān)，防止二次側(cè)開(kāi)路。在使用過(guò)程中，二次側(cè)一旦開(kāi)路應(yīng)馬上撤掉電路負(fù)載，然后。上海喆和定制銷(xiāo)售西門(mén)子APT（原上海二工）ALH-0.66 120III-P電流互感器.上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087771928659/6371670877719286596119342.png"></div><p style="text-indent:25px"> 上海喆和供應(yīng)西門(mén)子APT電流互感器。在供電用電的線(xiàn)路中電流電壓比較大的小小相差懸殊從幾安到幾萬(wàn)安都有。為便于二次儀表測(cè)量需要轉(zhuǎn)換為比較統(tǒng)一的電流，另外線(xiàn)路上的電壓都比較高如直接測(cè)量是非常危險(xiǎn)的。電流互感器就起到變流和電氣隔離作用。較早前，顯示儀表大部分是指針式的電流電壓表，所以電流互感器的二次電流大多數(shù)是安培級(jí)的（如5A等）。現(xiàn)在的電量測(cè)量大多數(shù)字化，而計(jì)算機(jī)的采樣的信號(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(chēng)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。）微型電流互感器與變壓器類(lèi)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微型電流互感器變換的是電流罷了。如圖繞組N1接被測(cè)電流，稱(chēng)為一次繞組（或原邊繞組、初級(jí)繞組）；繞組N2接測(cè)量?jī)x表，稱(chēng)為二次繞組（或副邊繞組、次級(jí)繞組）。微型電流互感器一次繞組電流I1與二次繞組I2的電流比，叫實(shí)際電流比K。微型電流互感器在額定工作電流下工作時(shí)的電流比叫電流互感器額定電流比，用Kn表示。上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電上海喆和定制銷(xiāo)售西門(mén)子APT電流互感器ALH-0.66.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電,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(xiāo)售西門(mén)子APT原廠ALH-0.66電流互感器 </p> <p> 型號(hào) ALH-0.66 100*50II 3000/1ML </p> <p> 型號(hào) ALH-0.66 100II 3000/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 15/5 0.5R 2.5A 8T </p> <p> 型號(hào) ALH-0.66 60*50II 1500/50.5 </p> <p> 型號(hào) ALH-0.66 80II 1250/10.5R15 </p> <p> 型號(hào) ALH-0.66 40II 1000/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 150/110VAM </p> <p> 型號(hào) ALH-0.66 30I-I 30/10.5R5VA </p> <p> 型號(hào) ALH-0.66 80*50II 300/51R5 </p> <p> 型號(hào) ALH-0.66 40I 75/5ZZ </p> <p> 型號(hào) ALH-0.66 30I-I 40/11RML </p> <p> 型號(hào) ALH-0.66 40II 350/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 50/1ML </p> <p> 型號(hào) ALH-0.66 40I 200/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 75/50.5R2.5 </p> <p> 型號(hào) ALH-0.66 40I 350/5 </p> <p> 型號(hào) ALH-0.66 30I-I 250/1ML </p> <p> 型號(hào) ALH-0.66 60II 800/50.2SR5 </p> <p> 型號(hào) ALH-0.66 40II 650/5ML </p> <p> 型號(hào) ALH-0.66 80*50II 1500/1ML </p> <p> 型號(hào) ALH-0.66 60*50II 500/1ML </p> <p> 型號(hào) ALH-0.66 100*50II 3200/5M </p> <p> 型號(hào) ALH-0.66 M8-II 100/5XGZZ </p> <p> 型號(hào) ALH-0.66 40I 40/5 </p> <p> 型號(hào) ALH-0.66 100II I800/5ML </p> <p> 型號(hào) ALH-0.66 80II 1000/5ML </p> <p> 型號(hào) ALH-0.66 M8-I 20/5ML </p> <p> 型號(hào) ALH-0.66 60III 600/5ML </p> <p> 型號(hào) ALH-0.66 50II 600/115VAML </p> <p> 型號(hào) ALH-0.66 30I 160/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 10/1ML </p> <p> 型號(hào) ALH-0.66 60II 1000/5ML </p> <p> 型號(hào) ALH-0.66 80*50II 2500/0.5 </p> <p> 型號(hào) ALH-0.66 60*50II 200/5ML </p> <p> 型號(hào) ALH-0.66 M8-I 40/50.5R </p> <p> 型號(hào) ALH-0.66 60II 500/1ML </p> <p> 型號(hào) ALH-0.66 60I I 1500/5 0.5R 15VA ML </p> <p> 型號(hào) ALH-0.66 40II 300/1 10VA ML </p><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(xiàn)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(xiàn)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(xiàn)電阻，計(jì)算公式化為：RWL=LC/（r×S）。式中，r為導(dǎo)線(xiàn)的導(dǎo)電率，銅線(xiàn)r=53m/（Ωmm2），鋁線(xiàn)r=32m（Ωmm2），S為導(dǎo)線(xiàn)截面積（mm2），LC為導(dǎo)線(xiàn)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(xiàn)2L1一相式接線(xiàn)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(chēng)的（如5P對(duì)應(yīng)的ε%=5%）。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.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087534940225/6371670875349402255061651.png"></div><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(shí)際運(yùn)行中負(fù)荷阻抗很小，二次繞組接近于短路狀態(tài)，相當(dāng)于一個(gè)短路運(yùn)行的變壓器。2、電流互感器的接線(xiàn)原則(1)電流互感器二次側(cè)不允許開(kāi)路。二次開(kāi)路可能產(chǎn)生嚴(yán)重后果，一是鐵芯過(guò)熱，甚至燒毀互感器;二是由于二次繞組匝數(shù)很多，會(huì)感應(yīng)出危險(xiǎn)的高電壓，危及人身和設(shè)備的安全。(2)高壓電流互感器的二次側(cè)必須有一點(diǎn)接地。由于高壓電流互感器的一次側(cè)為高壓，當(dāng)一、二次線(xiàn)圈之間因絕緣損壞出線(xiàn)高壓擊穿時(shí)，將導(dǎo)致高壓進(jìn)入低壓，如果二次線(xiàn)圈一點(diǎn)接地，則將高壓引入了大地，可確保人身及設(shè)備的安全。但應(yīng)當(dāng)注意，電流互感器的二次回路只允許一點(diǎn)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(xiàn)圈不應(yīng)該接地。由于低壓互感器的電壓較低，一、二次線(xiàn)圈間的絕緣欲度大，發(fā)生一、二次線(xiàn)圈擊穿的可能性小，另外，二次線(xiàn)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。上海喆和定制銷(xiāo)售西門(mén)子APT（原上海二工）ALH-0.66 D15-I電流互感器.上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電</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 80II-P電流互感器.上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電</p><p> 電流互感器使用注意事項(xiàng)(1)極性連接要正確。電流互感器一般按減極性標(biāo)注，如果極性連接不正確，就會(huì)影響計(jì)量，甚至在同**路有多臺(tái)電流互感器并聯(lián)時(shí)，全造成短路***。(2)二次回路應(yīng)設(shè)保護(hù)性接地點(diǎn)，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(yīng)設(shè)保護(hù)性接地點(diǎn)，接地點(diǎn)只允許接一個(gè)，一般將靠近電流互感器的箱體端子接地。(3)運(yùn)行中二次繞組不允許開(kāi)路。否則會(huì)導(dǎo)致以下嚴(yán)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(guò)熱，可能燒壞繞組;增大計(jì)量誤差。(4)用于電能計(jì)量的電流互感器二次回路，不應(yīng)再接繼電保護(hù)裝置和自動(dòng)裝置等，以防互相影響。上海廠家授權(quán)銷(xiāo)售電流互感器歡迎來(lái)電</p><p style="text-indent:25px">上海喆和機(jī)電科技有限公司是一家有著雄厚實(shí)力背景、信譽(yù)可靠、勵(lì)精圖治、展望未來(lái)、有夢(mèng)想有目標(biāo)，有組織有體系的公司，堅(jiān)持于帶領(lǐng)員工在未來(lái)的道路上大放光明，攜手共畫(huà)藍(lán)圖，在上海市市轄區(qū)等地區(qū)的電工電氣行業(yè)中積累了大批忠誠(chéng)的客戶(hù)粉絲源，也收獲了良好的用戶(hù)口碑，為公司的發(fā)展奠定的良好的行業(yè)基礎(chǔ)，也希望未來(lái)公司能成為*****，努力為行業(yè)領(lǐng)域的發(fā)展奉獻(xiàn)出自己的一份力量，我們相信精益求精的工作態(tài)度和不斷的完善創(chuàng)新理念以及自強(qiáng)不息，斗志昂揚(yáng)的的企業(yè)精神將** 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