南京精密電流互感器推薦咨詢啟東雙贏電子科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="電流互感器主要作用是將電流回路的大電流按一定比例縮小到便于測量表計和繼電器適用的數(shù)值，從而使用串聯(lián)在其二次繞組回路的測量表計和繼電器可以做得小巧精密。常用的是電流互感器二次額定電流為5A，因此，二次側(cè)與其負載之間的連線可以用小截面的導(dǎo)線或控"><meta name="keywords" content="南京精密電流互感器,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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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dzyqj/">電子元器件</a>?<a href="http://www.cdcfah.com/cp/second-dzyqj_chuanganqisr/">傳感器</a>?<a href="http://www.cdcfah.com/cp/third-chuanganqisr_hecgq/">霍爾傳感器</a>?南京精密電流互感器推薦咨詢啟東雙贏電子科技供應(yīng)</p><div id="dc89mgc" class="leftbox clearfix"><h1>南京精密電流互感器推薦咨詢啟東雙贏電子科技供應(yīng)</h1><div id="lug3lnu" class="proBig"><div id="auwy83i" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shuangying/637314759968730469/7280702.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="f7t7ph7" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shuangying/637314759968730469/7280702.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dogiazi" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>南京精密電流互感器,電流互感器</p><p><span>***更新：</span>2021-02-05 12:14:48</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="gp7brbn" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">啟東雙贏電子科技有限公司</a></p><p><span>聯(lián)系人：</span>楊生</p><p><span>郵箱: </span>jmin_yang@126.com</p><p><span>電話: </span>18666184026</p><p><span>傳真: </span>0513_</p><p><span>網(wǎng)址: </span>http://www.qdsy-sensor.cn</p><p><span>手機: </span>0513-86378688</p><p><span>地址: </span>寅陽鎮(zhèn)洪佳路8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="88fubn3" class="page-proshow02"><p class="title">詳細說明</p><div id="bubtvx2" class="box"><p><p style="text-indent:25px">電流互感器主要作用是將電流回路的大電流按一定比例縮小到便于測量表計和繼電器適用的數(shù)值，從而使用串聯(lián)在其二次繞組回路的測量表計和繼電器可以做得小巧精密。常用的是電流互感器二次額定電流為5A，因此，二次側(cè)與其負載之間的連線可以用小截面的導(dǎo)線或控制電纜。電流互感器的一次繞組是直接與電力回路串聯(lián)的，因此，南京精密電流互感器，繞組的絕緣水平必須與電力回路的電壓等級相適應(yīng)，南京精密電流互感器，其容量滿足電力回路長期通過大負載電流時，南京精密電流互感器，不致使一次繞組的溫升力超過允許值。電流互感器故障點可以在短路點以前的回路中,可以逐點向前變換短接點。南京精密電流互感器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京精密電流互感器,電流互感器" src="https://tyunfile.71360.com/UploadFile/shuangying/637314759968730469/7280702.png"></div><p style="text-indent:25px">在電流互感器中由于磁通密度的有效上升，使鐵芯內(nèi)渦流及磁滯損耗有效增加，產(chǎn)生大量的熱量，使互感器的磁導(dǎo)體溫升超過許可范圍，這高溫對靠近磁導(dǎo)體的繞組絕緣尤為有害。第三，由于產(chǎn)生殘磁的關(guān)系，使磁導(dǎo)體的磁性趨于惡化。電流互感器的二次繞組回路必須有一點接地。這是為了防止當一次繞組和二次繞組擊穿后在二次繞組出現(xiàn)高電壓，以致?lián)p壞二次設(shè)備和威脅人身安全。但是電流互感器二次回路不能有兩點接地，否則會由于地中電流引起的繼電保護誤動作。南京精密電流互感器支柱式電流互感器：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><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京精密電流互感器,電流互感器" src="https://tyunfile.71360.com/UploadFile/shuangying/637314760290507812/4348297.png"></div><p style="text-indent:25px">電流互感器常見故障原因：①由于結(jié)構(gòu)和質(zhì)量上的缺陷,在運行中,發(fā)生螺桿與嵌件螺孔接觸不良,造成開路;②由于連接片膠木過長,旋轉(zhuǎn)端子金屬片未壓在連接片上,而誤壓在膠木套上,致使開路;③修試工作中失誤。如忘記將繼電器內(nèi)部觸頭接好,驗收時沒發(fā)現(xiàn);④二次線端子接頭壓接不緊,回路電流很大時,發(fā)現(xiàn)燒斷或氧化過甚造成開路;⑤室外端子柜、接線盒進潮,端子螺絲和墊片銹蝕過重,造成開路。發(fā)現(xiàn)這些鼓掌情況時，請務(wù)必聯(lián)系專業(yè)人員進行維護，以便后續(xù)使用。</p><p style="text-indent:25px">在單相回路中*有一個回路，這樣可用一臺電流互感器來測量回路中的電流。我們實際使用的電燈的回路中就是采用這種方式。在三相三線的電氣回路中，因為沒有相線和中性線間負荷，便可以用兩臺電流互感器，接成V型接線的方式，接二只電流表測量電流。這種接線方法：是將兩只電流表，接在二次線圖的公用導(dǎo)線上。為了節(jié)約器材和簡化接線，在三相負荷基本平衡時，也可以用一臺電流互感器接一只電流表參考使用。同時在三相三線式的回路里，有時也采用三臺電流互感器接成角型接線，分別測量三相電流。在三相四線制供電系統(tǒng)中，應(yīng)安裝三臺電流互感器分別供電流表使用，接線方式可采用星形接線。微型電流互感器也有人稱之為“儀用電流互感器”。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京精密電流互感器,電流互感器" src="https://tyunfile.71360.com/UploadFile/shuangying/637314759979101562/2915572.png"></div><p style="text-indent:25px">電流互感器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，是平衡一次電流的磁勢的。若突然使其開路，則勵磁電動勢由數(shù)值很小的值驟變?yōu)楹艽蟮闹担F芯中的磁通呈現(xiàn)嚴重飽和的平頂波，因此二次側(cè)繞組將在磁通過零時感應(yīng)出很高的尖頂波，其值可達到數(shù)千甚至上萬伏，危及工作人員的安全及儀表的絕緣性能。另外，二次側(cè)開路使二次側(cè)電壓達幾百伏，一旦觸及將造成觸電事故。因此，電流互感器二次側(cè)都備有短路開關(guān)，防止二次側(cè)開路。在使用過程中，二次側(cè)一旦開路應(yīng)馬上撤掉電路負載，然后，再停電處理。一切處理好后方可再用。穿心式電流互感器其本身結(jié)構(gòu)不設(shè)一次繞組。南京精密電流互感器</p><p style="text-indent:25px">電流互感器是由閉合的鐵心和繞組組成。南京精密電流互感器</p><p style="text-indent:25px">一次繞組可調(diào)，二次多繞組電流互感器。這種電流互感器的特點是變比量程多，而且可以變更，多見于高壓電流互感器。其一次繞組分為兩段，分別穿過互感器的鐵心，二次繞組分為兩個帶抽頭的、不同準確度等級的**繞組。一次繞組與裝置在互感器外側(cè)的連接片連接，通過變更連接片的位置，使一次繞組形成串聯(lián)或并聯(lián)接線，從而改變一次繞組的匝數(shù)，以獲得不同的變比。帶抽頭的二次繞組自身分為兩個不同變比和不同準確度等級的繞組，隨著一次繞組連接片位置的變更，一次繞組匝數(shù)相應(yīng)改變，其變比也隨之改變。南京精密電流互感器</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3176430.html</p></div></div></div></div></div><div id="zi7klak" class="page-right twoColRt"><div id="f7uwyv7" class="box01 margin10 clearfix"><h3><a 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