上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話歡迎來(lái)電上海喆和機(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=" 上海喆和定制銷(xiāo)售西門(mén)子電流互感器互感器的誤差包括比差和角差兩部分。比值誤差簡(jiǎn)稱比差，一般用符號(hào)f表示，它等于實(shí)際的二次電流與折算到二次側(cè)的一次電流的差值，與折算到二次側(cè)的一次電流的比值，上海銷(xiāo)"><meta name="keywords" content="上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話,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 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clearfix"><div id="3hqy2si" class="twoCol"><div id="43q7m7b" 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>?上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話歡迎來(lái)電上海喆和機(jī)電科技供應(yīng)</p><div id="aj73c4r" class="leftbox clearfix"><h1>上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話歡迎來(lái)電上海喆和機(jī)電科技供應(yīng)</h1><div id="8lx87li" class="proBig"><div id="oswazac" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087883095803/6371670878830958036124787.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lk7opmd" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087883095803/6371670878830958036124787.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3w3i2df" 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>上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話,電流互感器</p><p><span>***更新：</span>2020-09-16 06:01:40</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="kos7poa" 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="aykev3l" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="l88gvmo" class="box"><p><p> 上海喆和定制銷(xiāo)售西門(mén)子電流互感器互感器的誤差包括比差和角差兩部分。比值誤差簡(jiǎn)稱比差，一般用符號(hào)f表示，它等于實(shí)際的二次電流與折算到二次側(cè)的一次電流的差值，與折算到二次側(cè)的一次電流的比值，上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話，以百分?jǐn)?shù)表示，上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話。角差：相角誤差簡(jiǎn)稱角差，一般用符號(hào)δ表示，上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話，它是旋轉(zhuǎn)180°后的二次電流向量與一次電流向量之間的相位差。規(guī)定二次電流向量超前于一次電流向量δ為正值，反之為負(fù)值，用分（’）為計(jì)算單位。熱穩(wěn)定及動(dòng)穩(wěn)定倍數(shù)：電力系統(tǒng)故障時(shí)，電流互感器受到由于短路電流引起的巨大電流的熱效應(yīng)和電動(dòng)力作用，電流互感器應(yīng)該有能夠承受而不致受到破壞的能力，這種承受的能力用熱穩(wěn)定和動(dòng)穩(wěn)定倍數(shù)表示。熱穩(wěn)定倍數(shù)是指熱穩(wěn)定電流1s內(nèi)不致使電流互感器的發(fā)熱超過(guò)允許限度的電流與電流互感器的額定電流之比。動(dòng)穩(wěn)定倍數(shù)是電流互感器所能承受的額定電流瞬時(shí)值與其額定電流之比。類(lèi)型區(qū)分編輯按用途分類(lèi)按照用途不同，電流互感器大致可分為兩類(lèi)[4]：測(cè)量用電流互感器（或電流互感器的測(cè)量繞組）：在正常工作電流范圍內(nèi)，向測(cè)量、計(jì)量等裝置提供電網(wǎng)的電流信息。保護(hù)用電流互感器（或電流互感器的保護(hù)繞組）：在電網(wǎng)故障狀態(tài)下。上海喆和定制銷(xiāo)售西門(mén)子APT（原上海二工）ALH-0.66 60*50II-P電流互感器.上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087883095803/6371670878830958036124787.png"></div><p> 上海喆和定制銷(xiāo)售西門(mén)子電流互感器。主要技術(shù)要求額定容量：額定二次電流通過(guò)二次額定負(fù)荷時(shí)所消耗的視在功率。額定容量可以用視在功率，也可以用二次額定負(fù)荷阻抗Ω表示。一次額定電流：允許通過(guò)電流互感器一次繞組的用電負(fù)荷電流。用于電力系統(tǒng)的電流互感器一次額定電流為5～25000A，用于試驗(yàn)設(shè)備的精密電流互感器為～50000A。電流互感器可在一次額定電流下長(zhǎng)期運(yùn)行，負(fù)荷電流超過(guò)額定電流值時(shí)叫做過(guò)負(fù)荷，電流互感器長(zhǎng)期過(guò)負(fù)荷運(yùn)行，會(huì)燒壞繞組或減少使用壽命。二次額定電流：允許通過(guò)電流互感器二次繞組的一次感應(yīng)電流。額定電流比（變比）：一次額定電流與二次額定電流之比。額定電壓：一次繞組長(zhǎng)期對(duì)地能夠承受的額定電壓（有效值以kV為單位），應(yīng)不低于所接線路的額定相電壓。電流互感器的額定電壓分為，3，6，10，35，110，220，330，500kV等幾種電壓等級(jí)。10%倍數(shù)：在指定的二次負(fù)荷和任意功率因數(shù)下，電流互感器的電流誤差為－10%時(shí)，一次電流對(duì)其額定值的倍數(shù)。10%倍數(shù)是與繼電保護(hù)有關(guān)的技術(shù)指標(biāo)。準(zhǔn)確度等級(jí)：表示互感器本身誤差（比差和角差）的等級(jí)。電流互感器的準(zhǔn)確度等級(jí)分為～1多種級(jí)別，與原來(lái)相比準(zhǔn)確度提高很大。上?，F(xiàn)貨銷(xiāo)售電流互感器多少錢(qián)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="上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087626920413/6371670876269204131239849.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、二次線圈之間因絕緣損壞出線高壓擊穿時(shí)，將導(dǎo)致高壓進(jìn)入低壓，如果二次線圈一點(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圈不應(yīng)該接地。由于低壓互感器的電壓較低，一、二次線圈間的絕緣欲度大，發(fā)生一、二次線圈擊穿的可能性小，另外，二次線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。 </p><p> 上海喆和供應(yīng)西門(mén)子APT電流互感器ALH-0.66 </p> <p> 消除誤差的方法兩年內(nèi)我們探索了導(dǎo)線、分?jǐn)?shù)匝、電容、電感、電阻絲等對(duì)正比差補(bǔ)償方法。1995年底，我們終于找到了可使電流互感器正、負(fù)比差都明顯減小的技術(shù)方案。例如23號(hào)200／5的電流互感器，當(dāng)母線穿心一匝，一次電流為180A時(shí)，二次顯示194A，正比差為14A，一次電流為5A，二次示數(shù)為0A，負(fù)比差為5A。利用這種技術(shù)方案，可以使該電流互感器一次電流從0A到額定電流的整個(gè)區(qū)間，正比差為0A，負(fù)比差額定值為lA，從而發(fā)現(xiàn)了降低電流互感器比差的技術(shù)方案。電流互感器的負(fù)載特性當(dāng)二次測(cè)所接負(fù)載阻抗遠(yuǎn)大于銘牌上標(biāo)定的阻抗時(shí)，電流互感器是一恒壓源。例如9號(hào)150／5互感器，銘牌上標(biāo)定的阻抗為0．2Ω。當(dāng)一次電流為150A，二次開(kāi)路時(shí)，用MFl73型萬(wàn)用表交流10V檔，精度為9kΩ／V，相當(dāng)于在二次回路上串聯(lián)90kΩ的電阻，測(cè)得其電壓為2．6V；當(dāng)二次測(cè)并接15Ω300磁場(chǎng)變阻器，分別取阻值15Ω、7．5Ω、3．75Ω時(shí)，二次電壓仍為2．6V；當(dāng)取1．875Ω時(shí)二次電壓才降為2．55V，有力地證明了上述結(jié)論。當(dāng)外阻遠(yuǎn)小于標(biāo)定阻抗時(shí)，電流互感器接近一恒流源。例如9號(hào)150／5互感器，將一次電流調(diào)至135A。上海喆和定制銷(xiāo)售西門(mén)子APT（原上海二工）ALH-0.66 170*100II電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167636099732514/6371676360997325149233996.png"></div><p style="text-indent:25px"> 上海喆和供應(yīng)西門(mén)子APT電流互感器在變流實(shí)驗(yàn)臺(tái)上對(duì)每種電流互感器，一次測(cè)注入額定電流的0．1，0．2，…，1倍的電流。二次以開(kāi)路和閉路兩種方式運(yùn)行，測(cè)得一次電壓和一次電流，可以求出一次測(cè)在二次開(kāi)、閉路情況下的阻抗，其數(shù)值很小。例如一次阻抗額定的44號(hào)3015LQG系列電流互感器，當(dāng)一次測(cè)加30A電流，二次開(kāi)路，一次電壓為3V，則一次阻抗為0．1Ω。在二次閉路條件下，一次電壓為0．5V，一次阻抗為O．017Ω,。其余電流互感器隨變化的增大。一次阻抗變得很小，其中以母線穿心式的電流互感器**小。同理利用二次伏安特性，可以直接求出除母線穿心式電流互感器以外的其他各類(lèi)電流互感器在一次開(kāi)路或閉路情況下的二次阻抗。對(duì)母線穿心式電流互感器一次開(kāi)路情況下，二次阻抗可以直接利用二次伏安法求出。一次閉路情況下的二次阻抗必須加穿心短路環(huán)，所用短路環(huán)是多股細(xì)銅線組成的150mm2以上的單匝或多匝短路環(huán)，在滿足二次輸入安匝近似等于—?次安匝情況下，可求出母線穿心式電流互感器一次閉路情況下的二次阻抗。例如5號(hào)電流互感器，二次注入1～5A電流，一次加150mm2短路環(huán)后，其二次阻抗都是0．19Ω，近似等于銘牌標(biāo)定的負(fù)荷0．2Ω或5VA。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?，F(xiàn)貨銷(xiāo)售電流互感器多少錢(qián)</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-0.66 100*50II電流互感器.上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話</p><p> 兩者的使用發(fā)展方向由于電磁式電流互感器存在的易飽和、非線性及頻帶窄等問(wèn)題，電子式電流互感器逐漸興起。電子式電流互感器一般具有抗磁飽和、低功耗、寬頻帶等優(yōu)點(diǎn)。國(guó)內(nèi)具有代表性的電子式互感器有AnyWay變頻電壓傳感器、AnyWay變頻電流傳感器和變頻功率傳感器，其中，AnyWay變頻功率傳感器屬于電壓、電流組合式互感器。該互感器的主要特點(diǎn)如下1、采用前端數(shù)字化技術(shù)，光纖傳輸，電磁兼容性好。2、幅頻特性和相頻特性好，在寬幅值、頻率、相位范圍內(nèi)均可獲得較高的測(cè)量精度。3、屬于數(shù)字式傳感器，二次儀表不會(huì)引入誤差，傳感器誤差就是系統(tǒng)誤差。 </p> <p> 額定電壓電流互感器額定電壓應(yīng)大于裝設(shè)點(diǎn)線路額定電壓 [7] 。變比應(yīng)根據(jù)一次負(fù)荷計(jì)算電流IC選擇電流互感器變比。電流互感器一次側(cè)額定電流標(biāo)準(zhǔn)比（如20、30、40、50、75、100、150、2×a/C）等多種規(guī)格，二次側(cè)額定電流通常為1A或5A。其中2×a/C表示同一臺(tái)產(chǎn)品有兩種電流比，通過(guò)改變產(chǎn)品的連接片接線方式實(shí)現(xiàn)，當(dāng)串聯(lián)時(shí)，電流比為a/c，并聯(lián)時(shí)電流比為2×a/C。一般情況下，計(jì)量用電流互感器變流比的選擇應(yīng)使其一次額定電流I1n不小于線路中的負(fù)荷電流（即計(jì)算IC）。如線路中負(fù)荷計(jì)算電流為350A，則電流互感器的變流比應(yīng)選擇400/5 上海銷(xiāo)售西門(mén)子電流互感器銷(xiāo)售電話</p><p style="text-indent:25px">上海喆和機(jī)電科技有限公司總部位于上海市靜安區(qū)恒豐北路100號(hào)，是一家從事機(jī)電科技領(lǐng)域內(nèi)的技術(shù)開(kāi)發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓,機(jī)電設(shè)備、五金交電、儀器儀表、電子產(chǎn)品、電子元器件、通訊設(shè)備(除衛(wèi)星電視廣播地面接收設(shè)施)、五金工具、橡塑制品、陶瓷制品、金屬材料、五金制品、包裝材料、建筑裝潢材料、化工原料及產(chǎn)品(除危險(xiǎn)化學(xué)品、監(jiān)控化學(xué)品、民用物品、易制毒化學(xué)品)、管道及配件、閥門(mén)的批發(fā)、零售。【依法須經(jīng)批準(zhǔn)的項(xiàng)目,經(jīng)相關(guān)部門(mén)批準(zhǔn)后方可開(kāi)展經(jīng)營(yíng)活動(dòng)】的公司。上海喆和機(jī)電科作為從事機(jī)電科技領(lǐng)域內(nèi)的技術(shù)開(kāi)發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓,機(jī)電設(shè)備、五金交電、儀器儀表、電子產(chǎn)品、電子元器件、通訊設(shè)備(除衛(wèi)星電視廣播地面接收設(shè)施)、五金工具、橡塑制品、陶瓷制品、金屬材料、五金制品、包裝材料、建筑裝潢材料、化工原料及產(chǎn)品(除危險(xiǎn)化學(xué)品、監(jiān)控化學(xué)品、民用物品、易制毒化學(xué)品)、管道及配件、閥門(mén)的批發(fā)、零售。【依法須經(jīng)批準(zhǔn)的項(xiàng)目,經(jīng)相關(guān)部門(mén)批準(zhǔn)后方可開(kāi)展經(jīng)營(yíng)活動(dòng)】的企業(yè)之一，為客戶提供良好的編程控制器，光電傳感器，變頻器，軟啟動(dòng)器。上海喆和機(jī)電科始終以本分踏實(shí)的精神和必勝的信念，影響并帶動(dòng)團(tuán)隊(duì)取得成功。上海喆和機(jī)電科創(chuàng)始人李小雅，始終關(guān)注客戶，創(chuàng)新科技，竭誠(chéng)為客戶提供良好的服務(wù)。</p></p><br 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