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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>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>上海現(xiàn)貨銷售電流互感器來電咨詢,電流互感器</p><p><span>***更新：</span>2020-08-26 11:02:36</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="mvs8dua" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海喆和機電科技有限公司</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: </span>021-53862782</p><p><span>地址: </span>上海市靜安區(qū)恒豐北路100號</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="uevuamd" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="kyvnuri" class="box"><p><p> 被測互感器與標(biāo)準(zhǔn)互感器的二次電流差一般采用互感器校驗儀進行量。直接從互感器校驗儀上讀出比值差fx(%)，相位差δx(’)。由于互感器校驗儀測的是被測互感器與標(biāo)準(zhǔn)互感器電流差與二次電流的比值，所以對互感器校驗儀的要求不高。要能校驗什么等級的互感器，基本由標(biāo)準(zhǔn)互感器決定。標(biāo)準(zhǔn)互感器是互感器校驗系統(tǒng)的關(guān)鍵**。對被測互感器進行校驗，除了標(biāo)準(zhǔn)互感器、互感器校驗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。[10]注意事項電流互感器-使用注意事項電流互感器[11]運行時，副邊不允許開路。因為一旦開路，原邊電流均成為勵磁電流，使磁通和副邊電壓**超過正常值而危及人身和設(shè)備安全。因此，上?，F(xiàn)貨銷售電流互感器來電咨詢，電流互感器副邊回路中不許接熔斷器，上?，F(xiàn)貨銷售電流互感器來電咨詢，也不允許在運行時未經(jīng)旁路就拆下電流表、繼電器等設(shè)備。電流互感器運行時，副邊不允許開路，上?，F(xiàn)貨銷售電流互感器來電咨詢。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 120II-P電流互感器.上海現(xiàn)貨銷售電流互感器來電咨詢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上?，F(xiàn)貨銷售電流互感器來電咨詢,電流互感器" src="http://tyunfile.71360.com/WaterMark/UpLoadFile/shcmzdh/2020/2/637167636036010136/6371676360360101362181842.png"></div><p> 電流互感器的常見問題往往與制造缺點有關(guān)，具體如下：電流互感器的絕緣很厚，有的絕緣包繞松散，絕緣層間有皺折，加之真空處理不良，浸漬不完全而造成含氣空腔，從而易引起局部放電故障[12]電容屏尺寸與排列不符合設(shè)計要求，電流互感器故障原因統(tǒng)計[13]甚至少放電容屏，電容極板不光滑平整，甚至錯位或斷裂，使其均壓特性破壞。因此，當(dāng)局部固體絕緣沿面的電場強度達到一定數(shù)值時，就會造成局部放電。上述局部放電的直接后果是使絕緣油裂解，在絕緣層間生成大量的x臘，介損增大。這種放電是有累積效應(yīng)的，任其發(fā)展下去，油中氣體分析將可能出現(xiàn)電弧放電的特征。由于絕緣材料不清潔或含濕高，可能在其表面產(chǎn)生沿面放電。這種情況多見于一次端子引線沿墊塊表面放電某些連接松動或金屬件電位懸浮將導(dǎo)致火花放電，例如一次繞組支持螺母松動，造成一次繞組屏蔽鋁箔電位懸浮，末屏引線接觸或焊接不良甚至斷線，均會引起此類故障。次連接夾板、螺栓、螺母松動，末屏接地螺母松動，抽頭緊固螺母松動等，均可能使接觸電阻增大，從而導(dǎo)致局部過熱故障。此外，現(xiàn)場維護管理不當(dāng)也應(yīng)引起重視。例如，互感器進水受潮，雖然可能與制造廠的密封結(jié)構(gòu)和密封材料有關(guān)，但是。上海定制電流互感器貨期短上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 60III電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上?，F(xiàn)貨銷售電流互感器來電咨詢,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087626920413/6371670876269204131239849.png"></div><p> 上海喆和定制銷售西門子電流互感器互感器的誤差包括比差和角差兩部分。比值誤差簡稱比差，一般用符號f表示，它等于實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，以百分?jǐn)?shù)表示。角差：相角誤差簡稱角差，一般用符號δ表示，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（’）為計算單位。熱穩(wěn)定及動穩(wěn)定倍數(shù)：電力系統(tǒng)故障時，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)熱超過允許限度的電流與電流互感器的額定電流之比。動穩(wěn)定倍數(shù)是電流互感器所能承受的額定電流瞬時值與其額定電流之比。類型區(qū)分編輯按用途分類按照用途不同，電流互感器大致可分為兩類[4]：測量用電流互感器（或電流互感器的測量繞組）：在正常工作電流范圍內(nèi)，向測量、計量等裝置提供電網(wǎng)的電流信息。保護用電流互感器（或電流互感器的保護繞組）：在電網(wǎng)故障狀態(tài)下。 </p><p style="text-indent:25px"> 上海喆和供應(yīng)西門子APT電流互感器在變流實驗臺上對每種電流互感器，一次測注入額定電流的0．1，0．2，…，1倍的電流。二次以開路和閉路兩種方式運行，測得一次電壓和一次電流，可以求出一次測在二次開、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3015LQG系列電流互感器，當(dāng)一次測加30A電流，二次開路，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電流互感器在一次開路或閉路情況下的二次阻抗。對母線穿心式電流互感器一次開路情況下，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。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 100II-P電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上?，F(xiàn)貨銷售電流互感器來電咨詢,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087883095803/6371670878830958036124787.png"></div><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 ALH-0.66 60I 500/1 0.2R 5V </p> <p> 型號 ALH-0.66 D22 20/5 </p> <p> 型號 ALH-0.66 245*60II 5000/5 </p> <p> 型號 ALH-0.66 130*50II 4000/5 </p> <p> 型號 ALH-0.66 40II 600/5 0.2SR 5 </p> <p> 型號 ALH-0.66 100II 3200/5 </p> <p> 型號 ALH-0.66 200*50II 1000/5 </p> <p> 型號 ALH-0.66 170*50II 3000/5 </p> <p> 型號 ALH-0.66 100*85II 4000/5 0.2R 40VA </p> <p> 型號 ALH-0.66 80II 2000/5 0.5R10VA 690V ML </p> <p> 型號 ALH-0.66 30I-I 75/1-TH </p> <p> 型號 ALH-0.66 80II 2000/10.5R10 </p> <p> 型號 ALH-0.66 100*80II 3500/5 0.5R 40VA 1T </p> <p> 型號 ALH-0.66 60II 1200/5 0.2SR 20VA </p> <p> 型號 ALH-0.66 30I-I 150/5 0.2R1T 2.5VA </p> <p> 型號 ALH-0.66 30I-I 75/1H </p> <p> 型號 ALH-0.66 40II 15/5 0.5R 2.5VA 8T </p> <p> 型號 ALH-0.66 120*65II 4000/5 </p> <p> 型號 ALH-0.66 40II 400/5 0.2SR 2.5VA </p> <p> 型號 ALH-0.66 30I 500/1 </p> <p> 型號 ALH-0.66 D22 30/5 </p> <p> 型號 ALH-0.66 100*70II 3500/5 </p> <p> 型號 ALH-0.66 100*85II 4000/1 </p> <p> 型號 ALH-0.66 80II 1000/1 0.5R10VA 690V ML </p> <p> 型號 ALH-0.66 D22 50/5 </p> <p> 型號 ALH-0.66 100*70II 4000/5 </p> <p> 型號 ALH-0.66 60*50II 1500/50.2 SR </p> <p> 型號 ALH-0.66 60II 2000/5 0.2SR40VA </p> <p> 型號 ALH-0.66 130*50II 3000/5 </p> <p> 型號 ALH-0.66 30I-I 200/510VA </p> <p> 型號 ALH-0.66 40II 300/5 0.2SR 2.5VA </p> <p> 型號 ALH-0.66 170*50II 4000/5 </p> <p> 型號 ALH-0.66 80*50II 1000/5 0.2SR 15VA </p> <p> 型號 ALH-0.66 100*85II 3000/5 </p> <p> 型號 ALH-0.66 D8-I 5/5 上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 100*70II電流互感器.上海定制電流互感器貨期短</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 60I電流互感器.上?，F(xiàn)貨銷售電流互感器來電咨詢</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 ALH-0.66 60I 500/5 0.2SR 5VA 1T </p> <p> 型號 ALH-0.66 80II 1000/1ML </p> <p> 型號 ALH-0.66 30I-I 250/5H </p> <p> 型號 ALH-0.66 40II 500/2.5ML </p> <p> 型號 ALH-0.66 80*50II 2500/2.5ML </p> <p> 型號 ALH-0.66 30I-I 60/5ML </p> <p> 型號 ALH-0.66 M8-I 50/5ML </p> <p> 型號 ALH-0.66 60II 800/1ML </p> <p> 型號 ALH-0.66 60*50II 2000/2.5 ML </p> <p> 型號 ALH-0.66 100II 2000/1ML </p> <p> 型號 ALH-0.66 M8-I 30/5 0.5R 2.5VA </p> <p> 型號 ALH-0.66 80II 3000/1 </p> <p> 型號 ALH-0.66 60*50II 1500/1ML </p> <p> 型號 ALH-0.66 50II 700/5ML </p> <p> 型號 ALH-0.66 30I-I 15/1 1R 1VA ML </p> <p> 型號 ALH-0.66 D22 300/5ML </p> <p> 型號 ALH-0.66 D12 100/5XGZZ </p> <p> 型號 ALH-0.66 40I 50/50.5R </p> <p> 型號 ALH-0.66 40I 250/5ZZ </p> <p> 型號 ALH-0.66 30I-I 40/5 0.5R 2.5A 3T </p> <p> 型號 ALH-0.66 30I 125/1ML </p> <p> 型號 ALH-0.66 M8-I 10/5 1R 2.5VA ML </p> <p> 型號 ALH-0.66 40II 200/5 0.2R 2.5VA 1T </p> <p> 型號 ALH-0.66 30I-I 30/1 5VA 5T ML </p> <p> 型號 ALH-0.66 80*50II 1600/5ML </p> <p> 型號 ALH-0.66 60*50II 350/5ML </p> <p> 型號 ALH-0.66 40I 350/1ML </p> <p> 型號 ALH-0.66 30I-I 25/1 5VA 6T ML </p> <p> 型號 ALH-0.66 M8-II 40/5EPZZ </p> <p> 型號 ALH-0.66 40II 750/1ML </p> <p> 型號 ALH-0.66 30I 250/2.5ML </p> <p> 型號 ALH-0.66 30I 120/5ML </p> <p> 型號 ALH-0.66 60II 750/1ML </p> <p> 型號 ALH-0.66 M8-I 5/50.5R </p> <p> 型號 ALH-0.66 80*50II 2000/1ML </p> <p> 型號 ALH-0.66 30I 200/5ML </p> <p> 型號 ALH-0.66 30I-I 10/5 0.5R ML </p> <p> <br /> 上海現(xiàn)貨銷售電流互感器來電咨詢</p><p style="text-indent:25px">上海喆和機電科技有限公司創(chuàng)立于2016-01-25，總部位于上海市，是一家從事機電科技領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓,機電設(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、閥門的批發(fā)、零售。【依法須經(jīng)批準(zhǔn)的項目,經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動】的公司。公司自2016-01-25成立以來，投身于編程控制器，光電傳感器，變頻器，軟啟動器，是電工電氣的主力軍。公司始終以本分踏實的精神和必勝的信念，影響并帶動同事和團隊取得成功。上海喆和機電科創(chuàng)始人李小雅，始終關(guān)注客戶，以優(yōu)化創(chuàng)新的科技，竭誠為客戶提供極好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1046131.html</p></div></div></div></div></div><div id="zxz8pbs" class="page-right twoColRt"><div id="v2cgctp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="eyasjah" 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" 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