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href="http://www.cdcfah.com/cp/third-gkxtjzbyb_plcod/">PLC</a>?上海定制電流互感器來電咨詢歡迎咨詢上海喆和機(jī)電科技供應(yīng)</p><div id="8vuokhw" class="leftbox clearfix"><h1>上海定制電流互感器來電咨詢歡迎咨詢上海喆和機(jī)電科技供應(yīng)</h1><div id="cldsj23" class="proBig"><div id="3nprta3" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167088041488527/6371670880414885276367966.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="nq2v8uv" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167088041488527/6371670880414885276367966.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jipmela" 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來電咨詢,電流互感器</p><p><span>***更新：</span>2020-10-11 08:01:07</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="2liacj8" 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</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="gpmjqhw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3iprt2v" class="box"><p><p> 上海喆和供應(yīng)西門子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200／5的電流互感器，上海定制電流互感器來電咨詢，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，上海定制電流互感器來電咨詢，二次開路時(shí)，用MFl73型萬用表交流10V檔，精度為9kΩ／V，相當(dāng)于在二次回路上串聯(lián)90kΩ的電阻，測得其電壓為2．6V；當(dāng)二次測并接15Ω300磁場變阻器，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，上海定制電流互感器來電咨詢。例如9號150／5互感器，將一次電流調(diào)至135A。上海喆和定制銷售西門子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來電咨詢</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來電咨詢,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167088041488527/6371670880414885276367966.png"></div><p> 電氣調(diào)試是電力工作中一項(xiàng)重要的內(nèi)容，在電氣調(diào)試工作中，二次回路檢查又是一項(xiàng)重要的調(diào)試內(nèi)容，它是關(guān)系到電力系統(tǒng)的測量、保護(hù)、通訊等功能能否發(fā)揮作用的前提。在二次回路中，電流互感器的接線是否正確又是電流二次回路是否正確的基礎(chǔ)，所以電流互感器的接線正確性非常重要。很多電氣調(diào)試人員對它沒有深刻的理解，經(jīng)常搞錯(cuò)，造成諸如差動保護(hù)誤動作、電度表反轉(zhuǎn)等。下面對這個(gè)問題做一個(gè)***、細(xì)致的論述。電氣調(diào)試是電力工作中一項(xiàng)重要的內(nèi)容，在電氣調(diào)試工作中，二次回路檢查又是一項(xiàng)重要的調(diào)試內(nèi)容，它是關(guān)系到電力系統(tǒng)的測量、保護(hù)、通訊等功能能否發(fā)揮作用的前提。在二次回路中，電流互感器的接線是否正確又是電流二次回路是否正確的基礎(chǔ)，所以電流互感器的接線正確性非常重要。很多電氣調(diào)試人員對它沒有深刻的理解，經(jīng)常搞錯(cuò)，造成諸如差動保護(hù)誤動作、電度表反轉(zhuǎn)等。下面對這個(gè)問題做一個(gè)***、細(xì)致的論述。電流互感器的結(jié)構(gòu)較為簡單，由相互絕緣的一次繞組、二次繞組、鐵心以及構(gòu)架、殼體、接線端子等組成。其工作原理與變壓器基本相同，一次繞組的匝數(shù)(N1)較少，直接串聯(lián)于電源線路中，一次負(fù)荷電流。上海電流互感器報(bào)價(jià)上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 40I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來電咨詢,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087691485417/6371670876914854172826101.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 60*50II 1600/5ML </p> <p> 型號 ALH-0.66 30I-I 1/1ML </p> <p> 型號 ALH-0.66 80II 1500/1ML </p> <p> 型號 ALH-0.66 40I 150/5ZZ </p> <p> 型號 ALH-0.66 30I-I 60/1ML </p> <p> 型號 ALH-0.66 80II 750/5ML </p> <p> 型號 ALH-0.66 80*50II 3000/5ML </p> <p> 型號 ALH-0.66 30I-I 125/5ML </p> <p> 型號 ALH-0.66 40II 400/1ML </p> <p> 型號 ALH-0.66 40I 300/1ML </p> <p> 型號 ALH-0.66 30I-I 50/1ML0.5R5 </p> <p> 型號 ALH-0.66 D22 150/5ML </p> <p> 型號 ALH-0.66 30I-I 30/1ML </p> <p> 型號 ALH-0.66 M8-I 75/50.5R </p> <p> 型號 ALH-0.66 30I-I 50/51T </p> <p> 型號 ALH-0.66 100II 1500/5ML </p> <p> 型號 ALH-0.66 40II 700/5ML </p> <p> 型號 ALH-0.66 80*50II 1500/5ML </p> <p> 型號 ALH-0.66 60*50II 2500/5ML </p> <p> 型號 ALH-0.66 40I 15/1 </p> <p> 型號 ALH-0.66 30I 200/50.2RML </p> <p> 型號 ALH-0.66 130III 1200/5 </p> <p> 型號 ALH-0.66 M8-I 50/1ML </p> <p> 型號 ALH-0.66 100*50II 3500/5M </p> <p> 型號 ALH-0.66 M8-I 25/1ML </p> <p> 型號 ALH-0.66 120*50II 2500/1 </p> <p> 型號 ALH-0.66 30I-I 10/11R0.4VA </p> <p> 型號 ALH-0.66 30I 150/50.2RML </p> <p> 型號 ALH-0.66 60I 600/50.2S5VA </p> <p> 型號 ALH-0.66 60II 600/5ML </p> <p> 型號 ALH-0.66 30I-I 300/5H </p> <p> 型號 ALH-0.66 60*50II 2000/5ML </p> <p> 型號 ALH-0.66 60II 1250/5ML </p> <p> 型號 ALH-0.66 30I-I 150/11R5VA </p> <p> 型號 ALH-0.66 50II 750/1ML </p> <p> 型號 ALH-0.66 40I 60/5ZZ </p> <p> 型號 ALH-0.66 120*50II 4000/1M </p> <p> 型號 ALH-0.66 30I-I 150/11R5VA </p> <p> 型號 ALH-0.66 80*50II 800/5ML </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-0.66 120*65II 5000/5ML </p> <p> 型號 ALH-0.66 130III 3500/5 </p> <p> 型號 ALH-0.66 130*50II4000/1ML </p> <p> 型號 ALH-0.66 50*50II 2000/5ML </p> <p> 型號 ALH-0.66 30I 5/11R0.1VA4T </p> <p> 型號 ALH-0.66 60I 1600/5 </p> <p> 型號 ALH-0.66 40I 600/5ML </p> <p> 型號 ALH-0.66 30I-I 100/1 1R 2.5VA 1T ML </p> <p> 型號 ALH-0.66 40I 300/50.2R </p> <p> 型號 ALH 0.66 60II 200/1 2.5VA </p> <p> 型號 ALH-0.66 60I 100/5 </p> <p> 型號 ALH-0.66 30I-I 100/11R2.5V </p> <p> 型號 ALH-0.66 60*50II 1250/5 </p> <p> 型號 ALH-0.66 100*50II 300/5ML </p> <p> 型號 ALH-0.66 D15-I 15/5 </p> <p> 型號 ALH-0.66 80II 2000/5ML </p> <p> 型號 ALH-0.66 100III 200/51R5V </p> <p> 型號 ALH-0.66 80I 1600/5 </p> <p> 型號 ALH-0.66 60I 500/50.2SR </p> <p> 型號 ALH-0.66 30I 75/5 0.5R 2.5V A 2T </p> <p> 型號 ALH-0.66 120*65II 4000/5M </p> <p> 型號 ALH-0.66 30I-I 100/55VA1R </p> <p> 型號 ALH-0.66 30I-I 50/1 1R 0.4VA 1T ML </p> <p> 型號 ALH-0.66 40I 400/5 0.2R </p> <p> 型號 ALH-0.66 30I 100/5 0.2R 2.5VA 2T </p> <p> 型號 ALH-0.66 M8-I 1/5 </p> <p> 型號 ALH-0.66 30I-I 150/1 5VA 0.5R </p> <p> 型號 ALH-0.66 80II 2000/1ML </p> <p> 型號 ALH-0.66 100III 3500/5 </p> <p> 型號 ALH-0.66 50II 200/1 </p> <p> 型號 ALH-0.66 40I 600/5 15VAML </p> <p> <br /> </p> <p> <br /> 上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 30III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來電咨詢,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087835529280/6371670878355292804681260.png"></div><p> 電流互感器的常見問題往往與制造缺點(diǎn)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(jì)要求，電流互感器故障原因統(tǒng)計(jì)[13]甚至少放電容屏，電容極板不光滑平整，甚至錯(cuò)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(qiáng)度達(dá)到一定數(shù)值時(shí)，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(hù)管理不當(dāng)也應(yīng)引起重視。例如，互感器進(jìn)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。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 60II電流互感器.上海電流互感器報(bào)價(jià)</p><p style="text-indent:25px">上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 125*60II-P電流互感器.上海定制電流互感器來電咨詢</p><p> 上海喆和供應(yīng)西門子電流互感器。 </p> <p> <br /> </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(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(yàn)儀的要求不高。要能校驗(yàn)什么等級的互感器，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**。對被測互感器進(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)行特性在電工手冊及各類教材中，對電流互感器二次開路運(yùn)行的結(jié)論是：“電流互感器二次開路產(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)校配電盤的一只無示數(shù)電流表時(shí)發(fā)現(xiàn)，與其相串聯(lián)電流互感器二次開路運(yùn)行，實(shí)測電壓為2.6V，恢復(fù)其原閉路接法，同時(shí)在主回路串入型號、變化相同的電流互感器，二次開路長期運(yùn)行，并不發(fā)熱。這說明：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傳統(tǒng)的結(jié)論相比，有著不容忽視的重大差別。上海定制電流互感器來電咨詢</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，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。公司自創(chuàng)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。上海喆和機(jī)電科不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。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，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1510002.html</p></div></div></div></div></div><div id="bqxu8nz" class="page-right twoColRt"><div id="rgdfcoq" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="k8hnkm8" 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) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="mqna77g" class="recomPic 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