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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>?上海銷售電流互感器交貨快歡迎咨詢上海喆和機(jī)電科技供應(yīng)</p><div id="3v43n49" class="leftbox clearfix"><h1>上海銷售電流互感器交貨快歡迎咨詢上海喆和機(jī)電科技供應(yīng)</h1><div id="rzyh2gy" class="proBig"><div id="hqfahyk" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087691485417/6371670876914854172826101.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8rawyf7" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087691485417/6371670876914854172826101.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="tsp8zpz" 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>上海銷售電流互感器交貨快,電流互感器</p><p><span>***更新：</span>2020-12-22 06:03:25</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="rfcmd3t" 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="swdfmdp" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="rqx7t4v" class="box"><p><p style="text-indent:25px"> 上海喆和供應(yīng)西門子APT電流互感器。電流互感器接線方式額定變比和誤差互感器的額定變比KN指電壓互感器的額定電壓比和電流互感器的額定電流比。前者定義為原邊繞組額定電壓U1N與副邊繞組額定電壓U2N之比；后者則為額定電流I1N與I2N之比。即KN=U1N/U2N（對(duì)電壓互感器）KN=I1N/I2N（對(duì)電流互感器）電壓（或電流）互感器原邊電壓（或電流）在一定范圍內(nèi)變動(dòng)時(shí)，一般規(guī)定為～（或10～120%I1N），副邊電壓（或電流）應(yīng)按比例變化，而且原、副邊電壓（或電流）應(yīng)該同相位。但由于互感器存在內(nèi)阻抗、勵(lì)磁電流和損耗等因素而使比值及相位出現(xiàn)誤差，分別稱為比差和角差。比差為經(jīng)折算后的二次電壓（或二次電流）與一次電壓（或一次電流）量值大小之差對(duì)后者之比，即fU為電壓互感器的比差，fI為電流互感器的比差。當(dāng)KNU2>U1（或KNI2>I1）時(shí)，比差為正，上海銷售電流互感器交貨快，反之為負(fù)。對(duì)沒有采取補(bǔ)償措施的電壓互感器，比差為負(fù)，角差一般為正值，比差的比較的值和角差均隨電壓的增大而減??；鐵心飽和時(shí)，上海銷售電流互感器交貨快，比差與角差均隨電壓的增大而增大。對(duì)于沒有采取補(bǔ)償措施的電流互感器，比差為負(fù)值，角差為正值，上海銷售電流互感器交貨快，比差的比較的值和角差均隨電流增大而減小。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 100*60II-P電流互感器.上海銷售電流互感器交貨快</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海銷售電流互感器交貨快,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087691485417/6371670876914854172826101.png"></div><p style="text-indent:25px"> 上海喆和銷售西門子電流互感器。100多年來的傳統(tǒng)結(jié)論與科技進(jìn)步、材料更新、結(jié)構(gòu)變化、工藝革新的現(xiàn)代新型電流互感器的實(shí)際二次開路電壓相比存在著巨大差別，所以傳統(tǒng)結(jié)論應(yīng)當(dāng)修正。二、電流互盛器二次開路時(shí)發(fā)熱情況分析對(duì)母線穿心式電流互感器，根據(jù)焦耳—楞次定律Q=I2Rt，二次開路時(shí)由I2=0，Q2=0，所以二次線圈不會(huì)發(fā)熱。但是，當(dāng)二次線圈由閉路轉(zhuǎn)為開路時(shí)，母線上功耗增大。對(duì)母線穿心式150／5的電流互感器一次電流為額定值時(shí)，經(jīng)過計(jì)算其功耗增量**小為9W，額定為17W。由于母線粗長，散熱忍受力好，不會(huì)發(fā)熱。所有母線穿心式電流互感器在變流實(shí)驗(yàn)臺(tái)上斷續(xù)運(yùn)行長達(dá)2年半之久，從未發(fā)現(xiàn)燒壞一例，充分體現(xiàn)了目前實(shí)用新型電流互感器發(fā)熱特性與傳統(tǒng)結(jié)論截然不同。已被平度淘汰的LQG系列電流互感器在交流實(shí)驗(yàn)臺(tái)上進(jìn)行證明，當(dāng)一次線圈電流為額定值時(shí)，二次線圈開路，保持一次電流仍為額定電流，雖然二次線圈不會(huì)發(fā)熱，但一次線圈功耗量增大。例如44號(hào)30／5的電流互感器，其一次壓降增量為2．5V，功耗增大75W，一次線圈略微發(fā)熱。上海直銷電流互感器信譽(yù)好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="上海銷售電流互感器交貨快,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087771928659/6371670877719286596119342.png"></div><p style="text-indent:25px">對(duì)于保護(hù)用電流互感器的裝設(shè)地點(diǎn)應(yīng)按盡量消除主保護(hù)裝置的不保護(hù)區(qū)來設(shè)置。例如：若有兩組電流互感器，且位置允許時(shí)，應(yīng)設(shè)在斷路器兩側(cè)，使斷路器處于交叉保護(hù)范圍之中6）為了防止支柱式電流互感器套管閃絡(luò)造成母線故障，電流互感器通常布置在斷路器的出線或變壓器側(cè)7）為了減輕發(fā)電機(jī)內(nèi)部故障時(shí)的損傷，用于自動(dòng)調(diào)節(jié)勵(lì)磁裝置的電流互感器應(yīng)布置在發(fā)電機(jī)定子繞組的出線側(cè)。為了便于分析和在發(fā)電機(jī)并入系統(tǒng)前發(fā)現(xiàn)內(nèi)部故障，用于測量儀表的電流互感器宜裝在發(fā)電機(jī)中性點(diǎn)側(cè)。接線方式電流互感器的接線方式按其所接負(fù)載的運(yùn)行要求確定。**常用的接線方式為單相、三相星形和不完全星形三種，分別如圖4a、圖4b和圖4c。電流互感器接線方式額定變比和誤差：電流互感器的額定變比KN指電流互感器的額定電流比。即：KN=I1N/I2N電流互感器原邊電流在一定范圍內(nèi)變動(dòng)時(shí)，一般規(guī)定為10～120%I1N，副邊電流應(yīng)按比例變化，而且原、副邊電壓（或電流）應(yīng)該同相位。但由于互感器存在內(nèi)阻抗、勵(lì)磁電流和損耗等因素而使比值及相位出現(xiàn)誤差，分別稱為比差和角差。比差為經(jīng)折算后的二次電流與一次電流量值大小之差對(duì)后者之比，即fI 為電流互感器的比差。當(dāng)KNI2>I1時(shí)，比差為正，反之為負(fù)。</p><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(huì)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(dòng)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(dòng)，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(huì)引起此類故障。次連接夾板、螺栓、螺母松動(dòng)，末屏接地螺母松動(dòng)，抽頭緊固螺母松動(dòng)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-0.66 120*50II電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海銷售電流互感器交貨快,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087926902204/6371670879269022048294637.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(hào) ALH-0.66 80*50II 750/5ML </p> <p> 型號(hào) ALH-0.66 30II 50/1 </p> <p> 型號(hào) ALH-0.66 30II 25/5 </p> <p> 型號(hào) ALH-0.66 30II 100/1 </p> <p> 型號(hào) ALH-0.66 30II 60/1 </p> <p> 型號(hào) ALH-0.66 30II 30/5 </p> <p> 型號(hào) ALH-0.66 30II 75/1 </p> <p> 型號(hào) ALH-0.66 30II 40/5 </p> <p> 型號(hào) ALH-0.66 30I-I 300/5ML </p> <p> 型號(hào) ALH-0.66 30I 250/50.2R2.5V </p> <p> 型號(hào) ALH-0.66 40II 75/5ML </p> <p> 型號(hào) ALH-0.66 30I 600/5 </p> <p> 型號(hào) ALH-0.66 30I-I 250/5ML </p> <p> 型號(hào) ALH-0.66 D12 40/1 </p> <p> 型號(hào) ALH-0.66 40II 40/5 </p> <p> 型號(hào) ALH-0.66 M8-II 80/5 </p> <p> 型號(hào) ALH-0.66 D22 600/5 </p> <p> 型號(hào) ALH-0.66 80I 1250/5 </p> <p> 型號(hào) ALH-0.66 100*50II 500/1 </p> <p> 型號(hào) ALH-0.66 60II 3000/5 </p> <p> 型號(hào) ALH-0.66 30I 45/1 </p> <p> 型號(hào) ALH-0.66 50III 250/5 </p> <p> 型號(hào) ALH-0.66 60I 1250/5 </p> <p> 型號(hào) ALH-0.66 40II 20/5 </p> <p> 型號(hào) ALH-0.66 M8-I 120/5 </p> <p> 型號(hào) ALH-0.66 40I 300/5ML </p> <p> 型號(hào) ALH-0.66 80I 700/5 </p> <p> 型號(hào) ALH-0.66 80II 1500/5 0.2SR 20VA 1T 0VA 1T </p> <p> 型號(hào) ALH-0.66 80I 1000/5 0.2SR 10VA 1T 0VA 1T </p> <p> 型號(hào) ALH-0.66 30I 80/5ML </p> <p> 型號(hào) ALH-0.66 60I 2000/1 </p> <p> 型號(hào) ALH-0.66 D8-I 10/5 </p> <p> 型號(hào) ALH-0.66 40I 120/5 </p> <p> 型號(hào) ALH-0.66 100*50II 1600/5ML </p> <p> 型號(hào) ALH-0.66 30I-I 200/51R10VA1T </p> <p> 型號(hào) ALH-0.66 40I 500/5ML </p> <p> 型號(hào) ALH-0.66 100*85II 4000/5 </p> <p> 型號(hào) ALH-0.66 80II 1200/10.5R10VA 690V ML VA ML </p> <p> 型號(hào) ALH-0.66 30I-I 200/1 </p> <p> 型號(hào) ALH-0.66 50II 1000/5 0.5R </p> <p> 型號(hào) ALH-0.66 170*50II 5000/5 上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 120III-P電流互感器.上海直銷電流互感器信譽(yù)好</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 60II電流互感器.上海銷售電流互感器交貨快</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(hào) </p> <p> ALH-0.66 50III 300/5 </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 20/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 50II 1000/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60*50II 800/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 100/5H </p> <p> 型號(hào) </p> <p> ALH-0.66 60I 80/51R2.5VA2 </p> <p> 型號(hào) </p> <p> ALH-0.66 80II 1200/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 40/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60I 800/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 20/50.5R2.5 </p> <p> 型號(hào) </p> <p> ALH-0.66 80*50II 300/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 50II 600/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 75/11RML </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 100/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 450/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60II 400/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60II 2000/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 80*50II 1250/5 </p> <p> 型號(hào) </p> <p> ALH-0.66 60*50II 1250/10.5 </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 100/11R2.5V </p> <p> 型號(hào) </p> <p> ALH-0.66 D12 250/5XGZZ </p> <p> 型號(hào) </p> <p> ALH-0.66 M8-II 40/50.5R </p> <p> 型號(hào) </p> <p> ALH-0.66 30I 40/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 15/1 0.5R 5VA </p> <p> 型號(hào) </p> <p> ALH-0.66 80II 500/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 100II 1250/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 M8-I 75/1ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I 100/5ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60III 1500/5EP </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 40/51T </p> <p> 型號(hào) </p> <p> ALH-0.66 100*50II 1500/5 ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60I 800/5 0.2SR 5V </p> <p> 型號(hào) </p> <p> ALH-0.66 40I 400/5 ML </p> <p> 型號(hào) </p> <p> ALH-0.66 50II 1500/5 ML </p> <p> 型號(hào) </p> <p> ALH-0.66 40II 700/1 ML </p> <p> 型號(hào) </p> <p> ALH-0.66 M8-I 15/1 ML </p> <p> 型號(hào) </p> <p> ALH-0.66 60II 1200/5 ML </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 20/1 1R 2.5VA </p> <p> 型號(hào) </p> <p> ALH-0.66 30I-I 300/1 10VA ML 上海銷售電流互感器交貨快</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、有夢想有目標(biāo)，有組織有體系的公司，堅(jiān)持于帶領(lǐng)員工在未來的道路上大放光明，攜手共畫藍(lán)圖，在上海市市轄區(qū)等地區(qū)的電工電氣行業(yè)中積累了大批忠誠的客戶粉絲源，也收獲了良好的用戶口碑，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** 上海喆和機(jī)電科和您一起攜手步入輝煌，共創(chuàng)佳績，一直以來，公司貫徹執(zhí)行科學(xué)管理、創(chuàng)新發(fā)展、誠實(shí)守信的方針，員工精誠努力，協(xié)同奮取，以品質(zhì)、服務(wù)來贏得市場，我們一直在路上！</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2509527.html</p></div></div></div></div></div><div id="pnegcdk" class="page-right twoColRt"><div id="fjv23fw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8imi3ct" 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" 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