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tcPro"><section class="home-main container clearfix"><div id="38x3m82" class="twoCol"><div id="plulcjl" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<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?，F(xiàn)貨銷售電流互感器貨期快歡迎來電上海喆和機(jī)電科技供應(yīng)</p><div id="gip82ol" class="leftbox clearfix"><h1>上?，F(xiàn)貨銷售電流互感器貨期快歡迎來電上海喆和機(jī)電科技供應(yīng)</h1><div id="ig83wam" class="proBig"><div id="fnfrofw" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087926902204/6371670879269022048294637.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="wjfm3su" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087926902204/6371670879269022048294637.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cfc7mjb" 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?，F(xiàn)貨銷售電流互感器貨期快,電流互感器</p><p><span>***更新：</span>2020-09-29 14:02:17</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="3p2xw2d" 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="7tn8s2z" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="swda88e" class="box"><p><p> 電流互感器ε%誤差曲線校驗(yàn)步驟：⑴按照保護(hù)裝置類型計(jì)算流過電流互感器的一次電流倍數(shù)⑵根據(jù)電流互感器的型號、變比和一次電流倍數(shù)，在10%誤差曲線上確定電流互感器的允許二次負(fù)荷⑶按照對電流互感器二次負(fù)荷**嚴(yán)重的短路類型，計(jì)算電流互感器的實(shí)際二次負(fù)荷⑷比較實(shí)際二次負(fù)荷與允許二次負(fù)荷。如實(shí)際二次負(fù)荷小于允許二次負(fù)荷，表示電流互感器的誤差不超過10%誤差：1）增大連接導(dǎo)線截面或縮短連接導(dǎo)線長度，以減小實(shí)際二次負(fù)荷2）選擇比較大的電流互感器，減小一次電流倍數(shù)，上海現(xiàn)貨銷售電流互感器貨期快，增大允許二次負(fù)荷3）將電流互感器的二次繞組串聯(lián)起來，使允許二次負(fù)荷增大一倍。動、熱穩(wěn)定度需校驗(yàn)電流互感器的動穩(wěn)定度和熱穩(wěn)定度[9]，廠家的產(chǎn)品技術(shù)參數(shù)中都給出了動穩(wěn)定倍數(shù)Kes和熱穩(wěn)定倍數(shù)Kt，因此按下列公式分別校驗(yàn)動穩(wěn)定和熱定度即可。1）動穩(wěn)定度校驗(yàn)Kes×I1N≥2）熱穩(wěn)定度校驗(yàn)（KtI1n)2t≥I⑶∞tima式中，t為熱穩(wěn)定電流時間，上海現(xiàn)貨銷售電流互感器貨期快。額定容量電流互感器二次額定容量要大于實(shí)際二次負(fù)載，上?，F(xiàn)貨銷售電流互感器貨期快，實(shí)際二次負(fù)載應(yīng)為25～**二次額定容量。容量決定二次側(cè)負(fù)載阻抗，負(fù)載阻抗又影響測量或控制精度。負(fù)載阻抗主要受測量儀表和繼電器線圈電阻、電抗及接線接觸電阻、二次連接導(dǎo)線電阻的影響。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 100III-P電流互感器.上?，F(xiàn)貨銷售電流互感器貨期快</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上?，F(xiàn)貨銷售電流互感器貨期快,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087926902204/6371670879269022048294637.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發(fā)熱情況分析對母線穿心式電流互感器，根據(jù)焦耳—楞次定律Q=I2Rt，二次開路時由I2=0，Q2=0，所以二次線圈不會發(fā)熱。但是，當(dāng)二次線圈由閉路轉(zhuǎn)為開路時，母線上功耗增大。對母線穿心式150／5的電流互感器一次電流為額定值時，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，不會發(fā)熱。所有母線穿心式電流互感器在變流實(shí)驗(yàn)臺上斷續(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)臺上進(jìn)行證明，當(dāng)一次線圈電流為額定值時，二次線圈開路，保持一次電流仍為額定電流，雖然二次線圈不會發(fā)熱，但一次線圈功耗量增大。例如44號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?，F(xiàn)貨銷售電流互感器貨期快上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 100*50II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)貨銷售電流互感器貨期快,電流互感器" src="http://tyunfile.71360.com/WaterMark/UpLoadFile/shcmzdh/2020/2/637167087454347244/6371670874543472446544135.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-0.66 100*50II 3000/1ML </p> <p> 型號 ALH-0.66 100II 3000/5ML </p> <p> 型號 ALH-0.66 30I-I 15/5 0.5R 2.5A 8T </p> <p> 型號 ALH-0.66 60*50II 1500/50.5 </p> <p> 型號 ALH-0.66 80II 1250/10.5R15 </p> <p> 型號 ALH-0.66 40II 1000/5ML </p> <p> 型號 ALH-0.66 30I-I 150/110VAM </p> <p> 型號 ALH-0.66 30I-I 30/10.5R5VA </p> <p> 型號 ALH-0.66 80*50II 300/51R5 </p> <p> 型號 ALH-0.66 40I 75/5ZZ </p> <p> 型號 ALH-0.66 30I-I 40/11RML </p> <p> 型號 ALH-0.66 40II 350/5ML </p> <p> 型號 ALH-0.66 30I-I 50/1ML </p> <p> 型號 ALH-0.66 40I 200/5ML </p> <p> 型號 ALH-0.66 30I-I 75/50.5R2.5 </p> <p> 型號 ALH-0.66 40I 350/5 </p> <p> 型號 ALH-0.66 30I-I 250/1ML </p> <p> 型號 ALH-0.66 60II 800/50.2SR5 </p> <p> 型號 ALH-0.66 40II 650/5ML </p> <p> 型號 ALH-0.66 80*50II 1500/1ML </p> <p> 型號 ALH-0.66 60*50II 500/1ML </p> <p> 型號 ALH-0.66 100*50II 3200/5M </p> <p> 型號 ALH-0.66 M8-II 100/5XGZZ </p> <p> 型號 ALH-0.66 40I 40/5 </p> <p> 型號 ALH-0.66 100II I800/5ML </p> <p> 型號 ALH-0.66 80II 1000/5ML </p> <p> 型號 ALH-0.66 M8-I 20/5ML </p> <p> 型號 ALH-0.66 60III 600/5ML </p> <p> 型號 ALH-0.66 50II 600/115VAML </p> <p> 型號 ALH-0.66 30I 160/5ML </p> <p> 型號 ALH-0.66 30I-I 10/1ML </p> <p> 型號 ALH-0.66 60II 1000/5ML </p> <p> 型號 ALH-0.66 80*50II 2500/0.5 </p> <p> 型號 ALH-0.66 60*50II 200/5ML </p> <p> 型號 ALH-0.66 M8-I 40/50.5R </p> <p> 型號 ALH-0.66 60II 500/1ML </p> <p> 型號 ALH-0.66 60I I 1500/5 0.5R 15VA ML </p> <p> 型號 ALH-0.66 40II 300/1 10VA ML </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 40II 300/5ML </p> <p> 型號 ALH-0.66 30I-I 25/5ML </p> <p> 型號 ALH-0.66 M8-I 20/1ML </p> <p> 型號 ALH-0.66 30I-I 50/11R2.5VA </p> <p> 型號 ALH-0.66 100III 2000/5XG </p> <p> 型號 ALH-0.66 40II 1200/5 </p> <p> 型號 ALH-0.66 100*50II 600/5ML </p> <p> 型號 ALH-0.66 50III 400/5 </p> <p> 型號 ALH-0.66 60*50II 3000/5ML </p> <p> 型號 ALH-0.66 100*50II 2000/5M </p> <p> 型號 ALH-0.66 40II 750/5ML </p> <p> 型號 ALH-0.66 40I 500/1MR </p> <p> 型號 ALH-0.66 60*50II 800/5ML </p> <p> 型號 ALH-0.66 30I-I 20/50.5R5VA </p> <p> 型號 ALH-0.66 30I 40/50.5R2.5V </p> <p> 型號 ALH-0.66 40I 150/5ML </p> <p> 型號 ALH-0.66 M8-II 75/5EPZZ </p> <p> 型號 ALH-0.66 80*50II 1300/5ML </p> <p> 型號 ALH-0.66 30I 250/5ML </p> <p> 型號 ALH-0.66 40I 30/5ZZ </p> <p> 型號 ALH-0.66 30I 125/5 </p> <p> 型號 ALH-0.66 30I-I 100/1ML </p> <p> 型號 ALH-0.66 60II 150/5ML </p> <p> 型號 ALH-0.66 50II 2000/5ML </p> <p> 型號 ALH-0.66 60II 450/5ML </p> <p> 型號 ALH-0.66 170*100II 4000/1 </p> <p> 型號 ALH-0.66 40II 300/1ML </p> <p> 型號 ALH-0.66 D12 600/5EPZZ </p> <p> 型號 ALH-0.66 50II 900/5ML </p> <p> 型號 ALH-0.66 80*50II 750/1ML </p> <p> 型號 ALH-0.66 60*50II 1500/1 </p> <p> 型號 ALH-0.66 30I-I 25/5H </p> <p> 型號 ALH-0.66 80III 1000/5XG </p> <p> 型號 ALH-0.66 60II 250/5ML </p> <p> 型號 ALH-0.66 40II 800/1ML </p> <p> 型號 ALH-0.66 D12 300/5EPZZ </p> <p> 型號 ALH-0.66 80*50II 1200/5ML </p> <p> 型號 ALH-0.66 M8-II 50/50.5R </p> <p> 型號 ALH-0.66 80*50II 4000/5ML </p> <p> <br /> 上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 D15-II電流互感器.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海現(xiàn)貨銷售電流互感器貨期快,電流互感器" src="http://tyunfile.71360.com/UpLoadFile/shcmzdh/2020/2/637167087626920413/6371670876269204131239849.png"></div><p style="text-indent:25px"> 上海喆和銷售電流互感器。對于電流互感器退磁，一次繞組開路，二次繞組通以工頻電流，從零開始逐漸增加到一定的電流值(該電流值與互感器的設(shè)計(jì)測量上限有關(guān)，一般為額定電流的20-50%左右?？梢赃@樣判斷，如果電流突然急劇變大，此時表示鐵芯以進(jìn)入磁飽和階段)。然后再將電流緩慢降為零，如此重復(fù)2-3次。在斷開電源前，應(yīng)將一次繞組短接，才斷開電源。鐵芯退磁完成。此方法稱開路退磁法。對于有些電流互感器，由于二次繞組的匝數(shù)都比較多。若采用開路退磁法，開路的繞組可能產(chǎn)生高電壓。因此可以在二次繞組接上較大的電阻(額定阻抗的10-20倍)。一次繞組通以電流，從零漸變到互感器一次繞組的允許的額定電流，再漸變到零，如此重復(fù)2-3次。由于接有負(fù)載鐵芯可能不能完全退磁。由于一次繞組的額定電流有限制，過大的話可能燒壞一次繞組。如果接有負(fù)載的二次繞組產(chǎn)生電壓不是過高的話，可以加大二次繞組的負(fù)載電阻。這樣可以提高退磁效果。3、電流互感器誤差試驗(yàn)互感器誤差試驗(yàn)一般采用被測互感器與標(biāo)準(zhǔn)互感器進(jìn)行比較，兩互感器的二次電流差即為被測互感器誤差。此種檢驗(yàn)方法稱比較法。標(biāo)準(zhǔn)互感器要求比被測互感器高出二個等級，此時標(biāo)準(zhǔn)互感器誤差可忽略不計(jì)。上海喆和定制銷售西門子APT（原上海二工）ALH-0.66 120*65II電流互感器.上海現(xiàn)貨銷售電流互感器貨期快</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 180II電流互感器.上?，F(xiàn)貨銷售電流互感器貨期快</p><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，造成諸如差動保護(hù)誤動作、電度表反轉(zhuǎn)等。下面對這個問題做一個***、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，造成諸如差動保護(hù)誤動作、電度表反轉(zhuǎn)等。下面對這個問題做一個***、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?，F(xiàn)貨銷售電流互感器貨期快</p><p 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