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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="r879wtf" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>杭州電流互感器哪家專業(yè),電流互感器</p><p><span>***更新：</span>2021-01-29 12:17:38</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="pbnfuv7" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">啟東雙贏電子科技有限公司</a></p><p><span>聯(lián)系人：</span>楊生</p><p><span>郵箱: </span>jmin_yang@126.com</p><p><span>電話: </span>18666184026</p><p><span>傳真: </span>0513_</p><p><span>網(wǎng)址: </span>http://www.qdsy-sensor.cn</p><p><span>手機(jī): </span>0513-86378688</p><p><span>地址: </span>寅陽鎮(zhèn)洪佳路8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="zj2gta7" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="z8qmegi" class="box"><p><p style="text-indent:25px">電流互感器接入式測量：采用二臺電流互感器，杭州電流互感器哪家專業(yè)，杭州電流互感器哪家專業(yè)，接成不完全星形，用以測量三相平衡或不平衡線路中的三相電流。采用三臺電流互感器，接成完全星形接法，用以測量三相平衡或不平衡線路中的三相電流。交流電度的測量：為了擴(kuò)大交流電度表的量程，杭州電流互感器哪家專業(yè)，工廠比較常用的是采用電流互感器的方法來擴(kuò)大量程。采用單相電度表加電流互感器的測量方法，可用于測量三相平衡或單相電度計量。采用二元件三相三線有功電度表，加二個電流互感器的測量方法?？捎糜跍y量三相平衡或不平衡線路中的電度計量。采用三相四線有功電度表，加三個電流互感器的測量方法。可測量三相平衡或不平衡線路中的電度計量。電流互感器接入式測量：采用二臺電流互感器，接成不完全星形。杭州電流互感器哪家專業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州電流互感器哪家專業(yè),電流互感器" src="https://tyunfile.71360.com/UploadFile/shuangying/637314759981523437/7460069.png"></div><p style="text-indent:25px">在單相回路中*有一個回路，這樣可用一臺電流互感器來測量回路中的電流。我們實際使用的電燈的回路中就是采用這種方式。在三相三線的電氣回路中，因為沒有相線和中性線間負(fù)荷，便可以用兩臺電流互感器，接成V型接線的方式，接二只電流表測量電流。這種接線方法：是將兩只電流表，接在二次線圖的公用導(dǎo)線上。為了節(jié)約器材和簡化接線，在三相負(fù)荷基本平衡時，也可以用一臺電流互感器接一只電流表參考使用。同時在三相三線式的回路里，有時也采用三臺電流互感器接成角型接線，分別測量三相電流。在三相四線制供電系統(tǒng)中，應(yīng)安裝三臺電流互感器分別供電流表使用，接線方式可采用星形接線。上海電流互感器價錢多少三角形接線方式將三相電流互感器二次繞組按極性頭尾相接。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州電流互感器哪家專業(yè),電流互感器" src="https://tyunfile.71360.com/UploadFile/shuangying/637314759976767578/5240096.png"></div><p style="text-indent:25px">電流互感器是依據(jù)電磁感應(yīng)原理將一次側(cè)大電流轉(zhuǎn)換成二次側(cè)小電流來測量的儀器。電流互感器是由閉合的鐵心和繞組組成。它的一次側(cè)繞組匝數(shù)很少，串在需要測量的電流的線路中。因此它經(jīng)常有線路的全部電流流過，二次側(cè)繞組匝數(shù)比較多，串接在測量儀表和保護(hù)回路中，電流互感器在工作時，它的二次側(cè)回路始終是閉合的，因此測量儀表和保護(hù)回路串聯(lián)線圈的阻抗很小，電流互感器的工作狀態(tài)接近短路。電流互感器是把一次側(cè)大電流轉(zhuǎn)換成二次側(cè)小電流來測量，二次側(cè)不可開路。</p><p style="text-indent:25px">電流互感器基本特點(diǎn)：1、一次線圈串聯(lián)在電路中，并且匝數(shù)很少，因此，一次線圈中的電流完全取決于被測電路的負(fù)荷電流．而與二次電流無關(guān)；2、電流互感器二次線圈所接儀表和繼電器的電流線圈阻抗都很小，所以正常情況下，電流互感器在近于短路狀態(tài)下運(yùn)行。電流互感器一、二次額定電流之比，稱為電流互感器的額定互感比：kn=I1n/I2n因為一次線圈額定電流I1n己標(biāo)準(zhǔn)化，二次線圈額定電流I2n統(tǒng)一為5（1或0.5）安，所以電流互感器額定互感比亦已標(biāo)準(zhǔn)化。kn還可以近似地表示為互感器一、二次線圈的匝數(shù)比，即kn≈kN=N1/N2式中N1.N2為一、二線圈的匝數(shù)。電流互感器按照繞組匝數(shù)分：單匝式、多匝式。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州電流互感器哪家專業(yè),電流互感器" src="https://tyunfile.71360.com/UploadFile/shuangying/637311261199238281/7326341.png"></div><p style="text-indent:25px">電流互感器按絕緣介質(zhì)分：干式電流互感器，由普通絕緣材料包扎，經(jīng)浸漬漆處理的，有塑料外殼和無塑料外殼的電流互感器，多數(shù)為低壓電流互感器。澆注式電流互感器。用環(huán)氧樹脂或其他樹脂混合材料澆注成型的電流互感器。油浸式電流互感器。由絕緣紙和絕緣油作為絕緣，一般為戶外型。目前我國在各種電壓等級均為常用。氣體絕緣電流互感器。主絕緣由氣體構(gòu)成。瓷絕緣，多數(shù)一杯澆注絕緣取代。電流互感器按絕緣介質(zhì)分類就是以上的幾種，它們在生活中都比較常見。電流互感器可用來擴(kuò)大交流電流表的量程。杭州電流互感器哪家專業(yè)</p><p style="text-indent:25px">電流互感器的工作原理、等值電路與一般變壓器相同。杭州電流互感器哪家專業(yè)</p><p style="text-indent:25px">電流互感器常見故障原因：①由于結(jié)構(gòu)和質(zhì)量上的缺陷,在運(yùn)行中,發(fā)生螺桿與嵌件螺孔接觸不良,造成開路;②由于連接片膠木過長,旋轉(zhuǎn)端子金屬片未壓在連接片上,而誤壓在膠木套上,致使開路;③修試工作中失誤。如忘記將繼電器內(nèi)部觸頭接好,驗收時沒發(fā)現(xiàn);④二次線端子接頭壓接不緊,回路電流很大時,發(fā)現(xiàn)燒斷或氧化過甚造成開路;⑤室外端子柜、接線盒進(jìn)潮,端子螺絲和墊片銹蝕過重,造成開路。發(fā)現(xiàn)這些鼓掌情況時，請務(wù)必聯(lián)系專業(yè)人員進(jìn)行維護(hù)，以便后續(xù)使用。杭州電流互感器哪家專業(yè)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3066691.html</p></div></div></div></div></div><div id="segdkrt" class="page-right twoColRt"><div id="o33wnpw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ml3w2kw" 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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