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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="oxjaheg" 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)品關鍵詞：</span>合肥電流互感器哪家比較便宜,電流互感器</p><p><span>***更新：</span>2021-01-31 01:14:04</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="ueqnk8a" 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: </span>0513-86378688</p><p><span>地址: </span>寅陽鎮(zhèn)洪佳路8號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ktvsk32" class="page-proshow02"><p class="title">詳細說明</p><div id="q8eg3jx" class="box"><p><p style="text-indent:25px">電流互感器普遍用于發(fā)電廠、變電站、用電單位配電控制盤上的電氣儀表一般采用0.5級或0.2級；用于設備、線路的繼電保護一般不低于1級；用于電能計量時，視被測負荷容量或用電量多少依據(jù)規(guī)程要求來選擇。互感器比差：電流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的一次電流的差值，與折算到二次側的一次電流的比值，以百分數(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，反之為負值，合肥電流互感器哪家比較便宜，用分（’）為計算單位，合肥電流互感器哪家比較便宜。組合式電流互感器是將兩臺或三臺電流互感器的一次，合肥電流互感器哪家比較便宜、二次繞組及鐵心和電流互感器的一、二次繞組及鐵心。合肥電流互感器哪家比較便宜</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="合肥電流互感器哪家比較便宜,電流互感器" src="https://tyunfile.71360.com/UploadFile/shuangying/637311261302529296/271415.png"></div><p style="text-indent:25px">電流互感器故障處理：發(fā)現(xiàn)電流互感器二二次開路,應先分清故障屬哪--組電流回路、開路的相別、對保護有無影響等。匯報調度,解除可能誤動作的保護。盡量減少次負荷電流。若電流互感器嚴重損傷,應轉移負荷,停電檢查處理(盡量經(jīng)倒運行方式,使用戶不停電)。盡快設法在就近的試驗端子上將電流互感器二次短路,再檢查處理開路點。短接時,應使用良好的短接線,并按圖紙進行。若短接時發(fā)現(xiàn)火花,說明短接有效。故障點在短接點以下的回路中,可進一步查找。若短接時沒有火花,短接無效。合肥電流互感器哪家比較便宜電流互感器二次可以短路,但是不得開路;</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="合肥電流互感器哪家比較便宜,電流互感器" src="https://tyunfile.71360.com/UploadFile/shuangying/637314759981523437/7460069.png"></div><p style="text-indent:25px">電流互感器的應用:1、交流電流的測量.設備是否運行在額定電流值，設置電流測量裝置是必要的技術措施。有關規(guī)定40KW以上的設備，必須裝設電流表進行監(jiān)控。交流電流的測量有直接測量和經(jīng)電流互感器擴大測量的方式。直接測量就是將適當?shù)碾娏鞅泶与娏骰芈飞?。而電路均為?jīng)電流互感器接入式測量。采用一臺電流互感器測量三相平衡線路中的電流。電流互感器選擇的是以電流表量程依據(jù)，而電流表的量程則是根據(jù)負載電流的實際值，應占電流表總量程的2/3至滿度值之間。??</p><p style="text-indent:25px">電流互感器是依據(jù)電磁感應原理將一次側大電流轉換成二次側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，二次側繞組匝數(shù)比較多，串接在測量儀表和保護回路中，電流互感器在工作時，它的二次側回路始終是閉合的，因此測量儀表和保護回路串聯(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大電流轉換成二次側小電流來測量，二次側不可開路。電流互感器的安裝必須牢固，互感器外殼的金屬外露部分應可靠接地。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="合肥電流互感器哪家比較便宜,電流互感器" src="https://tyunfile.71360.com/UploadFile/shuangying/637314759974326172/7404453.png"></div><p style="text-indent:25px">電流互感器和變壓器一樣是依據(jù)電磁感應原理將一次側大電流轉換成二次側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。它的一次側繞組匝數(shù)很少，串在需要測量的電流的線路中。二次側繞組匝數(shù)比較多，串接在測量儀表和保護回路中，電流互感器在工作時，它的二次側回路始終是閉合的，因此測量儀表和保護回路串聯(lián)線圈的阻抗很小，電流互感器的工作狀態(tài)接近短路。因為和電磁感應原理一樣，所有電流互感器運用起來非常簡單快捷，無需對工作人員進行過多的培訓。電流互感器的結構較為簡單，由相互絕緣的一次繞組、二次繞組、鐵心以及構架、殼體、接線端子等組成。合肥電流互感器哪家比較便宜</p><p style="text-indent:25px">單相式接線只有一只電流互感器組成，接線簡單。合肥電流互感器哪家比較便宜</p><p style="text-indent:25px">電流互感器根據(jù)磁通可以分析出:pt不能短路,短路回產(chǎn)生過流,ct不能開路,開路回產(chǎn)生高壓。主要區(qū)別是正常運行時工作狀態(tài)大不相同,主要表現(xiàn)為:電流互感器二次可以短路,但是不得開路;對于二次側的負荷來說,而電流互感器的一次卻內阻很大,以至可以認為是一個內阻無窮大的電流源。電流互感器的工作原理、等值電路與一般變壓器相同，只是其原邊繞組串聯(lián)在被測電路中，且匝數(shù)很少；副邊繞組接電流表、繼電器電流線圈等低阻抗負載，近似短路。合肥電流互感器哪家比較便宜</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3084655.html</p></div></div></div></div></div><div id="glifm2w" class="page-right twoColRt"><div id="z8oqdub" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="folc2yp" 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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="ycjgn2k" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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