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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368711884766/5770221.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="aurj2as" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368711884766/5770221.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="x8dkcpz" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>遼寧變壓器交流耐壓試驗(yàn),變壓器</p><p><span>***更新：</span>2020-09-22 02:07:42</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="hwoq3xu" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市展榮新精密電子有限公司</a></p><p><span>聯(lián)系人：</span>喻孟峨</p><p><span>郵箱: </span>113527410@qq.com</p><p><span>電話: </span>15012892536</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0755-27923475</p><p><span>地址: </span>航城街道黃田社區(qū)崗貝工業(yè)區(qū)綜合樓10棟401</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="nmjgdas" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="wlnk3s7" class="box"><p><p style="text-indent:25px">高壓變壓器容量測(cè)試儀是我公司專門研制開(kāi)發(fā)的用于變壓器容量測(cè)量和損耗參數(shù)測(cè)量的高精度儀器。高壓變壓器容量測(cè)試儀采用高效可充電電池，無(wú)需外接電源即可工作，充電時(shí)可連續(xù)測(cè)量500次一次；同時(shí)內(nèi)部數(shù)字合成三相標(biāo)準(zhǔn)正弦波信號(hào)（不簡(jiǎn)單逆變交流輸出，保證測(cè)試數(shù)據(jù)在非定額條件下的準(zhǔn)確性），功放可提供三相精密交流測(cè)試。高壓變壓器容量測(cè)試儀在測(cè)量變壓器容量和變壓器短路損耗時(shí)，不需要外部三相測(cè)試電源和電壓調(diào)節(jié)器和上電流等輔助設(shè)備，簡(jiǎn)化了接線，遼寧變壓器交流耐壓試驗(yàn)，遼寧變壓器交流耐壓試驗(yàn)，大幅提高了工作效率，測(cè)試結(jié)果精度達(dá)到99%，遼寧變壓器交流耐壓試驗(yàn)。變壓器是利用電磁感應(yīng)原理，從一個(gè)電路向另一個(gè)電路傳遞電能或傳輸信號(hào)的一種電器。遼寧變壓器交流耐壓試驗(yàn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧變壓器交流耐壓試驗(yàn),變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368711884766/5770221.png"></div><p style="text-indent:25px">短路承受能力試驗(yàn)是投擬運(yùn)行中極為嚴(yán)酷的短路故障，即網(wǎng)絡(luò)容量足夠大、負(fù)載阻抗為零，而且在電壓過(guò)零時(shí)獲得zui人的非對(duì)稱電流。變壓器繞組、分接開(kāi)關(guān)、套管、引線及各機(jī)械緊固部件將承受來(lái)自短路電流所產(chǎn)生的巨大的動(dòng)穩(wěn)定效應(yīng)與熱效應(yīng)的考核。從而驗(yàn)證結(jié)構(gòu)的合理性與運(yùn)行的可靠性。變壓器承受熱穩(wěn)定的能力，通常按照產(chǎn)品在運(yùn)行溫度下發(fā)生短路，對(duì)稱短路電流產(chǎn)生的熱效應(yīng)全部用來(lái)提高繞組溫度；GB 1094.5規(guī)定變壓器承受熱穩(wěn)定能力可通過(guò)計(jì)算來(lái)驗(yàn)證。承受短路的動(dòng)穩(wěn)定能力應(yīng)通過(guò)試驗(yàn)或計(jì)算和設(shè)計(jì)驗(yàn)證其結(jié)構(gòu)、工藝和制造的討靠性；試驗(yàn)通常在強(qiáng)電流試驗(yàn)站進(jìn)行；試驗(yàn)電源可以是網(wǎng)絡(luò)，也可以是沖擊發(fā)電機(jī)組，一般均需配置合適的短路試驗(yàn)變壓器和電抗器。成都小型變壓器測(cè)試變壓器綜合測(cè)試儀一般在使用前一定要經(jīng)過(guò)嚴(yán)格的培訓(xùn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧變壓器交流耐壓試驗(yàn),變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368417158203/3339392.png"></div><p style="text-indent:25px">三相變壓器應(yīng)使用三相電源進(jìn)行試驗(yàn)，沒(méi)有三相電源也可使用單相電源；使用單相電源時(shí)，D聯(lián)結(jié)的繞組單相電源應(yīng)施加在三角形的兩個(gè)角上；試驗(yàn)期間該單相電源應(yīng)相當(dāng)于三相試驗(yàn)的線電壓。Y聯(lián)結(jié)的繞組單相電源應(yīng)施加于一個(gè)線端與另外兩個(gè)連在一起的線端上；試驗(yàn)期間單相電壓應(yīng)等于三相試驗(yàn)時(shí)線電壓的√3/2倍。分級(jí)絕緣變壓器需考慮其中性點(diǎn)絕緣是否能夠滿足單相電源的試驗(yàn)要求；Y聯(lián)結(jié)的變壓器，如電源容量不足且有中性點(diǎn)可以利用時(shí)，經(jīng)制造單位與用戶協(xié)商，可在線端與中性點(diǎn)間使用單相電源進(jìn)行試驗(yàn)。首先施加小于70%試驗(yàn)電流進(jìn)行調(diào)試；當(dāng)合閘相角、試驗(yàn)電流的峰值和對(duì)稱值及持續(xù)時(shí)間均達(dá)到要求時(shí)，再進(jìn)行100.0%試驗(yàn)電流的正式試驗(yàn)；小于70%試驗(yàn)電流不記人試驗(yàn)次數(shù)。</p><p style="text-indent:25px">在進(jìn)行大型變壓器低壓側(cè)直阻測(cè)量時(shí),***個(gè)顯示出的數(shù)據(jù)與真實(shí)值差甚遠(yuǎn)，且保持一段時(shí)間的穩(wěn)定,然后逐漸開(kāi)始變化,變大或變化，變化的速度逐漸加快，然后逐漸變慢zui后達(dá)到幾乎不在變化,得到真實(shí)阻值。這種變化一般是朝一個(gè)方向變化，比如一直變小到真實(shí)值。出現(xiàn)忽大忽小,長(zhǎng)時(shí)間飄忽不定,或很長(zhǎng)時(shí)間數(shù)據(jù)保持不變或變化甚小且距真實(shí)值相差甚遠(yuǎn)則應(yīng)檢查接線是否有誤。但對(duì)于超大型變壓器如370MVA或400MVA變壓器在助磁測(cè)量時(shí)有一個(gè)過(guò)沖，在變小過(guò)程中有一個(gè)低于真實(shí)值區(qū)然后回升到真實(shí)值。對(duì)于變壓器綜合測(cè)試儀這種精度要求很高的儀器，生產(chǎn)的時(shí)候?qū)τ诿總€(gè)元器件的要求都很高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧變壓器交流耐壓試驗(yàn),變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368063710938/7461720.png"></div><p style="text-indent:25px">通過(guò)短路阻抗和負(fù)載損耗的測(cè)量，可以驗(yàn)證這兩項(xiàng)指標(biāo)是否在國(guó)家標(biāo)準(zhǔn)及用戶要求范圍內(nèi)，同時(shí)還可以通過(guò)試驗(yàn)發(fā)現(xiàn)繞組設(shè)計(jì)與制造及載流回路和結(jié)構(gòu)的缺陷。 1、短路阻抗及負(fù)載損耗的測(cè)量，應(yīng)當(dāng)在試品的一個(gè)繞組的線端施加額定頻率，且近似正弦的電流，另一個(gè)繞組短路，各相處于同一個(gè)分接位置。測(cè)量應(yīng)在50%～100.0%額定電流下進(jìn)行；為避免繞組發(fā)熱對(duì)試驗(yàn)結(jié)杲產(chǎn)生明顯誤差，試驗(yàn)測(cè)量應(yīng)迅速進(jìn)行；同時(shí)準(zhǔn)確記錄試驗(yàn)時(shí)繞組溫度。 2、短路阻抗及負(fù)載損耗的測(cè)量與空載試驗(yàn)的測(cè)量線路相同，只是測(cè)量中無(wú)需進(jìn)行電壓波形校正。 3、短路阻抗及負(fù)載損耗的測(cè)量接線；對(duì)于額定電流很小的試品，儀表（電壓表及瓦特表電壓線圈）和電壓互感器的吸收電流在測(cè)量電流中不可忽略時(shí)，應(yīng)將電壓取于電源。 4、短路阻抗是在額定頻率和參考溫度下，一對(duì)繞組中某一繞組端子之間的等效串聯(lián)阻抗；其百分?jǐn)?shù)等于短路電壓與額定電壓之比，測(cè)量時(shí)應(yīng)以三相電流的算術(shù)平均值為準(zhǔn)。變壓器是是由初級(jí)線圈、次級(jí)線圈和鐵芯組成，用來(lái)變換電流、電壓的高壓組合電器。中山變壓器在線監(jiān)測(cè)</p><p style="text-indent:25px">變壓器的基本型式，包括兩組繞有導(dǎo)線之線圈，并且彼此以電感方式稱合一起。遼寧變壓器交流耐壓試驗(yàn)</p><p style="text-indent:25px">變壓器綜合測(cè)試臺(tái)的特點(diǎn)有： 1.可顯示測(cè)量電流和測(cè)量時(shí)間。 2.可儲(chǔ)存120次測(cè)量數(shù)據(jù)，斷電不丟失。 3.全部漢字菜單及操作提示，直觀方便。 4.測(cè)量數(shù)據(jù)穩(wěn)定。 5.智能化功率管理技術(shù)，可有效減輕儀器內(nèi)部發(fā)熱。 6.高度智能化設(shè)計(jì)，功能設(shè)置巧妙先進(jìn)，可自動(dòng)判斷測(cè)試線虛接、斷線等故障。 7.保護(hù)功能完善，能可靠保護(hù)反電勢(shì)對(duì)儀器的沖擊，具有自動(dòng)放電指示功能。 8.響應(yīng)速度快，在測(cè)量狀態(tài)可以直接轉(zhuǎn)換分接開(kāi)關(guān)，儀器會(huì)自動(dòng)提示，新的電阻值很快就會(huì)顯示出來(lái)。 9.自動(dòng)程控電流源技術(shù)，無(wú)須手動(dòng)切換電流檔。遼寧變壓器交流耐壓試驗(yàn)</p><p style="text-indent:25px">深圳市展榮新精密電子有限公司致力于儀器儀表，是一家生產(chǎn)型的公司。展榮新精密電子致力于為客戶提供良好的變壓器電感平衡測(cè)試儀，變壓器綜合測(cè)試儀，高壓測(cè)試儀19053，展榮新（臺(tái)儀達(dá)）系列產(chǎn)品，一切以用戶需求為中心，深受廣大客戶的歡迎。公司秉持誠(chéng)信為本的經(jīng)營(yíng)理念，在儀器儀表深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢(shì)，打造儀器儀表良好品牌。展榮新精密電子憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來(lái)的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1372327.html</p></div></div></div></div></div><div id="mgdld83" class="page-right twoColRt"><div id="e39ysu2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="odankrj" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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